| 1 | SUBROUTINE watercloud(ngrid,nlay,ptimestep, |
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| 2 | & pplev,pplay,pdpsrf,pzlay,pt,pdt, |
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| 3 | & pq,pdq,pdqcloud,pdtcloud, |
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| 4 | & nq,tau,tauscaling,rdust,rice,nuice, |
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| 5 | & rsedcloud,rhocloud) |
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| 6 | ! to use 'getin' |
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| 7 | USE ioipsl_getincom |
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| 8 | USE updaterad |
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| 9 | USE comcstfi_h |
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| 10 | use tracer_mod, only: nqmx, igcm_h2o_vap, igcm_h2o_ice, |
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| 11 | & igcm_dust_mass, igcm_dust_number, |
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| 12 | & igcm_ccn_mass, igcm_ccn_number, |
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| 13 | & rho_dust, nuice_sed, nuice_ref |
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| 14 | use dimradmars_mod, only: naerkind |
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| 15 | IMPLICIT NONE |
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| 16 | |
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| 17 | |
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| 18 | c======================================================================= |
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| 19 | c Water-ice cloud formation |
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| 20 | c |
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| 21 | c Includes two different schemes: |
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| 22 | c - A simplified scheme (see simpleclouds.F) |
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| 23 | c - An improved microphysical scheme (see improvedclouds.F) |
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| 24 | c |
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| 25 | c There is a time loop specific to cloud formation |
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| 26 | c due to timescales smaller than the GCM integration timestep. |
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| 27 | c |
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| 28 | c Authors: Franck Montmessin, Francois Forget, Ehouarn Millour, |
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| 29 | c J.-B. Madeleine, Thomas Navarro |
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| 30 | c |
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| 31 | c 2004 - 2012 |
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| 32 | c======================================================================= |
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| 33 | |
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| 34 | c----------------------------------------------------------------------- |
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| 35 | c declarations: |
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| 36 | c ------------- |
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| 37 | |
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| 38 | #include "callkeys.h" |
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| 39 | |
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| 40 | c Inputs: |
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| 41 | c ------ |
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| 42 | |
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| 43 | INTEGER ngrid,nlay |
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| 44 | INTEGER nq ! nombre de traceurs |
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| 45 | REAL ptimestep ! pas de temps physique (s) |
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| 46 | REAL pplev(ngrid,nlay+1) ! pression aux inter-couches (Pa) |
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| 47 | REAL pplay(ngrid,nlay) ! pression au milieu des couches (Pa) |
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| 48 | REAL pdpsrf(ngrid) ! tendence surf pressure |
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| 49 | REAL pzlay(ngrid,nlay) ! altitude at the middle of the layers |
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| 50 | REAL pt(ngrid,nlay) ! temperature at the middle of the layers (K) |
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| 51 | REAL pdt(ngrid,nlay) ! tendence temperature des autres param. |
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| 52 | |
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| 53 | real pq(ngrid,nlay,nq) ! traceur (kg/kg) |
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| 54 | real pdq(ngrid,nlay,nq) ! tendence avant condensation (kg/kg.s-1) |
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| 55 | |
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| 56 | REAL tau(ngrid,naerkind) ! Column dust optical depth at each point |
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| 57 | REAL tauscaling(ngrid) ! Convertion factor for dust amount |
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| 58 | real rdust(ngrid,nlay) ! Dust geometric mean radius (m) |
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| 59 | |
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| 60 | c Outputs: |
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| 61 | c ------- |
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| 62 | |
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| 63 | real pdqcloud(ngrid,nlay,nq) ! tendence de la condensation H2O(kg/kg.s-1) |
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| 64 | REAL pdtcloud(ngrid,nlay) ! tendence temperature due |
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| 65 | ! a la chaleur latente |
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| 66 | |
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| 67 | REAL rice(ngrid,nlay) ! Ice mass mean radius (m) |
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| 68 | ! (r_c in montmessin_2004) |
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| 69 | REAL nuice(ngrid,nlay) ! Estimated effective variance |
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| 70 | ! of the size distribution |
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| 71 | real rsedcloud(ngrid,nlay) ! Cloud sedimentation radius |
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| 72 | real rhocloud(ngrid,nlay) ! Cloud density (kg.m-3) |
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| 73 | |
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| 74 | c local: |
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| 75 | c ------ |
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| 76 | |
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| 77 | ! for ice radius computation |
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| 78 | REAL Mo,No |
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| 79 | REAl ccntyp |
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| 80 | |
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| 81 | ! for time loop |
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| 82 | INTEGER microstep ! time subsampling step variable |
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| 83 | INTEGER imicro ! time subsampling for coupled water microphysics & sedimentation |
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| 84 | SAVE imicro |
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| 85 | REAL microtimestep ! integration timestep for coupled water microphysics & sedimentation |
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| 86 | SAVE microtimestep |
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| 87 | |
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| 88 | ! tendency given by clouds (inside the micro loop) |
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| 89 | REAL subpdqcloud(ngrid,nlay,nq) ! cf. pdqcloud |
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| 90 | REAL subpdtcloud(ngrid,nlay) ! cf. pdtcloud |
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| 91 | |
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| 92 | ! global tendency (clouds+physics) |
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| 93 | REAL subpdq(ngrid,nlay,nq) ! cf. pdqcloud |
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| 94 | REAL subpdt(ngrid,nlay) ! cf. pdtcloud |
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| 95 | |
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| 96 | ! no supersaturation when option supersat is false |
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| 97 | REAL zt(ngrid,nlay) ! local value of temperature |
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| 98 | REAL zqsat(ngrid,nlay) ! saturation |
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| 99 | |
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| 100 | INTEGER iq,ig,l |
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| 101 | LOGICAL,SAVE :: firstcall=.true. |
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| 102 | |
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| 103 | c ** un petit test de coherence |
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| 104 | c -------------------------- |
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| 105 | |
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| 106 | IF (firstcall) THEN |
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| 107 | |
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| 108 | if (nq.gt.nqmx) then |
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| 109 | write(*,*) 'stop in watercloud (nq.gt.nqmx)!' |
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| 110 | write(*,*) 'nq=',nq,' nqmx=',nqmx |
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| 111 | stop |
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| 112 | endif |
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| 113 | |
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| 114 | write(*,*) "watercloud: igcm_h2o_vap=",igcm_h2o_vap |
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| 115 | write(*,*) " igcm_h2o_ice=",igcm_h2o_ice |
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| 116 | |
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| 117 | write(*,*) "time subsampling for microphysic ?" |
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| 118 | #ifdef MESOSCALE |
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| 119 | imicro = 2 |
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| 120 | #else |
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| 121 | imicro = 30 |
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| 122 | #endif |
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| 123 | call getin("imicro",imicro) |
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| 124 | write(*,*)"imicro = ",imicro |
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| 125 | |
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| 126 | microtimestep = ptimestep/real(imicro) |
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| 127 | write(*,*)"Physical timestep is",ptimestep |
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| 128 | write(*,*)"Microphysics timestep is",microtimestep |
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| 129 | |
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| 130 | firstcall=.false. |
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| 131 | ENDIF ! of IF (firstcall) |
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| 132 | |
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| 133 | c-----Initialization |
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| 134 | subpdq(1:ngrid,1:nlay,1:nq) = 0 |
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| 135 | subpdt(1:ngrid,1:nlay) = 0 |
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| 136 | |
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| 137 | ! default value if no ice |
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| 138 | rhocloud(1:ngrid,1:nlay) = rho_dust |
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| 139 | |
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| 140 | |
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| 141 | |
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| 142 | c------------------------------------------------------------------ |
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| 143 | c Time subsampling for microphysics |
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| 144 | c------------------------------------------------------------------ |
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| 145 | DO microstep=1,imicro |
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| 146 | |
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| 147 | c------------------------------------------------------------------- |
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| 148 | c 1. Tendencies: |
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| 149 | c------------------ |
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| 150 | |
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| 151 | |
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| 152 | c------ Temperature tendency subpdt |
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| 153 | ! Each microtimestep we give the cloud scheme a stepped entry subpdt instead of pdt |
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| 154 | ! If imicro=1 subpdt is the same as pdt |
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| 155 | DO l=1,nlay |
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| 156 | DO ig=1,ngrid |
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| 157 | subpdt(ig,l) = subpdt(ig,l) |
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| 158 | & + pdt(ig,l) ! At each micro timestep we add pdt in order to have a stepped entry |
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| 159 | ENDDO |
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| 160 | ENDDO |
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| 161 | c------ Tracers tendencies subpdq |
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| 162 | c------ At each micro timestep we add pdq in order to have a stepped entry |
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| 163 | IF (microphys) THEN |
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| 164 | DO l=1,nlay |
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| 165 | DO ig=1,ngrid |
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| 166 | subpdq(ig,l,igcm_dust_mass) = |
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| 167 | & subpdq(ig,l,igcm_dust_mass) |
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| 168 | & + pdq(ig,l,igcm_dust_mass) |
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| 169 | subpdq(ig,l,igcm_dust_number) = |
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| 170 | & subpdq(ig,l,igcm_dust_number) |
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| 171 | & + pdq(ig,l,igcm_dust_number) |
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| 172 | subpdq(ig,l,igcm_ccn_mass) = |
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| 173 | & subpdq(ig,l,igcm_ccn_mass) |
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| 174 | & + pdq(ig,l,igcm_ccn_mass) |
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| 175 | subpdq(ig,l,igcm_ccn_number) = |
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| 176 | & subpdq(ig,l,igcm_ccn_number) |
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| 177 | & + pdq(ig,l,igcm_ccn_number) |
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| 178 | ENDDO |
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| 179 | ENDDO |
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| 180 | ENDIF |
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| 181 | DO l=1,nlay |
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| 182 | DO ig=1,ngrid |
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| 183 | subpdq(ig,l,igcm_h2o_ice) = |
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| 184 | & subpdq(ig,l,igcm_h2o_ice) |
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| 185 | & + pdq(ig,l,igcm_h2o_ice) |
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| 186 | subpdq(ig,l,igcm_h2o_vap) = |
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| 187 | & subpdq(ig,l,igcm_h2o_vap) |
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| 188 | & + pdq(ig,l,igcm_h2o_vap) |
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| 189 | ENDDO |
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| 190 | ENDDO |
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| 191 | |
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| 192 | |
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| 193 | c------------------------------------------------------------------- |
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| 194 | c 2. Main call to the different cloud schemes: |
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| 195 | c------------------------------------------------ |
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| 196 | IF (microphys) THEN |
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| 197 | CALL improvedclouds(ngrid,nlay,microtimestep, |
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| 198 | & pplay,pt,subpdt, |
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| 199 | & pq,subpdq,subpdqcloud,subpdtcloud, |
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| 200 | & nq,tauscaling) |
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| 201 | |
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| 202 | ELSE |
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| 203 | CALL simpleclouds(ngrid,nlay,microtimestep, |
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| 204 | & pplay,pzlay,pt,subpdt, |
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| 205 | & pq,subpdq,subpdqcloud,subpdtcloud, |
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| 206 | & nq,tau,rice) |
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| 207 | ENDIF |
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| 208 | |
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| 209 | |
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| 210 | c------------------------------------------------------------------- |
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| 211 | c 3. Updating tendencies after cloud scheme: |
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| 212 | c----------------------------------------------- |
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| 213 | |
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| 214 | IF (microphys) THEN |
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| 215 | DO l=1,nlay |
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| 216 | DO ig=1,ngrid |
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| 217 | subpdq(ig,l,igcm_dust_mass) = |
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| 218 | & subpdq(ig,l,igcm_dust_mass) |
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| 219 | & + subpdqcloud(ig,l,igcm_dust_mass) |
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| 220 | subpdq(ig,l,igcm_dust_number) = |
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| 221 | & subpdq(ig,l,igcm_dust_number) |
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| 222 | & + subpdqcloud(ig,l,igcm_dust_number) |
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| 223 | subpdq(ig,l,igcm_ccn_mass) = |
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| 224 | & subpdq(ig,l,igcm_ccn_mass) |
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| 225 | & + subpdqcloud(ig,l,igcm_ccn_mass) |
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| 226 | subpdq(ig,l,igcm_ccn_number) = |
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| 227 | & subpdq(ig,l,igcm_ccn_number) |
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| 228 | & + subpdqcloud(ig,l,igcm_ccn_number) |
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| 229 | ENDDO |
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| 230 | ENDDO |
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| 231 | ENDIF |
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| 232 | DO l=1,nlay |
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| 233 | DO ig=1,ngrid |
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| 234 | subpdq(ig,l,igcm_h2o_ice) = |
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| 235 | & subpdq(ig,l,igcm_h2o_ice) |
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| 236 | & + subpdqcloud(ig,l,igcm_h2o_ice) |
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| 237 | subpdq(ig,l,igcm_h2o_vap) = |
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| 238 | & subpdq(ig,l,igcm_h2o_vap) |
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| 239 | & + subpdqcloud(ig,l,igcm_h2o_vap) |
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| 240 | ENDDO |
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| 241 | ENDDO |
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| 242 | |
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| 243 | IF (activice) THEN |
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| 244 | DO l=1,nlay |
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| 245 | DO ig=1,ngrid |
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| 246 | subpdt(ig,l) = |
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| 247 | & subpdt(ig,l) + subpdtcloud(ig,l) |
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| 248 | ENDDO |
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| 249 | ENDDO |
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| 250 | ENDIF |
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| 251 | |
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| 252 | |
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| 253 | ENDDO ! of DO microstep=1,imicro |
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| 254 | |
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| 255 | c------------------------------------------------------------------- |
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| 256 | c 6. Compute final tendencies after time loop: |
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| 257 | c------------------------------------------------ |
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| 258 | |
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| 259 | c------ Temperature tendency pdtcloud |
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| 260 | DO l=1,nlay |
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| 261 | DO ig=1,ngrid |
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| 262 | pdtcloud(ig,l) = |
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| 263 | & subpdt(ig,l)/real(imicro)-pdt(ig,l) |
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| 264 | ENDDO |
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| 265 | ENDDO |
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| 266 | |
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| 267 | c------ Tracers tendencies pdqcloud |
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| 268 | DO l=1,nlay |
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| 269 | DO ig=1,ngrid |
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| 270 | pdqcloud(ig,l,igcm_h2o_ice) = |
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| 271 | & subpdq(ig,l,igcm_h2o_ice)/real(imicro) |
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| 272 | & - pdq(ig,l,igcm_h2o_ice) |
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| 273 | pdqcloud(ig,l,igcm_h2o_vap) = |
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| 274 | & subpdq(ig,l,igcm_h2o_vap)/real(imicro) |
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| 275 | & - pdq(ig,l,igcm_h2o_vap) |
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| 276 | ENDDO |
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| 277 | ENDDO |
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| 278 | |
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| 279 | IF(microphys) THEN |
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| 280 | DO l=1,nlay |
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| 281 | DO ig=1,ngrid |
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| 282 | pdqcloud(ig,l,igcm_ccn_mass) = |
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| 283 | & subpdq(ig,l,igcm_ccn_mass)/real(imicro) |
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| 284 | & - pdq(ig,l,igcm_ccn_mass) |
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| 285 | pdqcloud(ig,l,igcm_ccn_number) = |
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| 286 | & subpdq(ig,l,igcm_ccn_number)/real(imicro) |
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| 287 | & - pdq(ig,l,igcm_ccn_number) |
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| 288 | ENDDO |
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| 289 | ENDDO |
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| 290 | ENDIF |
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| 291 | |
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| 292 | IF(scavenging) THEN |
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| 293 | DO l=1,nlay |
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| 294 | DO ig=1,ngrid |
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| 295 | pdqcloud(ig,l,igcm_dust_mass) = |
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| 296 | & subpdq(ig,l,igcm_dust_mass)/real(imicro) |
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| 297 | & - pdq(ig,l,igcm_dust_mass) |
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| 298 | pdqcloud(ig,l,igcm_dust_number) = |
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| 299 | & subpdq(ig,l,igcm_dust_number)/real(imicro) |
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| 300 | & - pdq(ig,l,igcm_dust_number) |
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| 301 | ENDDO |
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| 302 | ENDDO |
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| 303 | ENDIF |
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| 304 | |
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| 305 | c------- Due to stepped entry, other processes tendencies can add up to negative values |
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| 306 | c------- Therefore, enforce positive values and conserve mass |
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| 307 | |
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| 308 | |
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| 309 | IF(microphys) THEN |
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| 310 | DO l=1,nlay |
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| 311 | DO ig=1,ngrid |
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| 312 | IF ((pq(ig,l,igcm_ccn_number) + |
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| 313 | & ptimestep* (pdq(ig,l,igcm_ccn_number) + |
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| 314 | & pdqcloud(ig,l,igcm_ccn_number)) .le. 1.) |
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| 315 | & .or. (pq(ig,l,igcm_ccn_mass) + |
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| 316 | & ptimestep* (pdq(ig,l,igcm_ccn_mass) + |
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| 317 | & pdqcloud(ig,l,igcm_ccn_mass)) .le. 1.e-20)) THEN |
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| 318 | pdqcloud(ig,l,igcm_ccn_number) = |
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| 319 | & - pq(ig,l,igcm_ccn_number)/ptimestep |
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| 320 | & - pdq(ig,l,igcm_ccn_number) + 1. |
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| 321 | pdqcloud(ig,l,igcm_dust_number) = |
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| 322 | & -pdqcloud(ig,l,igcm_ccn_number) |
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| 323 | pdqcloud(ig,l,igcm_ccn_mass) = |
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| 324 | & - pq(ig,l,igcm_ccn_mass)/ptimestep |
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| 325 | & - pdq(ig,l,igcm_ccn_mass) + 1.e-20 |
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| 326 | pdqcloud(ig,l,igcm_dust_mass) = |
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| 327 | & -pdqcloud(ig,l,igcm_ccn_mass) |
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| 328 | ENDIF |
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| 329 | ENDDO |
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| 330 | ENDDO |
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| 331 | ENDIF |
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| 332 | |
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| 333 | IF(scavenging) THEN |
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| 334 | DO l=1,nlay |
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| 335 | DO ig=1,ngrid |
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| 336 | IF ((pq(ig,l,igcm_dust_number) + |
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| 337 | & ptimestep* (pdq(ig,l,igcm_dust_number) + |
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| 338 | & pdqcloud(ig,l,igcm_dust_number)) .le. 1.) |
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| 339 | & .or. (pq(ig,l,igcm_dust_mass) + |
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| 340 | & ptimestep* (pdq(ig,l,igcm_dust_mass) + |
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| 341 | & pdqcloud(ig,l,igcm_dust_mass)) .le. 1.e-20)) THEN |
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| 342 | pdqcloud(ig,l,igcm_dust_number) = |
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| 343 | & - pq(ig,l,igcm_dust_number)/ptimestep |
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| 344 | & - pdq(ig,l,igcm_dust_number) + 1. |
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| 345 | pdqcloud(ig,l,igcm_ccn_number) = |
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| 346 | & -pdqcloud(ig,l,igcm_dust_number) |
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| 347 | pdqcloud(ig,l,igcm_dust_mass) = |
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| 348 | & - pq(ig,l,igcm_dust_mass)/ptimestep |
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| 349 | & - pdq(ig,l,igcm_dust_mass) + 1.e-20 |
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| 350 | pdqcloud(ig,l,igcm_ccn_mass) = |
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| 351 | & -pdqcloud(ig,l,igcm_dust_mass) |
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| 352 | ENDIF |
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| 353 | ENDDO |
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| 354 | ENDDO |
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| 355 | ENDIF |
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| 356 | |
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| 357 | DO l=1,nlay |
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| 358 | DO ig=1,ngrid |
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| 359 | IF (pq(ig,l,igcm_h2o_ice) + ptimestep* |
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| 360 | & (pdq(ig,l,igcm_h2o_ice) + pdqcloud(ig,l,igcm_h2o_ice)) |
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| 361 | & .le. 1.e-8) THEN |
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| 362 | pdqcloud(ig,l,igcm_h2o_ice) = |
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| 363 | & - pq(ig,l,igcm_h2o_ice)/ptimestep - pdq(ig,l,igcm_h2o_ice) |
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| 364 | pdqcloud(ig,l,igcm_h2o_vap) = -pdqcloud(ig,l,igcm_h2o_ice) |
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| 365 | ENDIF |
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| 366 | IF (pq(ig,l,igcm_h2o_vap) + ptimestep* |
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| 367 | & (pdq(ig,l,igcm_h2o_vap) + pdqcloud(ig,l,igcm_h2o_vap)) |
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| 368 | & .le. 1.e-8) THEN |
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| 369 | pdqcloud(ig,l,igcm_h2o_vap) = |
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| 370 | & - pq(ig,l,igcm_h2o_vap)/ptimestep - pdq(ig,l,igcm_h2o_vap) |
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| 371 | pdqcloud(ig,l,igcm_h2o_ice) = -pdqcloud(ig,l,igcm_h2o_vap) |
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| 372 | ENDIF |
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| 373 | ENDDO |
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| 374 | ENDDO |
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| 375 | |
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| 376 | |
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| 377 | c------Update the ice and dust particle size "rice" for output or photochemistry |
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| 378 | c------Only rsedcloud is used for the water cycle |
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| 379 | |
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| 380 | IF(scavenging) THEN |
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| 381 | DO l=1, nlay |
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| 382 | DO ig=1,ngrid |
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| 383 | |
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| 384 | call updaterdust( |
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| 385 | & pq(ig,l,igcm_dust_mass) + ! dust mass |
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| 386 | & (pdq(ig,l,igcm_dust_mass) + ! dust mass |
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| 387 | & pdqcloud(ig,l,igcm_dust_mass))*ptimestep, ! dust mass |
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| 388 | & pq(ig,l,igcm_dust_number) + ! dust number |
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| 389 | & (pdq(ig,l,igcm_dust_number) + ! dust number |
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| 390 | & pdqcloud(ig,l,igcm_dust_number))*ptimestep, ! dust number |
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| 391 | & rdust(ig,l)) |
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| 392 | |
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| 393 | ENDDO |
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| 394 | ENDDO |
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| 395 | ENDIF |
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| 396 | |
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| 397 | IF(microphys) THEN |
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| 398 | |
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| 399 | ! In case one does not want to allow supersatured water when using microphysics. |
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| 400 | ! Not done by default. |
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| 401 | IF(.not.supersat) THEN |
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| 402 | zt = pt + (pdt+pdtcloud)*ptimestep |
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| 403 | call watersat(ngrid*nlay,zt,pplay,zqsat) |
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| 404 | DO l=1, nlay |
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| 405 | DO ig=1,ngrid |
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| 406 | IF (pq(ig,l,igcm_h2o_vap) |
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| 407 | & + (pdq(ig,l,igcm_h2o_vap) + pdqcloud(ig,l,igcm_h2o_vap)) |
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| 408 | & * ptimestep .ge. zqsat(ig,l)) THEN |
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| 409 | pdqcloud(ig,l,igcm_h2o_vap) = |
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| 410 | & (zqsat(ig,l) - pq(ig,l,igcm_h2o_vap))/ptimestep |
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| 411 | & - pdq(ig,l,igcm_h2o_vap) |
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| 412 | pdqcloud(ig,l,igcm_h2o_ice) = |
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| 413 | & -pdqcloud(ig,l,igcm_h2o_vap) |
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| 414 | ! no need to correct ccn_number, updaterad can handle this properly. |
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| 415 | ENDIF |
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| 416 | ENDDO |
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| 417 | ENDDO |
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| 418 | ENDIF |
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| 419 | |
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| 420 | DO l=1, nlay |
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| 421 | DO ig=1,ngrid |
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| 422 | |
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| 423 | call updaterice_micro( |
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| 424 | & pq(ig,l,igcm_h2o_ice) + ! ice mass |
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| 425 | & (pdq(ig,l,igcm_h2o_ice) + ! ice mass |
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| 426 | & pdqcloud(ig,l,igcm_h2o_ice))*ptimestep, ! ice mass |
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| 427 | & pq(ig,l,igcm_ccn_mass) + ! ccn mass |
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| 428 | & (pdq(ig,l,igcm_ccn_mass) + ! ccn mass |
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| 429 | & pdqcloud(ig,l,igcm_ccn_mass))*ptimestep, ! ccn mass |
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| 430 | & pq(ig,l,igcm_ccn_number) + ! ccn number |
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| 431 | & (pdq(ig,l,igcm_ccn_number) + ! ccn number |
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| 432 | & pdqcloud(ig,l,igcm_ccn_number))*ptimestep, ! ccn number |
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| 433 | & tauscaling(ig),rice(ig,l),rhocloud(ig,l)) |
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| 434 | |
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| 435 | ENDDO |
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| 436 | ENDDO |
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| 437 | |
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| 438 | ELSE ! no microphys |
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| 439 | |
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| 440 | DO l=1,nlay |
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| 441 | DO ig=1,ngrid |
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| 442 | |
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| 443 | call updaterice_typ( |
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| 444 | & pq(ig,l,igcm_h2o_ice) + ! ice mass |
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| 445 | & (pdq(ig,l,igcm_h2o_ice) + ! ice mass |
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| 446 | & pdqcloud(ig,l,igcm_h2o_ice))*ptimestep, ! ice mass |
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| 447 | & tau(ig,1),pzlay(ig,l),rice(ig,l)) |
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| 448 | |
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| 449 | ENDDO |
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| 450 | ENDDO |
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| 451 | |
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| 452 | ENDIF ! of IF(microphys) |
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| 453 | |
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| 454 | |
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| 455 | |
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| 456 | c A correction if a lot of subliming CO2 fills the 1st layer FF04/2005 |
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| 457 | c ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 458 | c Then that should not affect the ice particle radius |
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| 459 | do ig=1,ngrid |
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| 460 | if(pdpsrf(ig)*ptimestep.gt.0.9*(pplev(ig,1)-pplev(ig,2)))then |
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| 461 | if(pdpsrf(ig)*ptimestep.gt.0.9*(pplev(ig,1)-pplev(ig,3))) |
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| 462 | & rice(ig,2)=rice(ig,3) |
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| 463 | rice(ig,1)=rice(ig,2) |
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| 464 | end if |
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| 465 | end do |
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| 466 | |
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| 467 | |
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| 468 | DO l=1,nlay |
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| 469 | DO ig=1,ngrid |
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| 470 | rsedcloud(ig,l)=max(rice(ig,l)* |
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| 471 | & (1.+nuice_sed)*(1.+nuice_sed)*(1.+nuice_sed), |
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| 472 | & rdust(ig,l)) |
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| 473 | ! rsedcloud(ig,l)=min(rsedcloud(ig,l),1.e-4) |
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| 474 | ENDDO |
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| 475 | ENDDO |
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| 476 | |
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| 477 | ! used for rad. transfer calculations |
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| 478 | ! nuice is constant because a lognormal distribution is prescribed |
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| 479 | nuice(1:ngrid,1:nlay)=nuice_ref |
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| 480 | |
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| 481 | |
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| 482 | |
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| 483 | c======================================================================= |
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| 484 | |
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| 485 | END |
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| 486 | |
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