| 1 | MODULE rocketduststorm_mod |
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| 2 | |
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| 3 | IMPLICIT NONE |
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| 4 | |
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| 5 | REAL, SAVE, ALLOCATABLE :: dustliftday(:) ! dust lifting rate (s-1) |
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| 6 | |
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| 7 | CONTAINS |
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| 8 | |
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| 9 | !======================================================================= |
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| 10 | ! ROCKET DUST STORM - vertical transport and detrainment |
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| 11 | !======================================================================= |
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| 12 | ! calculation of the vertical flux |
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| 13 | ! call of vl_storm : Van Leer transport scheme of the dust tracers |
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| 14 | ! detrainement of stormdust in the background dust |
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| 15 | ! ----------------------------------------------------------------------- |
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| 16 | ! Authors: M. Vals; C. Wang; F. Forget; T. Bertrand |
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| 17 | ! Institution: Laboratoire de Meteorologie Dynamique (LMD) Paris, France |
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| 18 | ! ----------------------------------------------------------------------- |
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| 19 | |
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| 20 | SUBROUTINE rocketduststorm(ngrid,nlayer,nq,ptime,ptimestep, & |
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| 21 | pq,pdqfi,pt,pdtfi,pplev,pplay,pzlev, & |
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| 22 | pzlay,pdtsw,pdtlw, & |
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| 23 | ! input for radiative transfer |
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| 24 | clearatm,icount,zday,zls, & |
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| 25 | tsurf,igout,totstormfract, & |
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| 26 | ! input sub-grid scale cloud |
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| 27 | clearsky,totcloudfrac, & |
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| 28 | ! output |
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| 29 | pdqrds,wrad,dsodust,dsords) |
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| 30 | |
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| 31 | USE tracer_mod, only: igcm_stormdust_mass,igcm_stormdust_number & |
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| 32 | ,igcm_dust_mass,igcm_dust_number & |
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| 33 | ,rho_dust |
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| 34 | USE comcstfi_h, only: r,g,cpp,rcp |
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| 35 | USE dimradmars_mod, only: albedo,naerkind |
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| 36 | USE comsaison_h, only: dist_sol,mu0,fract |
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| 37 | USE surfdat_h, only: emis,co2ice,zmea, zstd, zsig, hmons |
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| 38 | USE callradite_mod |
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| 39 | IMPLICIT NONE |
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| 40 | |
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| 41 | !-------------------------------------------------------- |
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| 42 | ! Input Variables |
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| 43 | !-------------------------------------------------------- |
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| 44 | |
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| 45 | INTEGER, INTENT(IN) :: ngrid ! number of horizontal grid points |
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| 46 | INTEGER, INTENT(IN) :: nlayer ! number of vertical grid points |
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| 47 | INTEGER, INTENT(IN) :: nq ! number of tracer species |
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| 48 | REAL, INTENT(IN) :: ptime |
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| 49 | REAL, INTENT(IN) :: ptimestep |
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| 50 | |
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| 51 | REAL, INTENT(IN) :: pq(ngrid,nlayer,nq) ! advected field nq |
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| 52 | REAL, INTENT(IN) :: pdqfi(ngrid,nlayer,nq)! tendancy field pq |
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| 53 | REAL, INTENT(IN) :: pt(ngrid,nlayer) ! temperature at mid-layer (K) |
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| 54 | REAL, INTENT(IN) :: pdtfi(ngrid,nlayer) ! tendancy temperature at mid-layer (K) |
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| 55 | |
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| 56 | REAL, INTENT(IN) :: pplay(ngrid,nlayer) ! pressure at middle of the layers |
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| 57 | REAL, INTENT(IN) :: pplev(ngrid,nlayer+1) ! pressure at intermediate levels |
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| 58 | REAL, INTENT(IN) :: pzlay(ngrid,nlayer) ! altitude at the middle of the layers |
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| 59 | REAL, INTENT(IN) :: pzlev(ngrid,nlayer+1) ! altitude at layer boundaries |
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| 60 | |
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| 61 | REAL, INTENT(IN) :: pdtsw(ngrid,nlayer) ! (K/s) env |
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| 62 | REAL, INTENT(IN) :: pdtlw(ngrid,nlayer) ! (K/s) env |
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| 63 | |
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| 64 | ! input for second radiative transfer |
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| 65 | LOGICAL, INTENT(IN) :: clearatm |
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| 66 | INTEGER, INTENT(INOUT) :: icount |
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| 67 | REAL, INTENT(IN) :: zday |
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| 68 | REAL, INTENT(IN) :: zls |
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| 69 | REAL, INTENT(IN) :: tsurf(ngrid) |
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| 70 | INTEGER, INTENT(IN) :: igout |
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| 71 | REAL, INTENT(IN) :: totstormfract(ngrid) |
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| 72 | |
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| 73 | ! sbgrid scale water ice clouds |
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| 74 | logical, intent(in) :: clearsky |
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| 75 | real, intent(in) :: totcloudfrac(ngrid) |
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| 76 | |
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| 77 | !-------------------------------------------------------- |
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| 78 | ! Output Variables |
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| 79 | !-------------------------------------------------------- |
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| 80 | |
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| 81 | REAL, INTENT(OUT) :: pdqrds(ngrid,nlayer,nq) ! tendancy field for dust when detraining |
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| 82 | REAL, INTENT(OUT) :: wrad(ngrid,nlayer+1) ! vertical speed within the rocket dust storm |
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| 83 | REAL, INTENT(OUT) :: dsodust(ngrid,nlayer) ! density scaled opacity of env. dust |
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| 84 | REAL, INTENT(OUT) :: dsords(ngrid,nlayer) ! density scaled opacity of storm dust |
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| 85 | |
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| 86 | !-------------------------------------------------------- |
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| 87 | ! Local variables |
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| 88 | !-------------------------------------------------------- |
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| 89 | INTEGER l,ig,tsub,iq,ll |
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| 90 | ! local variables from callradite.F |
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| 91 | REAL zdtlw1(ngrid,nlayer) ! (K/s) storm |
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| 92 | REAL zdtsw1(ngrid,nlayer) ! (K/s) storm |
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| 93 | REAL zt(ngrid,nlayer) ! actual temperature at mid-layer (K) |
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| 94 | REAL zdtvert(ngrid,nlayer) ! dT/dz , lapse rate |
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| 95 | REAL ztlev(ngrid,nlayer) ! temperature at intermediate levels l+1/2 without last level |
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| 96 | |
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| 97 | REAL zdtlw1_lev(nlayer),zdtsw1_lev(nlayer) ! rad. heating rate at intermediate levels l+1/2 for stormdust |
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| 98 | REAL zdtlw_lev(nlayer),zdtsw_lev(nlayer) ! rad. heating rate at intermediate levels l+1/2 for background dust |
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| 99 | |
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| 100 | REAL zq_stormdust_mass(ngrid,nlayer) ! intermediate tracer stormdust mass |
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| 101 | REAL zq_stormdust_number(ngrid,nlayer) ! intermediate tracer stormdust number |
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| 102 | REAL zq_dust_mass(ngrid,nlayer) ! intermediate tracer dust mass |
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| 103 | REAL zq_dust_number(ngrid,nlayer) ! intermediate tracer dust number |
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| 104 | |
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| 105 | REAL mr_stormdust_mass(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (stormdust mass) |
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| 106 | REAL mr_stormdust_number(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (stormdust number) |
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| 107 | REAL mr_dust_mass(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (dust mass) |
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| 108 | REAL mr_dust_number(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (sdust number) |
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| 109 | |
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| 110 | REAL zq_vl_col(nlayer) ! column intermediate tracer used by Van Leer (number) |
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| 111 | REAL zn_vl_col(nlayer) ! column intermediate tracer used by Van Leer (mass) |
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| 112 | |
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| 113 | REAL dqvl_stormdust_mass(ngrid,nlayer) ! tendancy of vertical transport (stormdust mass) |
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| 114 | REAL dqvl_stormdust_number(ngrid,nlayer) ! tendancy of vertical transport (stormdust number) |
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| 115 | REAL dqvl_dust_mass(ngrid,nlayer) ! tendancy of vertical transport (dust mass) |
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| 116 | REAL dqvl_dust_number(ngrid,nlayer) ! tendancy of vertical transport (dust number) |
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| 117 | REAL dqdet_stormdust_mass(ngrid,nlayer) ! tendancy of detrainement (stormdust mass) |
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| 118 | REAL dqdet_stormdust_number(ngrid,nlayer) ! tendancy of detrainement (stormdust number) |
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| 119 | |
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| 120 | REAL masse_col(nlayer) ! mass of atmosphere (kg/m2) |
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| 121 | REAL zq(ngrid,nlayer,nq) ! updated tracers |
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| 122 | |
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| 123 | REAL w(ngrid,nlayer) ! air mass flux (calculated with the vertical wind velocity profile) used as input in Van Leer (kgair/m2) |
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| 124 | REAL wqmass(ngrid,nlayer+1) ! tracer (dust_mass) mass flux in Van Leer (kg/m2) |
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| 125 | REAL wqnumber(ngrid,nlayer+1) ! tracer (dust_number) mass flux in Van Leer (kg/m2) |
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| 126 | |
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| 127 | LOGICAL storm(ngrid) ! true when there is a dust storm (if the opacity is high): trigger the rocket dust storm scheme |
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| 128 | REAL coefdetrain(ngrid,nlayer) ! coefficient for detrainment : % of stormdust detrained |
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| 129 | INTEGER scheme(ngrid) ! triggered scheme |
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| 130 | |
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| 131 | REAL,PARAMETER:: coefmin =0.025 ! 0<coefmin<1 Minimum fraction of stormdust detrained |
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| 132 | REAL,PARAMETER:: wmin =0.1!0.25 ! stormdust detrainment if wrad < wmin |
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| 133 | REAL,PARAMETER:: wmax =10. ! maximum vertical velocity of the rocket dust storms (m/s) |
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| 134 | |
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| 135 | ! diagnostics |
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| 136 | REAL lapserate(ngrid,nlayer) |
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| 137 | REAL deltahr(ngrid,nlayer+1) |
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| 138 | |
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| 139 | LOGICAL,SAVE :: firstcall=.true. |
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| 140 | |
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| 141 | ! variables for the radiative transfer |
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| 142 | REAL fluxsurf_lw1(ngrid) |
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| 143 | REAL fluxsurf_sw1(ngrid,2) |
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| 144 | REAL fluxtop_lw1(ngrid) |
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| 145 | REAL fluxtop_sw1(ngrid,2) |
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| 146 | REAL tauref(ngrid) |
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| 147 | REAL tau(ngrid,naerkind) |
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| 148 | REAL aerosol(ngrid,nlayer,naerkind) |
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| 149 | REAL tauscaling(ngrid) |
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| 150 | REAL taucloudtes(ngrid) |
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| 151 | REAL rdust(ngrid,nlayer) |
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| 152 | REAL rstormdust(ngrid,nlayer) |
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| 153 | REAL rice(ngrid,nlayer) |
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| 154 | REAL nuice(ngrid,nlayer) |
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| 155 | |
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| 156 | |
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| 157 | ! ********************************************************************** |
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| 158 | ! ********************************************************************** |
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| 159 | ! Rocket dust storm parametrization to reproduce the detached dust layers |
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| 160 | ! during the dust storm season: |
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| 161 | ! The radiative warming due to the presence of storm dust is |
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| 162 | ! balanced by the adiabatic cooling. The tracer "storm dust" |
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| 163 | ! is transported by the upward/downward flow. |
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| 164 | ! ********************************************************************** |
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| 165 | ! ********************************************************************** |
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| 166 | !! 1. Radiative transfer in storm dust |
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| 167 | !! 2. Compute vertical velocity for storm dust |
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| 168 | !! case 1 storm = false: nothing to do |
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| 169 | !! case 2 rocket dust storm (storm=true) |
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| 170 | !! 3. Vertical transport (Van Leer) |
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| 171 | !! 4. Detrainment |
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| 172 | ! ********************************************************************** |
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| 173 | ! ********************************************************************** |
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| 174 | |
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| 175 | |
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| 176 | ! ********************************************************************** |
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| 177 | ! Initializations |
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| 178 | ! ********************************************************************** |
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| 179 | storm(:)=.false. |
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| 180 | pdqrds(:,:,:) = 0. |
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| 181 | mr_dust_mass(:,:)=0. |
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| 182 | mr_dust_number(:,:)=0. |
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| 183 | mr_stormdust_mass(:,:)=0. |
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| 184 | mr_stormdust_number(:,:)=0. |
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| 185 | dqvl_dust_mass(:,:)=0. |
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| 186 | dqvl_dust_number(:,:)=0. |
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| 187 | dqvl_stormdust_mass(:,:)=0. |
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| 188 | dqvl_stormdust_number(:,:)=0. |
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| 189 | dqdet_stormdust_mass(:,:)=0. |
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| 190 | dqdet_stormdust_number(:,:)=0. |
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| 191 | wrad(:,:)=0. |
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| 192 | w(:,:)=0. |
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| 193 | wqmass(:,:)=0. |
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| 194 | wqnumber(:,:)=0. |
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| 195 | zdtvert(:,:)=0. |
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| 196 | lapserate(:,:)=0. |
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| 197 | deltahr(:,:)=0. |
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| 198 | scheme(:)=0 |
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| 199 | coefdetrain(:,:)=1. |
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| 200 | |
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| 201 | !! no update for the stormdust tracer and temperature fields |
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| 202 | !! because previous callradite was for background dust |
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| 203 | zq(1:ngrid,1:nlayer,1:nq)=pq(1:ngrid,1:nlayer,1:nq) |
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| 204 | zt(1:ngrid,1:nlayer)=pt(1:ngrid,1:nlayer) |
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| 205 | |
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| 206 | |
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| 207 | zq_dust_mass(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_dust_mass) |
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| 208 | zq_dust_number(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_dust_number) |
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| 209 | zq_stormdust_mass(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_stormdust_mass) |
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| 210 | zq_stormdust_number(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_stormdust_number) |
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| 211 | |
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| 212 | ! ********************************************************************* |
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| 213 | ! 0. Check if there is a storm |
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| 214 | ! ********************************************************************* |
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| 215 | DO ig=1,ngrid |
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| 216 | storm(ig)=.false. |
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| 217 | DO l=1,nlayer |
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| 218 | IF (zq(ig,l,igcm_stormdust_mass) & |
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| 219 | .gt. zq(ig,l,igcm_dust_mass)*(1.E-4)) THEN |
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| 220 | storm(ig)=.true. |
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| 221 | EXIT |
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| 222 | ENDIF |
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| 223 | ENDDO |
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| 224 | ENDDO |
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| 225 | |
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| 226 | ! ********************************************************************* |
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| 227 | ! 1. Call the second radiative transfer for stormdust, obtain the extra heating |
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| 228 | ! ********************************************************************* |
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| 229 | CALL callradite(icount,ngrid,nlayer,nq,zday,zls,pq,albedo, & |
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| 230 | emis,mu0,pplev,pplay,pt,tsurf,fract,dist_sol,igout, & |
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| 231 | zdtlw1,zdtsw1,fluxsurf_lw1,fluxsurf_sw1,fluxtop_lw1, & |
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| 232 | fluxtop_sw1,tauref,tau,aerosol,dsodust,tauscaling, & |
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| 233 | taucloudtes,rdust,rice,nuice,co2ice,rstormdust, & |
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| 234 | totstormfract,clearatm,dsords, & |
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| 235 | clearsky,totcloudfrac) |
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| 236 | |
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| 237 | ! ********************************************************************** |
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| 238 | ! 2. Compute vertical velocity for storm dust |
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| 239 | ! ********************************************************************** |
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| 240 | !! ********************************************************************** |
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| 241 | !! 2.1 Nothing to do when no storm |
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| 242 | !! no storm |
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| 243 | DO ig=1,ngrid |
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| 244 | IF (.NOT.(storm(ig))) then |
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| 245 | scheme(ig)=1 |
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| 246 | cycle |
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| 247 | ENDIF ! IF (storm(ig)) |
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| 248 | ENDDO ! DO ig=1,ngrid |
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| 249 | |
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| 250 | !! ********************************************************************** |
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| 251 | !! 2.2 Calculation of the extra heating : computing heating rates |
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| 252 | !! gradient at boundaries of each layer, start from surface |
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| 253 | DO ig=1,ngrid |
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| 254 | IF (storm(ig)) THEN |
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| 255 | |
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| 256 | scheme(ig)=2 |
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| 257 | !! This is the env. lapse rate |
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| 258 | zdtvert(ig,1)=0. |
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| 259 | DO l=1,nlayer-1 |
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| 260 | zdtvert(ig,l+1)=(zt(ig,l+1)-zt(ig,l))/(pzlay(ig,l+1)-pzlay(ig,l)) |
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| 261 | lapserate(ig,l+1)=zdtvert(ig,l+1) |
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| 262 | ENDDO |
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| 263 | |
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| 264 | !! computing heating rates gradient at boundraies of each layer |
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| 265 | !! start from surface |
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| 266 | zdtlw1_lev(1)=0. |
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| 267 | zdtsw1_lev(1)=0. |
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| 268 | zdtlw_lev(1)=0. |
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| 269 | zdtsw_lev(1)=0. |
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| 270 | ztlev(ig,1)=zt(ig,1) |
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| 271 | |
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| 272 | DO l=1,nlayer-1 |
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| 273 | !! Calculation for the dust storm fraction |
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| 274 | zdtlw1_lev(l+1)=(zdtlw1(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ & |
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| 275 | zdtlw1(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / & |
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| 276 | (pzlay(ig,l+1)-pzlay(ig,l)) |
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| 277 | |
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| 278 | zdtsw1_lev(l+1)=(zdtsw1(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ & |
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| 279 | zdtsw1(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / & |
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| 280 | (pzlay(ig,l+1)-pzlay(ig,l)) |
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| 281 | !! Calculation for the background dust fraction |
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| 282 | zdtlw_lev(l+1)=(pdtlw(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ & |
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| 283 | pdtlw(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / & |
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| 284 | (pzlay(ig,l+1)-pzlay(ig,l)) |
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| 285 | |
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| 286 | zdtsw_lev(l+1)=(pdtsw(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ & |
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| 287 | pdtsw(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / & |
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| 288 | (pzlay(ig,l+1)-pzlay(ig,l)) |
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| 289 | |
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| 290 | ztlev(ig,l+1)=(zt(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ & |
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| 291 | zt(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / & |
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| 292 | (pzlay(ig,l+1)-pzlay(ig,l)) |
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| 293 | ENDDO ! DO l=1,nlayer-1 |
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| 294 | |
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| 295 | !! ********************************************************************** |
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| 296 | !! 2.3 Calculation of the vertical velocity : extra heating |
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| 297 | !! balanced by adiabatic cooling |
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| 298 | |
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| 299 | DO l=1,nlayer |
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| 300 | deltahr(ig,l)=(zdtlw1_lev(l)+zdtsw1_lev(l)) & |
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| 301 | -(zdtlw_lev(l)+zdtsw_lev(l)) |
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| 302 | wrad(ig,l)=-deltahr(ig,l)/(g/cpp+ & |
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| 303 | max(zdtvert(ig,l),-0.99*g/cpp)) |
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| 304 | !! Limit vertical wind in case of lapse rate close to adiabatic |
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| 305 | wrad(ig,l)=max(wrad(ig,l),-wmax) |
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| 306 | wrad(ig,l)=min(wrad(ig,l),wmax) |
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| 307 | ENDDO |
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| 308 | |
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| 309 | ENDIF ! IF (storm(ig)) |
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| 310 | ENDDO ! DO ig=1,ngrid |
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| 311 | |
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| 312 | ! ********************************************************************** |
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| 313 | ! 3. Vertical transport |
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| 314 | ! ********************************************************************** |
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| 315 | !! ********************************************************************** |
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| 316 | !! 3.1 Transport of background dust + storm dust (concentrated) |
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| 317 | DO ig=1,ngrid |
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| 318 | IF (storm(ig)) THEN |
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| 319 | DO l=1,nlayer |
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| 320 | mr_dust_mass(ig,l) = zq_dust_mass(ig,l) |
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| 321 | mr_dust_number(ig,l) = zq_dust_number(ig,l) |
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| 322 | mr_stormdust_mass(ig,l) = zq_dust_mass(ig,l)+ & |
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| 323 | zq_stormdust_mass(ig,l)/totstormfract(ig) |
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| 324 | mr_stormdust_number(ig,l) = zq_dust_number(ig,l)+ & |
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| 325 | zq_stormdust_number(ig,l)/totstormfract(ig) |
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| 326 | ENDDO ! DO l=1,nlayer |
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| 327 | ENDIF ! IF (storm(ig)) |
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| 328 | ENDDO ! DO ig=1,ngrid |
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| 329 | |
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| 330 | !! ********************************************************************** |
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| 331 | !! 3.2 Vertical transport by a Van Leer scheme |
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| 332 | DO ig=1,ngrid |
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| 333 | IF (storm(ig)) THEN |
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| 334 | |
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| 335 | !! Mass of atmosphere in the layer |
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| 336 | DO l=1,nlayer |
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| 337 | masse_col(l)=(pplev(ig,l)-pplev(ig,l+1))/g |
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| 338 | ENDDO |
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| 339 | |
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| 340 | !! Mass flux in kg/m2 |
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| 341 | DO l=1,nlayer |
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| 342 | w(ig,l)=wrad(ig,l)*(pplev(ig,l)/(r*ztlev(ig,l)))*ptimestep |
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| 343 | ENDDO |
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| 344 | |
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| 345 | !! Vector column |
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| 346 | DO l=1,nlayer |
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| 347 | zq_vl_col(l)= mr_stormdust_mass(ig,l) |
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| 348 | zn_vl_col(l)= mr_stormdust_number(ig,l) |
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| 349 | ENDDO |
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| 350 | |
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| 351 | !! Van Leer scheme |
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| 352 | CALL vl_storm(nlayer,zq_vl_col,2., & |
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| 353 | masse_col,w(ig,:),wqmass(ig,:)) |
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| 354 | CALL vl_storm(nlayer,zn_vl_col,2., & |
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| 355 | masse_col,w(ig,:),wqnumber(ig,:)) |
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| 356 | !! Mass mixing ratio after transport |
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| 357 | mr_stormdust_mass(ig,:) = zq_vl_col(:) |
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| 358 | mr_stormdust_number(ig,:) = zn_vl_col(:) |
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| 359 | |
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| 360 | ENDIF ! IF storm(ig) |
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| 361 | ENDDO ! DO ig=1,ngrid |
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| 362 | |
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| 363 | !! ********************************************************************** |
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| 364 | !! 3.3 Re-calculation of the mixing ratios after vertical transport |
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| 365 | DO ig=1,ngrid |
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| 366 | IF (storm(ig)) THEN |
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| 367 | DO l=1,nlayer |
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| 368 | |
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| 369 | !! General and "healthy" case |
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| 370 | IF (mr_stormdust_mass(ig,l).ge.mr_dust_mass(ig,l)) THEN |
|---|
| 371 | zq_dust_mass(ig,l) = mr_dust_mass(ig,l) |
|---|
| 372 | zq_dust_number(ig,l) = mr_dust_number(ig,l) |
|---|
| 373 | zq_stormdust_mass(ig,l) = totstormfract(ig)*(mr_stormdust_mass(ig,l)-mr_dust_mass(ig,l)) |
|---|
| 374 | zq_stormdust_number(ig,l) = totstormfract(ig)*(mr_stormdust_number(ig,l)-mr_dust_number(ig,l)) |
|---|
| 375 | !! Particular case: there is less than initial dust mixing ratio after the vertical transport |
|---|
| 376 | ELSE |
|---|
| 377 | zq_dust_mass(ig,l) = (1.-totstormfract(ig))*mr_dust_mass(ig,l)+totstormfract(ig)*mr_stormdust_mass(ig,l) |
|---|
| 378 | zq_dust_number(ig,l) = (1.-totstormfract(ig))*mr_dust_number(ig,l)+totstormfract(ig)*mr_stormdust_number(ig,l) |
|---|
| 379 | zq_stormdust_mass(ig,l) = 0. |
|---|
| 380 | zq_stormdust_number(ig,l) = 0. |
|---|
| 381 | ENDIF |
|---|
| 382 | |
|---|
| 383 | ENDDO ! DO l=1,nlayer |
|---|
| 384 | ENDIF ! IF storm(ig) |
|---|
| 385 | ENDDO ! DO ig=1,ngrid |
|---|
| 386 | |
|---|
| 387 | !! ********************************************************************** |
|---|
| 388 | !! 3.4 Calculation of the tendencies of the vertical transport |
|---|
| 389 | DO ig=1,ngrid |
|---|
| 390 | IF (storm(ig)) THEN |
|---|
| 391 | DO l=1,nlayer |
|---|
| 392 | dqvl_stormdust_mass(ig,l) = (zq_stormdust_mass(ig,l)- & |
|---|
| 393 | zq(ig,l,igcm_stormdust_mass)) /ptimestep |
|---|
| 394 | dqvl_stormdust_number(ig,l) = (zq_stormdust_number(ig,l)- & |
|---|
| 395 | zq(ig,l,igcm_stormdust_number)) /ptimestep |
|---|
| 396 | dqvl_dust_mass(ig,l) = (zq_dust_mass(ig,l)-zq(ig,l,igcm_dust_mass)) /ptimestep |
|---|
| 397 | dqvl_dust_number(ig,l) = (zq_dust_number(ig,l)-zq(ig,l,igcm_dust_number)) /ptimestep |
|---|
| 398 | ENDDO |
|---|
| 399 | ENDIF ! IF storm(ig) |
|---|
| 400 | ENDDO ! DO ig=1,ngrid |
|---|
| 401 | |
|---|
| 402 | ! ********************************************************************** |
|---|
| 403 | ! 4. Detrainment: stormdust is converted to background dust |
|---|
| 404 | ! ********************************************************************** |
|---|
| 405 | !! ********************************************************************** |
|---|
| 406 | !! 4.1 Compute the coefficient of detrainmen |
|---|
| 407 | DO ig=1,ngrid |
|---|
| 408 | DO l=1,nlayer |
|---|
| 409 | IF ((max(abs(wrad(ig,l)),abs(wrad(ig,l+1))) .lt. & |
|---|
| 410 | wmin) .or. (zq_dust_mass(ig,l) .gt. & |
|---|
| 411 | 10000.*zq_stormdust_mass(ig,l))) THEN |
|---|
| 412 | coefdetrain(ig,l)=1. |
|---|
| 413 | ELSE IF (max(abs(wrad(ig,l)),abs(wrad(ig,l+1))) & |
|---|
| 414 | .le. wmax) THEN |
|---|
| 415 | coefdetrain(ig,l)=1.*(((1-coefmin)/(wmin-wmax)**2)* & |
|---|
| 416 | (max(abs(wrad(ig,l)),abs(wrad(ig,l+1)))-wmax)**2 & |
|---|
| 417 | +coefmin) |
|---|
| 418 | ELSE IF (max(abs(wrad(ig,l)),abs(wrad(ig,l+1))).gt. wmax ) THEN |
|---|
| 419 | coefdetrain(ig,l)=coefmin |
|---|
| 420 | ELSE |
|---|
| 421 | coefdetrain(ig,l)=coefmin |
|---|
| 422 | ENDIF |
|---|
| 423 | ENDDO ! DO l=1,nlayer |
|---|
| 424 | ENDDO ! DO ig=1,ngrid |
|---|
| 425 | |
|---|
| 426 | !! ********************************************************************** |
|---|
| 427 | !! 4.2 Calculation of the tendencies of the detrainment |
|---|
| 428 | DO ig=1,ngrid |
|---|
| 429 | DO l=1,nlayer |
|---|
| 430 | dqdet_stormdust_mass(ig,l)=-coefdetrain(ig,l)*zq_stormdust_mass(ig,l) & |
|---|
| 431 | /ptimestep |
|---|
| 432 | dqdet_stormdust_number(ig,l)=-coefdetrain(ig,l)*zq_stormdust_number(ig,l) & |
|---|
| 433 | /ptimestep |
|---|
| 434 | ENDDO ! DO l=1,nlayer |
|---|
| 435 | ENDDO ! DO ig=1,ngrid |
|---|
| 436 | |
|---|
| 437 | ! ********************************************************************** |
|---|
| 438 | ! 5. Final tendencies: vertical transport + detrainment |
|---|
| 439 | ! ********************************************************************** |
|---|
| 440 | DO ig=1,ngrid |
|---|
| 441 | DO l=1,nlayer |
|---|
| 442 | pdqrds(ig,l,igcm_stormdust_mass)=dqdet_stormdust_mass(ig,l) & |
|---|
| 443 | +dqvl_stormdust_mass(ig,l) |
|---|
| 444 | pdqrds(ig,l,igcm_stormdust_number)=dqdet_stormdust_number(ig,l) & |
|---|
| 445 | +dqvl_stormdust_number(ig,l) |
|---|
| 446 | pdqrds(ig,l,igcm_dust_mass)= -dqdet_stormdust_mass(ig,l) & |
|---|
| 447 | +dqvl_dust_mass(ig,l) |
|---|
| 448 | pdqrds(ig,l,igcm_dust_number)= -dqdet_stormdust_number(ig,l) & |
|---|
| 449 | +dqvl_dust_number(ig,l) |
|---|
| 450 | ENDDO ! DO l=1,nlayer |
|---|
| 451 | ENDDO ! DO ig=1,ngrid |
|---|
| 452 | |
|---|
| 453 | ! ********************************************************************** |
|---|
| 454 | ! 6. To prevent from negative values |
|---|
| 455 | ! ********************************************************************** |
|---|
| 456 | DO ig=1,ngrid |
|---|
| 457 | DO l=1,nlayer |
|---|
| 458 | IF ((pq(ig,l,igcm_stormdust_mass) & |
|---|
| 459 | +pdqrds(ig,l,igcm_stormdust_mass)*ptimestep .le. 0.) .or. & |
|---|
| 460 | (pq(ig,l,igcm_stormdust_number) & |
|---|
| 461 | +pdqrds(ig,l,igcm_stormdust_number)*ptimestep .le. 0.)) THEN |
|---|
| 462 | pdqrds(ig,l,igcm_stormdust_mass)=-pq(ig,l,igcm_stormdust_mass)/ptimestep |
|---|
| 463 | pdqrds(ig,l,igcm_stormdust_number)=-pq(ig,l,igcm_stormdust_number)/ptimestep |
|---|
| 464 | ENDIF |
|---|
| 465 | ENDDO ! nlayer |
|---|
| 466 | ENDDO ! DO ig=1,ngrid |
|---|
| 467 | |
|---|
| 468 | DO ig=1,ngrid |
|---|
| 469 | DO l=1,nlayer |
|---|
| 470 | IF ((pq(ig,l,igcm_dust_mass) & |
|---|
| 471 | +pdqrds(ig,l,igcm_dust_mass)*ptimestep .le. 0.) .or. & |
|---|
| 472 | (pq(ig,l,igcm_dust_number) & |
|---|
| 473 | +pdqrds(ig,l,igcm_dust_number)*ptimestep .le. 0.)) THEN |
|---|
| 474 | pdqrds(ig,l,igcm_dust_mass)=-pq(ig,l,igcm_dust_mass)/ptimestep |
|---|
| 475 | pdqrds(ig,l,igcm_dust_number)=-pq(ig,l,igcm_dust_number)/ptimestep |
|---|
| 476 | ENDIF |
|---|
| 477 | ENDDO ! nlayer |
|---|
| 478 | ENDDO ! DO ig=1,ngrid |
|---|
| 479 | |
|---|
| 480 | !======================================================================= |
|---|
| 481 | ! WRITEDIAGFI |
|---|
| 482 | |
|---|
| 483 | call WRITEDIAGFI(ngrid,'lapserate','lapse rate in the storm', & |
|---|
| 484 | & 'k/m',3,lapserate) |
|---|
| 485 | call WRITEDIAGFI(ngrid,'deltahr','extra heating rates', & |
|---|
| 486 | & 'K/s',3,deltahr) |
|---|
| 487 | call writediagfi(ngrid,'scheme','which scheme',& |
|---|
| 488 | ' ',2,real(scheme)) |
|---|
| 489 | |
|---|
| 490 | END SUBROUTINE rocketduststorm |
|---|
| 491 | |
|---|
| 492 | !======================================================================= |
|---|
| 493 | ! VAN LEER |
|---|
| 494 | |
|---|
| 495 | SUBROUTINE vl_storm(nlay,q,pente_max,masse,w,wq) |
|---|
| 496 | ! |
|---|
| 497 | ! Auteurs: P.Le Van, F.Hourdin, F.Forget |
|---|
| 498 | ! |
|---|
| 499 | ! ******************************************************************** |
|---|
| 500 | ! Shema d'advection " pseudo amont " dans la verticale |
|---|
| 501 | ! pour appel dans la physique (sedimentation) |
|---|
| 502 | ! ******************************************************************** |
|---|
| 503 | ! q rapport de melange (kg/kg)... |
|---|
| 504 | ! masse : masse de la couche Dp/g |
|---|
| 505 | ! w : masse d'atm ``transferee'' a chaque pas de temps (kg.m-2) |
|---|
| 506 | ! pente_max = 2 conseillee |
|---|
| 507 | ! |
|---|
| 508 | ! |
|---|
| 509 | ! -------------------------------------------------------------------- |
|---|
| 510 | IMPLICIT NONE |
|---|
| 511 | ! |
|---|
| 512 | |
|---|
| 513 | ! Arguments: |
|---|
| 514 | ! ---------- |
|---|
| 515 | INTEGER,INTENT(IN) :: nlay ! number of atmospheric layers |
|---|
| 516 | REAL masse(nlay),pente_max |
|---|
| 517 | REAL q(nlay) |
|---|
| 518 | REAL w(nlay) |
|---|
| 519 | REAL wq(nlay+1) |
|---|
| 520 | ! |
|---|
| 521 | ! Local |
|---|
| 522 | ! --------- |
|---|
| 523 | ! |
|---|
| 524 | INTEGER i,l,j,ii |
|---|
| 525 | ! |
|---|
| 526 | |
|---|
| 527 | REAL dzq(nlay),dzqw(nlay),adzqw(nlay),dzqmax |
|---|
| 528 | REAL newmasse |
|---|
| 529 | REAL sigw, Mtot, MQtot |
|---|
| 530 | INTEGER m |
|---|
| 531 | |
|---|
| 532 | REAL SSUM,CVMGP,CVMGT |
|---|
| 533 | INTEGER ismax,ismin |
|---|
| 534 | |
|---|
| 535 | |
|---|
| 536 | ! On oriente tout dans le sens de la pression c'est a dire dans le |
|---|
| 537 | ! sens de W |
|---|
| 538 | |
|---|
| 539 | do l=2,nlay |
|---|
| 540 | dzqw(l)=q(l-1)-q(l) |
|---|
| 541 | adzqw(l)=abs(dzqw(l)) |
|---|
| 542 | enddo |
|---|
| 543 | |
|---|
| 544 | do l=2,nlay-1 |
|---|
| 545 | #ifdef CRAY |
|---|
| 546 | dzq(l)=0.5* |
|---|
| 547 | , cvmgp(dzqw(l)+dzqw(l+1),0.,dzqw(l)*dzqw(l+1)) |
|---|
| 548 | #else |
|---|
| 549 | if(dzqw(l)*dzqw(l+1).gt.0.) then |
|---|
| 550 | dzq(l)=0.5*(dzqw(l)+dzqw(l+1)) |
|---|
| 551 | else |
|---|
| 552 | dzq(l)=0. |
|---|
| 553 | endif |
|---|
| 554 | #endif |
|---|
| 555 | dzqmax=pente_max*min(adzqw(l),adzqw(l+1)) |
|---|
| 556 | dzq(l)=sign(min(abs(dzq(l)),dzqmax),dzq(l)) |
|---|
| 557 | enddo |
|---|
| 558 | |
|---|
| 559 | dzq(1)=0. |
|---|
| 560 | dzq(nlay)=0. |
|---|
| 561 | |
|---|
| 562 | ! --------------------------------------------------------------- |
|---|
| 563 | ! .... calcul des termes d'advection verticale ....... |
|---|
| 564 | ! --------------------------------------------------------------- |
|---|
| 565 | |
|---|
| 566 | ! calcul de - d( q * w )/ d(sigma) qu'on ajoute a dq pour calculer dq |
|---|
| 567 | ! |
|---|
| 568 | ! No flux at the model top: |
|---|
| 569 | wq(nlay+1)=0. |
|---|
| 570 | |
|---|
| 571 | ! Surface flux up: |
|---|
| 572 | if(w(1).lt.0.) wq(1)=0. ! warning : not always valid |
|---|
| 573 | |
|---|
| 574 | do l = 1,nlay-1 ! loop different than when w>0 |
|---|
| 575 | |
|---|
| 576 | ! 1) Compute wq where w < 0 (up) |
|---|
| 577 | ! =============================== |
|---|
| 578 | |
|---|
| 579 | if(w(l+1).le.0)then |
|---|
| 580 | |
|---|
| 581 | ! Regular scheme (transfered mass < 1 layer) |
|---|
| 582 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 583 | if(-w(l+1).le.masse(l))then |
|---|
| 584 | sigw=w(l+1)/masse(l) |
|---|
| 585 | wq(l+1)=w(l+1)*(q(l)-0.5*(1.+sigw)*dzq(l)) |
|---|
| 586 | ! Extended scheme (transfered mass > 1 layer) |
|---|
| 587 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 588 | else |
|---|
| 589 | m = l-1 |
|---|
| 590 | Mtot = masse(m+1) |
|---|
| 591 | MQtot = masse(m+1)*q(m+1) |
|---|
| 592 | if (m.le.0)goto 77 |
|---|
| 593 | do while(-w(l+1).gt.(Mtot+masse(m))) |
|---|
| 594 | ! do while(-w(l+1).gt.Mtot) |
|---|
| 595 | m=m-1 |
|---|
| 596 | Mtot = Mtot + masse(m+1) |
|---|
| 597 | MQtot = MQtot + masse(m+1)*q(m+1) |
|---|
| 598 | if (m.le.0)goto 77 |
|---|
| 599 | end do |
|---|
| 600 | 77 continue |
|---|
| 601 | |
|---|
| 602 | if (m.gt.0) then |
|---|
| 603 | sigw=(w(l+1)+Mtot)/masse(m) |
|---|
| 604 | wq(l+1)= -(MQtot + (-w(l+1)-Mtot)* & |
|---|
| 605 | (q(m)-0.5*(1.+sigw)*dzq(m)) ) |
|---|
| 606 | else |
|---|
| 607 | w(l+1) = -Mtot |
|---|
| 608 | wq(l+1) = -MQtot |
|---|
| 609 | end if |
|---|
| 610 | endif ! (-w(l+1).le.masse(l)) |
|---|
| 611 | |
|---|
| 612 | ! 2) Compute wq where w > 0 (down) |
|---|
| 613 | ! =============================== |
|---|
| 614 | |
|---|
| 615 | else if(w(l).gt.0.)then |
|---|
| 616 | |
|---|
| 617 | ! Regular scheme (transfered mass < 1 layer) |
|---|
| 618 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 619 | if(w(l).le.masse(l))then |
|---|
| 620 | sigw=w(l)/masse(l) |
|---|
| 621 | wq(l)=w(l)*(q(l)+0.5*(1.-sigw)*dzq(l)) |
|---|
| 622 | |
|---|
| 623 | |
|---|
| 624 | ! Extended scheme (transfered mass > 1 layer) |
|---|
| 625 | ! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
|---|
| 626 | else |
|---|
| 627 | m=l |
|---|
| 628 | Mtot = masse(m) |
|---|
| 629 | MQtot = masse(m)*q(m) |
|---|
| 630 | if(m.ge.nlay)goto 88 |
|---|
| 631 | do while(w(l).gt.(Mtot+masse(m+1))) |
|---|
| 632 | m=m+1 |
|---|
| 633 | Mtot = Mtot + masse(m) |
|---|
| 634 | MQtot = MQtot + masse(m)*q(m) |
|---|
| 635 | if(m.ge.nlay)goto 88 |
|---|
| 636 | end do |
|---|
| 637 | 88 continue |
|---|
| 638 | if (m.lt.nlay) then |
|---|
| 639 | sigw=(w(l)-Mtot)/masse(m+1) |
|---|
| 640 | wq(l)=(MQtot + (w(l)-Mtot)* & |
|---|
| 641 | (q(m+1)+0.5*(1.-sigw)*dzq(m+1)) ) |
|---|
| 642 | else |
|---|
| 643 | w(l) = Mtot |
|---|
| 644 | wq(l) = MQtot |
|---|
| 645 | end if |
|---|
| 646 | end if |
|---|
| 647 | |
|---|
| 648 | end if ! w<0 (up) |
|---|
| 649 | |
|---|
| 650 | enddo ! l = 1,nlay-1 |
|---|
| 651 | |
|---|
| 652 | do l = 1,nlay ! loop different than when w<0 |
|---|
| 653 | |
|---|
| 654 | ! it cannot entrain more than available mass ! |
|---|
| 655 | if ( (wq(l+1)-wq(l)) .lt. -(masse(l)*q(l)) ) then |
|---|
| 656 | wq(l+1) = wq(l)-masse(l)*q(l) |
|---|
| 657 | end if |
|---|
| 658 | |
|---|
| 659 | q(l)=q(l) + (wq(l+1)-wq(l))/masse(l) |
|---|
| 660 | |
|---|
| 661 | enddo |
|---|
| 662 | |
|---|
| 663 | END SUBROUTINE vl_storm |
|---|
| 664 | |
|---|
| 665 | !======================================================================= |
|---|
| 666 | ! Initialization of the module variables |
|---|
| 667 | |
|---|
| 668 | subroutine ini_rocketduststorm_mod(ngrid) |
|---|
| 669 | |
|---|
| 670 | implicit none |
|---|
| 671 | |
|---|
| 672 | integer, intent(in) :: ngrid |
|---|
| 673 | |
|---|
| 674 | allocate(dustliftday(ngrid)) |
|---|
| 675 | |
|---|
| 676 | end subroutine ini_rocketduststorm_mod |
|---|
| 677 | |
|---|
| 678 | subroutine end_rocketduststorm_mod |
|---|
| 679 | |
|---|
| 680 | implicit none |
|---|
| 681 | |
|---|
| 682 | if (allocated(dustliftday)) deallocate(dustliftday) |
|---|
| 683 | |
|---|
| 684 | end subroutine end_rocketduststorm_mod |
|---|
| 685 | |
|---|
| 686 | END MODULE rocketduststorm_mod |
|---|
