| 1 | ! |
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| 2 | ! |
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| 3 | ! |
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| 4 | ! |
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| 5 | MODULE module_cu_nsas |
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| 6 | CONTAINS |
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| 7 | ! |
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| 8 | !------------------------------------------------------------------------------- |
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| 9 | subroutine cu_nsas(dt,p3di,p3d,pi3d,qc3d,qi3d,rho3d,itimestep,stepcu, & |
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| 10 | hbot,htop,cu_act_flag,cudt,curr_secs,adapt_step_flag, & |
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| 11 | rthcuten,rqvcuten,rqccuten,rqicuten, & |
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| 12 | rucuten,rvcuten, & |
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| 13 | qv3d,t3d,raincv,pratec,xland,dz8w,w,u3d,v3d, & |
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| 14 | hpbl,hfx,qfx, & |
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| 15 | mp_physics, & |
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| 16 | p_qc,p_qi,p_first_scalar, & |
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| 17 | cp,cliq,cpv,g,xlv,r_d,r_v,ep_1,ep_2, & |
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| 18 | cice,xls,psat,f_qi,f_qc, & |
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| 19 | ids,ide, jds,jde, kds,kde, & |
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| 20 | ims,ime, jms,jme, kms,kme, & |
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| 21 | its,ite, jts,jte, kts,kte) |
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| 22 | !------------------------------------------------------------------------------- |
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| 23 | implicit none |
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| 24 | !------------------------------------------------------------------------------- |
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| 25 | ! |
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| 26 | !-- dt time step (s) |
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| 27 | !-- p3di 3d pressure (pa) at interface level |
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| 28 | !-- p3d 3d pressure (pa) |
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| 29 | !-- pi3d 3d exner function (dimensionless) |
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| 30 | !-- z height above sea level (m) |
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| 31 | !-- qc3d cloud water mixing ratio (kg/kg) |
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| 32 | !-- qi3d cloud ice mixing ratio (kg/kg) |
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| 33 | !-- qv3d 3d water vapor mixing ratio (kg/kg) |
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| 34 | !-- t3d temperature (k) |
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| 35 | !-- raincv cumulus scheme precipitation (mm) |
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| 36 | !-- w vertical velocity (m/s) |
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| 37 | !-- dz8w dz between full levels (m) |
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| 38 | !-- u3d 3d u-velocity interpolated to theta points (m/s) |
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| 39 | !-- v3d 3d v-velocity interpolated to theta points (m/s) |
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| 40 | !-- ids start index for i in domain |
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| 41 | !-- ide end index for i in domain |
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| 42 | !-- jds start index for j in domain |
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| 43 | !-- jde end index for j in domain |
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| 44 | !-- kds start index for k in domain |
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| 45 | !-- kde end index for k in domain |
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| 46 | !-- ims start index for i in memory |
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| 47 | !-- ime end index for i in memory |
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| 48 | !-- jms start index for j in memory |
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| 49 | !-- jme end index for j in memory |
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| 50 | !-- kms start index for k in memory |
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| 51 | !-- kme end index for k in memory |
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| 52 | !-- its start index for i in tile |
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| 53 | !-- ite end index for i in tile |
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| 54 | !-- jts start index for j in tile |
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| 55 | !-- jte end index for j in tile |
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| 56 | !-- kts start index for k in tile |
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| 57 | !-- kte end index for k in tile |
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| 58 | !------------------------------------------------------------------------------- |
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| 59 | integer, intent(in ) :: ids,ide, jds,jde, kds,kde, & |
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| 60 | ims,ime, jms,jme, kms,kme, & |
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| 61 | its,ite, jts,jte, kts,kte, & |
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| 62 | itimestep, stepcu, & |
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| 63 | p_qc,p_qi,p_first_scalar |
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| 64 | ! |
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| 65 | real, intent(in ) :: cp,cliq,cpv,g,xlv,r_d,r_v,ep_1,ep_2, & |
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| 66 | cice,xls,psat |
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| 67 | real, intent(in ) :: dt |
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| 68 | ! |
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| 69 | real, dimension( ims:ime, kms:kme, jms:jme ),optional , & |
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| 70 | intent(inout) :: rthcuten, & |
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| 71 | rucuten, & |
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| 72 | rvcuten, & |
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| 73 | rqccuten, & |
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| 74 | rqicuten, & |
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| 75 | rqvcuten |
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| 76 | logical, optional :: F_QC,F_QI |
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| 77 | real, dimension( ims:ime, kms:kme, jms:jme ) , & |
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| 78 | intent(in ) :: qv3d, & |
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| 79 | qc3d, & |
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| 80 | qi3d, & |
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| 81 | rho3d, & |
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| 82 | p3d, & |
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| 83 | pi3d, & |
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| 84 | t3d |
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| 85 | real, dimension( ims:ime, kms:kme, jms:jme ) , & |
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| 86 | intent(in ) :: p3di |
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| 87 | real, dimension( ims:ime, kms:kme, jms:jme ) , & |
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| 88 | intent(in ) :: dz8w, & |
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| 89 | w |
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| 90 | real, dimension( ims:ime, jms:jme ) , & |
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| 91 | intent(inout) :: raincv, & |
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| 92 | pratec |
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| 93 | real, dimension( ims:ime, jms:jme ) , & |
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| 94 | intent(out) :: hbot, & |
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| 95 | htop |
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| 96 | real, dimension( ims:ime, jms:jme ) , & |
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| 97 | intent(in ) :: xland |
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| 98 | ! |
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| 99 | real, dimension( ims:ime, kms:kme, jms:jme ) , & |
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| 100 | intent(in ) :: u3d, & |
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| 101 | v3d |
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| 102 | logical, dimension( ims:ime, jms:jme ) , & |
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| 103 | intent(inout) :: cu_act_flag |
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| 104 | real, intent( in) :: cudt |
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| 105 | real, intent( in) :: curr_secs |
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| 106 | logical, intent( in) :: adapt_step_flag |
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| 107 | ! |
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| 108 | real, dimension( ims:ime, jms:jme ) , & |
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| 109 | intent(in ) :: hpbl, & |
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| 110 | hfx, & |
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| 111 | qfx |
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| 112 | integer, intent(in ) :: mp_physics |
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| 113 | integer :: ncloud |
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| 114 | ! |
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| 115 | !local |
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| 116 | ! |
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| 117 | real, dimension( its:ite, jts:jte ) :: raincv1, & |
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| 118 | raincv2, & |
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| 119 | pratec1, & |
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| 120 | pratec2 |
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| 121 | real, dimension( its:ite, kts:kte ) :: del, & |
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| 122 | prsll, & |
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| 123 | dot, & |
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| 124 | u1, & |
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| 125 | v1, & |
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| 126 | t1, & |
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| 127 | q1, & |
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| 128 | qc2, & |
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| 129 | qi2 |
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| 130 | real, dimension( its:ite, kts:kte+1 ) :: prsii, & |
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| 131 | zii |
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| 132 | real, dimension( its:ite, kts:kte ) :: zll |
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| 133 | real, dimension( its:ite) :: rain |
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| 134 | real :: delt,rdelt |
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| 135 | integer, dimension (its:ite) :: kbot, & |
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| 136 | ktop, & |
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| 137 | kuo |
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| 138 | logical :: run_param |
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| 139 | integer :: i,j,k,kp |
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| 140 | ! |
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| 141 | !------------------------------------------------------------------------------- |
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| 142 | ! microphysics scheme --> ncloud |
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| 143 | if (mp_physics .eq. 1) then |
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| 144 | ncloud = 0 |
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| 145 | elseif ( mp_physics .eq. 2 .or. mp_physics .eq. 3 ) then |
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| 146 | ncloud = 2 |
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| 147 | elseif ( mp_physics .eq. 5 ) then |
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| 148 | ncloud = 3 |
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| 149 | elseif ( mp_physics .eq. 4 .or. mp_physics .eq. 14 ) then |
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| 150 | ncloud = 4 |
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| 151 | elseif ( mp_physics .eq. 9) then |
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| 152 | ncloud = 6 |
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| 153 | else |
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| 154 | ncloud = 5 |
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| 155 | endif |
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| 156 | ! |
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| 157 | !------------------------------------------------------------------------------- |
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| 158 | ! |
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| 159 | !*** check to see if this is a convection timestep |
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| 160 | ! |
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| 161 | if (adapt_step_flag) then |
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| 162 | if ( (itimestep .eq. 0) .or. (cudt .eq. 0) .or. & |
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| 163 | (curr_secs + dt >= (int(curr_secs/(cudt*60))+1)*cudt*60)) then |
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| 164 | run_param = .true. |
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| 165 | else |
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| 166 | run_param = .false. |
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| 167 | endif |
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| 168 | else |
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| 169 | if (MOD(itimestep,stepcu) .EQ. 0 .or. itimestep .eq. 0) then |
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| 170 | run_param = .true. |
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| 171 | else |
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| 172 | run_param = .false. |
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| 173 | endif |
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| 174 | endif |
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| 175 | !------------------------------------------------------------------------------- |
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| 176 | if(run_param) then |
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| 177 | do j=jts,jte |
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| 178 | do i=its,ite |
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| 179 | cu_act_flag(i,j)=.TRUE. |
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| 180 | enddo |
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| 181 | enddo |
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| 182 | delt=dt*stepcu |
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| 183 | rdelt=1./delt |
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| 184 | ! |
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| 185 | do j = jts,jte !outer most J_loop |
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| 186 | do k = kts,kte |
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| 187 | kp = k+1 |
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| 188 | do i = its,ite |
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| 189 | dot(i,k) = -5.0e-4*g*rho3d(i,k,j)*(w(i,k,j)+w(i,kp,j)) |
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| 190 | prsll(i,k)=p3d(i,k,j)*0.001 |
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| 191 | prsii(i,k)=p3di(i,k,j)*0.001 |
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| 192 | enddo |
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| 193 | enddo |
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| 194 | do i = its,ite |
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| 195 | prsii(i,kte+1)=p3di(i,kte+1,j)*0.001 |
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| 196 | enddo |
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| 197 | ! |
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| 198 | do i=its,ite |
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| 199 | zii(i,1)=0.0 |
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| 200 | enddo |
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| 201 | ! |
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| 202 | do k=kts,kte |
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| 203 | do i=its,ite |
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| 204 | zii(i,k+1)=zii(i,k)+dz8w(i,k,j) |
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| 205 | enddo |
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| 206 | enddo |
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| 207 | ! |
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| 208 | do k=kts,kte |
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| 209 | do i=its,ite |
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| 210 | zll(i,k)=0.5*(zii(i,k)+zii(i,k+1)) |
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| 211 | enddo |
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| 212 | enddo |
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| 213 | ! |
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| 214 | do k=kts,kte |
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| 215 | do i=its,ite |
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| 216 | del(i,k)=prsll(i,k)*g/r_d*dz8w(i,k,j)/t3d(i,k,j) |
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| 217 | u1(i,k)=u3d(i,k,j) |
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| 218 | v1(i,k)=v3d(i,k,j) |
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| 219 | t1(i,k)=t3d(i,k,j) |
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| 220 | q1(i,k)=qv3d(i,k,j) |
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| 221 | qi2(i,k) = qi3d(i,k,j) |
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| 222 | qc2(i,k) = qc3d(i,k,j) |
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| 223 | enddo |
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| 224 | enddo |
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| 225 | ! |
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| 226 | ! NCEP SAS |
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| 227 | call nsas2d(delt=dt,del=del(its,kts),prsl=prsll(its,kts), & |
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| 228 | prsi=prsii(its,kts),prslk=pi3d(ims,kms,j),zl=zll(its,kts), & |
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| 229 | zi=zii(its,kts),ncloud=ncloud,qc2=qc2(its,kts),qi2=qi2(its,kts), & |
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| 230 | q1=q1(its,kts),t1=t1(its,kts),rain=rain(its), & |
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| 231 | kbot=kbot(its),ktop=ktop(its), & |
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| 232 | kuo=kuo(its), & |
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| 233 | lat=j,slimsk=xland(ims,j),dot=dot(its,kts), & |
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| 234 | u1=u1(its,kts), v1=v1(its,kts), & |
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| 235 | cp_=cp,cliq_=cliq,cvap_=cpv,g_=g,hvap_=xlv, & |
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| 236 | rd_=r_d,rv_=r_v,fv_=ep_1,ep2=ep_2, & |
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| 237 | cice=cice,xls=xls,psat=psat, & |
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| 238 | ids=ids,ide=ide, jds=jds,jde=jde, kds=kds,kde=kde, & |
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| 239 | ims=ims,ime=ime, jms=jms,jme=jme, kms=kms,kme=kme, & |
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| 240 | its=its,ite=ite, jts=jts,jte=jte, kts=kts,kte=kte ) |
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| 241 | ! |
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| 242 | do i=its,ite |
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| 243 | pratec1(i,j)=rain(i)*1000./(stepcu*dt) |
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| 244 | raincv1(i,j)=rain(i)*1000./(stepcu) |
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| 245 | enddo |
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| 246 | ! |
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| 247 | ! NCEP SCV |
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| 248 | call nscv2d(delt=dt,del=del(its,kts),prsl=prsll(its,kts), & |
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| 249 | prsi=prsii(its,kts),prslk=pi3d(ims,kms,j),zl=zll(its,kts), & |
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| 250 | zi=zii(its,kts),ncloud=ncloud,qc2=qc2(its,kts),qi2=qi2(its,kts), & |
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| 251 | q1=q1(its,kts),t1=t1(its,kts),rain=rain(its), & |
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| 252 | kbot=kbot(its),ktop=ktop(its), & |
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| 253 | kuo=kuo(its), & |
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| 254 | slimsk=xland(ims,j),dot=dot(its,kts), & |
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| 255 | u1=u1(its,kts), v1=v1(its,kts), & |
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| 256 | cp_=cp,cliq_=cliq,cvap_=cpv,g_=g,hvap_=xlv, & |
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| 257 | rd_=r_d,rv_=r_v,fv_=ep_1,ep2=ep_2, & |
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| 258 | cice=cice,xls=xls,psat=psat, & |
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| 259 | hpbl=hpbl(ims,j),hfx=hfx(ims,j),qfx=qfx(ims,j), & |
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| 260 | ids=ids,ide=ide, jds=jds,jde=jde, kds=kds,kde=kde, & |
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| 261 | ims=ims,ime=ime, jms=jms,jme=jme, kms=kms,kme=kme, & |
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| 262 | its=its,ite=ite, jts=jts,jte=jte, kts=kts,kte=kte ) |
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| 263 | ! |
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| 264 | do i=its,ite |
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| 265 | pratec2(i,j)=rain(i)*1000./(stepcu*dt) |
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| 266 | raincv2(i,j)=rain(i)*1000./(stepcu) |
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| 267 | enddo |
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| 268 | ! |
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| 269 | do i=its,ite |
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| 270 | raincv(i,j) = raincv1(i,j) + raincv2(i,j) |
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| 271 | pratec(i,j) = pratec1(i,j) + pratec2(i,j) |
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| 272 | hbot(i,j) = kbot(i) |
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| 273 | htop(i,j) = ktop(i) |
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| 274 | enddo |
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| 275 | ! |
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| 276 | IF(PRESENT(rthcuten).AND.PRESENT(rqvcuten)) THEN |
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| 277 | do k = kts,kte |
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| 278 | do i= its,ite |
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| 279 | rthcuten(i,k,j)=(t1(i,k)-t3d(i,k,j))/pi3d(i,k,j)*rdelt |
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| 280 | rqvcuten(i,k,j)=(q1(i,k)-qv3d(i,k,j))*rdelt |
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| 281 | enddo |
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| 282 | enddo |
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| 283 | ENDIF |
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| 284 | ! |
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| 285 | IF(PRESENT(rucuten).AND.PRESENT(rvcuten)) THEN |
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| 286 | do k = kts,kte |
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| 287 | do i= its,ite |
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| 288 | rucuten(i,k,j)=(u1(i,k)-u3d(i,k,j))*rdelt |
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| 289 | rvcuten(i,k,j)=(v1(i,k)-v3d(i,k,j))*rdelt |
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| 290 | enddo |
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| 291 | enddo |
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| 292 | ENDIF |
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| 293 | ! |
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| 294 | if(PRESENT( rqicuten )) THEN |
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| 295 | IF ( F_QI ) THEN |
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| 296 | do k=kts,kte |
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| 297 | do i=its,ite |
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| 298 | rqicuten(i,k,j)=(qi2(i,k)-qi3d(i,k,j))*rdelt |
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| 299 | enddo |
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| 300 | enddo |
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| 301 | endif |
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| 302 | endif |
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| 303 | if(PRESENT( rqccuten )) THEN |
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| 304 | IF ( F_QC ) THEN |
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| 305 | do k=kts,kte |
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| 306 | do i=its,ite |
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| 307 | rqccuten(i,k,j)=(qc2(i,k)-qc3d(i,k,j))*rdelt |
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| 308 | enddo |
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| 309 | enddo |
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| 310 | endif |
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| 311 | endif |
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| 312 | ! |
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| 313 | enddo ! outer most J_loop |
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| 314 | endif |
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| 315 | ! |
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| 316 | end subroutine cu_nsas |
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| 317 | ! |
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| 318 | !============================================================================== |
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| 319 | ! NCEP SAS (Deep Convection Scheme) |
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| 320 | !============================================================================== |
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| 321 | subroutine nsas2d(delt,del,prsl,prsi,prslk,zl,zi, & |
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| 322 | ncloud, & |
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| 323 | qc2,qi2, & |
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| 324 | q1,t1,rain,kbot,ktop, & |
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| 325 | kuo, & |
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| 326 | lat,slimsk,dot,u1,v1,cp_,cliq_,cvap_,g_,hvap_,rd_,rv_,fv_,ep2, & |
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| 327 | cice,xls,psat, & |
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| 328 | ids,ide, jds,jde, kds,kde, & |
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| 329 | ims,ime, jms,jme, kms,kme, & |
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| 330 | its,ite, jts,jte, kts,kte) |
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| 331 | ! |
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| 332 | !------------------------------------------------------------------------------ |
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| 333 | ! |
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| 334 | ! subprogram: phys_cps_sas computes convective heating and moistening |
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| 335 | ! and momentum transport |
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| 336 | ! |
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| 337 | ! abstract: computes convective heating and moistening using a one |
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| 338 | ! cloud type arakawa-schubert convection scheme originally developed |
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| 339 | ! by georg grell. the scheme has been revised at ncep since initial |
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| 340 | ! implementation in 1993. it includes updraft and downdraft effects. |
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| 341 | ! the closure is the cloud work function. both updraft and downdraft |
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| 342 | ! are assumed to be saturated and the heating and moistening are |
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| 343 | ! accomplished by the compensating environment. convective momentum transport |
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| 344 | ! is taken into account. the name comes from "simplified arakawa-schubert |
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| 345 | ! convection parameterization". |
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| 346 | ! |
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| 347 | ! developed by hua-lu pan, wan-shu wu, songyou hong, and jongil han |
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| 348 | ! implemented into wrf by kyosun sunny lim and songyou hong |
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| 349 | ! module with cpp-based options is available in grims |
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| 350 | ! |
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| 351 | ! program history log: |
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| 352 | ! 92-03-01 hua-lu pan operational development |
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| 353 | ! 96-03-01 song-you hong revised closure, and trigger |
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| 354 | ! 99-03-01 hua-lu pan multiple clouds |
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| 355 | ! 06-03-01 young-hwa byun closure based on moisture convergence (optional) |
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| 356 | ! 09-10-01 jung-eun kim f90 format with standard physics modules |
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| 357 | ! 10-07-01 jong-il han revised cloud model,trigger, as in gfs july 2010 |
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| 358 | ! 10-12-01 kyosun sunny lim wrf compatible version |
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| 359 | ! |
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| 360 | ! |
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| 361 | ! usage: call phys_cps_sas(delt,delx,del,prsl,prsi,prslk,prsik,zl,zi, & |
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| 362 | ! q2,q1,t1,u1,v1,rcs,slimsk,dot,cldwrk,rain, & |
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| 363 | ! jcap,ncloud,lat,kbot,ktop,kuo, & |
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| 364 | ! ids,ide, jds,jde, kds,kde, & |
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| 365 | ! ims,ime, jms,jme, kms,kme, & |
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| 366 | ! its,ite, jts,jte, kts,kte) |
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| 367 | ! |
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| 368 | ! delt - real model integration time step |
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| 369 | ! delx - real model grid interval |
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| 370 | ! del - real (kms:kme) sigma layer thickness |
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| 371 | ! prsl - real (ims:ime,kms:kme) pressure values |
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| 372 | ! prsi - real (ims:ime,kms:kme) pressure values at interface level |
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| 373 | ! prslk - real (ims:ime,kms:kme) pressure values to the kappa |
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| 374 | ! prsik - real (ims:ime,kms:kme) pressure values to the kappa at interface lev. |
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| 375 | ! zl - real (ims:ime,kms:kme) height above sea level |
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| 376 | ! zi - real (ims:ime,kms:kme) height above sea level at interface level |
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| 377 | ! rcs - real |
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| 378 | ! slimsk - real (ims:ime) land(1),sea(0), ice(2) flag |
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| 379 | ! dot - real (ims:ime,kms:kme) vertical velocity |
|---|
| 380 | ! jcap - integer spectral truncation |
|---|
| 381 | ! ncloud - integer number of hydrometeors |
|---|
| 382 | ! lat - integer current latitude index |
|---|
| 383 | ! |
|---|
| 384 | ! output argument list: |
|---|
| 385 | ! q2 - real (ims:ime,kms:kme) detrained hydrometeors in kg/kg |
|---|
| 386 | ! - in case of the --> qc2(cloud), qi2(ice) |
|---|
| 387 | ! q1 - real (ims:ime,kms:kme) adjusted specific humidity in kg/kg |
|---|
| 388 | ! t1 - real (ims:ime,kms:kme) adjusted temperature in kelvin |
|---|
| 389 | ! u1 - real (ims:ime,kms:kme) adjusted zonal wind in m/s |
|---|
| 390 | ! v1 - real (ims:ime,kms:kme) adjusted meridional wind in m/s |
|---|
| 391 | ! cldwrk - real (ims:ime) cloud work function |
|---|
| 392 | ! rain - real (ims:ime) convective rain in meters |
|---|
| 393 | ! kbot - integer (ims:ime) cloud bottom level |
|---|
| 394 | ! ktop - integer (ims:ime) cloud top level |
|---|
| 395 | ! kuo - integer (ims:ime) bit flag indicating deep convection |
|---|
| 396 | ! |
|---|
| 397 | ! subprograms called: |
|---|
| 398 | ! fpvs - function to compute saturation vapor pressure |
|---|
| 399 | ! |
|---|
| 400 | ! remarks: function fpvs is inlined by fpp. |
|---|
| 401 | ! nonstandard automatic arrays are used. |
|---|
| 402 | ! |
|---|
| 403 | ! references : |
|---|
| 404 | ! pan and wu (1995, ncep office note) |
|---|
| 405 | ! hong and pan (1998, mon wea rev) |
|---|
| 406 | ! park and hong (2007,jmsj) |
|---|
| 407 | ! byun and hong (2007, mon wea rev) |
|---|
| 408 | ! han and pan (2011, wea. forecasting) |
|---|
| 409 | ! |
|---|
| 410 | !------------------------------------------------------------------------------ |
|---|
| 411 | !------------------------------------------------------------------------------ |
|---|
| 412 | implicit none |
|---|
| 413 | !------------------------------------------------------------------------------ |
|---|
| 414 | ! |
|---|
| 415 | ! model tunable parameters |
|---|
| 416 | ! |
|---|
| 417 | real,parameter :: alphal = 0.5, alphas = 0.5 |
|---|
| 418 | real,parameter :: betal = 0.05, betas = 0.05 |
|---|
| 419 | real,parameter :: pdpdwn = 0.0, pdetrn = 200.0 |
|---|
| 420 | real,parameter :: c0 = 0.002, c1 = 0.002 |
|---|
| 421 | real,parameter :: pgcon = 0.55 |
|---|
| 422 | real,parameter :: xlamdd = 1.0e-4, xlamde = 1.0e-4 |
|---|
| 423 | real,parameter :: clam = 0.1, cxlamu = 1.0e-4 |
|---|
| 424 | real,parameter :: aafac = 0.1 |
|---|
| 425 | real,parameter :: dthk=25. |
|---|
| 426 | real,parameter :: cincrmax = 180.,cincrmin = 120. |
|---|
| 427 | real,parameter :: W1l = -8.E-3 |
|---|
| 428 | real,parameter :: W2l = -4.E-2 |
|---|
| 429 | real,parameter :: W3l = -5.E-3 |
|---|
| 430 | real,parameter :: W4l = -5.E-4 |
|---|
| 431 | real,parameter :: W1s = -2.E-4 |
|---|
| 432 | real,parameter :: W2s = -2.E-3 |
|---|
| 433 | real,parameter :: W3s = -1.E-3 |
|---|
| 434 | real,parameter :: W4s = -2.E-5 |
|---|
| 435 | real,parameter :: mbdt = 10., edtmaxl = 0.3, edtmaxs = 0.3 |
|---|
| 436 | real,parameter :: evfacts = 0.3, evfactl = 0.3 |
|---|
| 437 | ! |
|---|
| 438 | real,parameter :: tf=233.16,tcr=263.16,tcrf=1.0/(tcr-tf) |
|---|
| 439 | real,parameter :: xk1=2.e-5,xlhor=3.e4,xhver=5000.,theimax=1. |
|---|
| 440 | real,parameter :: xc1=1.e-7,xc2=1.e4,xc3=3.e3,ecesscr=3.0,edtk1=3.e4 |
|---|
| 441 | ! |
|---|
| 442 | ! passing variables |
|---|
| 443 | ! |
|---|
| 444 | real :: cp_,cliq_,cvap_,g_,hvap_,rd_,rv_,fv_,ep2 |
|---|
| 445 | real :: pi_,qmin_,t0c_,cice,xlv0,xls,psat |
|---|
| 446 | integer :: lat, & |
|---|
| 447 | ncloud, & |
|---|
| 448 | ids,ide, jds,jde, kds,kde, & |
|---|
| 449 | ims,ime, jms,jme, kms,kme, & |
|---|
| 450 | its,ite, jts,jte, kts,kte |
|---|
| 451 | ! |
|---|
| 452 | real :: delt,rcs |
|---|
| 453 | real :: del(its:ite,kts:kte), & |
|---|
| 454 | prsl(its:ite,kts:kte),prslk(ims:ime,kms:kme), & |
|---|
| 455 | prsi(its:ite,kts:kte+1), & |
|---|
| 456 | zl(its:ite,kts:kte),zi(its:ite,kts:kte+1), & |
|---|
| 457 | q1(its:ite,kts:kte),t1(its:ite,kts:kte), & |
|---|
| 458 | u1(its:ite,kts:kte),v1(its:ite,kts:kte), & |
|---|
| 459 | dot(its:ite,kts:kte) |
|---|
| 460 | real :: qi2(its:ite,kts:kte) |
|---|
| 461 | real :: qc2(its:ite,kts:kte) |
|---|
| 462 | ! |
|---|
| 463 | real :: rain(its:ite) |
|---|
| 464 | integer :: kbot(its:ite),ktop(its:ite),kuo(its:ite) |
|---|
| 465 | real :: slimsk(ims:ime) |
|---|
| 466 | ! |
|---|
| 467 | ! |
|---|
| 468 | ! local variables and arrays |
|---|
| 469 | ! |
|---|
| 470 | integer :: i,k,kmax,kbmax,kbm,jmn,indx,indp,kts1,kte1,kmax1,kk |
|---|
| 471 | real :: p(its:ite,kts:kte),pdot(its:ite),acrtfct(its:ite) |
|---|
| 472 | real :: uo(its:ite,kts:kte),vo(its:ite,kts:kte) |
|---|
| 473 | real :: to(its:ite,kts:kte),qo(its:ite,kts:kte) |
|---|
| 474 | real :: hcko(its:ite,kts:kte) |
|---|
| 475 | real :: qcko(its:ite,kts:kte),eta(its:ite,kts:kte) |
|---|
| 476 | real :: etad(its:ite,kts:kte) |
|---|
| 477 | real :: qrcdo(its:ite,kts:kte) |
|---|
| 478 | real :: pwo(its:ite,kts:kte),pwdo(its:ite,kts:kte) |
|---|
| 479 | real :: dtconv(its:ite) |
|---|
| 480 | real :: deltv(its:ite),acrt(its:ite) |
|---|
| 481 | real :: qeso(its:ite,kts:kte) |
|---|
| 482 | real :: tvo(its:ite,kts:kte),dbyo(its:ite,kts:kte) |
|---|
| 483 | real :: heo(its:ite,kts:kte),heso(its:ite,kts:kte) |
|---|
| 484 | real :: qrcd(its:ite,kts:kte) |
|---|
| 485 | real :: dellah(its:ite,kts:kte),dellaq(its:ite,kts:kte) |
|---|
| 486 | ! |
|---|
| 487 | integer :: kb(its:ite),kbcon(its:ite) |
|---|
| 488 | integer :: kbcon1(its:ite) |
|---|
| 489 | real :: hmax(its:ite),delq(its:ite) |
|---|
| 490 | real :: hkbo(its:ite),qkbo(its:ite),pbcdif(its:ite) |
|---|
| 491 | integer :: kbds(its:ite),lmin(its:ite),jmin(its:ite) |
|---|
| 492 | integer :: ktcon(its:ite) |
|---|
| 493 | integer :: ktcon1(its:ite) |
|---|
| 494 | integer :: kbdtr(its:ite),kpbl(its:ite) |
|---|
| 495 | integer :: klcl(its:ite),ktdown(its:ite) |
|---|
| 496 | real :: vmax(its:ite) |
|---|
| 497 | real :: hmin(its:ite),pwavo(its:ite) |
|---|
| 498 | real :: aa1(its:ite),vshear(its:ite) |
|---|
| 499 | real :: qevap(its:ite) |
|---|
| 500 | real :: edt(its:ite) |
|---|
| 501 | real :: edto(its:ite),pwevo(its:ite) |
|---|
| 502 | real :: qcond(its:ite) |
|---|
| 503 | real :: hcdo(its:ite,kts:kte) |
|---|
| 504 | real :: ddp(its:ite),pp2(its:ite) |
|---|
| 505 | real :: qcdo(its:ite,kts:kte) |
|---|
| 506 | real :: adet(its:ite),aatmp(its:ite) |
|---|
| 507 | real :: xhkb(its:ite),xqkb(its:ite) |
|---|
| 508 | real :: xpwav(its:ite),xpwev(its:ite),xhcd(its:ite,kts:kte) |
|---|
| 509 | real :: xaa0(its:ite),f(its:ite),xk(its:ite) |
|---|
| 510 | real :: xmb(its:ite) |
|---|
| 511 | real :: edtx(its:ite),xqcd(its:ite,kts:kte) |
|---|
| 512 | real :: hsbar(its:ite),xmbmax(its:ite) |
|---|
| 513 | real :: xlamb(its:ite,kts:kte),xlamd(its:ite) |
|---|
| 514 | real :: excess(its:ite) |
|---|
| 515 | real :: plcl(its:ite) |
|---|
| 516 | real :: delhbar(its:ite),delqbar(its:ite),deltbar(its:ite) |
|---|
| 517 | real,save :: pcrit(15), acritt(15) |
|---|
| 518 | real :: acrit(15) |
|---|
| 519 | real :: qcirs(its:ite,kts:kte),qrski(its:ite) |
|---|
| 520 | real :: dellal(its:ite,kts:kte) |
|---|
| 521 | real :: rntot(its:ite),delqev(its:ite),delq2(its:ite) |
|---|
| 522 | ! |
|---|
| 523 | real :: fent1(its:ite,kts:kte),fent2(its:ite,kts:kte) |
|---|
| 524 | real :: frh(its:ite,kts:kte) |
|---|
| 525 | real :: xlamud(its:ite),sumx(its:ite) |
|---|
| 526 | real :: aa2(its:ite) |
|---|
| 527 | real :: ucko(its:ite,kts:kte),vcko(its:ite,kts:kte) |
|---|
| 528 | real :: ucdo(its:ite,kts:kte),vcdo(its:ite,kts:kte) |
|---|
| 529 | real :: dellau(its:ite,kts:kte),dellav(its:ite,kts:kte) |
|---|
| 530 | real :: delubar(its:ite),delvbar(its:ite) |
|---|
| 531 | real :: qlko_ktcon(its:ite) |
|---|
| 532 | ! |
|---|
| 533 | real :: alpha,beta, & |
|---|
| 534 | dt2,dtmin,dtmax,dtmaxl,dtmaxs, & |
|---|
| 535 | el2orc,eps,fact1,fact2, & |
|---|
| 536 | tem,tem1,cincr |
|---|
| 537 | real :: dz,dp,es,pprime,qs, & |
|---|
| 538 | dqsdp,desdt,dqsdt,gamma, & |
|---|
| 539 | dt,dq,po,thei,delza,dzfac, & |
|---|
| 540 | thec,theb,thekb,thekh,theavg,thedif, & |
|---|
| 541 | omgkb,omgkbp1,omgdif,omgfac,heom,rh,thermal,chi, & |
|---|
| 542 | factor,onemf,dz1,qrch,etah,qlk,qc,rfact,shear, & |
|---|
| 543 | e1,dh,deta,detad,theom,edtmax,dhh,dg,aup,adw, & |
|---|
| 544 | dv1,dv2,dv3,dv1q,dv2q,dv3q,dvq1, & |
|---|
| 545 | dv1u,dv2u,dv3u,dv1v,dv2v,dv3v, & |
|---|
| 546 | dellat,xdby,xqrch,xqc,xpw,xpwd, & |
|---|
| 547 | w1,w2,w3,w4,qrsk,evef,ptem,ptem1 |
|---|
| 548 | ! |
|---|
| 549 | logical :: totflg, cnvflg(its:ite),flg(its:ite) |
|---|
| 550 | ! |
|---|
| 551 | ! climatological critical cloud work functions for closure |
|---|
| 552 | ! |
|---|
| 553 | data pcrit/850.,800.,750.,700.,650.,600.,550.,500.,450.,400., & |
|---|
| 554 | 350.,300.,250.,200.,150./ |
|---|
| 555 | data acritt/.0633,.0445,.0553,.0664,.075,.1082,.1521,.2216, & |
|---|
| 556 | .3151,.3677,.41,.5255,.7663,1.1686,1.6851/ |
|---|
| 557 | ! |
|---|
| 558 | !----------------------------------------------------------------------- |
|---|
| 559 | ! |
|---|
| 560 | ! define miscellaneous values |
|---|
| 561 | ! |
|---|
| 562 | pi_ = 3.14159 |
|---|
| 563 | qmin_ = 1.0e-30 |
|---|
| 564 | t0c_ = 273.15 |
|---|
| 565 | xlv0 = hvap_ |
|---|
| 566 | rcs = 1. |
|---|
| 567 | el2orc = hvap_*hvap_/(rv_*cp_) |
|---|
| 568 | eps = rd_/rv_ |
|---|
| 569 | fact1 = (cvap_-cliq_)/rv_ |
|---|
| 570 | fact2 = hvap_/rv_-fact1*t0c_ |
|---|
| 571 | kts1 = kts + 1 |
|---|
| 572 | kte1 = kte - 1 |
|---|
| 573 | dt2 = delt |
|---|
| 574 | dtmin = max(dt2,1200.) |
|---|
| 575 | dtmax = max(dt2,3600.) |
|---|
| 576 | ! |
|---|
| 577 | ! |
|---|
| 578 | ! initialize arrays |
|---|
| 579 | ! |
|---|
| 580 | do i = its,ite |
|---|
| 581 | rain(i) = 0.0 |
|---|
| 582 | kbot(i) = kte+1 |
|---|
| 583 | ktop(i) = 0 |
|---|
| 584 | kuo(i) = 0 |
|---|
| 585 | cnvflg(i) = .true. |
|---|
| 586 | dtconv(i) = 3600. |
|---|
| 587 | pdot(i) = 0.0 |
|---|
| 588 | edto(i) = 0.0 |
|---|
| 589 | edtx(i) = 0.0 |
|---|
| 590 | xmbmax(i) = 0.3 |
|---|
| 591 | excess(i) = 0.0 |
|---|
| 592 | plcl(i) = 0.0 |
|---|
| 593 | kpbl(i) = 1 |
|---|
| 594 | aa2(i) = 0.0 |
|---|
| 595 | qlko_ktcon(i) = 0.0 |
|---|
| 596 | pbcdif(i)= 0.0 |
|---|
| 597 | lmin(i) = 1 |
|---|
| 598 | jmin(i) = 1 |
|---|
| 599 | edt(i) = 0.0 |
|---|
| 600 | enddo |
|---|
| 601 | ! |
|---|
| 602 | do k = 1,15 |
|---|
| 603 | acrit(k) = acritt(k) * (975. - pcrit(k)) |
|---|
| 604 | enddo |
|---|
| 605 | ! |
|---|
| 606 | ! Define top layer for search of the downdraft originating layer |
|---|
| 607 | ! and the maximum thetae for updraft |
|---|
| 608 | ! |
|---|
| 609 | kbmax = kte |
|---|
| 610 | kbm = kte |
|---|
| 611 | kmax = kte |
|---|
| 612 | do k = kts,kte |
|---|
| 613 | do i = its,ite |
|---|
| 614 | if(prsl(i,k).gt.prsi(i,1)*0.45) kbmax = k + 1 |
|---|
| 615 | if(prsl(i,k).gt.prsi(i,1)*0.70) kbm = k + 1 |
|---|
| 616 | if(prsl(i,k).gt.prsi(i,1)*0.04) kmax = k + 1 |
|---|
| 617 | enddo |
|---|
| 618 | enddo |
|---|
| 619 | kmax = min(kmax,kte) |
|---|
| 620 | kmax1 = kmax - 1 |
|---|
| 621 | kbm = min(kbm,kte) |
|---|
| 622 | ! |
|---|
| 623 | ! convert surface pressure to mb from cb |
|---|
| 624 | ! |
|---|
| 625 | do k = kts,kte |
|---|
| 626 | do i = its,ite |
|---|
| 627 | pwo(i,k) = 0.0 |
|---|
| 628 | pwdo(i,k) = 0.0 |
|---|
| 629 | dellal(i,k) = 0.0 |
|---|
| 630 | hcko(i,k) = 0.0 |
|---|
| 631 | qcko(i,k) = 0.0 |
|---|
| 632 | hcdo(i,k) = 0.0 |
|---|
| 633 | qcdo(i,k) = 0.0 |
|---|
| 634 | enddo |
|---|
| 635 | enddo |
|---|
| 636 | ! |
|---|
| 637 | do k = kts,kmax |
|---|
| 638 | do i = its,ite |
|---|
| 639 | p(i,k) = prsl(i,k) * 10. |
|---|
| 640 | pwo(i,k) = 0.0 |
|---|
| 641 | pwdo(i,k) = 0.0 |
|---|
| 642 | to(i,k) = t1(i,k) |
|---|
| 643 | qo(i,k) = q1(i,k) |
|---|
| 644 | dbyo(i,k) = 0.0 |
|---|
| 645 | fent1(i,k) = 1.0 |
|---|
| 646 | fent2(i,k) = 1.0 |
|---|
| 647 | frh(i,k) = 0.0 |
|---|
| 648 | ucko(i,k) = 0.0 |
|---|
| 649 | vcko(i,k) = 0.0 |
|---|
| 650 | ucdo(i,k) = 0.0 |
|---|
| 651 | vcdo(i,k) = 0.0 |
|---|
| 652 | uo(i,k) = u1(i,k) * rcs |
|---|
| 653 | vo(i,k) = v1(i,k) * rcs |
|---|
| 654 | enddo |
|---|
| 655 | enddo |
|---|
| 656 | ! |
|---|
| 657 | ! column variables |
|---|
| 658 | ! |
|---|
| 659 | ! p is pressure of the layer (mb) |
|---|
| 660 | ! t is temperature at t-dt (k)..tn |
|---|
| 661 | ! q is mixing ratio at t-dt (kg/kg)..qn |
|---|
| 662 | ! to is temperature at t+dt (k)... this is after advection and turbulan |
|---|
| 663 | ! qo is mixing ratio at t+dt (kg/kg)..q1 |
|---|
| 664 | ! |
|---|
| 665 | do k = kts,kmax |
|---|
| 666 | do i = its,ite |
|---|
| 667 | qeso(i,k)=0.01*fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 668 | qeso(i,k) = eps * qeso(i,k) / (p(i,k) + (eps-1.) * qeso(i,k)) |
|---|
| 669 | qeso(i,k) = max(qeso(i,k),qmin_) |
|---|
| 670 | qo(i,k) = max(qo(i,k), 1.e-10 ) |
|---|
| 671 | tvo(i,k) = to(i,k) + fv_ * to(i,k) * max(qo(i,k),qmin_) |
|---|
| 672 | enddo |
|---|
| 673 | enddo |
|---|
| 674 | ! |
|---|
| 675 | ! compute moist static energy |
|---|
| 676 | ! |
|---|
| 677 | do k = kts,kmax |
|---|
| 678 | do i = its,ite |
|---|
| 679 | heo(i,k) = g_ * zl(i,k) + cp_* to(i,k) + hvap_ * qo(i,k) |
|---|
| 680 | heso(i,k) = g_ * zl(i,k) + cp_* to(i,k) + hvap_ * qeso(i,k) |
|---|
| 681 | enddo |
|---|
| 682 | enddo |
|---|
| 683 | ! |
|---|
| 684 | ! Determine level with largest moist static energy |
|---|
| 685 | ! This is the level where updraft starts |
|---|
| 686 | ! |
|---|
| 687 | do i = its,ite |
|---|
| 688 | hmax(i) = heo(i,1) |
|---|
| 689 | kb(i) = 1 |
|---|
| 690 | enddo |
|---|
| 691 | ! |
|---|
| 692 | do k = kts1,kbm |
|---|
| 693 | do i = its,ite |
|---|
| 694 | if(heo(i,k).gt.hmax(i)) then |
|---|
| 695 | kb(i) = k |
|---|
| 696 | hmax(i) = heo(i,k) |
|---|
| 697 | endif |
|---|
| 698 | enddo |
|---|
| 699 | enddo |
|---|
| 700 | ! |
|---|
| 701 | do k = kts,kmax1 |
|---|
| 702 | do i = its,ite |
|---|
| 703 | if(cnvflg(i)) then |
|---|
| 704 | dz = .5 * (zl(i,k+1) - zl(i,k)) |
|---|
| 705 | dp = .5 * (p(i,k+1) - p(i,k)) |
|---|
| 706 | es = 0.01*fpvs(to(i,k+1),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 707 | pprime = p(i,k+1) + (eps-1.) * es |
|---|
| 708 | qs = eps * es / pprime |
|---|
| 709 | dqsdp = - qs / pprime |
|---|
| 710 | desdt = es * (fact1 / to(i,k+1) + fact2 / (to(i,k+1)**2)) |
|---|
| 711 | dqsdt = qs * p(i,k+1) * desdt / (es * pprime) |
|---|
| 712 | gamma = el2orc * qeso(i,k+1) / (to(i,k+1)**2) |
|---|
| 713 | dt = (g_ * dz + hvap_ * dqsdp * dp) / (cp_ * (1. + gamma)) |
|---|
| 714 | dq = dqsdt * dt + dqsdp * dp |
|---|
| 715 | to(i,k) = to(i,k+1) + dt |
|---|
| 716 | qo(i,k) = qo(i,k+1) + dq |
|---|
| 717 | po = .5 * (p(i,k) + p(i,k+1)) |
|---|
| 718 | qeso(i,k)=0.01*fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 719 | qeso(i,k) = eps * qeso(i,k) / (po + (eps-1.) * qeso(i,k)) |
|---|
| 720 | qeso(i,k) = max(qeso(i,k),qmin_) |
|---|
| 721 | qo(i,k) = max(qo(i,k), 1.e-10) |
|---|
| 722 | frh(i,k) = 1. - min(qo(i,k)/qeso(i,k), 1.) |
|---|
| 723 | heo(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 724 | cp_ * to(i,k) + hvap_ * qo(i,k) |
|---|
| 725 | heso(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 726 | cp_ * to(i,k) + hvap_ * qeso(i,k) |
|---|
| 727 | uo(i,k) = .5 * (uo(i,k) + uo(i,k+1)) |
|---|
| 728 | vo(i,k) = .5 * (vo(i,k) + vo(i,k+1)) |
|---|
| 729 | endif |
|---|
| 730 | enddo |
|---|
| 731 | enddo |
|---|
| 732 | ! |
|---|
| 733 | ! look for convective cloud base as the level of free convection |
|---|
| 734 | ! |
|---|
| 735 | do i = its,ite |
|---|
| 736 | if(cnvflg(i)) then |
|---|
| 737 | indx = kb(i) |
|---|
| 738 | hkbo(i) = heo(i,indx) |
|---|
| 739 | qkbo(i) = qo(i,indx) |
|---|
| 740 | endif |
|---|
| 741 | enddo |
|---|
| 742 | ! |
|---|
| 743 | do i = its,ite |
|---|
| 744 | flg(i) = cnvflg(i) |
|---|
| 745 | kbcon(i) = kmax |
|---|
| 746 | enddo |
|---|
| 747 | ! |
|---|
| 748 | do k = kts,kbmax |
|---|
| 749 | do i = its,ite |
|---|
| 750 | if(flg(i).and.k.gt.kb(i)) then |
|---|
| 751 | hsbar(i) = heso(i,k) |
|---|
| 752 | if(hkbo(i).gt.hsbar(i)) then |
|---|
| 753 | flg(i) = .false. |
|---|
| 754 | kbcon(i) = k |
|---|
| 755 | endif |
|---|
| 756 | endif |
|---|
| 757 | enddo |
|---|
| 758 | enddo |
|---|
| 759 | do i = its,ite |
|---|
| 760 | if(kbcon(i).eq.kmax) cnvflg(i) = .false. |
|---|
| 761 | enddo |
|---|
| 762 | ! |
|---|
| 763 | totflg = .true. |
|---|
| 764 | do i = its,ite |
|---|
| 765 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 766 | enddo |
|---|
| 767 | if(totflg) return |
|---|
| 768 | ! |
|---|
| 769 | do i = its,ite |
|---|
| 770 | if(cnvflg(i)) then |
|---|
| 771 | ! |
|---|
| 772 | ! determine critical convective inhibition |
|---|
| 773 | ! as a function of vertical velocity at cloud base. |
|---|
| 774 | ! |
|---|
| 775 | pdot(i) = 10.* dot(i,kbcon(i)) |
|---|
| 776 | if(slimsk(i).eq.1.) then |
|---|
| 777 | w1 = w1l |
|---|
| 778 | w2 = w2l |
|---|
| 779 | w3 = w3l |
|---|
| 780 | w4 = w4l |
|---|
| 781 | else |
|---|
| 782 | w1 = w1s |
|---|
| 783 | w2 = w2s |
|---|
| 784 | w3 = w3s |
|---|
| 785 | w4 = w4s |
|---|
| 786 | endif |
|---|
| 787 | if(pdot(i).le.w4) then |
|---|
| 788 | tem = (pdot(i) - w4) / (w3 - w4) |
|---|
| 789 | elseif(pdot(i).ge.-w4) then |
|---|
| 790 | tem = - (pdot(i) + w4) / (w4 - w3) |
|---|
| 791 | else |
|---|
| 792 | tem = 0. |
|---|
| 793 | endif |
|---|
| 794 | tem = max(tem,-1.) |
|---|
| 795 | tem = min(tem,1.) |
|---|
| 796 | tem = 1. - tem |
|---|
| 797 | tem1= .5*(cincrmax-cincrmin) |
|---|
| 798 | cincr = cincrmax - tem * tem1 |
|---|
| 799 | pbcdif(i) = -p(i,kbcon(i)) + p(i,kb(i)) |
|---|
| 800 | if(pbcdif(i).gt.cincr) cnvflg(i) = .false. |
|---|
| 801 | endif |
|---|
| 802 | enddo |
|---|
| 803 | ! |
|---|
| 804 | ! |
|---|
| 805 | totflg = .true. |
|---|
| 806 | do i = its,ite |
|---|
| 807 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 808 | enddo |
|---|
| 809 | if(totflg) return |
|---|
| 810 | ! |
|---|
| 811 | do k = kts,kte1 |
|---|
| 812 | do i = its,ite |
|---|
| 813 | xlamb(i,k) = clam / zi(i,k+1) |
|---|
| 814 | enddo |
|---|
| 815 | enddo |
|---|
| 816 | ! |
|---|
| 817 | ! assume that updraft entrainment rate above cloud base is |
|---|
| 818 | ! same as that at cloud base |
|---|
| 819 | ! |
|---|
| 820 | do k = kts1,kmax1 |
|---|
| 821 | do i = its,ite |
|---|
| 822 | if(cnvflg(i).and.(k.gt.kbcon(i))) then |
|---|
| 823 | xlamb(i,k) = xlamb(i,kbcon(i)) |
|---|
| 824 | endif |
|---|
| 825 | enddo |
|---|
| 826 | enddo |
|---|
| 827 | ! |
|---|
| 828 | ! assume the detrainment rate for the updrafts to be same as |
|---|
| 829 | ! the entrainment rate at cloud base |
|---|
| 830 | ! |
|---|
| 831 | do i = its,ite |
|---|
| 832 | if(cnvflg(i)) then |
|---|
| 833 | xlamud(i) = xlamb(i,kbcon(i)) |
|---|
| 834 | endif |
|---|
| 835 | enddo |
|---|
| 836 | ! |
|---|
| 837 | ! functions rapidly decreasing with height, mimicking a cloud ensemble |
|---|
| 838 | ! (Bechtold et al., 2008) |
|---|
| 839 | ! |
|---|
| 840 | do k = kts1,kmax1 |
|---|
| 841 | do i = its,ite |
|---|
| 842 | if(cnvflg(i).and.(k.gt.kbcon(i))) then |
|---|
| 843 | tem = qeso(i,k)/qeso(i,kbcon(i)) |
|---|
| 844 | fent1(i,k) = tem**2 |
|---|
| 845 | fent2(i,k) = tem**3 |
|---|
| 846 | endif |
|---|
| 847 | enddo |
|---|
| 848 | enddo |
|---|
| 849 | ! |
|---|
| 850 | ! final entrainment rate as the sum of turbulent part and organized entrainment |
|---|
| 851 | ! depending on the environmental relative humidity |
|---|
| 852 | ! (Bechtold et al., 2008) |
|---|
| 853 | ! |
|---|
| 854 | do k = kts1,kmax1 |
|---|
| 855 | do i = its,ite |
|---|
| 856 | if(cnvflg(i).and.(k.ge.kbcon(i))) then |
|---|
| 857 | tem = cxlamu * frh(i,k) * fent2(i,k) |
|---|
| 858 | xlamb(i,k) = xlamb(i,k)*fent1(i,k) + tem |
|---|
| 859 | endif |
|---|
| 860 | enddo |
|---|
| 861 | enddo |
|---|
| 862 | ! |
|---|
| 863 | ! determine updraft mass flux |
|---|
| 864 | ! |
|---|
| 865 | do k = kts,kte |
|---|
| 866 | do i = its,ite |
|---|
| 867 | if(cnvflg(i)) then |
|---|
| 868 | eta(i,k) = 1. |
|---|
| 869 | endif |
|---|
| 870 | enddo |
|---|
| 871 | enddo |
|---|
| 872 | ! |
|---|
| 873 | do k = kbmax,kts1,-1 |
|---|
| 874 | do i = its,ite |
|---|
| 875 | if(cnvflg(i).and.k.lt.kbcon(i).and.k.ge.kb(i)) then |
|---|
| 876 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 877 | ptem = 0.5*(xlamb(i,k)+xlamb(i,k+1))-xlamud(i) |
|---|
| 878 | eta(i,k) = eta(i,k+1) / (1. + ptem * dz) |
|---|
| 879 | endif |
|---|
| 880 | enddo |
|---|
| 881 | enddo |
|---|
| 882 | do k = kts1,kmax1 |
|---|
| 883 | do i = its,ite |
|---|
| 884 | if(cnvflg(i).and.k.gt.kbcon(i)) then |
|---|
| 885 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 886 | ptem = 0.5*(xlamb(i,k)+xlamb(i,k-1))-xlamud(i) |
|---|
| 887 | eta(i,k) = eta(i,k-1) * (1 + ptem * dz) |
|---|
| 888 | endif |
|---|
| 889 | enddo |
|---|
| 890 | enddo |
|---|
| 891 | do i = its,ite |
|---|
| 892 | if(cnvflg(i)) then |
|---|
| 893 | dz = zi(i,3) - zi(i,2) |
|---|
| 894 | ptem = 0.5*(xlamb(i,1)+xlamb(i,2))-xlamud(i) |
|---|
| 895 | eta(i,1) = eta(i,2) / (1. + ptem * dz) |
|---|
| 896 | endif |
|---|
| 897 | enddo |
|---|
| 898 | ! |
|---|
| 899 | ! work up updraft cloud properties |
|---|
| 900 | ! |
|---|
| 901 | do i = its,ite |
|---|
| 902 | if(cnvflg(i)) then |
|---|
| 903 | indx = kb(i) |
|---|
| 904 | hcko(i,indx) = hkbo(i) |
|---|
| 905 | qcko(i,indx) = qkbo(i) |
|---|
| 906 | ucko(i,indx) = uo(i,indx) |
|---|
| 907 | vcko(i,indx) = vo(i,indx) |
|---|
| 908 | pwavo(i) = 0. |
|---|
| 909 | endif |
|---|
| 910 | enddo |
|---|
| 911 | ! |
|---|
| 912 | ! cloud property below cloud base is modified by the entrainment proces |
|---|
| 913 | ! |
|---|
| 914 | do k = kts1,kmax1 |
|---|
| 915 | do i = its,ite |
|---|
| 916 | if(cnvflg(i).and.k.gt.kb(i)) then |
|---|
| 917 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 918 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) * dz |
|---|
| 919 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 920 | factor = 1. + tem - tem1 |
|---|
| 921 | ptem = 0.5 * tem + pgcon |
|---|
| 922 | ptem1= 0.5 * tem - pgcon |
|---|
| 923 | hcko(i,k) = ((1.-tem1)*hcko(i,k-1)+tem*0.5* & |
|---|
| 924 | (heo(i,k)+heo(i,k-1)))/factor |
|---|
| 925 | ucko(i,k) = ((1.-tem1)*ucko(i,k-1)+ptem*uo(i,k) & |
|---|
| 926 | +ptem1*uo(i,k-1))/factor |
|---|
| 927 | vcko(i,k) = ((1.-tem1)*vcko(i,k-1)+ptem*vo(i,k) & |
|---|
| 928 | +ptem1*vo(i,k-1))/factor |
|---|
| 929 | dbyo(i,k) = hcko(i,k) - heso(i,k) |
|---|
| 930 | endif |
|---|
| 931 | enddo |
|---|
| 932 | enddo |
|---|
| 933 | ! |
|---|
| 934 | ! taking account into convection inhibition due to existence of |
|---|
| 935 | ! dry layers below cloud base |
|---|
| 936 | ! |
|---|
| 937 | do i = its,ite |
|---|
| 938 | flg(i) = cnvflg(i) |
|---|
| 939 | kbcon1(i) = kmax |
|---|
| 940 | enddo |
|---|
| 941 | ! |
|---|
| 942 | do k = kts1,kmax |
|---|
| 943 | do i = its,ite |
|---|
| 944 | if(flg(i).and.k.ge.kbcon(i).and.dbyo(i,k).gt.0.) then |
|---|
| 945 | kbcon1(i) = k |
|---|
| 946 | flg(i) = .false. |
|---|
| 947 | endif |
|---|
| 948 | enddo |
|---|
| 949 | enddo |
|---|
| 950 | ! |
|---|
| 951 | do i = its,ite |
|---|
| 952 | if(cnvflg(i)) then |
|---|
| 953 | if(kbcon1(i).eq.kmax) cnvflg(i) = .false. |
|---|
| 954 | endif |
|---|
| 955 | enddo |
|---|
| 956 | ! |
|---|
| 957 | do i =its,ite |
|---|
| 958 | if(cnvflg(i)) then |
|---|
| 959 | tem = p(i,kbcon(i)) - p(i,kbcon1(i)) |
|---|
| 960 | if(tem.gt.dthk) then |
|---|
| 961 | cnvflg(i) = .false. |
|---|
| 962 | endif |
|---|
| 963 | endif |
|---|
| 964 | enddo |
|---|
| 965 | ! |
|---|
| 966 | totflg = .true. |
|---|
| 967 | do i = its,ite |
|---|
| 968 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 969 | enddo |
|---|
| 970 | if(totflg) return |
|---|
| 971 | ! |
|---|
| 972 | ! |
|---|
| 973 | ! determine cloud top |
|---|
| 974 | ! |
|---|
| 975 | ! |
|---|
| 976 | do i = its,ite |
|---|
| 977 | flg(i) = cnvflg(i) |
|---|
| 978 | ktcon(i) = 1 |
|---|
| 979 | enddo |
|---|
| 980 | ! |
|---|
| 981 | ! check inversion |
|---|
| 982 | ! |
|---|
| 983 | do k = kts1,kmax1 |
|---|
| 984 | do i = its,ite |
|---|
| 985 | if(dbyo(i,k).lt.0..and.flg(i).and.k.gt. kbcon1(i)) then |
|---|
| 986 | ktcon(i) = k |
|---|
| 987 | flg(i) = .false. |
|---|
| 988 | endif |
|---|
| 989 | enddo |
|---|
| 990 | enddo |
|---|
| 991 | ! |
|---|
| 992 | ! |
|---|
| 993 | ! check cloud depth |
|---|
| 994 | ! |
|---|
| 995 | do i = its,ite |
|---|
| 996 | if(cnvflg(i).and.(p(i,kbcon(i)) - p(i,ktcon(i))).lt.150.) & |
|---|
| 997 | cnvflg(i) = .false. |
|---|
| 998 | enddo |
|---|
| 999 | ! |
|---|
| 1000 | totflg = .true. |
|---|
| 1001 | do i = its,ite |
|---|
| 1002 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 1003 | enddo |
|---|
| 1004 | if(totflg) return |
|---|
| 1005 | ! |
|---|
| 1006 | ! |
|---|
| 1007 | ! search for downdraft originating level above theta-e minimum |
|---|
| 1008 | ! |
|---|
| 1009 | do i = its,ite |
|---|
| 1010 | if(cnvflg(i)) then |
|---|
| 1011 | hmin(i) = heo(i,kbcon1(i)) |
|---|
| 1012 | lmin(i) = kbmax |
|---|
| 1013 | jmin(i) = kbmax |
|---|
| 1014 | endif |
|---|
| 1015 | enddo |
|---|
| 1016 | ! |
|---|
| 1017 | do k = kts1,kbmax |
|---|
| 1018 | do i = its,ite |
|---|
| 1019 | if(cnvflg(i).and.k.gt.kbcon1(i).and.heo(i,k).lt.hmin(i)) then |
|---|
| 1020 | lmin(i) = k + 1 |
|---|
| 1021 | hmin(i) = heo(i,k) |
|---|
| 1022 | endif |
|---|
| 1023 | enddo |
|---|
| 1024 | enddo |
|---|
| 1025 | ! |
|---|
| 1026 | ! make sure that jmin is within the cloud |
|---|
| 1027 | ! |
|---|
| 1028 | do i = its,ite |
|---|
| 1029 | if(cnvflg(i)) then |
|---|
| 1030 | jmin(i) = min(lmin(i),ktcon(i)-1) |
|---|
| 1031 | jmin(i) = max(jmin(i),kbcon1(i)+1) |
|---|
| 1032 | if(jmin(i).ge.ktcon(i)) cnvflg(i) = .false. |
|---|
| 1033 | endif |
|---|
| 1034 | enddo |
|---|
| 1035 | ! |
|---|
| 1036 | ! specify upper limit of mass flux at cloud base |
|---|
| 1037 | ! |
|---|
| 1038 | do i = its,ite |
|---|
| 1039 | if(cnvflg(i)) then |
|---|
| 1040 | k = kbcon(i) |
|---|
| 1041 | dp = 1000. * del(i,k) |
|---|
| 1042 | xmbmax(i) = dp / (g_ * dt2) |
|---|
| 1043 | endif |
|---|
| 1044 | enddo |
|---|
| 1045 | ! |
|---|
| 1046 | ! |
|---|
| 1047 | ! compute cloud moisture property and precipitation |
|---|
| 1048 | ! |
|---|
| 1049 | do i = its,ite |
|---|
| 1050 | aa1(i) = 0. |
|---|
| 1051 | enddo |
|---|
| 1052 | ! |
|---|
| 1053 | do k = kts1,kmax |
|---|
| 1054 | do i = its,ite |
|---|
| 1055 | if(cnvflg(i).and.k.gt.kb(i).and.k.lt.ktcon(i)) then |
|---|
| 1056 | dz = .5 * (zl(i,k+1) - zl(i,k-1)) |
|---|
| 1057 | dz1 = (zi(i,k+1) - zi(i,k)) |
|---|
| 1058 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1059 | qrch = qeso(i,k) & |
|---|
| 1060 | + gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 1061 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) * dz1 |
|---|
| 1062 | tem1 = 0.5 * xlamud(i) * dz1 |
|---|
| 1063 | factor = 1. + tem - tem1 |
|---|
| 1064 | qcko(i,k) = ((1.-tem1)*qcko(i,k-1)+tem*0.5* & |
|---|
| 1065 | (qo(i,k)+qo(i,k-1)))/factor |
|---|
| 1066 | qcirs(i,k) = eta(i,k) * qcko(i,k) - eta(i,k) * qrch |
|---|
| 1067 | ! |
|---|
| 1068 | ! check if there is excess moisture to release latent heat |
|---|
| 1069 | ! |
|---|
| 1070 | if(qcirs(i,k).gt.0. .and. k.ge.kbcon(i)) then |
|---|
| 1071 | etah = .5 * (eta(i,k) + eta(i,k-1)) |
|---|
| 1072 | if(ncloud.gt.0..and.k.gt.jmin(i)) then |
|---|
| 1073 | dp = 1000. * del(i,k) |
|---|
| 1074 | qlk = qcirs(i,k) / (eta(i,k) + etah * (c0 + c1) * dz1) |
|---|
| 1075 | dellal(i,k) = etah * c1 * dz1 * qlk * g_ / dp |
|---|
| 1076 | else |
|---|
| 1077 | qlk = qcirs(i,k) / (eta(i,k) + etah * c0 * dz1) |
|---|
| 1078 | endif |
|---|
| 1079 | aa1(i) = aa1(i) - dz1 * g_ * qlk |
|---|
| 1080 | qc = qlk + qrch |
|---|
| 1081 | pwo(i,k) = etah * c0 * dz1 * qlk |
|---|
| 1082 | qcko(i,k) = qc |
|---|
| 1083 | pwavo(i) = pwavo(i) + pwo(i,k) |
|---|
| 1084 | endif |
|---|
| 1085 | endif |
|---|
| 1086 | enddo |
|---|
| 1087 | enddo |
|---|
| 1088 | ! |
|---|
| 1089 | ! calculate cloud work function at t+dt |
|---|
| 1090 | ! |
|---|
| 1091 | do k = kts1,kmax |
|---|
| 1092 | do i = its,ite |
|---|
| 1093 | if(cnvflg(i).and.k.ge.kbcon(i).and.k.lt.ktcon(i)) then |
|---|
| 1094 | dz1 = zl(i,k+1) - zl(i,k) |
|---|
| 1095 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1096 | rfact = 1. + fv_ * cp_ * gamma* to(i,k) / hvap_ |
|---|
| 1097 | aa1(i) = aa1(i) +dz1 * (g_ / (cp_ * to(i,k))) & |
|---|
| 1098 | * dbyo(i,k) / (1. + gamma)* rfact |
|---|
| 1099 | aa1(i) = aa1(i)+dz1 * g_ * fv_ * & |
|---|
| 1100 | max(0.,(qeso(i,k) - qo(i,k))) |
|---|
| 1101 | endif |
|---|
| 1102 | enddo |
|---|
| 1103 | enddo |
|---|
| 1104 | ! |
|---|
| 1105 | do i = its,ite |
|---|
| 1106 | if(cnvflg(i).and.aa1(i).le.0.) cnvflg(i) = .false. |
|---|
| 1107 | enddo |
|---|
| 1108 | ! |
|---|
| 1109 | totflg = .true. |
|---|
| 1110 | do i=its,ite |
|---|
| 1111 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 1112 | enddo |
|---|
| 1113 | if(totflg) return |
|---|
| 1114 | ! |
|---|
| 1115 | ! estimate the convective overshooting as the level |
|---|
| 1116 | ! where the [aafac * cloud work function] becomes zero, |
|---|
| 1117 | ! which is the final cloud top |
|---|
| 1118 | ! |
|---|
| 1119 | do i = its,ite |
|---|
| 1120 | if (cnvflg(i)) then |
|---|
| 1121 | aa2(i) = aafac * aa1(i) |
|---|
| 1122 | endif |
|---|
| 1123 | enddo |
|---|
| 1124 | ! |
|---|
| 1125 | do i = its,ite |
|---|
| 1126 | flg(i) = cnvflg(i) |
|---|
| 1127 | ktcon1(i) = kmax1 |
|---|
| 1128 | enddo |
|---|
| 1129 | ! |
|---|
| 1130 | do k = kts1, kmax |
|---|
| 1131 | do i = its, ite |
|---|
| 1132 | if (flg(i)) then |
|---|
| 1133 | if(k.ge.ktcon(i).and.k.lt.kmax) then |
|---|
| 1134 | dz1 = zl(i,k+1) - zl(i,k) |
|---|
| 1135 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1136 | rfact = 1. + fv_ * cp_ * gamma* to(i,k) / hvap_ |
|---|
| 1137 | aa2(i) = aa2(i) +dz1 * (g_ / (cp_ * to(i,k))) & |
|---|
| 1138 | * dbyo(i,k) / (1. + gamma)* rfact |
|---|
| 1139 | if(aa2(i).lt.0.) then |
|---|
| 1140 | ktcon1(i) = k |
|---|
| 1141 | flg(i) = .false. |
|---|
| 1142 | endif |
|---|
| 1143 | endif |
|---|
| 1144 | endif |
|---|
| 1145 | enddo |
|---|
| 1146 | enddo |
|---|
| 1147 | ! |
|---|
| 1148 | ! compute cloud moisture property, detraining cloud water |
|---|
| 1149 | ! and precipitation in overshooting layers |
|---|
| 1150 | ! |
|---|
| 1151 | do k = kts1,kmax |
|---|
| 1152 | do i = its,ite |
|---|
| 1153 | if (cnvflg(i)) then |
|---|
| 1154 | if(k.ge.ktcon(i).and.k.lt.ktcon1(i)) then |
|---|
| 1155 | dz = (zi(i,k+1) - zi(i,k)) |
|---|
| 1156 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1157 | qrch = qeso(i,k)+ gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 1158 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) * dz |
|---|
| 1159 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 1160 | factor = 1. + tem - tem1 |
|---|
| 1161 | qcko(i,k) = ((1.-tem1)*qcko(i,k-1)+tem*0.5* & |
|---|
| 1162 | (qo(i,k)+qo(i,k-1)))/factor |
|---|
| 1163 | qcirs(i,k) = eta(i,k) * qcko(i,k) - eta(i,k) * qrch |
|---|
| 1164 | ! |
|---|
| 1165 | ! check if there is excess moisture to release latent heat |
|---|
| 1166 | ! |
|---|
| 1167 | if(qcirs(i,k).gt.0.) then |
|---|
| 1168 | etah = .5 * (eta(i,k) + eta(i,k-1)) |
|---|
| 1169 | if(ncloud.gt.0.) then |
|---|
| 1170 | dp = 1000. * del(i,k) |
|---|
| 1171 | qlk = qcirs(i,k) / (eta(i,k) + etah * (c0 + c1) * dz) |
|---|
| 1172 | dellal(i,k) = etah * c1 * dz * qlk * g_ / dp |
|---|
| 1173 | else |
|---|
| 1174 | qlk = qcirs(i,k) / (eta(i,k) + etah * c0 * dz) |
|---|
| 1175 | endif |
|---|
| 1176 | qc = qlk + qrch |
|---|
| 1177 | pwo(i,k) = etah * c0 * dz * qlk |
|---|
| 1178 | qcko(i,k) = qc |
|---|
| 1179 | pwavo(i) = pwavo(i) + pwo(i,k) |
|---|
| 1180 | endif |
|---|
| 1181 | endif |
|---|
| 1182 | endif |
|---|
| 1183 | enddo |
|---|
| 1184 | enddo |
|---|
| 1185 | ! |
|---|
| 1186 | ! exchange ktcon with ktcon1 |
|---|
| 1187 | ! |
|---|
| 1188 | do i = its,ite |
|---|
| 1189 | if(cnvflg(i)) then |
|---|
| 1190 | kk = ktcon(i) |
|---|
| 1191 | ktcon(i) = ktcon1(i) |
|---|
| 1192 | ktcon1(i) = kk |
|---|
| 1193 | endif |
|---|
| 1194 | enddo |
|---|
| 1195 | ! |
|---|
| 1196 | ! this section is ready for cloud water |
|---|
| 1197 | ! |
|---|
| 1198 | if (ncloud.gt.0) then |
|---|
| 1199 | ! |
|---|
| 1200 | ! compute liquid and vapor separation at cloud top |
|---|
| 1201 | ! |
|---|
| 1202 | do i = its,ite |
|---|
| 1203 | if(cnvflg(i)) then |
|---|
| 1204 | k = ktcon(i)-1 |
|---|
| 1205 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1206 | qrch = qeso(i,k) & |
|---|
| 1207 | + gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 1208 | dq = qcko(i,k) - qrch |
|---|
| 1209 | ! |
|---|
| 1210 | ! check if there is excess moisture to release latent heat |
|---|
| 1211 | ! |
|---|
| 1212 | if(dq.gt.0.) then |
|---|
| 1213 | qlko_ktcon(i) = dq |
|---|
| 1214 | qcko(i,k) = qrch |
|---|
| 1215 | endif |
|---|
| 1216 | endif |
|---|
| 1217 | enddo |
|---|
| 1218 | endif |
|---|
| 1219 | ! |
|---|
| 1220 | ! ..... downdraft calculations ..... |
|---|
| 1221 | ! |
|---|
| 1222 | ! determine downdraft strength in terms of wind shear |
|---|
| 1223 | ! |
|---|
| 1224 | do i = its,ite |
|---|
| 1225 | if(cnvflg(i)) then |
|---|
| 1226 | vshear(i) = 0. |
|---|
| 1227 | endif |
|---|
| 1228 | enddo |
|---|
| 1229 | ! |
|---|
| 1230 | do k = kts1,kmax |
|---|
| 1231 | do i = its,ite |
|---|
| 1232 | if(k.gt.kb(i).and.k.le.ktcon(i).and.cnvflg(i)) then |
|---|
| 1233 | shear= sqrt((uo(i,k)-uo(i,k-1)) ** 2 & |
|---|
| 1234 | + (vo(i,k)-vo(i,k-1)) ** 2) |
|---|
| 1235 | vshear(i) = vshear(i) + shear |
|---|
| 1236 | endif |
|---|
| 1237 | enddo |
|---|
| 1238 | enddo |
|---|
| 1239 | ! |
|---|
| 1240 | do i = its,ite |
|---|
| 1241 | if(cnvflg(i)) then |
|---|
| 1242 | vshear(i) = 1.e3 * vshear(i) / (zi(i,ktcon(i)+1)-zi(i,kb(i)+1)) |
|---|
| 1243 | e1 = 1.591-.639*vshear(i) & |
|---|
| 1244 | +.0953*(vshear(i)**2)-.00496*(vshear(i)**3) |
|---|
| 1245 | edt(i) = 1.-e1 |
|---|
| 1246 | edt(i) = min(edt(i),.9) |
|---|
| 1247 | edt(i) = max(edt(i),.0) |
|---|
| 1248 | edto(i) = edt(i) |
|---|
| 1249 | edtx(i) = edt(i) |
|---|
| 1250 | endif |
|---|
| 1251 | enddo |
|---|
| 1252 | ! |
|---|
| 1253 | ! determine detrainment rate between 1 and kbdtr |
|---|
| 1254 | ! |
|---|
| 1255 | do i = its,ite |
|---|
| 1256 | if(cnvflg(i)) then |
|---|
| 1257 | sumx(i) = 0. |
|---|
| 1258 | endif |
|---|
| 1259 | enddo |
|---|
| 1260 | ! |
|---|
| 1261 | do k = kts,kmax1 |
|---|
| 1262 | do i = its,ite |
|---|
| 1263 | if(cnvflg(i).and.k.ge.1.and.k.lt.kbcon(i)) then |
|---|
| 1264 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 1265 | sumx(i) = sumx(i) + dz |
|---|
| 1266 | endif |
|---|
| 1267 | enddo |
|---|
| 1268 | enddo |
|---|
| 1269 | ! |
|---|
| 1270 | do i = its,ite |
|---|
| 1271 | kbdtr(i) = kbcon(i) |
|---|
| 1272 | beta = betas |
|---|
| 1273 | if(slimsk(i).eq.1.) beta = betal |
|---|
| 1274 | if(cnvflg(i)) then |
|---|
| 1275 | kbdtr(i) = kbcon(i) |
|---|
| 1276 | kbdtr(i) = max(kbdtr(i),1) |
|---|
| 1277 | dz =(sumx(i)+zi(i,2))/float(kbcon(i)) |
|---|
| 1278 | tem = 1./float(kbcon(i)) |
|---|
| 1279 | xlamd(i) = (1.-beta**tem)/dz |
|---|
| 1280 | endif |
|---|
| 1281 | enddo |
|---|
| 1282 | ! |
|---|
| 1283 | ! determine downdraft mass flux |
|---|
| 1284 | ! |
|---|
| 1285 | do k = kts,kmax |
|---|
| 1286 | do i = its,ite |
|---|
| 1287 | if(cnvflg(i)) then |
|---|
| 1288 | etad(i,k) = 1. |
|---|
| 1289 | endif |
|---|
| 1290 | qrcdo(i,k) = 0. |
|---|
| 1291 | qrcd(i,k) = 0. |
|---|
| 1292 | enddo |
|---|
| 1293 | enddo |
|---|
| 1294 | ! |
|---|
| 1295 | do k = kmax1,kts,-1 |
|---|
| 1296 | do i = its,ite |
|---|
| 1297 | if(cnvflg(i)) then |
|---|
| 1298 | if(k.lt.jmin(i).and.k.ge.kbcon(i))then |
|---|
| 1299 | dz = (zi(i,k+2) - zi(i,k+1)) |
|---|
| 1300 | ptem = xlamdd-xlamde |
|---|
| 1301 | etad(i,k) = etad(i,k+1) * (1.-ptem * dz) |
|---|
| 1302 | elseif(k.lt.kbcon(i))then |
|---|
| 1303 | dz = (zi(i,k+2) - zi(i,k+1)) |
|---|
| 1304 | ptem = xlamd(i)+xlamdd-xlamde |
|---|
| 1305 | etad(i,k) = etad(i,k+1) * (1.-ptem * dz) |
|---|
| 1306 | endif |
|---|
| 1307 | endif |
|---|
| 1308 | enddo |
|---|
| 1309 | enddo |
|---|
| 1310 | ! |
|---|
| 1311 | ! |
|---|
| 1312 | ! downdraft moisture properties |
|---|
| 1313 | ! |
|---|
| 1314 | do i = its,ite |
|---|
| 1315 | if(cnvflg(i)) then |
|---|
| 1316 | pwevo(i) = 0. |
|---|
| 1317 | endif |
|---|
| 1318 | enddo |
|---|
| 1319 | ! |
|---|
| 1320 | do i = its,ite |
|---|
| 1321 | if(cnvflg(i)) then |
|---|
| 1322 | jmn = jmin(i) |
|---|
| 1323 | hcdo(i,jmn) = heo(i,jmn) |
|---|
| 1324 | qcdo(i,jmn) = qo(i,jmn) |
|---|
| 1325 | qrcdo(i,jmn) = qeso(i,jmn) |
|---|
| 1326 | ucdo(i,jmn) = uo(i,jmn) |
|---|
| 1327 | vcdo(i,jmn) = vo(i,jmn) |
|---|
| 1328 | endif |
|---|
| 1329 | enddo |
|---|
| 1330 | ! |
|---|
| 1331 | do k = kmax1,kts,-1 |
|---|
| 1332 | do i = its,ite |
|---|
| 1333 | if (cnvflg(i) .and. k.lt.jmin(i)) then |
|---|
| 1334 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 1335 | if(k.ge.kbcon(i)) then |
|---|
| 1336 | tem = xlamde * dz |
|---|
| 1337 | tem1 = 0.5 * xlamdd * dz |
|---|
| 1338 | else |
|---|
| 1339 | tem = xlamde * dz |
|---|
| 1340 | tem1 = 0.5 * (xlamd(i)+xlamdd) * dz |
|---|
| 1341 | endif |
|---|
| 1342 | factor = 1. + tem - tem1 |
|---|
| 1343 | ptem = 0.5 * tem - pgcon |
|---|
| 1344 | ptem1= 0.5 * tem + pgcon |
|---|
| 1345 | hcdo(i,k) = ((1.-tem1)*hcdo(i,k+1)+tem*0.5* & |
|---|
| 1346 | (heo(i,k)+heo(i,k+1)))/factor |
|---|
| 1347 | ucdo(i,k) = ((1.-tem1)*ucdo(i,k+1)+ptem*uo(i,k+1) & |
|---|
| 1348 | +ptem1*uo(i,k))/factor |
|---|
| 1349 | vcdo(i,k) = ((1.-tem1)*vcdo(i,k+1)+ptem*vo(i,k+1) & |
|---|
| 1350 | +ptem1*vo(i,k))/factor |
|---|
| 1351 | dbyo(i,k) = hcdo(i,k) - heso(i,k) |
|---|
| 1352 | endif |
|---|
| 1353 | enddo |
|---|
| 1354 | enddo |
|---|
| 1355 | ! |
|---|
| 1356 | do k = kmax1,kts,-1 |
|---|
| 1357 | do i = its,ite |
|---|
| 1358 | if(cnvflg(i).and.k.lt.jmin(i)) then |
|---|
| 1359 | dq = qeso(i,k) |
|---|
| 1360 | dt = to(i,k) |
|---|
| 1361 | gamma = el2orc * dq / dt**2 |
|---|
| 1362 | qrcdo(i,k)=dq+(1./hvap_)*(gamma/(1.+gamma))*dbyo(i,k) |
|---|
| 1363 | detad = etad(i,k+1) - etad(i,k) |
|---|
| 1364 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 1365 | if(k.ge.kbcon(i)) then |
|---|
| 1366 | tem = xlamde * dz |
|---|
| 1367 | tem1 = 0.5 * xlamdd * dz |
|---|
| 1368 | else |
|---|
| 1369 | tem = xlamde * dz |
|---|
| 1370 | tem1 = 0.5 * (xlamd(i)+xlamdd) * dz |
|---|
| 1371 | endif |
|---|
| 1372 | factor = 1. + tem - tem1 |
|---|
| 1373 | qcdo(i,k) = ((1.-tem1)*qcdo(i,k+1)+tem*0.5* & |
|---|
| 1374 | (qo(i,k)+qo(i,k+1)))/factor |
|---|
| 1375 | pwdo(i,k) = etad(i,k+1) * qcdo(i,k) -etad(i,k+1) * qrcdo(i,k) |
|---|
| 1376 | qcdo(i,k) = qrcdo(i,k) |
|---|
| 1377 | pwevo(i) = pwevo(i) + pwdo(i,k) |
|---|
| 1378 | endif |
|---|
| 1379 | enddo |
|---|
| 1380 | enddo |
|---|
| 1381 | ! |
|---|
| 1382 | ! final downdraft strength dependent on precip |
|---|
| 1383 | ! efficiency (edt), normalized condensate (pwav), and |
|---|
| 1384 | ! evaporate (pwev) |
|---|
| 1385 | ! |
|---|
| 1386 | do i = its,ite |
|---|
| 1387 | edtmax = edtmaxl |
|---|
| 1388 | if(slimsk(i).eq.2.) edtmax = edtmaxs |
|---|
| 1389 | if(cnvflg(i)) then |
|---|
| 1390 | if(pwevo(i).lt.0.) then |
|---|
| 1391 | edto(i) = -edto(i) * pwavo(i) / pwevo(i) |
|---|
| 1392 | edto(i) = min(edto(i),edtmax) |
|---|
| 1393 | else |
|---|
| 1394 | edto(i) = 0. |
|---|
| 1395 | endif |
|---|
| 1396 | endif |
|---|
| 1397 | enddo |
|---|
| 1398 | ! |
|---|
| 1399 | ! downdraft cloudwork functions |
|---|
| 1400 | ! |
|---|
| 1401 | do k = kmax1,kts,-1 |
|---|
| 1402 | do i = its,ite |
|---|
| 1403 | if(cnvflg(i).and.k.lt.jmin(i)) then |
|---|
| 1404 | gamma = el2orc * qeso(i,k) / to(i,k)**2 |
|---|
| 1405 | dhh=hcdo(i,k) |
|---|
| 1406 | dt=to(i,k) |
|---|
| 1407 | dg=gamma |
|---|
| 1408 | dh=heso(i,k) |
|---|
| 1409 | dz=-1.*(zl(i,k+1)-zl(i,k)) |
|---|
| 1410 | aa1(i)=aa1(i)+edto(i)*dz*(g_/(cp_*dt))*((dhh-dh)/(1.+dg)) & |
|---|
| 1411 | *(1.+fv_*cp_*dg*dt/hvap_) |
|---|
| 1412 | aa1(i)=aa1(i)+edto(i)*dz*g_*fv_*max(0.,(qeso(i,k)-qo(i,k))) |
|---|
| 1413 | endif |
|---|
| 1414 | enddo |
|---|
| 1415 | enddo |
|---|
| 1416 | ! |
|---|
| 1417 | do i = its,ite |
|---|
| 1418 | if(cnvflg(i).and.aa1(i).le.0.) cnvflg(i) = .false. |
|---|
| 1419 | enddo |
|---|
| 1420 | ! |
|---|
| 1421 | totflg = .true. |
|---|
| 1422 | do i=its,ite |
|---|
| 1423 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 1424 | enddo |
|---|
| 1425 | if(totflg) return |
|---|
| 1426 | ! |
|---|
| 1427 | ! what would the change be, that a cloud with unit mass |
|---|
| 1428 | ! will do to the environment? |
|---|
| 1429 | ! |
|---|
| 1430 | do k = kts,kmax |
|---|
| 1431 | do i = its,ite |
|---|
| 1432 | if(cnvflg(i)) then |
|---|
| 1433 | dellah(i,k) = 0. |
|---|
| 1434 | dellaq(i,k) = 0. |
|---|
| 1435 | dellau(i,k) = 0. |
|---|
| 1436 | dellav(i,k) = 0. |
|---|
| 1437 | endif |
|---|
| 1438 | enddo |
|---|
| 1439 | enddo |
|---|
| 1440 | ! |
|---|
| 1441 | do i = its,ite |
|---|
| 1442 | if(cnvflg(i)) then |
|---|
| 1443 | dp = 1000. * del(i,1) |
|---|
| 1444 | dellah(i,1) = edto(i) * etad(i,1) * (hcdo(i,1) & |
|---|
| 1445 | - heo(i,1)) * g_ / dp |
|---|
| 1446 | dellaq(i,1) = edto(i) * etad(i,1) * (qcdo(i,1) & |
|---|
| 1447 | - qo(i,1)) * g_ / dp |
|---|
| 1448 | dellau(i,1) = edto(i) * etad(i,1) * (ucdo(i,1) & |
|---|
| 1449 | - uo(i,1)) * g_ / dp |
|---|
| 1450 | dellav(i,1) = edto(i) * etad(i,1) * (vcdo(i,1) & |
|---|
| 1451 | - vo(i,1)) * g_ / dp |
|---|
| 1452 | endif |
|---|
| 1453 | enddo |
|---|
| 1454 | ! |
|---|
| 1455 | ! changed due to subsidence and entrainment |
|---|
| 1456 | ! |
|---|
| 1457 | do k = kts1,kmax1 |
|---|
| 1458 | do i = its,ite |
|---|
| 1459 | if(cnvflg(i).and.k.lt.ktcon(i)) then |
|---|
| 1460 | aup = 1. |
|---|
| 1461 | if(k.le.kb(i)) aup = 0. |
|---|
| 1462 | adw = 1. |
|---|
| 1463 | if(k.gt.jmin(i)) adw = 0. |
|---|
| 1464 | dv1= heo(i,k) |
|---|
| 1465 | dv2 = .5 * (heo(i,k) + heo(i,k-1)) |
|---|
| 1466 | dv3= heo(i,k-1) |
|---|
| 1467 | dv1q= qo(i,k) |
|---|
| 1468 | dv2q = .5 * (qo(i,k) + qo(i,k-1)) |
|---|
| 1469 | dv3q= qo(i,k-1) |
|---|
| 1470 | dv1u = uo(i,k) |
|---|
| 1471 | dv2u = .5 * (uo(i,k) + uo(i,k-1)) |
|---|
| 1472 | dv3u = uo(i,k-1) |
|---|
| 1473 | dv1v = vo(i,k) |
|---|
| 1474 | dv2v = .5 * (vo(i,k) + vo(i,k-1)) |
|---|
| 1475 | dv3v = vo(i,k-1) |
|---|
| 1476 | dp = 1000. * del(i,k) |
|---|
| 1477 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 1478 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) |
|---|
| 1479 | tem1 = xlamud(i) |
|---|
| 1480 | if(k.le.kbcon(i)) then |
|---|
| 1481 | ptem = xlamde |
|---|
| 1482 | ptem1 = xlamd(i)+xlamdd |
|---|
| 1483 | else |
|---|
| 1484 | ptem = xlamde |
|---|
| 1485 | ptem1 = xlamdd |
|---|
| 1486 | endif |
|---|
| 1487 | deta = eta(i,k) - eta(i,k-1) |
|---|
| 1488 | detad = etad(i,k) - etad(i,k-1) |
|---|
| 1489 | dellah(i,k) = dellah(i,k) + & |
|---|
| 1490 | ((aup * eta(i,k) - adw * edto(i) * etad(i,k)) * dv1 & |
|---|
| 1491 | - (aup * eta(i,k-1) - adw * edto(i) * etad(i,k-1))* dv3 & |
|---|
| 1492 | - (aup*tem*eta(i,k-1)+adw*edto(i)*ptem*etad(i,k))*dv2*dz & |
|---|
| 1493 | + aup*tem1*eta(i,k-1)*.5*(hcko(i,k)+hcko(i,k-1))*dz & |
|---|
| 1494 | + adw*edto(i)*ptem1*etad(i,k)*.5*(hcdo(i,k)+hcdo(i,k-1))*dz) *g_/dp |
|---|
| 1495 | dellaq(i,k) = dellaq(i,k) + & |
|---|
| 1496 | ((aup * eta(i,k) - adw * edto(i) * etad(i,k)) * dv1q & |
|---|
| 1497 | - (aup * eta(i,k-1) - adw * edto(i) * etad(i,k-1))* dv3q & |
|---|
| 1498 | - (aup*tem*eta(i,k-1)+adw*edto(i)*ptem*etad(i,k))*dv2q*dz & |
|---|
| 1499 | + aup*tem1*eta(i,k-1)*.5*(qcko(i,k)+qcko(i,k-1))*dz & |
|---|
| 1500 | + adw*edto(i)*ptem1*etad(i,k)*.5*(qrcdo(i,k)+qrcdo(i,k-1))*dz) *g_/dp |
|---|
| 1501 | dellau(i,k) = dellau(i,k) + & |
|---|
| 1502 | ((aup * eta(i,k) - adw * edto(i) * etad(i,k)) * dv1u & |
|---|
| 1503 | - (aup * eta(i,k-1) - adw * edto(i) * etad(i,k-1))* dv3u & |
|---|
| 1504 | - (aup*tem*eta(i,k-1)+adw*edto(i)*ptem*etad(i,k))*dv2u*dz & |
|---|
| 1505 | + aup*tem1*eta(i,k-1)*.5*(ucko(i,k)+ucko(i,k-1))*dz & |
|---|
| 1506 | + adw*edto(i)*ptem1*etad(i,k)*.5*(ucdo(i,k)+ucdo(i,k-1))*dz & |
|---|
| 1507 | - pgcon*(aup*eta(i,k-1)-adw*edto(i)*etad(i,k))*(dv1u-dv3u))*g_/dp |
|---|
| 1508 | ! |
|---|
| 1509 | dellav(i,k) = dellav(i,k) + & |
|---|
| 1510 | ((aup * eta(i,k) - adw * edto(i) * etad(i,k)) * dv1v & |
|---|
| 1511 | - (aup * eta(i,k-1) - adw * edto(i) * etad(i,k-1))* dv3v & |
|---|
| 1512 | - (aup*tem*eta(i,k-1)+adw*edto(i)*ptem*etad(i,k))*dv2v*dz & |
|---|
| 1513 | + aup*tem1*eta(i,k-1)*.5*(vcko(i,k)+vcko(i,k-1))*dz & |
|---|
| 1514 | + adw*edto(i)*ptem1*etad(i,k)*.5*(vcdo(i,k)+vcdo(i,k-1))*dz & |
|---|
| 1515 | - pgcon*(aup*eta(i,k-1)-adw*edto(i)*etad(i,k))*(dv1v-dv3v))*g_/dp |
|---|
| 1516 | endif |
|---|
| 1517 | enddo |
|---|
| 1518 | enddo |
|---|
| 1519 | ! |
|---|
| 1520 | ! cloud top |
|---|
| 1521 | ! |
|---|
| 1522 | do i = its,ite |
|---|
| 1523 | if(cnvflg(i)) then |
|---|
| 1524 | indx = ktcon(i) |
|---|
| 1525 | dp = 1000. * del(i,indx) |
|---|
| 1526 | dv1 = heo(i,indx-1) |
|---|
| 1527 | dellah(i,indx) = eta(i,indx-1) * & |
|---|
| 1528 | (hcko(i,indx-1) - dv1) * g_ / dp |
|---|
| 1529 | dvq1 = qo(i,indx-1) |
|---|
| 1530 | dellaq(i,indx) = eta(i,indx-1) * & |
|---|
| 1531 | (qcko(i,indx-1) - dvq1) * g_ / dp |
|---|
| 1532 | dv1u = uo(i,indx-1) |
|---|
| 1533 | dellau(i,indx) = eta(i,indx-1) * & |
|---|
| 1534 | (ucko(i,indx-1) - dv1u) * g_ / dp |
|---|
| 1535 | dv1v = vo(i,indx-1) |
|---|
| 1536 | dellav(i,indx) = eta(i,indx-1) * & |
|---|
| 1537 | (vcko(i,indx-1) - dv1v) * g_ / dp |
|---|
| 1538 | ! |
|---|
| 1539 | ! cloud water |
|---|
| 1540 | ! |
|---|
| 1541 | dellal(i,indx) = eta(i,indx-1) * qlko_ktcon(i) * g_ / dp |
|---|
| 1542 | endif |
|---|
| 1543 | enddo |
|---|
| 1544 | ! |
|---|
| 1545 | ! final changed variable per unit mass flux |
|---|
| 1546 | ! |
|---|
| 1547 | do k = kts,kmax |
|---|
| 1548 | do i = its,ite |
|---|
| 1549 | if(cnvflg(i).and.k.gt.ktcon(i)) then |
|---|
| 1550 | qo(i,k) = q1(i,k) |
|---|
| 1551 | to(i,k) = t1(i,k) |
|---|
| 1552 | endif |
|---|
| 1553 | if(cnvflg(i).and.k.le.ktcon(i)) then |
|---|
| 1554 | qo(i,k) = dellaq(i,k) * mbdt + q1(i,k) |
|---|
| 1555 | dellat = (dellah(i,k) - hvap_ * dellaq(i,k)) / cp_ |
|---|
| 1556 | to(i,k) = dellat * mbdt + t1(i,k) |
|---|
| 1557 | qo(i,k) = max(qo(i,k),1.0e-10) |
|---|
| 1558 | endif |
|---|
| 1559 | enddo |
|---|
| 1560 | enddo |
|---|
| 1561 | ! |
|---|
| 1562 | !------------------------------------------------------------------------------ |
|---|
| 1563 | ! |
|---|
| 1564 | ! the above changed environment is now used to calulate the |
|---|
| 1565 | ! effect the arbitrary cloud (with unit mass flux) |
|---|
| 1566 | ! which then is used to calculate the real mass flux, |
|---|
| 1567 | ! necessary to keep this change in balance with the large-scale |
|---|
| 1568 | ! destabilization. |
|---|
| 1569 | ! |
|---|
| 1570 | ! environmental conditions again |
|---|
| 1571 | ! |
|---|
| 1572 | !------------------------------------------------------------------------------ |
|---|
| 1573 | ! |
|---|
| 1574 | do k = kts,kmax |
|---|
| 1575 | do i = its,ite |
|---|
| 1576 | if(cnvflg(i)) then |
|---|
| 1577 | qeso(i,k)=0.01* fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 1578 | qeso(i,k) = eps * qeso(i,k) / (p(i,k) + (eps-1.) * qeso(i,k)) |
|---|
| 1579 | qeso(i,k) = max(qeso(i,k),qmin_) |
|---|
| 1580 | tvo(i,k) = to(i,k) + fv_ * to(i,k) * max(qo(i,k),qmin_) |
|---|
| 1581 | endif |
|---|
| 1582 | enddo |
|---|
| 1583 | enddo |
|---|
| 1584 | ! |
|---|
| 1585 | do i = its,ite |
|---|
| 1586 | if(cnvflg(i)) then |
|---|
| 1587 | xaa0(i) = 0. |
|---|
| 1588 | xpwav(i) = 0. |
|---|
| 1589 | endif |
|---|
| 1590 | enddo |
|---|
| 1591 | ! |
|---|
| 1592 | ! moist static energy |
|---|
| 1593 | ! |
|---|
| 1594 | do k = kts,kmax1 |
|---|
| 1595 | do i = its,ite |
|---|
| 1596 | if(cnvflg(i)) then |
|---|
| 1597 | dz = .5 * (zl(i,k+1) - zl(i,k)) |
|---|
| 1598 | dp = .5 * (p(i,k+1) - p(i,k)) |
|---|
| 1599 | es =0.01*fpvs(to(i,k+1),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 1600 | pprime = p(i,k+1) + (eps-1.) * es |
|---|
| 1601 | qs = eps * es / pprime |
|---|
| 1602 | dqsdp = - qs / pprime |
|---|
| 1603 | desdt = es * (fact1 / to(i,k+1) + fact2 / (to(i,k+1)**2)) |
|---|
| 1604 | dqsdt = qs * p(i,k+1) * desdt / (es * pprime) |
|---|
| 1605 | gamma = el2orc * qeso(i,k+1) / (to(i,k+1)**2) |
|---|
| 1606 | dt = (g_ * dz + hvap_ * dqsdp * dp) / (cp_ * (1. + gamma)) |
|---|
| 1607 | dq = dqsdt * dt + dqsdp * dp |
|---|
| 1608 | to(i,k) = to(i,k+1) + dt |
|---|
| 1609 | qo(i,k) = qo(i,k+1) + dq |
|---|
| 1610 | po = .5 * (p(i,k) + p(i,k+1)) |
|---|
| 1611 | qeso(i,k) =0.01* fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 1612 | qeso(i,k) = eps * qeso(i,k) / (po + (eps-1.) * qeso(i,k)) |
|---|
| 1613 | qeso(i,k) = max(qeso(i,k),qmin_) |
|---|
| 1614 | qo(i,k) = max(qo(i,k), 1.0e-10) |
|---|
| 1615 | heo(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 1616 | cp_ * to(i,k) + hvap_ * qo(i,k) |
|---|
| 1617 | heso(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 1618 | cp_ * to(i,k) + hvap_ * qeso(i,k) |
|---|
| 1619 | endif |
|---|
| 1620 | enddo |
|---|
| 1621 | enddo |
|---|
| 1622 | ! |
|---|
| 1623 | k = kmax |
|---|
| 1624 | do i = its,ite |
|---|
| 1625 | if(cnvflg(i)) then |
|---|
| 1626 | heo(i,k) = g_ * zl(i,k) + cp_ * to(i,k) + hvap_ * qo(i,k) |
|---|
| 1627 | heso(i,k) = g_ * zl(i,k) + cp_ * to(i,k) + hvap_ * qeso(i,k) |
|---|
| 1628 | endif |
|---|
| 1629 | enddo |
|---|
| 1630 | ! |
|---|
| 1631 | do i = its,ite |
|---|
| 1632 | if(cnvflg(i)) then |
|---|
| 1633 | xaa0(i) = 0. |
|---|
| 1634 | xpwav(i) = 0. |
|---|
| 1635 | indx = kb(i) |
|---|
| 1636 | xhkb(i) = heo(i,indx) |
|---|
| 1637 | xqkb(i) = qo(i,indx) |
|---|
| 1638 | hcko(i,indx) = xhkb(i) |
|---|
| 1639 | qcko(i,indx) = xqkb(i) |
|---|
| 1640 | endif |
|---|
| 1641 | enddo |
|---|
| 1642 | ! |
|---|
| 1643 | ! ..... static control ..... |
|---|
| 1644 | ! |
|---|
| 1645 | ! moisture and cloud work functions |
|---|
| 1646 | ! |
|---|
| 1647 | do k = kts1,kmax1 |
|---|
| 1648 | do i = its,ite |
|---|
| 1649 | if(cnvflg(i).and.k.gt.kb(i).and.k.le.ktcon(i)) then |
|---|
| 1650 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 1651 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) * dz |
|---|
| 1652 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 1653 | factor = 1. + tem - tem1 |
|---|
| 1654 | hcko(i,k) = ((1.-tem1)*hcko(i,k-1)+tem*0.5* & |
|---|
| 1655 | (heo(i,k)+heo(i,k-1)))/factor |
|---|
| 1656 | endif |
|---|
| 1657 | enddo |
|---|
| 1658 | enddo |
|---|
| 1659 | ! |
|---|
| 1660 | do k = kts1,kmax1 |
|---|
| 1661 | do i = its,ite |
|---|
| 1662 | if(cnvflg(i).and.k.gt.kb(i).and.k.lt.ktcon(i)) then |
|---|
| 1663 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 1664 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1665 | xdby = hcko(i,k) - heso(i,k) |
|---|
| 1666 | xqrch = qeso(i,k) & |
|---|
| 1667 | + gamma * xdby / (hvap_ * (1. + gamma)) |
|---|
| 1668 | tem = 0.5 * (xlamb(i,k)+xlamb(i,k-1)) * dz |
|---|
| 1669 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 1670 | factor = 1. + tem - tem1 |
|---|
| 1671 | qcko(i,k) = ((1.-tem1)*qcko(i,k-1)+tem*0.5*(qo(i,k)+qo(i,k-1)))/factor |
|---|
| 1672 | dq = eta(i,k) * qcko(i,k) - eta(i,k) * xqrch |
|---|
| 1673 | if(k.ge.kbcon(i).and.dq.gt.0.) then |
|---|
| 1674 | etah = .5 * (eta(i,k) + eta(i,k-1)) |
|---|
| 1675 | if(ncloud.gt.0..and.k.gt.jmin(i)) then |
|---|
| 1676 | qlk = dq / (eta(i,k) + etah * (c0 + c1) * dz) |
|---|
| 1677 | else |
|---|
| 1678 | qlk = dq / (eta(i,k) + etah * c0 * dz) |
|---|
| 1679 | endif |
|---|
| 1680 | if(k.lt.ktcon1(i)) then |
|---|
| 1681 | xaa0(i) = xaa0(i) - dz * g_ * qlk |
|---|
| 1682 | endif |
|---|
| 1683 | qcko(i,k) = qlk + xqrch |
|---|
| 1684 | xpw = etah * c0 * dz * qlk |
|---|
| 1685 | xpwav(i) = xpwav(i) + xpw |
|---|
| 1686 | endif |
|---|
| 1687 | endif |
|---|
| 1688 | if(cnvflg(i).and.k.ge.kbcon(i).and.k.lt.ktcon1(i)) then |
|---|
| 1689 | dz1 = zl(i,k+1) - zl(i,k) |
|---|
| 1690 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 1691 | rfact = 1. + fv_ * cp_ * gamma & |
|---|
| 1692 | * to(i,k) / hvap_ |
|---|
| 1693 | xdby = hcko(i,k) - heso(i,k) |
|---|
| 1694 | xaa0(i) = xaa0(i) & |
|---|
| 1695 | + dz1 * (g_ / (cp_ * to(i,k))) & |
|---|
| 1696 | * xdby / (1. + gamma) & |
|---|
| 1697 | * rfact |
|---|
| 1698 | xaa0(i)=xaa0(i)+ & |
|---|
| 1699 | dz1 * g_ * fv_ * & |
|---|
| 1700 | max(0.,(qeso(i,k) - qo(i,k))) |
|---|
| 1701 | endif |
|---|
| 1702 | enddo |
|---|
| 1703 | enddo |
|---|
| 1704 | ! |
|---|
| 1705 | ! ..... downdraft calculations ..... |
|---|
| 1706 | ! |
|---|
| 1707 | ! |
|---|
| 1708 | ! downdraft moisture properties |
|---|
| 1709 | ! |
|---|
| 1710 | do i = its,ite |
|---|
| 1711 | xpwev(i) = 0. |
|---|
| 1712 | enddo |
|---|
| 1713 | do i = its,ite |
|---|
| 1714 | if(cnvflg(i)) then |
|---|
| 1715 | jmn = jmin(i) |
|---|
| 1716 | xhcd(i,jmn) = heo(i,jmn) |
|---|
| 1717 | xqcd(i,jmn) = qo(i,jmn) |
|---|
| 1718 | qrcd(i,jmn) = qeso(i,jmn) |
|---|
| 1719 | endif |
|---|
| 1720 | enddo |
|---|
| 1721 | ! |
|---|
| 1722 | do k = kmax1,kts, -1 |
|---|
| 1723 | do i = its,ite |
|---|
| 1724 | if(cnvflg(i).and.k.lt.jmin(i)) then |
|---|
| 1725 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 1726 | if(k.ge.kbcon(i)) then |
|---|
| 1727 | tem = xlamde * dz |
|---|
| 1728 | tem1 = 0.5 * xlamdd * dz |
|---|
| 1729 | else |
|---|
| 1730 | tem = xlamde * dz |
|---|
| 1731 | tem1 = 0.5 * (xlamd(i)+xlamdd) * dz |
|---|
| 1732 | endif |
|---|
| 1733 | factor = 1. + tem - tem1 |
|---|
| 1734 | xhcd(i,k) = ((1.-tem1)*xhcd(i,k+1)+tem*0.5* & |
|---|
| 1735 | (heo(i,k)+heo(i,k+1)))/factor |
|---|
| 1736 | endif |
|---|
| 1737 | enddo |
|---|
| 1738 | enddo |
|---|
| 1739 | ! |
|---|
| 1740 | do k = kmax1,kts, -1 |
|---|
| 1741 | do i = its,ite |
|---|
| 1742 | if(cnvflg(i).and.k.lt.jmin(i)) then |
|---|
| 1743 | dq = qeso(i,k) |
|---|
| 1744 | dt = to(i,k) |
|---|
| 1745 | gamma = el2orc * dq / dt**2 |
|---|
| 1746 | dh = xhcd(i,k) - heso(i,k) |
|---|
| 1747 | qrcd(i,k)=dq+(1./hvap_)*(gamma/(1.+gamma))*dh |
|---|
| 1748 | dz = zi(i,k+2) - zi(i,k+1) |
|---|
| 1749 | if(k.ge.kbcon(i)) then |
|---|
| 1750 | tem = xlamde * dz |
|---|
| 1751 | tem1 = 0.5 * xlamdd * dz |
|---|
| 1752 | else |
|---|
| 1753 | tem = xlamde * dz |
|---|
| 1754 | tem1 = 0.5 * (xlamd(i)+xlamdd) * dz |
|---|
| 1755 | endif |
|---|
| 1756 | factor = 1. + tem - tem1 |
|---|
| 1757 | xqcd(i,k) = ((1.-tem1)*xqcd(i,k+1)+tem*0.5* & |
|---|
| 1758 | (qo(i,k)+qo(i,k+1)))/factor |
|---|
| 1759 | xpwd = etad(i,k+1) * (xqcd(i,k) - qrcd(i,k)) |
|---|
| 1760 | xqcd(i,k)= qrcd(i,k) |
|---|
| 1761 | xpwev(i) = xpwev(i) + xpwd |
|---|
| 1762 | endif |
|---|
| 1763 | enddo |
|---|
| 1764 | enddo |
|---|
| 1765 | ! |
|---|
| 1766 | do i = its,ite |
|---|
| 1767 | edtmax = edtmaxl |
|---|
| 1768 | if(slimsk(i).eq.2.) edtmax = edtmaxs |
|---|
| 1769 | if(cnvflg(i)) then |
|---|
| 1770 | if(xpwev(i).ge.0.) then |
|---|
| 1771 | edtx(i) = 0. |
|---|
| 1772 | else |
|---|
| 1773 | edtx(i) = -edtx(i) * xpwav(i) / xpwev(i) |
|---|
| 1774 | edtx(i) = min(edtx(i),edtmax) |
|---|
| 1775 | endif |
|---|
| 1776 | endif |
|---|
| 1777 | enddo |
|---|
| 1778 | ! |
|---|
| 1779 | ! downdraft cloudwork functions |
|---|
| 1780 | ! |
|---|
| 1781 | do k = kmax1,kts, -1 |
|---|
| 1782 | do i = its,ite |
|---|
| 1783 | if(cnvflg(i).and.k.lt.jmin(i)) then |
|---|
| 1784 | gamma = el2orc * qeso(i,k) / to(i,k)**2 |
|---|
| 1785 | dhh=xhcd(i,k) |
|---|
| 1786 | dt= to(i,k) |
|---|
| 1787 | dg= gamma |
|---|
| 1788 | dh= heso(i,k) |
|---|
| 1789 | dz=-1.*(zl(i,k+1)-zl(i,k)) |
|---|
| 1790 | xaa0(i)=xaa0(i)+edtx(i)*dz*(g_/(cp_*dt))*((dhh-dh)/(1.+dg)) & |
|---|
| 1791 | *(1.+fv_*cp_*dg*dt/hvap_) |
|---|
| 1792 | xaa0(i)=xaa0(i)+edtx(i)* & |
|---|
| 1793 | dz*g_*fv_*max(0.,(qeso(i,k)-qo(i,k))) |
|---|
| 1794 | endif |
|---|
| 1795 | enddo |
|---|
| 1796 | enddo |
|---|
| 1797 | ! |
|---|
| 1798 | ! calculate critical cloud work function |
|---|
| 1799 | ! |
|---|
| 1800 | do i = its,ite |
|---|
| 1801 | acrt(i) = 0. |
|---|
| 1802 | if(cnvflg(i)) then |
|---|
| 1803 | if(p(i,ktcon(i)).lt.pcrit(15))then |
|---|
| 1804 | acrt(i)=acrit(15)*(975.-p(i,ktcon(i)))/(975.-pcrit(15)) |
|---|
| 1805 | else if(p(i,ktcon(i)).gt.pcrit(1))then |
|---|
| 1806 | acrt(i)=acrit(1) |
|---|
| 1807 | else |
|---|
| 1808 | k = int((850. - p(i,ktcon(i)))/50.) + 2 |
|---|
| 1809 | k = min(k,15) |
|---|
| 1810 | k = max(k,2) |
|---|
| 1811 | acrt(i)=acrit(k)+(acrit(k-1)-acrit(k))* & |
|---|
| 1812 | (p(i,ktcon(i))-pcrit(k))/(pcrit(k-1)-pcrit(k)) |
|---|
| 1813 | endif |
|---|
| 1814 | endif |
|---|
| 1815 | enddo |
|---|
| 1816 | ! |
|---|
| 1817 | do i = its,ite |
|---|
| 1818 | acrtfct(i) = 1. |
|---|
| 1819 | w1 = w1s |
|---|
| 1820 | w2 = w2s |
|---|
| 1821 | w3 = w3s |
|---|
| 1822 | w4 = w4s |
|---|
| 1823 | if(slimsk(i).eq.1.) then |
|---|
| 1824 | w1 = w1l |
|---|
| 1825 | w2 = w2l |
|---|
| 1826 | w3 = w3l |
|---|
| 1827 | w4 = w4l |
|---|
| 1828 | endif |
|---|
| 1829 | if(cnvflg(i)) then |
|---|
| 1830 | if(pdot(i).le.w4) then |
|---|
| 1831 | acrtfct(i) = (pdot(i) - w4) / (w3 - w4) |
|---|
| 1832 | elseif(pdot(i).ge.-w4) then |
|---|
| 1833 | acrtfct(i) = - (pdot(i) + w4) / (w4 - w3) |
|---|
| 1834 | else |
|---|
| 1835 | acrtfct(i) = 0. |
|---|
| 1836 | endif |
|---|
| 1837 | acrtfct(i) = max(acrtfct(i),-1.) |
|---|
| 1838 | acrtfct(i) = min(acrtfct(i),1.) |
|---|
| 1839 | acrtfct(i) = 1. - acrtfct(i) |
|---|
| 1840 | dtconv(i) = dt2 + max((1800. - dt2),0.) * (pdot(i) - w2) / (w1 - w2) |
|---|
| 1841 | dtconv(i) = max(dtconv(i),dtmin) |
|---|
| 1842 | dtconv(i) = min(dtconv(i),dtmax) |
|---|
| 1843 | ! |
|---|
| 1844 | endif |
|---|
| 1845 | enddo |
|---|
| 1846 | ! |
|---|
| 1847 | ! large scale forcing |
|---|
| 1848 | ! |
|---|
| 1849 | do i= its,ite |
|---|
| 1850 | if(cnvflg(i)) then |
|---|
| 1851 | f(i) = (aa1(i) - acrt(i) * acrtfct(i)) / dtconv(i) |
|---|
| 1852 | if(f(i).le.0.) cnvflg(i) = .false. |
|---|
| 1853 | endif |
|---|
| 1854 | if(cnvflg(i)) then |
|---|
| 1855 | xk(i) = (xaa0(i) - aa1(i)) / mbdt |
|---|
| 1856 | if(xk(i).ge.0.) cnvflg(i) = .false. |
|---|
| 1857 | endif |
|---|
| 1858 | ! |
|---|
| 1859 | ! kernel, cloud base mass flux |
|---|
| 1860 | ! |
|---|
| 1861 | if(cnvflg(i)) then |
|---|
| 1862 | xmb(i) = -f(i) / xk(i) |
|---|
| 1863 | xmb(i) = min(xmb(i),xmbmax(i)) |
|---|
| 1864 | endif |
|---|
| 1865 | ! |
|---|
| 1866 | if(cnvflg(i)) then |
|---|
| 1867 | endif |
|---|
| 1868 | ! |
|---|
| 1869 | enddo |
|---|
| 1870 | totflg = .true. |
|---|
| 1871 | do i = its,ite |
|---|
| 1872 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 1873 | enddo |
|---|
| 1874 | if(totflg) return |
|---|
| 1875 | ! |
|---|
| 1876 | ! restore t0 and qo to t1 and q1 in case convection stops |
|---|
| 1877 | ! |
|---|
| 1878 | do k = kts,kmax |
|---|
| 1879 | do i = its,ite |
|---|
| 1880 | if (cnvflg(i)) then |
|---|
| 1881 | to(i,k) = t1(i,k) |
|---|
| 1882 | qo(i,k) = q1(i,k) |
|---|
| 1883 | uo(i,k) = u1(i,k) |
|---|
| 1884 | vo(i,k) = v1(i,k) |
|---|
| 1885 | qeso(i,k) = 0.01*fpvs(t1(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 1886 | qeso(i,k) = eps * qeso(i,k) / (p(i,k) + (eps-1.) * qeso(i,k)) |
|---|
| 1887 | qeso(i,k) = max(qeso(i,k),qmin_) |
|---|
| 1888 | endif |
|---|
| 1889 | enddo |
|---|
| 1890 | enddo |
|---|
| 1891 | ! |
|---|
| 1892 | ! feedback: simply the changes from the cloud with unit mass flux |
|---|
| 1893 | ! multiplied by the mass flux necessary to keep the |
|---|
| 1894 | ! equilibrium with the larger-scale. |
|---|
| 1895 | ! |
|---|
| 1896 | do i = its,ite |
|---|
| 1897 | delhbar(i) = 0. |
|---|
| 1898 | delqbar(i) = 0. |
|---|
| 1899 | deltbar(i) = 0. |
|---|
| 1900 | qcond(i) = 0. |
|---|
| 1901 | qrski(i) = 0. |
|---|
| 1902 | delubar(i) = 0. |
|---|
| 1903 | delvbar(i) = 0. |
|---|
| 1904 | enddo |
|---|
| 1905 | ! |
|---|
| 1906 | do k = kts,kmax |
|---|
| 1907 | do i = its,ite |
|---|
| 1908 | if(cnvflg(i).and.k.le.ktcon(i)) then |
|---|
| 1909 | aup = 1. |
|---|
| 1910 | if(k.le.kb(i)) aup = 0. |
|---|
| 1911 | adw = 1. |
|---|
| 1912 | if(k.gt.jmin(i)) adw = 0. |
|---|
| 1913 | dellat = (dellah(i,k) - hvap_ * dellaq(i,k)) / cp_ |
|---|
| 1914 | t1(i,k) = t1(i,k) + dellat * xmb(i) * dt2 |
|---|
| 1915 | q1(i,k) = q1(i,k) + dellaq(i,k) * xmb(i) * dt2 |
|---|
| 1916 | tem=1./rcs |
|---|
| 1917 | u1(i,k) = u1(i,k) + dellau(i,k) * xmb(i) * dt2 * tem |
|---|
| 1918 | v1(i,k) = v1(i,k) + dellav(i,k) * xmb(i) * dt2 * tem |
|---|
| 1919 | dp = 1000. * del(i,k) |
|---|
| 1920 | delhbar(i) = delhbar(i) + dellah(i,k)*xmb(i)*dp/g_ |
|---|
| 1921 | delqbar(i) = delqbar(i) + dellaq(i,k)*xmb(i)*dp/g_ |
|---|
| 1922 | deltbar(i) = deltbar(i) + dellat*xmb(i)*dp/g_ |
|---|
| 1923 | delubar(i) = delubar(i) + dellau(i,k)*xmb(i)*dp/g_ |
|---|
| 1924 | delvbar(i) = delvbar(i) + dellav(i,k)*xmb(i)*dp/g_ |
|---|
| 1925 | endif |
|---|
| 1926 | enddo |
|---|
| 1927 | enddo |
|---|
| 1928 | ! |
|---|
| 1929 | do i = its,ite |
|---|
| 1930 | if(cnvflg(i)) then |
|---|
| 1931 | endif |
|---|
| 1932 | enddo |
|---|
| 1933 | ! |
|---|
| 1934 | do k = kts,kmax |
|---|
| 1935 | do i = its,ite |
|---|
| 1936 | if (cnvflg(i) .and. k.le.ktcon(i)) then |
|---|
| 1937 | qeso(i,k)=0.01* fpvs(t1(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 1938 | qeso(i,k) = eps * qeso(i,k)/(p(i,k) + (eps-1.)*qeso(i,k)) |
|---|
| 1939 | qeso(i,k) = max(qeso(i,k), qmin_ ) |
|---|
| 1940 | endif |
|---|
| 1941 | enddo |
|---|
| 1942 | enddo |
|---|
| 1943 | ! |
|---|
| 1944 | do i = its,ite |
|---|
| 1945 | rntot(i) = 0. |
|---|
| 1946 | delqev(i) = 0. |
|---|
| 1947 | delq2(i) = 0. |
|---|
| 1948 | flg(i) = cnvflg(i) |
|---|
| 1949 | enddo |
|---|
| 1950 | ! |
|---|
| 1951 | ! comptute rainfall |
|---|
| 1952 | ! |
|---|
| 1953 | do k = kmax,kts,-1 |
|---|
| 1954 | do i = its,ite |
|---|
| 1955 | if(cnvflg(i).and.k.lt.ktcon(i)) then |
|---|
| 1956 | aup = 1. |
|---|
| 1957 | if(k.le.kb(i)) aup = 0. |
|---|
| 1958 | adw = 1. |
|---|
| 1959 | if(k.ge.jmin(i)) adw = 0. |
|---|
| 1960 | rntot(i) = rntot(i) & |
|---|
| 1961 | + (aup * pwo(i,k) + adw * edto(i) * pwdo(i,k)) & |
|---|
| 1962 | * xmb(i) * .001 * dt2 |
|---|
| 1963 | endif |
|---|
| 1964 | enddo |
|---|
| 1965 | enddo |
|---|
| 1966 | ! |
|---|
| 1967 | ! conversion rainfall (m) and compute the evaporation of falling raindrops |
|---|
| 1968 | ! |
|---|
| 1969 | do k = kmax,kts,-1 |
|---|
| 1970 | do i = its,ite |
|---|
| 1971 | delq(i) = 0.0 |
|---|
| 1972 | deltv(i) = 0.0 |
|---|
| 1973 | qevap(i) = 0.0 |
|---|
| 1974 | if(cnvflg(i).and.k.lt.ktcon(i)) then |
|---|
| 1975 | aup = 1. |
|---|
| 1976 | if(k.le.kb(i)) aup = 0. |
|---|
| 1977 | adw = 1. |
|---|
| 1978 | if(k.ge.jmin(i)) adw = 0. |
|---|
| 1979 | rain(i) = rain(i) & |
|---|
| 1980 | + (aup * pwo(i,k) + adw * edto(i) * pwdo(i,k)) & |
|---|
| 1981 | * xmb(i) * .001 * dt2 |
|---|
| 1982 | endif |
|---|
| 1983 | if(flg(i).and.k.lt.ktcon(i)) then |
|---|
| 1984 | evef = edt(i) * evfacts |
|---|
| 1985 | if(slimsk(i).eq.1.) evef = edt(i) * evfactl |
|---|
| 1986 | qcond(i) = evef * (q1(i,k) - qeso(i,k)) / (1. + el2orc * & |
|---|
| 1987 | qeso(i,k) / t1(i,k)**2) |
|---|
| 1988 | dp = 1000. * del(i,k) |
|---|
| 1989 | if(rain(i).gt.0..and.qcond(i).lt.0.) then |
|---|
| 1990 | qevap(i) = -qcond(i) * (1. - exp(-.32 * sqrt(dt2 * rain(i)))) |
|---|
| 1991 | qevap(i) = min(qevap(i), rain(i)*1000.*g_/dp) |
|---|
| 1992 | delq2(i) = delqev(i) + .001 * qevap(i) * dp / g_ |
|---|
| 1993 | if (delq2(i).gt.rntot(i)) then |
|---|
| 1994 | qevap(i) = 1000.* g_ * (rntot(i) - delqev(i)) / dp |
|---|
| 1995 | flg(i) = .false. |
|---|
| 1996 | endif |
|---|
| 1997 | endif |
|---|
| 1998 | if(rain(i).gt.0..and.qevap(i).gt.0.) then |
|---|
| 1999 | q1(i,k) = q1(i,k) + qevap(i) |
|---|
| 2000 | t1(i,k) = t1(i,k) - (hvap_/cp_) * qevap(i) |
|---|
| 2001 | rain(i) = rain(i) - .001 * qevap(i) * dp / g_ |
|---|
| 2002 | delqev(i) = delqev(i) + .001*dp*qevap(i)/g_ |
|---|
| 2003 | deltv(i) = - (hvap_/cp_)*qevap(i)/dt2 |
|---|
| 2004 | delq(i) = + qevap(i)/dt2 |
|---|
| 2005 | endif |
|---|
| 2006 | dellaq(i,k) = dellaq(i,k) + delq(i)/xmb(i) |
|---|
| 2007 | delqbar(i) = delqbar(i) + delq(i)*dp/g_ |
|---|
| 2008 | deltbar(i) = deltbar(i) + deltv(i)*dp/g_ |
|---|
| 2009 | endif |
|---|
| 2010 | enddo |
|---|
| 2011 | enddo |
|---|
| 2012 | ! |
|---|
| 2013 | ! |
|---|
| 2014 | ! consider the negative rain in the event of rain evaporation and downdrafts |
|---|
| 2015 | ! |
|---|
| 2016 | do i = its,ite |
|---|
| 2017 | if(cnvflg(i)) then |
|---|
| 2018 | if(rain(i).lt.0..and..not.flg(i)) rain(i) = 0. |
|---|
| 2019 | if(rain(i).le.0.) then |
|---|
| 2020 | rain(i) = 0. |
|---|
| 2021 | else |
|---|
| 2022 | ktop(i) = ktcon(i) |
|---|
| 2023 | kbot(i) = kbcon(i) |
|---|
| 2024 | kuo(i) = 1 |
|---|
| 2025 | endif |
|---|
| 2026 | endif |
|---|
| 2027 | enddo |
|---|
| 2028 | ! |
|---|
| 2029 | do k = kts,kmax |
|---|
| 2030 | do i = its,ite |
|---|
| 2031 | if(cnvflg(i).and.rain(i).le.0.) then |
|---|
| 2032 | t1(i,k) = to(i,k) |
|---|
| 2033 | q1(i,k) = qo(i,k) |
|---|
| 2034 | u1(i,k) = uo(i,k) |
|---|
| 2035 | v1(i,k) = vo(i,k) |
|---|
| 2036 | endif |
|---|
| 2037 | enddo |
|---|
| 2038 | enddo |
|---|
| 2039 | ! |
|---|
| 2040 | ! detrainment of cloud water and ice |
|---|
| 2041 | ! |
|---|
| 2042 | if (ncloud.gt.0) then |
|---|
| 2043 | do k = kts,kmax |
|---|
| 2044 | do i = its,ite |
|---|
| 2045 | if (cnvflg(i) .and. rain(i).gt.0.) then |
|---|
| 2046 | if (k.ge.kbcon(i).and.k.le.ktcon(i)) then |
|---|
| 2047 | tem = dellal(i,k) * xmb(i) * dt2 |
|---|
| 2048 | tem1 = max(0.0, min(1.0, (tcr-t1(i,k))*tcrf)) |
|---|
| 2049 | if (ncloud.ge.4) then |
|---|
| 2050 | qi2(i,k) = qi2(i,k) + tem * tem1 ! ice |
|---|
| 2051 | qc2(i,k) = qc2(i,k) + tem *(1.0-tem1) ! water |
|---|
| 2052 | else |
|---|
| 2053 | qc2(i,k) = qc2(i,k) + tem |
|---|
| 2054 | endif |
|---|
| 2055 | endif |
|---|
| 2056 | endif |
|---|
| 2057 | enddo |
|---|
| 2058 | enddo |
|---|
| 2059 | endif |
|---|
| 2060 | ! |
|---|
| 2061 | end subroutine nsas2d |
|---|
| 2062 | !=============================================================================== |
|---|
| 2063 | REAL FUNCTION fpvs(t,ice,rd,rv,cvap,cliq,cice,hvap,hsub,psat,t0c) |
|---|
| 2064 | !------------------------------------------------------------------------------- |
|---|
| 2065 | IMPLICIT NONE |
|---|
| 2066 | !------------------------------------------------------------------------------- |
|---|
| 2067 | REAL :: t,rd,rv,cvap,cliq,cice,hvap,hsub,psat,t0c,dldt,xa,xb,dldti, & |
|---|
| 2068 | xai,xbi,ttp,tr |
|---|
| 2069 | INTEGER :: ice |
|---|
| 2070 | ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|---|
| 2071 | ttp=t0c+0.01 |
|---|
| 2072 | dldt=cvap-cliq |
|---|
| 2073 | xa=-dldt/rv |
|---|
| 2074 | xb=xa+hvap/(rv*ttp) |
|---|
| 2075 | dldti=cvap-cice |
|---|
| 2076 | xai=-dldti/rv |
|---|
| 2077 | xbi=xai+hsub/(rv*ttp) |
|---|
| 2078 | tr=ttp/t |
|---|
| 2079 | if(t.lt.ttp.and.ice.eq.1) then |
|---|
| 2080 | fpvs=psat*(tr**xai)*exp(xbi*(1.-tr)) |
|---|
| 2081 | else |
|---|
| 2082 | fpvs=psat*(tr**xa)*exp(xb*(1.-tr)) |
|---|
| 2083 | endif |
|---|
| 2084 | ! |
|---|
| 2085 | if (t.lt.180.) then |
|---|
| 2086 | tr=ttp/180. |
|---|
| 2087 | if(t.lt.ttp.and.ice.eq.1) then |
|---|
| 2088 | fpvs=psat*(tr**xai)*exp(xbi*(1.-tr)) |
|---|
| 2089 | else |
|---|
| 2090 | fpvs=psat*(tr**xa)*exp(xb*(1.-tr)) |
|---|
| 2091 | endif |
|---|
| 2092 | endif |
|---|
| 2093 | ! |
|---|
| 2094 | if (t.ge.330.) then |
|---|
| 2095 | tr=ttp/330 |
|---|
| 2096 | if(t.lt.ttp.and.ice.eq.1) then |
|---|
| 2097 | fpvs=psat*(tr**xai)*exp(xbi*(1.-tr)) |
|---|
| 2098 | else |
|---|
| 2099 | fpvs=psat*(tr**xa)*exp(xb*(1.-tr)) |
|---|
| 2100 | endif |
|---|
| 2101 | endif |
|---|
| 2102 | ! |
|---|
| 2103 | ! - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
|---|
| 2104 | END FUNCTION fpvs |
|---|
| 2105 | !=============================================================================== |
|---|
| 2106 | subroutine nsasinit(rthcuten,rqvcuten,rqccuten,rqicuten, & |
|---|
| 2107 | rucuten,rvcuten, & |
|---|
| 2108 | restart,p_qc,p_qi,p_first_scalar, & |
|---|
| 2109 | allowed_to_read, & |
|---|
| 2110 | ids, ide, jds, jde, kds, kde, & |
|---|
| 2111 | ims, ime, jms, jme, kms, kme, & |
|---|
| 2112 | its, ite, jts, jte, kts, kte ) |
|---|
| 2113 | !------------------------------------------------------------------------------- |
|---|
| 2114 | implicit none |
|---|
| 2115 | !------------------------------------------------------------------------------- |
|---|
| 2116 | logical , intent(in) :: allowed_to_read,restart |
|---|
| 2117 | integer , intent(in) :: ids, ide, jds, jde, kds, kde, & |
|---|
| 2118 | ims, ime, jms, jme, kms, kme, & |
|---|
| 2119 | its, ite, jts, jte, kts, kte |
|---|
| 2120 | integer , intent(in) :: p_first_scalar, p_qi, p_qc |
|---|
| 2121 | real, dimension( ims:ime , kms:kme , jms:jme ) , intent(out) :: & |
|---|
| 2122 | rthcuten, & |
|---|
| 2123 | rqvcuten, & |
|---|
| 2124 | rucuten, & |
|---|
| 2125 | rvcuten, & |
|---|
| 2126 | rqccuten, & |
|---|
| 2127 | rqicuten |
|---|
| 2128 | integer :: i, j, k, itf, jtf, ktf |
|---|
| 2129 | jtf=min0(jte,jde-1) |
|---|
| 2130 | ktf=min0(kte,kde-1) |
|---|
| 2131 | itf=min0(ite,ide-1) |
|---|
| 2132 | if(.not.restart)then |
|---|
| 2133 | do j=jts,jtf |
|---|
| 2134 | do k=kts,ktf |
|---|
| 2135 | do i=its,itf |
|---|
| 2136 | rthcuten(i,k,j)=0. |
|---|
| 2137 | rqvcuten(i,k,j)=0. |
|---|
| 2138 | rucuten(i,k,j)=0. |
|---|
| 2139 | rvcuten(i,k,j)=0. |
|---|
| 2140 | enddo |
|---|
| 2141 | enddo |
|---|
| 2142 | enddo |
|---|
| 2143 | if (p_qc .ge. p_first_scalar) then |
|---|
| 2144 | do j=jts,jtf |
|---|
| 2145 | do k=kts,ktf |
|---|
| 2146 | do i=its,itf |
|---|
| 2147 | rqccuten(i,k,j)=0. |
|---|
| 2148 | enddo |
|---|
| 2149 | enddo |
|---|
| 2150 | enddo |
|---|
| 2151 | endif |
|---|
| 2152 | if (p_qi .ge. p_first_scalar) then |
|---|
| 2153 | do j=jts,jtf |
|---|
| 2154 | do k=kts,ktf |
|---|
| 2155 | do i=its,itf |
|---|
| 2156 | rqicuten(i,k,j)=0. |
|---|
| 2157 | enddo |
|---|
| 2158 | enddo |
|---|
| 2159 | enddo |
|---|
| 2160 | endif |
|---|
| 2161 | endif |
|---|
| 2162 | end subroutine nsasinit |
|---|
| 2163 | ! |
|---|
| 2164 | !============================================================================== |
|---|
| 2165 | ! NCEP SCV (Shallow Convection Scheme) |
|---|
| 2166 | !============================================================================== |
|---|
| 2167 | subroutine nscv2d(delt,del,prsl,prsi,prslk,zl,zi, & |
|---|
| 2168 | ncloud,qc2,qi2,q1,t1,rain,kbot,ktop, & |
|---|
| 2169 | kuo, & |
|---|
| 2170 | slimsk,dot,u1,v1, & |
|---|
| 2171 | cp_,cliq_,cvap_,g_,hvap_,rd_,rv_,fv_,ep2, & |
|---|
| 2172 | cice,xls,psat, & |
|---|
| 2173 | hpbl,hfx,qfx, & |
|---|
| 2174 | ids,ide, jds,jde, kds,kde, & |
|---|
| 2175 | ims,ime, jms,jme, kms,kme, & |
|---|
| 2176 | its,ite, jts,jte, kts,kte) |
|---|
| 2177 | ! |
|---|
| 2178 | !------------------------------------------------------------------------------- |
|---|
| 2179 | ! |
|---|
| 2180 | ! subprogram: nscv2d computes shallow-convective heating and moisng |
|---|
| 2181 | ! |
|---|
| 2182 | ! abstract: computes non-precipitating convective heating and moistening |
|---|
| 2183 | ! using a one cloud type arakawa-schubert convection scheme as in the ncep |
|---|
| 2184 | ! sas scheme. the scheme has been operational at ncep gfs model since july 2010 |
|---|
| 2185 | ! the scheme includes updraft and downdraft effects, but the cloud depth is |
|---|
| 2186 | ! limited less than 150 hpa. |
|---|
| 2187 | ! |
|---|
| 2188 | ! developed by jong-il han and hua-lu pan |
|---|
| 2189 | ! implemented into wrf by jiheon jang and songyou hong |
|---|
| 2190 | ! module with cpp-based options is available in grims |
|---|
| 2191 | ! |
|---|
| 2192 | ! program history log: |
|---|
| 2193 | ! 10-07-01 jong-il han initial operational implementation at ncep gfs |
|---|
| 2194 | ! 10-12-01 jihyeon jang implemented into wrf |
|---|
| 2195 | ! |
|---|
| 2196 | ! subprograms called: |
|---|
| 2197 | ! fpvs - function to compute saturation vapor pressure |
|---|
| 2198 | ! |
|---|
| 2199 | ! references: |
|---|
| 2200 | ! han and pan (2010, wea. forecasting) |
|---|
| 2201 | ! |
|---|
| 2202 | !------------------------------------------------------------------------------- |
|---|
| 2203 | implicit none |
|---|
| 2204 | !------------------------------------------------------------------------------- |
|---|
| 2205 | ! in/out variables |
|---|
| 2206 | ! |
|---|
| 2207 | integer :: ids,ide, jds,jde, kds,kde, & |
|---|
| 2208 | ims,ime, jms,jme, kms,kme, & |
|---|
| 2209 | its,ite, jts,jte, kts,kte |
|---|
| 2210 | real :: cp_,cliq_,cvap_,g_,hvap_,rd_,rv_,fv_,ep2 |
|---|
| 2211 | real :: pi_,qmin_,t0c_ |
|---|
| 2212 | real :: cice,xlv0,xls,psat |
|---|
| 2213 | ! |
|---|
| 2214 | real :: delt |
|---|
| 2215 | real :: del(its:ite,kts:kte), & |
|---|
| 2216 | prsl(its:ite,kts:kte),prslk(ims:ime,kms:kme), & |
|---|
| 2217 | prsi(its:ite,kts:kte+1),zl(its:ite,kts:kte) |
|---|
| 2218 | integer :: ncloud |
|---|
| 2219 | real :: slimsk(ims:ime) |
|---|
| 2220 | real :: dot(its:ite,kts:kte) |
|---|
| 2221 | real :: hpbl(ims:ime) |
|---|
| 2222 | real :: rcs |
|---|
| 2223 | real :: hfx(ims:ime),qfx(ims:ime) |
|---|
| 2224 | ! |
|---|
| 2225 | real :: qi2(its:ite,kts:kte),qc2(its:ite,kts:kte) |
|---|
| 2226 | real :: q1(its:ite,kts:kte), & |
|---|
| 2227 | t1(its:ite,kts:kte), & |
|---|
| 2228 | u1(its:ite,kts:kte), & |
|---|
| 2229 | v1(its:ite,kts:kte) |
|---|
| 2230 | integer :: kuo(its:ite) |
|---|
| 2231 | ! |
|---|
| 2232 | real :: rain(its:ite) |
|---|
| 2233 | integer :: kbot(its:ite),ktop(its:ite) |
|---|
| 2234 | ! |
|---|
| 2235 | ! local variables and arrays |
|---|
| 2236 | ! |
|---|
| 2237 | integer :: i,j,indx, jmn, k, kk, km1 |
|---|
| 2238 | integer :: kpbl(its:ite) |
|---|
| 2239 | ! |
|---|
| 2240 | real :: dellat, & |
|---|
| 2241 | desdt, deta, detad, dg, & |
|---|
| 2242 | dh, dhh, dlnsig, dp, & |
|---|
| 2243 | dq, dqsdp, dqsdt, dt, & |
|---|
| 2244 | dt2, dtmax, dtmin, & |
|---|
| 2245 | dv1h, dv2h, dv3h, & |
|---|
| 2246 | dv1q, dv2q, dv3q, & |
|---|
| 2247 | dv1u, dv2u, dv3u, & |
|---|
| 2248 | dv1v, dv2v, dv3v, & |
|---|
| 2249 | dz, dz1, e1, clam, & |
|---|
| 2250 | aafac, & |
|---|
| 2251 | es, etah, & |
|---|
| 2252 | evef, evfact, evfactl, & |
|---|
| 2253 | factor, fjcap, & |
|---|
| 2254 | gamma, pprime, betaw, & |
|---|
| 2255 | qlk, qrch, qs, & |
|---|
| 2256 | rfact, shear, tem1, & |
|---|
| 2257 | tem2, val, val1, & |
|---|
| 2258 | val2, w1, w1l, w1s, & |
|---|
| 2259 | w2, w2l, w2s, w3, & |
|---|
| 2260 | w3l, w3s, w4, w4l, & |
|---|
| 2261 | w4s, tem, ptem, ptem1, & |
|---|
| 2262 | pgcon |
|---|
| 2263 | ! |
|---|
| 2264 | integer :: kb(its:ite), kbcon(its:ite), kbcon1(its:ite), & |
|---|
| 2265 | ktcon(its:ite), ktcon1(its:ite), & |
|---|
| 2266 | kbm(its:ite), kmax(its:ite) |
|---|
| 2267 | ! |
|---|
| 2268 | real :: aa1(its:ite), & |
|---|
| 2269 | delhbar(its:ite), delq(its:ite), & |
|---|
| 2270 | delq2(its:ite), delqev(its:ite), rntot(its:ite), & |
|---|
| 2271 | delqbar(its:ite), deltbar(its:ite), & |
|---|
| 2272 | deltv(its:ite), edt(its:ite), & |
|---|
| 2273 | wstar(its:ite), sflx(its:ite), & |
|---|
| 2274 | pdot(its:ite), po(its:ite,kts:kte), & |
|---|
| 2275 | qcond(its:ite), qevap(its:ite), hmax(its:ite), & |
|---|
| 2276 | vshear(its:ite), & |
|---|
| 2277 | xlamud(its:ite), xmb(its:ite), xmbmax(its:ite) |
|---|
| 2278 | real :: delubar(its:ite), delvbar(its:ite) |
|---|
| 2279 | ! |
|---|
| 2280 | real :: cincr |
|---|
| 2281 | ! |
|---|
| 2282 | real :: thx(its:ite, kts:kte) |
|---|
| 2283 | real :: rhox(its:ite) |
|---|
| 2284 | real :: tvcon |
|---|
| 2285 | ! |
|---|
| 2286 | real :: p(its:ite,kts:kte), to(its:ite,kts:kte), & |
|---|
| 2287 | qo(its:ite,kts:kte), qeso(its:ite,kts:kte), & |
|---|
| 2288 | uo(its:ite,kts:kte), vo(its:ite,kts:kte) |
|---|
| 2289 | ! |
|---|
| 2290 | ! cloud water |
|---|
| 2291 | ! |
|---|
| 2292 | real :: qlko_ktcon(its:ite), dellal(its:ite,kts:kte), & |
|---|
| 2293 | dbyo(its:ite,kts:kte), & |
|---|
| 2294 | xlamue(its:ite,kts:kte), & |
|---|
| 2295 | heo(its:ite,kts:kte), heso(its:ite,kts:kte), & |
|---|
| 2296 | dellah(its:ite,kts:kte), dellaq(its:ite,kts:kte), & |
|---|
| 2297 | dellau(its:ite,kts:kte), dellav(its:ite,kts:kte), & |
|---|
| 2298 | ucko(its:ite,kts:kte), vcko(its:ite,kts:kte), & |
|---|
| 2299 | hcko(its:ite,kts:kte), qcko(its:ite,kts:kte), & |
|---|
| 2300 | eta(its:ite,kts:kte), zi(its:ite,kts:kte+1), & |
|---|
| 2301 | pwo(its:ite,kts:kte) |
|---|
| 2302 | ! |
|---|
| 2303 | logical :: totflg, cnvflg(its:ite), flg(its:ite) |
|---|
| 2304 | ! |
|---|
| 2305 | ! physical parameters |
|---|
| 2306 | ! |
|---|
| 2307 | real,parameter :: c0=.002,c1=5.e-4 |
|---|
| 2308 | real,parameter :: cincrmax=180.,cincrmin=120.,dthk=25. |
|---|
| 2309 | real :: el2orc,fact1,fact2,eps |
|---|
| 2310 | real,parameter :: h1=0.33333333 |
|---|
| 2311 | real,parameter :: tf=233.16, tcr=263.16, tcrf=1.0/(tcr-tf) |
|---|
| 2312 | ! |
|---|
| 2313 | !------------------------------------------------------------------------------- |
|---|
| 2314 | ! |
|---|
| 2315 | pi_ = 3.14159 |
|---|
| 2316 | qmin_ = 1.0e-30 |
|---|
| 2317 | t0c_ = 273.15 |
|---|
| 2318 | xlv0 = hvap_ |
|---|
| 2319 | km1 = kte - 1 |
|---|
| 2320 | ! |
|---|
| 2321 | ! compute surface buoyancy flux |
|---|
| 2322 | ! |
|---|
| 2323 | do k = kts,kte |
|---|
| 2324 | do i = its,ite |
|---|
| 2325 | thx(i,k) = t1(i,k)/prslk(i,k) |
|---|
| 2326 | enddo |
|---|
| 2327 | enddo |
|---|
| 2328 | ! |
|---|
| 2329 | do i=its,ite |
|---|
| 2330 | tvcon = (1.+fv_*q1(i,1)) |
|---|
| 2331 | rhox(i) = prsl(i,1)*1.e3/(rd_*t1(i,1)*tvcon) |
|---|
| 2332 | enddo |
|---|
| 2333 | ! |
|---|
| 2334 | do i=its,ite |
|---|
| 2335 | ! sflx(i) = heat(i)+fv_*t1(i,1)*evap(i) |
|---|
| 2336 | sflx(i) = hfx(i)/rhox(i)/cp_ + qfx(i)/rhox(i)*fv_*thx(i,1) |
|---|
| 2337 | enddo |
|---|
| 2338 | ! |
|---|
| 2339 | ! initialize arrays |
|---|
| 2340 | ! |
|---|
| 2341 | do i=its,ite |
|---|
| 2342 | cnvflg(i) = .true. |
|---|
| 2343 | if(kuo(i).eq.1) cnvflg(i) = .false. |
|---|
| 2344 | if(sflx(i).le.0.) cnvflg(i) = .false. |
|---|
| 2345 | if(cnvflg(i)) then |
|---|
| 2346 | kbot(i)=kte+1 |
|---|
| 2347 | ktop(i)=0 |
|---|
| 2348 | endif |
|---|
| 2349 | rain(i)=0. |
|---|
| 2350 | kbcon(i)=kte |
|---|
| 2351 | ktcon(i)=1 |
|---|
| 2352 | kb(i)=kte |
|---|
| 2353 | pdot(i) = 0. |
|---|
| 2354 | qlko_ktcon(i) = 0. |
|---|
| 2355 | edt(i) = 0. |
|---|
| 2356 | aa1(i) = 0. |
|---|
| 2357 | vshear(i) = 0. |
|---|
| 2358 | enddo |
|---|
| 2359 | ! |
|---|
| 2360 | totflg = .true. |
|---|
| 2361 | do i=its,ite |
|---|
| 2362 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 2363 | enddo |
|---|
| 2364 | if(totflg) return |
|---|
| 2365 | ! |
|---|
| 2366 | dt2 = delt |
|---|
| 2367 | val = 1200. |
|---|
| 2368 | dtmin = max(dt2, val ) |
|---|
| 2369 | val = 3600. |
|---|
| 2370 | dtmax = max(dt2, val ) |
|---|
| 2371 | ! model tunable parameters are all here |
|---|
| 2372 | clam = .3 |
|---|
| 2373 | aafac = .1 |
|---|
| 2374 | betaw = .03 |
|---|
| 2375 | evfact = 0.3 |
|---|
| 2376 | evfactl = 0.3 |
|---|
| 2377 | pgcon = 0.55 ! Zhang & Wu (2003,JAS) |
|---|
| 2378 | val = 1. |
|---|
| 2379 | ! |
|---|
| 2380 | ! define miscellaneous values |
|---|
| 2381 | ! |
|---|
| 2382 | el2orc = hvap_*hvap_/(rv_*cp_) |
|---|
| 2383 | eps = rd_/rv_ |
|---|
| 2384 | fact1 = (cvap_-cliq_)/rv_ |
|---|
| 2385 | fact2 = hvap_/rv_-fact1*t0c_ |
|---|
| 2386 | ! |
|---|
| 2387 | w1l = -8.e-3 |
|---|
| 2388 | w2l = -4.e-2 |
|---|
| 2389 | w3l = -5.e-3 |
|---|
| 2390 | w4l = -5.e-4 |
|---|
| 2391 | w1s = -2.e-4 |
|---|
| 2392 | w2s = -2.e-3 |
|---|
| 2393 | w3s = -1.e-3 |
|---|
| 2394 | w4s = -2.e-5 |
|---|
| 2395 | ! |
|---|
| 2396 | ! define top layer for search of the downdraft originating layer |
|---|
| 2397 | ! and the maximum thetae for updraft |
|---|
| 2398 | ! |
|---|
| 2399 | do i=its,ite |
|---|
| 2400 | kbm(i) = kte |
|---|
| 2401 | kmax(i) = kte |
|---|
| 2402 | enddo |
|---|
| 2403 | ! |
|---|
| 2404 | do k = kts, kte |
|---|
| 2405 | do i=its,ite |
|---|
| 2406 | if (prsl(i,k).gt.prsi(i,1)*0.70) kbm(i) = k + 1 |
|---|
| 2407 | if (prsl(i,k).gt.prsi(i,1)*0.60) kmax(i) = k + 1 |
|---|
| 2408 | enddo |
|---|
| 2409 | enddo |
|---|
| 2410 | do i=its,ite |
|---|
| 2411 | kbm(i) = min(kbm(i),kmax(i)) |
|---|
| 2412 | enddo |
|---|
| 2413 | ! |
|---|
| 2414 | ! hydrostatic height assume zero terr and compute |
|---|
| 2415 | ! updraft entrainment rate as an inverse function of height |
|---|
| 2416 | ! |
|---|
| 2417 | do k = kts, km1 |
|---|
| 2418 | do i=its,ite |
|---|
| 2419 | xlamue(i,k) = clam / zi(i,k) |
|---|
| 2420 | enddo |
|---|
| 2421 | enddo |
|---|
| 2422 | do i=its,ite |
|---|
| 2423 | xlamue(i,kte) = xlamue(i,km1) |
|---|
| 2424 | enddo |
|---|
| 2425 | ! |
|---|
| 2426 | ! pbl height |
|---|
| 2427 | ! |
|---|
| 2428 | do i=its,ite |
|---|
| 2429 | flg(i) = cnvflg(i) |
|---|
| 2430 | kpbl(i)= 1 |
|---|
| 2431 | enddo |
|---|
| 2432 | ! |
|---|
| 2433 | do k = kts+1, km1 |
|---|
| 2434 | do i=its,ite |
|---|
| 2435 | if (flg(i).and.zl(i,k).le.hpbl(i)) then |
|---|
| 2436 | kpbl(i) = k |
|---|
| 2437 | else |
|---|
| 2438 | flg(i) = .false. |
|---|
| 2439 | endif |
|---|
| 2440 | enddo |
|---|
| 2441 | enddo |
|---|
| 2442 | ! |
|---|
| 2443 | do i=its,ite |
|---|
| 2444 | kpbl(i)= min(kpbl(i),kbm(i)) |
|---|
| 2445 | enddo |
|---|
| 2446 | ! |
|---|
| 2447 | ! convert surface pressure to mb from cb |
|---|
| 2448 | ! |
|---|
| 2449 | rcs = 1. |
|---|
| 2450 | do k = kts, kte |
|---|
| 2451 | do i =its,ite |
|---|
| 2452 | if (cnvflg(i) .and. k .le. kmax(i)) then |
|---|
| 2453 | p(i,k) = prsl(i,k) * 10.0 |
|---|
| 2454 | eta(i,k) = 1. |
|---|
| 2455 | hcko(i,k) = 0. |
|---|
| 2456 | qcko(i,k) = 0. |
|---|
| 2457 | ucko(i,k) = 0. |
|---|
| 2458 | vcko(i,k) = 0. |
|---|
| 2459 | dbyo(i,k) = 0. |
|---|
| 2460 | pwo(i,k) = 0. |
|---|
| 2461 | dellal(i,k) = 0. |
|---|
| 2462 | to(i,k) = t1(i,k) |
|---|
| 2463 | qo(i,k) = q1(i,k) |
|---|
| 2464 | uo(i,k) = u1(i,k) * rcs |
|---|
| 2465 | vo(i,k) = v1(i,k) * rcs |
|---|
| 2466 | endif |
|---|
| 2467 | enddo |
|---|
| 2468 | enddo |
|---|
| 2469 | ! |
|---|
| 2470 | ! |
|---|
| 2471 | ! column variables |
|---|
| 2472 | ! p is pressure of the layer (mb) |
|---|
| 2473 | ! t is temperature at t-dt (k)..tn |
|---|
| 2474 | ! q is mixing ratio at t-dt (kg/kg)..qn |
|---|
| 2475 | ! to is temperature at t+dt (k)... this is after advection and turbulan |
|---|
| 2476 | ! qo is mixing ratio at t+dt (kg/kg)..q1 |
|---|
| 2477 | ! |
|---|
| 2478 | do k = kts, kte |
|---|
| 2479 | do i=its,ite |
|---|
| 2480 | if (cnvflg(i) .and. k .le. kmax(i)) then |
|---|
| 2481 | qeso(i,k) = 0.01 * fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 2482 | qeso(i,k) = eps * qeso(i,k) / (p(i,k) + (eps-1.)*qeso(i,k)) |
|---|
| 2483 | val1 = 1.e-8 |
|---|
| 2484 | qeso(i,k) = max(qeso(i,k), val1) |
|---|
| 2485 | val2 = 1.e-10 |
|---|
| 2486 | qo(i,k) = max(qo(i,k), val2 ) |
|---|
| 2487 | endif |
|---|
| 2488 | enddo |
|---|
| 2489 | enddo |
|---|
| 2490 | ! |
|---|
| 2491 | ! compute moist static energy |
|---|
| 2492 | ! |
|---|
| 2493 | do k = kts,kte |
|---|
| 2494 | do i=its,ite |
|---|
| 2495 | if (cnvflg(i) .and. k .le. kmax(i)) then |
|---|
| 2496 | tem = g_ * zl(i,k) + cp_ * to(i,k) |
|---|
| 2497 | heo(i,k) = tem + hvap_ * qo(i,k) |
|---|
| 2498 | heso(i,k) = tem + hvap_ * qeso(i,k) |
|---|
| 2499 | endif |
|---|
| 2500 | enddo |
|---|
| 2501 | enddo |
|---|
| 2502 | ! |
|---|
| 2503 | ! determine level with largest moist static energy within pbl |
|---|
| 2504 | ! this is the level where updraft starts |
|---|
| 2505 | ! |
|---|
| 2506 | do i=its,ite |
|---|
| 2507 | if (cnvflg(i)) then |
|---|
| 2508 | hmax(i) = heo(i,1) |
|---|
| 2509 | kb(i) = 1 |
|---|
| 2510 | endif |
|---|
| 2511 | enddo |
|---|
| 2512 | ! |
|---|
| 2513 | do k = kts+1, kte |
|---|
| 2514 | do i=its,ite |
|---|
| 2515 | if (cnvflg(i).and.k.le.kpbl(i)) then |
|---|
| 2516 | if(heo(i,k).gt.hmax(i)) then |
|---|
| 2517 | kb(i) = k |
|---|
| 2518 | hmax(i) = heo(i,k) |
|---|
| 2519 | endif |
|---|
| 2520 | endif |
|---|
| 2521 | enddo |
|---|
| 2522 | enddo |
|---|
| 2523 | ! |
|---|
| 2524 | do k = kts, km1 |
|---|
| 2525 | do i=its,ite |
|---|
| 2526 | if (cnvflg(i) .and. k .le. kmax(i)-1) then |
|---|
| 2527 | dz = .5 * (zl(i,k+1) - zl(i,k)) |
|---|
| 2528 | dp = .5 * (p(i,k+1) - p(i,k)) |
|---|
| 2529 | es = 0.01*fpvs(to(i,k+1),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 2530 | pprime = p(i,k+1) + (eps-1.) * es |
|---|
| 2531 | qs = eps * es / pprime |
|---|
| 2532 | dqsdp = - qs / pprime |
|---|
| 2533 | desdt = es * (fact1 / to(i,k+1) + fact2 / (to(i,k+1)**2)) |
|---|
| 2534 | dqsdt = qs * p(i,k+1) * desdt / (es * pprime) |
|---|
| 2535 | gamma = el2orc * qeso(i,k+1) / (to(i,k+1)**2) |
|---|
| 2536 | dt = (g_ * dz + hvap_ * dqsdp * dp) / (cp_ * (1. + gamma)) |
|---|
| 2537 | dq = dqsdt * dt + dqsdp * dp |
|---|
| 2538 | to(i,k) = to(i,k+1) + dt |
|---|
| 2539 | qo(i,k) = qo(i,k+1) + dq |
|---|
| 2540 | po(i,k) = .5 * (p(i,k) + p(i,k+1)) |
|---|
| 2541 | endif |
|---|
| 2542 | enddo |
|---|
| 2543 | enddo |
|---|
| 2544 | ! |
|---|
| 2545 | do k = kts, km1 |
|---|
| 2546 | do i=its,ite |
|---|
| 2547 | if (cnvflg(i) .and. k .le. kmax(i)-1) then |
|---|
| 2548 | qeso(i,k)=0.01*fpvs(to(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 2549 | qeso(i,k) = eps * qeso(i,k) / (po(i,k) + (eps-1.) * qeso(i,k)) |
|---|
| 2550 | val1 = 1.e-8 |
|---|
| 2551 | qeso(i,k) = max(qeso(i,k), val1) |
|---|
| 2552 | val2 = 1.e-10 |
|---|
| 2553 | qo(i,k) = max(qo(i,k), val2 ) |
|---|
| 2554 | heo(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 2555 | cp_ * to(i,k) + hvap_ * qo(i,k) |
|---|
| 2556 | heso(i,k) = .5 * g_ * (zl(i,k) + zl(i,k+1)) + & |
|---|
| 2557 | cp_ * to(i,k) + hvap_ * qeso(i,k) |
|---|
| 2558 | uo(i,k) = .5 * (uo(i,k) + uo(i,k+1)) |
|---|
| 2559 | vo(i,k) = .5 * (vo(i,k) + vo(i,k+1)) |
|---|
| 2560 | endif |
|---|
| 2561 | enddo |
|---|
| 2562 | enddo |
|---|
| 2563 | ! |
|---|
| 2564 | ! look for the level of free convection as cloud base |
|---|
| 2565 | ! |
|---|
| 2566 | do i=its,ite |
|---|
| 2567 | flg(i) = cnvflg(i) |
|---|
| 2568 | if(flg(i)) kbcon(i) = kmax(i) |
|---|
| 2569 | enddo |
|---|
| 2570 | ! |
|---|
| 2571 | do k = kts+1, km1 |
|---|
| 2572 | do i=its,ite |
|---|
| 2573 | if (flg(i).and.k.lt.kbm(i)) then |
|---|
| 2574 | if(k.gt.kb(i).and.heo(i,kb(i)).gt.heso(i,k)) then |
|---|
| 2575 | kbcon(i) = k |
|---|
| 2576 | flg(i) = .false. |
|---|
| 2577 | endif |
|---|
| 2578 | endif |
|---|
| 2579 | enddo |
|---|
| 2580 | enddo |
|---|
| 2581 | ! |
|---|
| 2582 | do i=its,ite |
|---|
| 2583 | if(cnvflg(i)) then |
|---|
| 2584 | if(kbcon(i).eq.kmax(i)) cnvflg(i) = .false. |
|---|
| 2585 | endif |
|---|
| 2586 | enddo |
|---|
| 2587 | ! |
|---|
| 2588 | totflg = .true. |
|---|
| 2589 | do i=its,ite |
|---|
| 2590 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 2591 | enddo |
|---|
| 2592 | if(totflg) return |
|---|
| 2593 | ! |
|---|
| 2594 | ! determine critical convective inhibition |
|---|
| 2595 | ! as a function of vertical velocity at cloud base. |
|---|
| 2596 | ! |
|---|
| 2597 | do i=its,ite |
|---|
| 2598 | if(cnvflg(i)) then |
|---|
| 2599 | pdot(i) = 10.* dot(i,kbcon(i)) |
|---|
| 2600 | endif |
|---|
| 2601 | enddo |
|---|
| 2602 | ! |
|---|
| 2603 | do i=its,ite |
|---|
| 2604 | if(cnvflg(i)) then |
|---|
| 2605 | if(slimsk(i).eq.1.) then |
|---|
| 2606 | w1 = w1l |
|---|
| 2607 | w2 = w2l |
|---|
| 2608 | w3 = w3l |
|---|
| 2609 | w4 = w4l |
|---|
| 2610 | else |
|---|
| 2611 | w1 = w1s |
|---|
| 2612 | w2 = w2s |
|---|
| 2613 | w3 = w3s |
|---|
| 2614 | w4 = w4s |
|---|
| 2615 | endif |
|---|
| 2616 | if(pdot(i).le.w4) then |
|---|
| 2617 | ptem = (pdot(i) - w4) / (w3 - w4) |
|---|
| 2618 | elseif(pdot(i).ge.-w4) then |
|---|
| 2619 | ptem = - (pdot(i) + w4) / (w4 - w3) |
|---|
| 2620 | else |
|---|
| 2621 | ptem = 0. |
|---|
| 2622 | endif |
|---|
| 2623 | val1 = -1. |
|---|
| 2624 | ptem = max(ptem,val1) |
|---|
| 2625 | val2 = 1. |
|---|
| 2626 | ptem = min(ptem,val2) |
|---|
| 2627 | ptem = 1. - ptem |
|---|
| 2628 | ptem1= .5*(cincrmax-cincrmin) |
|---|
| 2629 | cincr = cincrmax - ptem * ptem1 |
|---|
| 2630 | tem1 = p(i,kb(i)) - p(i,kbcon(i)) |
|---|
| 2631 | if(tem1.gt.cincr) then |
|---|
| 2632 | cnvflg(i) = .false. |
|---|
| 2633 | endif |
|---|
| 2634 | endif |
|---|
| 2635 | enddo |
|---|
| 2636 | ! |
|---|
| 2637 | totflg = .true. |
|---|
| 2638 | do i=its,ite |
|---|
| 2639 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 2640 | enddo |
|---|
| 2641 | if(totflg) return |
|---|
| 2642 | ! |
|---|
| 2643 | ! assume the detrainment rate for the updrafts to be same as |
|---|
| 2644 | ! the entrainment rate at cloud base |
|---|
| 2645 | ! |
|---|
| 2646 | do i = its,ite |
|---|
| 2647 | if(cnvflg(i)) then |
|---|
| 2648 | xlamud(i) = xlamue(i,kbcon(i)) |
|---|
| 2649 | endif |
|---|
| 2650 | enddo |
|---|
| 2651 | ! |
|---|
| 2652 | ! determine updraft mass flux for the subcloud layers |
|---|
| 2653 | ! |
|---|
| 2654 | do k = km1, kts, -1 |
|---|
| 2655 | do i = its,ite |
|---|
| 2656 | if (cnvflg(i)) then |
|---|
| 2657 | if(k.lt.kbcon(i).and.k.ge.kb(i)) then |
|---|
| 2658 | dz = zi(i,k+1) - zi(i,k) |
|---|
| 2659 | ptem = 0.5*(xlamue(i,k)+xlamue(i,k+1))-xlamud(i) |
|---|
| 2660 | eta(i,k) = eta(i,k+1) / (1. + ptem * dz) |
|---|
| 2661 | endif |
|---|
| 2662 | endif |
|---|
| 2663 | enddo |
|---|
| 2664 | enddo |
|---|
| 2665 | ! |
|---|
| 2666 | ! compute mass flux above cloud base |
|---|
| 2667 | ! |
|---|
| 2668 | do k = kts+1, km1 |
|---|
| 2669 | do i = its,ite |
|---|
| 2670 | if(cnvflg(i))then |
|---|
| 2671 | if(k.gt.kbcon(i).and.k.lt.kmax(i)) then |
|---|
| 2672 | dz = zi(i,k) - zi(i,k-1) |
|---|
| 2673 | ptem = 0.5*(xlamue(i,k)+xlamue(i,k-1))-xlamud(i) |
|---|
| 2674 | eta(i,k) = eta(i,k-1) * (1 + ptem * dz) |
|---|
| 2675 | endif |
|---|
| 2676 | endif |
|---|
| 2677 | enddo |
|---|
| 2678 | enddo |
|---|
| 2679 | ! |
|---|
| 2680 | ! compute updraft cloud property |
|---|
| 2681 | ! |
|---|
| 2682 | do i = its,ite |
|---|
| 2683 | if(cnvflg(i)) then |
|---|
| 2684 | indx = kb(i) |
|---|
| 2685 | hcko(i,indx) = heo(i,indx) |
|---|
| 2686 | ucko(i,indx) = uo(i,indx) |
|---|
| 2687 | vcko(i,indx) = vo(i,indx) |
|---|
| 2688 | endif |
|---|
| 2689 | enddo |
|---|
| 2690 | ! |
|---|
| 2691 | do k = kts+1, km1 |
|---|
| 2692 | do i = its,ite |
|---|
| 2693 | if (cnvflg(i)) then |
|---|
| 2694 | if(k.gt.kb(i).and.k.lt.kmax(i)) then |
|---|
| 2695 | dz = zi(i,k) - zi(i,k-1) |
|---|
| 2696 | tem = 0.5 * (xlamue(i,k)+xlamue(i,k-1)) * dz |
|---|
| 2697 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 2698 | factor = 1. + tem - tem1 |
|---|
| 2699 | ptem = 0.5 * tem + pgcon |
|---|
| 2700 | ptem1= 0.5 * tem - pgcon |
|---|
| 2701 | hcko(i,k) = ((1.-tem1)*hcko(i,k-1)+tem*0.5* & |
|---|
| 2702 | (heo(i,k)+heo(i,k-1)))/factor |
|---|
| 2703 | ucko(i,k) = ((1.-tem1)*ucko(i,k-1)+ptem*uo(i,k) & |
|---|
| 2704 | +ptem1*uo(i,k-1))/factor |
|---|
| 2705 | vcko(i,k) = ((1.-tem1)*vcko(i,k-1)+ptem*vo(i,k) & |
|---|
| 2706 | +ptem1*vo(i,k-1))/factor |
|---|
| 2707 | dbyo(i,k) = hcko(i,k) - heso(i,k) |
|---|
| 2708 | endif |
|---|
| 2709 | endif |
|---|
| 2710 | enddo |
|---|
| 2711 | enddo |
|---|
| 2712 | ! |
|---|
| 2713 | ! taking account into convection inhibition due to existence of |
|---|
| 2714 | ! dry layers below cloud base |
|---|
| 2715 | ! |
|---|
| 2716 | do i=its,ite |
|---|
| 2717 | flg(i) = cnvflg(i) |
|---|
| 2718 | kbcon1(i) = kmax(i) |
|---|
| 2719 | enddo |
|---|
| 2720 | ! |
|---|
| 2721 | do k = kts+1, km1 |
|---|
| 2722 | do i=its,ite |
|---|
| 2723 | if (flg(i).and.k.lt.kbm(i)) then |
|---|
| 2724 | if(k.ge.kbcon(i).and.dbyo(i,k).gt.0.) then |
|---|
| 2725 | kbcon1(i) = k |
|---|
| 2726 | flg(i) = .false. |
|---|
| 2727 | endif |
|---|
| 2728 | endif |
|---|
| 2729 | enddo |
|---|
| 2730 | enddo |
|---|
| 2731 | ! |
|---|
| 2732 | do i=its,ite |
|---|
| 2733 | if(cnvflg(i)) then |
|---|
| 2734 | if(kbcon1(i).eq.kmax(i)) cnvflg(i) = .false. |
|---|
| 2735 | endif |
|---|
| 2736 | enddo |
|---|
| 2737 | ! |
|---|
| 2738 | do i=its,ite |
|---|
| 2739 | if(cnvflg(i)) then |
|---|
| 2740 | tem = p(i,kbcon(i)) - p(i,kbcon1(i)) |
|---|
| 2741 | if(tem.gt.dthk) then |
|---|
| 2742 | cnvflg(i) = .false. |
|---|
| 2743 | endif |
|---|
| 2744 | endif |
|---|
| 2745 | enddo |
|---|
| 2746 | ! |
|---|
| 2747 | totflg = .true. |
|---|
| 2748 | do i = its,ite |
|---|
| 2749 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 2750 | enddo |
|---|
| 2751 | if(totflg) return |
|---|
| 2752 | ! |
|---|
| 2753 | ! determine first guess cloud top as the level of zero buoyancy |
|---|
| 2754 | ! limited to the level of sigma=0.7 |
|---|
| 2755 | ! |
|---|
| 2756 | do i = its,ite |
|---|
| 2757 | flg(i) = cnvflg(i) |
|---|
| 2758 | if(flg(i)) ktcon(i) = kbm(i) |
|---|
| 2759 | enddo |
|---|
| 2760 | ! |
|---|
| 2761 | do k = kts+1, km1 |
|---|
| 2762 | do i=its,ite |
|---|
| 2763 | if (flg(i).and.k .lt. kbm(i)) then |
|---|
| 2764 | if(k.gt.kbcon1(i).and.dbyo(i,k).lt.0.) then |
|---|
| 2765 | ktcon(i) = k |
|---|
| 2766 | flg(i) = .false. |
|---|
| 2767 | endif |
|---|
| 2768 | endif |
|---|
| 2769 | enddo |
|---|
| 2770 | enddo |
|---|
| 2771 | ! |
|---|
| 2772 | ! specify upper limit of mass flux at cloud base |
|---|
| 2773 | ! |
|---|
| 2774 | do i = its,ite |
|---|
| 2775 | if(cnvflg(i)) then |
|---|
| 2776 | k = kbcon(i) |
|---|
| 2777 | dp = 1000. * del(i,k) |
|---|
| 2778 | xmbmax(i) = dp / (g_ * dt2) |
|---|
| 2779 | endif |
|---|
| 2780 | enddo |
|---|
| 2781 | ! |
|---|
| 2782 | ! compute cloud moisture property and precipitation |
|---|
| 2783 | ! |
|---|
| 2784 | do i = its,ite |
|---|
| 2785 | if (cnvflg(i)) then |
|---|
| 2786 | aa1(i) = 0. |
|---|
| 2787 | qcko(i,kb(i)) = qo(i,kb(i)) |
|---|
| 2788 | endif |
|---|
| 2789 | enddo |
|---|
| 2790 | ! |
|---|
| 2791 | do k = kts+1, km1 |
|---|
| 2792 | do i = its,ite |
|---|
| 2793 | if (cnvflg(i)) then |
|---|
| 2794 | if(k.gt.kb(i).and.k.lt.ktcon(i)) then |
|---|
| 2795 | dz = zi(i,k) - zi(i,k-1) |
|---|
| 2796 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 2797 | qrch = qeso(i,k) & |
|---|
| 2798 | + gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 2799 | tem = 0.5 * (xlamue(i,k)+xlamue(i,k-1)) * dz |
|---|
| 2800 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 2801 | factor = 1. + tem - tem1 |
|---|
| 2802 | qcko(i,k) = ((1.-tem1)*qcko(i,k-1)+tem*0.5* & |
|---|
| 2803 | (qo(i,k)+qo(i,k-1)))/factor |
|---|
| 2804 | dq = eta(i,k) * (qcko(i,k) - qrch) |
|---|
| 2805 | ! |
|---|
| 2806 | ! rhbar(i) = rhbar(i) + qo(i,k) / qeso(i,k) |
|---|
| 2807 | ! |
|---|
| 2808 | ! below lfc check if there is excess moisture to release latent heat |
|---|
| 2809 | ! |
|---|
| 2810 | if(k.ge.kbcon(i).and.dq.gt.0.) then |
|---|
| 2811 | etah = .5 * (eta(i,k) + eta(i,k-1)) |
|---|
| 2812 | if(ncloud.gt.0) then |
|---|
| 2813 | dp = 1000. * del(i,k) |
|---|
| 2814 | qlk = dq / (eta(i,k) + etah * (c0 + c1) * dz) |
|---|
| 2815 | dellal(i,k) = etah * c1 * dz * qlk * g_ / dp |
|---|
| 2816 | else |
|---|
| 2817 | qlk = dq / (eta(i,k) + etah * c0 * dz) |
|---|
| 2818 | endif |
|---|
| 2819 | aa1(i) = aa1(i) - dz * g_ * qlk |
|---|
| 2820 | qcko(i,k)= qlk + qrch |
|---|
| 2821 | pwo(i,k) = etah * c0 * dz * qlk |
|---|
| 2822 | endif |
|---|
| 2823 | endif |
|---|
| 2824 | endif |
|---|
| 2825 | enddo |
|---|
| 2826 | enddo |
|---|
| 2827 | ! |
|---|
| 2828 | ! calculate cloud work function |
|---|
| 2829 | ! |
|---|
| 2830 | do k = kts+1, km1 |
|---|
| 2831 | do i = its,ite |
|---|
| 2832 | if (cnvflg(i)) then |
|---|
| 2833 | if(k.ge.kbcon(i).and.k.lt.ktcon(i)) then |
|---|
| 2834 | dz1 = zl(i,k+1) - zl(i,k) |
|---|
| 2835 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 2836 | rfact = 1. + fv_ * cp_ * gamma & |
|---|
| 2837 | * to(i,k) / hvap_ |
|---|
| 2838 | aa1(i) = aa1(i) + dz1 * (g_ / (cp_ * to(i,k))) & |
|---|
| 2839 | * dbyo(i,k) / (1. + gamma) * rfact |
|---|
| 2840 | val = 0. |
|---|
| 2841 | aa1(i)=aa1(i)+ dz1 * g_ * fv_ * & |
|---|
| 2842 | max(val,(qeso(i,k) - qo(i,k))) |
|---|
| 2843 | endif |
|---|
| 2844 | endif |
|---|
| 2845 | enddo |
|---|
| 2846 | enddo |
|---|
| 2847 | ! |
|---|
| 2848 | do i = its,ite |
|---|
| 2849 | if(cnvflg(i).and.aa1(i).le.0.) cnvflg(i) = .false. |
|---|
| 2850 | enddo |
|---|
| 2851 | ! |
|---|
| 2852 | totflg = .true. |
|---|
| 2853 | do i=its,ite |
|---|
| 2854 | totflg = totflg .and. (.not. cnvflg(i)) |
|---|
| 2855 | enddo |
|---|
| 2856 | if(totflg) return |
|---|
| 2857 | ! |
|---|
| 2858 | ! estimate the convective overshooting as the level |
|---|
| 2859 | ! where the [aafac * cloud work function] becomes zero, |
|---|
| 2860 | ! which is the final cloud top limited to the level of sigma=0.7 |
|---|
| 2861 | ! |
|---|
| 2862 | do i = its,ite |
|---|
| 2863 | if (cnvflg(i)) then |
|---|
| 2864 | aa1(i) = aafac * aa1(i) |
|---|
| 2865 | endif |
|---|
| 2866 | enddo |
|---|
| 2867 | ! |
|---|
| 2868 | do i = its,ite |
|---|
| 2869 | flg(i) = cnvflg(i) |
|---|
| 2870 | ktcon1(i) = kbm(i) |
|---|
| 2871 | enddo |
|---|
| 2872 | ! |
|---|
| 2873 | do k = kts+1, km1 |
|---|
| 2874 | do i = its,ite |
|---|
| 2875 | if (flg(i)) then |
|---|
| 2876 | if(k.ge.ktcon(i).and.k.lt.kbm(i)) then |
|---|
| 2877 | dz1 = zl(i,k+1) - zl(i,k) |
|---|
| 2878 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 2879 | rfact = 1. + fv_ * cp_ * gamma & |
|---|
| 2880 | * to(i,k) / hvap_ |
|---|
| 2881 | aa1(i) = aa1(i) + & |
|---|
| 2882 | dz1 * (g_ / (cp_ * to(i,k))) & |
|---|
| 2883 | * dbyo(i,k) / (1. + gamma) * rfact |
|---|
| 2884 | if(aa1(i).lt.0.) then |
|---|
| 2885 | ktcon1(i) = k |
|---|
| 2886 | flg(i) = .false. |
|---|
| 2887 | endif |
|---|
| 2888 | endif |
|---|
| 2889 | endif |
|---|
| 2890 | enddo |
|---|
| 2891 | enddo |
|---|
| 2892 | ! |
|---|
| 2893 | ! compute cloud moisture property, detraining cloud water |
|---|
| 2894 | ! and precipitation in overshooting layers |
|---|
| 2895 | ! |
|---|
| 2896 | do k = kts+1, km1 |
|---|
| 2897 | do i = its,ite |
|---|
| 2898 | if (cnvflg(i)) then |
|---|
| 2899 | if(k.ge.ktcon(i).and.k.lt.ktcon1(i)) then |
|---|
| 2900 | dz = zi(i,k) - zi(i,k-1) |
|---|
| 2901 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 2902 | qrch = qeso(i,k) & |
|---|
| 2903 | + gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 2904 | tem = 0.5 * (xlamue(i,k)+xlamue(i,k-1)) * dz |
|---|
| 2905 | tem1 = 0.5 * xlamud(i) * dz |
|---|
| 2906 | factor = 1. + tem - tem1 |
|---|
| 2907 | qcko(i,k) = ((1.-tem1)*qcko(i,k-1)+tem*0.5* & |
|---|
| 2908 | (qo(i,k)+qo(i,k-1)))/factor |
|---|
| 2909 | dq = eta(i,k) * (qcko(i,k) - qrch) |
|---|
| 2910 | ! |
|---|
| 2911 | ! check if there is excess moisture to release latent heat |
|---|
| 2912 | ! |
|---|
| 2913 | if(dq.gt.0.) then |
|---|
| 2914 | etah = .5 * (eta(i,k) + eta(i,k-1)) |
|---|
| 2915 | if(ncloud.gt.0) then |
|---|
| 2916 | dp = 1000. * del(i,k) |
|---|
| 2917 | qlk = dq / (eta(i,k) + etah * (c0 + c1) * dz) |
|---|
| 2918 | dellal(i,k) = etah * c1 * dz * qlk * g_ / dp |
|---|
| 2919 | else |
|---|
| 2920 | qlk = dq / (eta(i,k) + etah * c0 * dz) |
|---|
| 2921 | endif |
|---|
| 2922 | qcko(i,k) = qlk + qrch |
|---|
| 2923 | pwo(i,k) = etah * c0 * dz * qlk |
|---|
| 2924 | endif |
|---|
| 2925 | endif |
|---|
| 2926 | endif |
|---|
| 2927 | enddo |
|---|
| 2928 | enddo |
|---|
| 2929 | ! |
|---|
| 2930 | ! exchange ktcon with ktcon1 |
|---|
| 2931 | ! |
|---|
| 2932 | do i = its,ite |
|---|
| 2933 | if(cnvflg(i)) then |
|---|
| 2934 | kk = ktcon(i) |
|---|
| 2935 | ktcon(i) = ktcon1(i) |
|---|
| 2936 | ktcon1(i) = kk |
|---|
| 2937 | endif |
|---|
| 2938 | enddo |
|---|
| 2939 | ! |
|---|
| 2940 | ! this section is ready for cloud water |
|---|
| 2941 | ! |
|---|
| 2942 | if(ncloud.gt.0) then |
|---|
| 2943 | ! |
|---|
| 2944 | ! compute liquid and vapor separation at cloud top |
|---|
| 2945 | ! |
|---|
| 2946 | do i = its,ite |
|---|
| 2947 | if(cnvflg(i)) then |
|---|
| 2948 | k = ktcon(i) - 1 |
|---|
| 2949 | gamma = el2orc * qeso(i,k) / (to(i,k)**2) |
|---|
| 2950 | qrch = qeso(i,k) & |
|---|
| 2951 | + gamma * dbyo(i,k) / (hvap_ * (1. + gamma)) |
|---|
| 2952 | dq = qcko(i,k) - qrch |
|---|
| 2953 | ! |
|---|
| 2954 | ! check if there is excess moisture to release latent heat |
|---|
| 2955 | ! |
|---|
| 2956 | if(dq.gt.0.) then |
|---|
| 2957 | qlko_ktcon(i) = dq |
|---|
| 2958 | qcko(i,k) = qrch |
|---|
| 2959 | endif |
|---|
| 2960 | endif |
|---|
| 2961 | enddo |
|---|
| 2962 | ! |
|---|
| 2963 | endif |
|---|
| 2964 | ! |
|---|
| 2965 | !--- compute precipitation efficiency in terms of windshear |
|---|
| 2966 | ! |
|---|
| 2967 | do i = its,ite |
|---|
| 2968 | if(cnvflg(i)) then |
|---|
| 2969 | vshear(i) = 0. |
|---|
| 2970 | endif |
|---|
| 2971 | enddo |
|---|
| 2972 | ! |
|---|
| 2973 | do k = kts+1,kte |
|---|
| 2974 | do i = its,ite |
|---|
| 2975 | if (cnvflg(i)) then |
|---|
| 2976 | if(k.gt.kb(i).and.k.le.ktcon(i)) then |
|---|
| 2977 | shear= sqrt((uo(i,k)-uo(i,k-1)) ** 2 & |
|---|
| 2978 | + (vo(i,k)-vo(i,k-1)) ** 2) |
|---|
| 2979 | vshear(i) = vshear(i) + shear |
|---|
| 2980 | endif |
|---|
| 2981 | endif |
|---|
| 2982 | enddo |
|---|
| 2983 | enddo |
|---|
| 2984 | ! |
|---|
| 2985 | do i = its,ite |
|---|
| 2986 | if(cnvflg(i)) then |
|---|
| 2987 | vshear(i) = 1.e3 * vshear(i) / (zi(i,ktcon(i))-zi(i,kb(i))) |
|---|
| 2988 | e1=1.591-.639*vshear(i) & |
|---|
| 2989 | +.0953*(vshear(i)**2)-.00496*(vshear(i)**3) |
|---|
| 2990 | edt(i)=1.-e1 |
|---|
| 2991 | val = .9 |
|---|
| 2992 | edt(i) = min(edt(i),val) |
|---|
| 2993 | val = .0 |
|---|
| 2994 | edt(i) = max(edt(i),val) |
|---|
| 2995 | endif |
|---|
| 2996 | enddo |
|---|
| 2997 | ! |
|---|
| 2998 | !--- what would the change be, that a cloud with unit mass |
|---|
| 2999 | !--- will do to the environment? |
|---|
| 3000 | ! |
|---|
| 3001 | do k = kts,kte |
|---|
| 3002 | do i = its,ite |
|---|
| 3003 | if(cnvflg(i) .and. k .le. kmax(i)) then |
|---|
| 3004 | dellah(i,k) = 0. |
|---|
| 3005 | dellaq(i,k) = 0. |
|---|
| 3006 | dellau(i,k) = 0. |
|---|
| 3007 | dellav(i,k) = 0. |
|---|
| 3008 | endif |
|---|
| 3009 | enddo |
|---|
| 3010 | enddo |
|---|
| 3011 | ! |
|---|
| 3012 | !--- changed due to subsidence and entrainment |
|---|
| 3013 | ! |
|---|
| 3014 | do k = kts+1, km1 |
|---|
| 3015 | do i = its,ite |
|---|
| 3016 | if (cnvflg(i)) then |
|---|
| 3017 | if(k.gt.kb(i).and.k.lt.ktcon(i)) then |
|---|
| 3018 | dp = 1000. * del(i,k) |
|---|
| 3019 | dz = zi(i,k) - zi(i,k-1) |
|---|
| 3020 | ! |
|---|
| 3021 | dv1h = heo(i,k) |
|---|
| 3022 | dv2h = .5 * (heo(i,k) + heo(i,k-1)) |
|---|
| 3023 | dv3h = heo(i,k-1) |
|---|
| 3024 | dv1q = qo(i,k) |
|---|
| 3025 | dv2q = .5 * (qo(i,k) + qo(i,k-1)) |
|---|
| 3026 | dv3q = qo(i,k-1) |
|---|
| 3027 | dv1u = uo(i,k) |
|---|
| 3028 | dv2u = .5 * (uo(i,k) + uo(i,k-1)) |
|---|
| 3029 | dv3u = uo(i,k-1) |
|---|
| 3030 | dv1v = vo(i,k) |
|---|
| 3031 | dv2v = .5 * (vo(i,k) + vo(i,k-1)) |
|---|
| 3032 | dv3v = vo(i,k-1) |
|---|
| 3033 | ! |
|---|
| 3034 | tem = 0.5 * (xlamue(i,k)+xlamue(i,k-1)) |
|---|
| 3035 | tem1 = xlamud(i) |
|---|
| 3036 | ! |
|---|
| 3037 | dellah(i,k) = dellah(i,k) + & |
|---|
| 3038 | ( eta(i,k)*dv1h - eta(i,k-1)*dv3h & |
|---|
| 3039 | - tem*eta(i,k-1)*dv2h*dz & |
|---|
| 3040 | + tem1*eta(i,k-1)*.5*(hcko(i,k)+hcko(i,k-1))*dz & |
|---|
| 3041 | ) *g_/dp |
|---|
| 3042 | ! |
|---|
| 3043 | dellaq(i,k) = dellaq(i,k) + & |
|---|
| 3044 | ( eta(i,k)*dv1q - eta(i,k-1)*dv3q & |
|---|
| 3045 | - tem*eta(i,k-1)*dv2q*dz & |
|---|
| 3046 | + tem1*eta(i,k-1)*.5*(qcko(i,k)+qcko(i,k-1))*dz & |
|---|
| 3047 | ) *g_/dp |
|---|
| 3048 | ! |
|---|
| 3049 | dellau(i,k) = dellau(i,k) + & |
|---|
| 3050 | ( eta(i,k)*dv1u - eta(i,k-1)*dv3u & |
|---|
| 3051 | - tem*eta(i,k-1)*dv2u*dz & |
|---|
| 3052 | + tem1*eta(i,k-1)*.5*(ucko(i,k)+ucko(i,k-1))*dz & |
|---|
| 3053 | - pgcon*eta(i,k-1)*(dv1u-dv3u) & |
|---|
| 3054 | ) *g_/dp |
|---|
| 3055 | ! |
|---|
| 3056 | dellav(i,k) = dellav(i,k) + & |
|---|
| 3057 | ( eta(i,k)*dv1v - eta(i,k-1)*dv3v & |
|---|
| 3058 | - tem*eta(i,k-1)*dv2v*dz & |
|---|
| 3059 | + tem1*eta(i,k-1)*.5*(vcko(i,k)+vcko(i,k-1))*dz & |
|---|
| 3060 | - pgcon*eta(i,k-1)*(dv1v-dv3v) & |
|---|
| 3061 | ) *g_/dp |
|---|
| 3062 | ! |
|---|
| 3063 | endif |
|---|
| 3064 | endif |
|---|
| 3065 | enddo |
|---|
| 3066 | enddo |
|---|
| 3067 | ! |
|---|
| 3068 | !------- cloud top |
|---|
| 3069 | ! |
|---|
| 3070 | do i = its,ite |
|---|
| 3071 | if(cnvflg(i)) then |
|---|
| 3072 | indx = ktcon(i) |
|---|
| 3073 | dp = 1000. * del(i,indx) |
|---|
| 3074 | dv1h = heo(i,indx-1) |
|---|
| 3075 | dellah(i,indx) = eta(i,indx-1) * & |
|---|
| 3076 | (hcko(i,indx-1) - dv1h) * g_ / dp |
|---|
| 3077 | dv1q = qo(i,indx-1) |
|---|
| 3078 | dellaq(i,indx) = eta(i,indx-1) * & |
|---|
| 3079 | (qcko(i,indx-1) - dv1q) * g_ / dp |
|---|
| 3080 | dv1u = uo(i,indx-1) |
|---|
| 3081 | dellau(i,indx) = eta(i,indx-1) * & |
|---|
| 3082 | (ucko(i,indx-1) - dv1u) * g_ / dp |
|---|
| 3083 | dv1v = vo(i,indx-1) |
|---|
| 3084 | dellav(i,indx) = eta(i,indx-1) * & |
|---|
| 3085 | (vcko(i,indx-1) - dv1v) * g_ / dp |
|---|
| 3086 | ! |
|---|
| 3087 | ! cloud water |
|---|
| 3088 | ! |
|---|
| 3089 | dellal(i,indx) = eta(i,indx-1) * & |
|---|
| 3090 | qlko_ktcon(i) * g_ / dp |
|---|
| 3091 | endif |
|---|
| 3092 | enddo |
|---|
| 3093 | ! |
|---|
| 3094 | ! mass flux at cloud base for shallow convection |
|---|
| 3095 | ! (Grant, 2001) |
|---|
| 3096 | ! |
|---|
| 3097 | do i= its,ite |
|---|
| 3098 | if(cnvflg(i)) then |
|---|
| 3099 | k = kbcon(i) |
|---|
| 3100 | ptem = g_*sflx(i)*hpbl(i)/t1(i,1) |
|---|
| 3101 | wstar(i) = ptem**h1 |
|---|
| 3102 | tem = po(i,k)*100. / (rd_*t1(i,k)) |
|---|
| 3103 | xmb(i) = betaw*tem*wstar(i) |
|---|
| 3104 | xmb(i) = min(xmb(i),xmbmax(i)) |
|---|
| 3105 | endif |
|---|
| 3106 | enddo |
|---|
| 3107 | ! |
|---|
| 3108 | do k = kts,kte |
|---|
| 3109 | do i = its,ite |
|---|
| 3110 | if (cnvflg(i) .and. k .le. kmax(i)) then |
|---|
| 3111 | qeso(i,k)=0.01* fpvs(t1(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls,psat,t0c_) |
|---|
| 3112 | qeso(i,k) = eps * qeso(i,k) / (p(i,k) + (eps-1.)*qeso(i,k)) |
|---|
| 3113 | val = 1.e-8 |
|---|
| 3114 | qeso(i,k) = max(qeso(i,k), val ) |
|---|
| 3115 | endif |
|---|
| 3116 | enddo |
|---|
| 3117 | enddo |
|---|
| 3118 | ! |
|---|
| 3119 | do i = its,ite |
|---|
| 3120 | delhbar(i) = 0. |
|---|
| 3121 | delqbar(i) = 0. |
|---|
| 3122 | deltbar(i) = 0. |
|---|
| 3123 | delubar(i) = 0. |
|---|
| 3124 | delvbar(i) = 0. |
|---|
| 3125 | qcond(i) = 0. |
|---|
| 3126 | enddo |
|---|
| 3127 | ! |
|---|
| 3128 | do k = kts,kte |
|---|
| 3129 | do i = its,ite |
|---|
| 3130 | if (cnvflg(i)) then |
|---|
| 3131 | if(k.gt.kb(i).and.k.le.ktcon(i)) then |
|---|
| 3132 | dellat = (dellah(i,k) - hvap_ * dellaq(i,k)) / cp_ |
|---|
| 3133 | t1(i,k) = t1(i,k) + dellat * xmb(i) * dt2 |
|---|
| 3134 | q1(i,k) = q1(i,k) + dellaq(i,k) * xmb(i) * dt2 |
|---|
| 3135 | tem = 1./rcs |
|---|
| 3136 | u1(i,k) = u1(i,k) + dellau(i,k) * xmb(i) * dt2 * tem |
|---|
| 3137 | v1(i,k) = v1(i,k) + dellav(i,k) * xmb(i) * dt2 * tem |
|---|
| 3138 | dp = 1000. * del(i,k) |
|---|
| 3139 | delhbar(i) = delhbar(i) + dellah(i,k)*xmb(i)*dp/g_ |
|---|
| 3140 | delqbar(i) = delqbar(i) + dellaq(i,k)*xmb(i)*dp/g_ |
|---|
| 3141 | deltbar(i) = deltbar(i) + dellat*xmb(i)*dp/g_ |
|---|
| 3142 | delubar(i) = delubar(i) + dellau(i,k)*xmb(i)*dp/g_ |
|---|
| 3143 | delvbar(i) = delvbar(i) + dellav(i,k)*xmb(i)*dp/g_ |
|---|
| 3144 | endif |
|---|
| 3145 | endif |
|---|
| 3146 | enddo |
|---|
| 3147 | enddo |
|---|
| 3148 | ! |
|---|
| 3149 | do k = kts,kte |
|---|
| 3150 | do i = its,ite |
|---|
| 3151 | if (cnvflg(i)) then |
|---|
| 3152 | if(k.gt.kb(i).and.k.le.ktcon(i)) then |
|---|
| 3153 | qeso(i,k)=0.01* fpvs(t1(i,k),1,rd_,rv_,cvap_,cliq_,cice,xlv0,xls & |
|---|
| 3154 | ,psat,t0c_) |
|---|
| 3155 | qeso(i,k) = eps * qeso(i,k)/(p(i,k) + (eps-1.)*qeso(i,k)) |
|---|
| 3156 | val = 1.e-8 |
|---|
| 3157 | qeso(i,k) = max(qeso(i,k), val ) |
|---|
| 3158 | endif |
|---|
| 3159 | endif |
|---|
| 3160 | enddo |
|---|
| 3161 | enddo |
|---|
| 3162 | ! |
|---|
| 3163 | do i = its,ite |
|---|
| 3164 | rntot(i) = 0. |
|---|
| 3165 | delqev(i) = 0. |
|---|
| 3166 | delq2(i) = 0. |
|---|
| 3167 | flg(i) = cnvflg(i) |
|---|
| 3168 | enddo |
|---|
| 3169 | ! |
|---|
| 3170 | do k = kte, kts, -1 |
|---|
| 3171 | do i = its,ite |
|---|
| 3172 | if (cnvflg(i)) then |
|---|
| 3173 | if(k.lt.ktcon(i).and.k.gt.kb(i)) then |
|---|
| 3174 | rntot(i) = rntot(i) + pwo(i,k) * xmb(i) * .001 * dt2 |
|---|
| 3175 | endif |
|---|
| 3176 | endif |
|---|
| 3177 | enddo |
|---|
| 3178 | enddo |
|---|
| 3179 | ! |
|---|
| 3180 | ! evaporating rain |
|---|
| 3181 | ! |
|---|
| 3182 | do k = kte, kts, -1 |
|---|
| 3183 | do i = its,ite |
|---|
| 3184 | if (k .le. kmax(i)) then |
|---|
| 3185 | deltv(i) = 0. |
|---|
| 3186 | delq(i) = 0. |
|---|
| 3187 | qevap(i) = 0. |
|---|
| 3188 | if(cnvflg(i)) then |
|---|
| 3189 | if(k.lt.ktcon(i).and.k.gt.kb(i)) then |
|---|
| 3190 | rain(i) = rain(i) + pwo(i,k) * xmb(i) * .001 * dt2 |
|---|
| 3191 | endif |
|---|
| 3192 | endif |
|---|
| 3193 | if(flg(i).and.k.lt.ktcon(i)) then |
|---|
| 3194 | evef = edt(i) * evfact |
|---|
| 3195 | if(slimsk(i).eq.1.) evef=edt(i) * evfactl |
|---|
| 3196 | qcond(i) = evef * (q1(i,k) - qeso(i,k)) & |
|---|
| 3197 | / (1. + el2orc * qeso(i,k) / t1(i,k)**2) |
|---|
| 3198 | dp = 1000. * del(i,k) |
|---|
| 3199 | if(rain(i).gt.0..and.qcond(i).lt.0.) then |
|---|
| 3200 | qevap(i) = -qcond(i) * (1.-exp(-.32*sqrt(dt2*rain(i)))) |
|---|
| 3201 | qevap(i) = min(qevap(i), rain(i)*1000.*g_/dp) |
|---|
| 3202 | delq2(i) = delqev(i) + .001 * qevap(i) * dp / g_ |
|---|
| 3203 | endif |
|---|
| 3204 | if(rain(i).gt.0..and.qcond(i).lt.0..and. & |
|---|
| 3205 | delq2(i).gt.rntot(i)) then |
|---|
| 3206 | qevap(i) = 1000.* g_ * (rntot(i) - delqev(i)) / dp |
|---|
| 3207 | flg(i) = .false. |
|---|
| 3208 | endif |
|---|
| 3209 | if(rain(i).gt.0..and.qevap(i).gt.0.) then |
|---|
| 3210 | tem = .001 * dp / g_ |
|---|
| 3211 | tem1 = qevap(i) * tem |
|---|
| 3212 | if(tem1.gt.rain(i)) then |
|---|
| 3213 | qevap(i) = rain(i) / tem |
|---|
| 3214 | rain(i) = 0. |
|---|
| 3215 | else |
|---|
| 3216 | rain(i) = rain(i) - tem1 |
|---|
| 3217 | endif |
|---|
| 3218 | q1(i,k) = q1(i,k) + qevap(i) |
|---|
| 3219 | t1(i,k) = t1(i,k) - (hvap_/cp_) * qevap(i) |
|---|
| 3220 | deltv(i) = - (hvap_/cp_)*qevap(i)/dt2 |
|---|
| 3221 | delq(i) = + qevap(i)/dt2 |
|---|
| 3222 | delqev(i) = delqev(i) + .001*dp*qevap(i)/g_ |
|---|
| 3223 | endif |
|---|
| 3224 | dellaq(i,k) = dellaq(i,k) + delq(i) / xmb(i) |
|---|
| 3225 | delqbar(i) = delqbar(i) + delq(i)*dp/g_ |
|---|
| 3226 | deltbar(i) = deltbar(i) + deltv(i)*dp/g_ |
|---|
| 3227 | endif |
|---|
| 3228 | endif |
|---|
| 3229 | enddo |
|---|
| 3230 | enddo |
|---|
| 3231 | ! |
|---|
| 3232 | do i = its,ite |
|---|
| 3233 | if(cnvflg(i)) then |
|---|
| 3234 | if(rain(i).lt.0..or..not.flg(i)) rain(i) = 0. |
|---|
| 3235 | ktop(i) = ktcon(i) |
|---|
| 3236 | kbot(i) = kbcon(i) |
|---|
| 3237 | kuo(i) = 0 |
|---|
| 3238 | endif |
|---|
| 3239 | enddo |
|---|
| 3240 | ! |
|---|
| 3241 | ! cloud water |
|---|
| 3242 | ! |
|---|
| 3243 | if (ncloud.gt.0) then |
|---|
| 3244 | ! |
|---|
| 3245 | do k = kts, km1 |
|---|
| 3246 | do i = its,ite |
|---|
| 3247 | if (cnvflg(i)) then |
|---|
| 3248 | if (k.ge.kbcon(i).and.k.le.ktcon(i)) then |
|---|
| 3249 | tem = dellal(i,k) * xmb(i) * dt2 |
|---|
| 3250 | tem1 = max(0.0, min(1.0, (tcr-t1(i,k))*tcrf)) |
|---|
| 3251 | if (ncloud.ge.4) then |
|---|
| 3252 | qi2(i,k) = qi2(i,k) + tem * tem1 ! ice |
|---|
| 3253 | qc2(i,k) = qc2(i,k) + tem *(1.0-tem1) ! water |
|---|
| 3254 | else |
|---|
| 3255 | qc2(i,k) = qc2(i,k) + tem |
|---|
| 3256 | endif |
|---|
| 3257 | endif |
|---|
| 3258 | endif |
|---|
| 3259 | enddo |
|---|
| 3260 | enddo |
|---|
| 3261 | ! |
|---|
| 3262 | endif |
|---|
| 3263 | ! |
|---|
| 3264 | end subroutine nscv2d |
|---|
| 3265 | !------------------------------------------------------------------------------- |
|---|
| 3266 | ! |
|---|
| 3267 | END MODULE module_cu_nsas |
|---|
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