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