| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/cheapaml/cheapaml.F,v 1.23 2013/02/19 16:35:00 jmc Exp $ |
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C $Name: $ |
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|
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#include "CHEAPAML_OPTIONS.h" |
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|
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SUBROUTINE CHEAPAML( |
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I myTime, myIter, myThid ) |
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|
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C ================================================================== |
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C SUBROUTINE cheapaml |
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C ================================================================== |
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C |
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C o Get the surface fluxes used to force ocean model |
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C |
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C Output: |
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C ------ |
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C ustress, vstress - wind stress |
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C Qnet - net heat flux |
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C EmPmR - net freshwater flux |
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C Tair - mean air temperature (K) at height ht (m) |
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C Qair - Specific humidity kg/kg |
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C Cheaptracer - passive tracer |
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C --------- |
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C |
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C Input: |
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C ------ |
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C uwind, vwind - mean wind speed (m/s) |
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C Tr - Relaxation profile for Tair on boundaries (C) |
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C qr - Relaxation profile for specific humidity (kg/kg) |
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C CheaptracerR - Relaxation profile for passive tracer |
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C ================================================================== |
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C SUBROUTINE cheapaml |
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C ================================================================== |
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|
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IMPLICIT NONE |
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|
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C == global variables == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "EESUPPORT.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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#include "GRID.h" |
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#include "FFIELDS.h" |
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#include "CHEAPAML.h" |
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|
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C == routine arguments == |
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_RL myTime |
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INTEGER myIter |
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INTEGER mythid |
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|
| 52 |
C == Local variables == |
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INTEGER bi,bj |
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INTEGER i,j, nt, startAB |
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INTEGER iMin, iMax |
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INTEGER jMin, jMax |
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LOGICAL writeDbug |
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CHARACTER*10 sufx |
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LOGICAL xIsPeriodic, yIsPeriodic |
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|
| 61 |
C tendencies of atmospheric temperature, current and past |
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_RL gTair(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 63 |
_RL gqair(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL gCheaptracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C zonal and meridional transports |
| 66 |
_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C AML timestep |
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_RL deltaTTracer,deltaTm,ts,xalwu |
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c _RL dm,pt,fsha,flha,evp,xalwd,xolw,xlwnet |
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_RL dm,pt,xalwd,xlwnet |
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_RL dtemp,xflu,xfld,dq,dtr |
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c _RL Fclouds, ttt2 |
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c _RL q,precip,ssqt,ttt,q100,entrain,cdq |
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_RL q,precip,ttt,entrain |
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_RL uRelWind(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vRelWind(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fsha(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL flha(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL evp (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL xolw(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL ssqt(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL q100(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL cdq (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL dumArg(6) |
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_RL fsha0, flha0, evp_0, xolw0, ssqt0, q100_0, cdq_0 |
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_RL Tsurf (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL iceFrac(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL icFrac, opFrac |
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C temp var |
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_RL tmpFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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|
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C variables for htflux |
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#ifdef ALLOW_SEAGER |
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integer iperx |
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integer lsm(snx,sny) |
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|
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real slat, salt_fixed,tstep |
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real dyd_htf(sny),dxd_htf(snx,sny) |
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real sst_htf(snx,sny) |
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real cldfr_htf(snx,sny),wspd_htf(snx,sny),u_htf(snx,sny) |
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real v_htf(snx,sny) |
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real q_htf(snx,sny),t_htf(snx,sny),rlh(snx,sny) |
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real sh(snx,sny),qlw(snx,sny) |
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real qsw_htf(snx,sny),ppo(snx,sny),qa(snx,sny),th(snx,sny) |
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real rh(snx,sny) |
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real qisw(snx,sny),ppi(snx,sny),hice(snx,sny),cice(snx,sny) |
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real thice(snx,sny),tsnw(snx,sny),qios(snx,sny),brne(snx,sny) |
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real rlhi(snx,sny),shi(snx,sny),qlwi(snx,sny),qswi(snx,sny) |
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real albedo(snx,sny) |
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_RL SH_sauv(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL LH_sauv(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* ALLOW_SEAGER */ |
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|
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C useful values |
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C inverse of time step |
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deltaTm=1. _d 0/deltaT |
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|
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C atmospheric timestep |
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deltaTtracer = deltaT/FLOAT(cheapaml_ntim) |
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|
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c writeDbug = debugLevel.GE.debLevC .AND. |
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c & DIFFERENT_MULTIPLE(diagFreq, myTime, deltaTClock) |
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writeDbug = debugLevel.GE.debLevC .AND. diagFreq.GT.0. |
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|
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#ifdef ALLOW_DIAGNOSTICS |
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C-- fill-in diagnostics for cheapAML state variables: |
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IF ( useDiagnostics ) THEN |
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CALL DIAGNOSTICS_FILL( Tair, 'CH_TAIR ', 0,1,0,1,1, myThid ) |
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IF (useFreshWaterFlux) |
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& CALL DIAGNOSTICS_FILL( Qair, 'CH_QAIR ', 0,1,0,1,1, myThid ) |
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ENDIF |
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#endif /* ALLOW_DIAGNOSTICS */ |
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|
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#ifdef ALLOW_SEAGER |
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|
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C initialize array for the seager computation |
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slat = ygOrigin |
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salt_fixed = 35.0 |
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iperx = 0 |
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tstep = deltaT |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j = 1,sny |
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DO i = 1,snx |
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C inputs |
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lsm (i,j) = 1-maskC(i,j,1,bi,bj) |
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lsm(1,j) = 1.0 |
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lsm(snx,j) = 1.0 |
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lsm(i,1) = 1.0 |
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lsm(i,sny) = 1.0 |
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c if (i.le.100) lsm(i,j) = 1.0 |
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|
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dyd_htf(j) = delY(j) |
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dxd_htf(i,j) = delX(i) |
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sst_htf(i,j) = theta(i,j,1,bi,bj) + celsius2K |
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cldfr_htf(i,j) = 0.0 _d 0 |
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u_htf(i,j) = uwind(i,j,bi,bj) |
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v_htf(i,j) = vwind(i,j,bi,bj) |
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q_htf(i,j) = qair(i,j,bi,bj) |
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t_htf(i,j) = Tair(i,j,bi,bj) + celsius2K |
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qisw(i,j) = solar(i,j,bi,bj) |
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ppi(i,j) = 0.0 _d 0 |
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wspd_htf(i,j) = sqrt(uwind(i,j,bi,bj)**2 |
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& + vwind(i,j,bi,bj)**2) |
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|
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cice(i,j) = 0.0 _d 0 |
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C je met la temperature de la glace la dedans |
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tsnw(i,j) = 0.0 _d 0 + celsius2K |
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|
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C outputs |
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C rlh(snx,sny) |
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C sh(snx,sny) |
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C qlw(snx,sny) |
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C qsw_htf(snx,sny) |
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C ppo(snx,sny) |
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C qa(snx,sny) |
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C th(snx,sny) |
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C rh(snx,sny) |
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C hice(snx,sny) |
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C thice(snx,sny) |
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C qios(snx,sny) |
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C brne(snx,sny) |
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C rlhi(snx,sny) |
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C shi(snx,sny) |
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C qlwi(snx,sny) |
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C qswi(snx,sny) |
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C albedo(snx,sny) = 0. _d 0 |
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ENDDO |
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ENDDO |
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|
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C close bi, bj loops |
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ENDDO |
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ENDDO |
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|
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CALL HTFLUX |
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call htfluxice(snx,sny,lsm,dxd_htf,dyd_htf,tstep, |
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+ sst_htf,cldfr_htf,wspd_htf,u_htf,v_htf,q_htf,t_htf |
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$ ,rlh,sh,qlw,qsw_htf,ppo,qa,th,rh, |
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+ qisw,ppi,hice,cice,thice,tsnw,qios,brne,rlhi,shi,qlwi,qswi, |
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+ iperx,salt_fixed,albedo,slat) |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j = 1,sny |
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DO i = 1,snx |
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C OUTPUT |
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if (lsm(i,j).eq.0) then |
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qair(i,j,bi,bj) = qa(i,j) |
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Tair(i,j,bi,bj) = th(i,j) - celsius2K |
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SH_sauv(i,j,bi,bj) = sh(i,j) |
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LH_sauv(i,j,bi,bj) = rlh(i,j) |
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else |
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qair(i,j,bi,bj) = qr(i,j,bi,bj) |
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Tair(i,j,bi,bj) = tr(i,j,bi,bj) |
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endif |
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|
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ENDDO |
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ENDDO |
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|
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C close bi, bj loops |
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ENDDO |
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ENDDO |
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|
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#else /* ALLOW_SEAGER */ |
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|
| 228 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 229 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
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C initialize net heat flux and fresh water flux arrays |
| 231 |
DO j = 1-OLy,sNy+OLy |
| 232 |
DO i = 1-OLx,sNx+OLx |
| 233 |
Qnet(i,j,bi,bj) = 0. _d 0 |
| 234 |
EmPmR(i,j,bi,bj)= 0. _d 0 |
| 235 |
ENDDO |
| 236 |
ENDDO |
| 237 |
ENDDO |
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ENDDO |
| 239 |
|
| 240 |
C this is a reprogramming to speed up cheapaml |
| 241 |
C the short atmospheric time step is applied to |
| 242 |
C advection and diffusion only. diabatic forcing is computed |
| 243 |
C once and used for the entire oceanic time step. |
| 244 |
|
| 245 |
C cycle through atmospheric advective/diffusive |
| 246 |
C surface temperature evolution |
| 247 |
|
| 248 |
DO nt=1,cheapaml_ntim |
| 249 |
|
| 250 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 251 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 252 |
|
| 253 |
C compute advective and diffusive flux divergence |
| 254 |
DO j=1-OLy,sNy+OLy |
| 255 |
DO i=1-OLx,sNx+OLx |
| 256 |
gTair(i,j,bi,bj)=0. _d 0 |
| 257 |
uTrans(i,j)=uwind(i,j,bi,bj) |
| 258 |
vTrans(i,j)=vwind(i,j,bi,bj) |
| 259 |
ENDDO |
| 260 |
ENDDO |
| 261 |
CALL GAD_2d_CALC_RHS( |
| 262 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, |
| 263 |
I uTrans, vTrans, |
| 264 |
I uwind, vwind, |
| 265 |
I cheapaml_kdiff, Tair, |
| 266 |
I deltaTtracer, zu, useFluxLimit, |
| 267 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 268 |
O wwind, |
| 269 |
U gTair, |
| 270 |
I myTime, myIter, myThid ) |
| 271 |
startAB = cheapTairStartAB + nt - 1 |
| 272 |
CALL ADAMS_BASHFORTH2( |
| 273 |
I bi, bj, 1, 1, |
| 274 |
U gTair, gTairm, tmpFld, |
| 275 |
I startAB, myIter, myThid ) |
| 276 |
CALL CHEAPAML_TIMESTEP( |
| 277 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, deltaTtracer, |
| 278 |
I gTair, |
| 279 |
U Tair, |
| 280 |
I nt, myIter, myThid ) |
| 281 |
C close bi,bj loops |
| 282 |
ENDDO |
| 283 |
ENDDO |
| 284 |
C update edges |
| 285 |
_EXCH_XY_RL(Tair,mythid) |
| 286 |
|
| 287 |
IF (useFreshWaterFlux) THEN |
| 288 |
C do water |
| 289 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 290 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 291 |
DO j=1-OLy,sNy+OLy |
| 292 |
DO i=1-OLx,sNx+OLx |
| 293 |
gqair(i,j,bi,bj)=0. _d 0 |
| 294 |
uTrans(i,j)=uwind(i,j,bi,bj) |
| 295 |
vTrans(i,j)=vwind(i,j,bi,bj) |
| 296 |
ENDDO |
| 297 |
ENDDO |
| 298 |
CALL GAD_2d_CALC_RHS( |
| 299 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, |
| 300 |
I uTrans, vTrans, |
| 301 |
I uwind, vwind, |
| 302 |
I cheapaml_kdiff, qair, |
| 303 |
I deltaTtracer, zu, useFluxLimit, |
| 304 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 305 |
O wwind, |
| 306 |
U gqair, |
| 307 |
I myTime, myIter, myThid ) |
| 308 |
startAB = cheapTairStartAB + nt - 1 |
| 309 |
CALL ADAMS_BASHFORTH2( |
| 310 |
I bi, bj, 1, 1, |
| 311 |
U gqair, gqairm, tmpFld, |
| 312 |
I startAB, myIter, myThid ) |
| 313 |
CALL CHEAPAML_TIMESTEP( |
| 314 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, deltaTtracer, |
| 315 |
I gqair, |
| 316 |
U qair, |
| 317 |
I nt, myIter, myThid ) |
| 318 |
C close bi, bj loops |
| 319 |
ENDDO |
| 320 |
ENDDO |
| 321 |
C update edges |
| 322 |
_EXCH_XY_RL(qair,mythid) |
| 323 |
ENDIF ! if use freshwater |
| 324 |
|
| 325 |
IF (useCheapTracer) THEN |
| 326 |
C do tracer |
| 327 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 328 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 329 |
DO j=1-OLy,sNy+OLy |
| 330 |
DO i=1-OLx,sNx+OLx |
| 331 |
gCheaptracer(i,j,bi,bj)=0. _d 0 |
| 332 |
uTrans(i,j)=uwind(i,j,bi,bj) |
| 333 |
vTrans(i,j)=vwind(i,j,bi,bj) |
| 334 |
ENDDO |
| 335 |
ENDDO |
| 336 |
CALL GAD_2d_CALC_RHS( |
| 337 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, |
| 338 |
I uTrans, vTrans, |
| 339 |
I uwind, vwind, |
| 340 |
I cheapaml_kdiff, Cheaptracer, |
| 341 |
I deltaTtracer, zu, useFluxLimit, |
| 342 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 343 |
O wwind, |
| 344 |
U gCheaptracer, |
| 345 |
I myTime, myIter, myThid ) |
| 346 |
startAB = cheapTracStartAB + nt - 1 |
| 347 |
CALL ADAMS_BASHFORTH2( |
| 348 |
I bi, bj, 1, 1, |
| 349 |
U gCheaptracer, gCheaptracerm, tmpFld, |
| 350 |
I startAB, myIter, myThid ) |
| 351 |
CALL CHEAPAML_TIMESTEP( |
| 352 |
I bi, bj, 1-OLx,sNx+OLx, 1-OLy,sNy+OLy, deltaTtracer, |
| 353 |
I gCheaptracer, |
| 354 |
U Cheaptracer, |
| 355 |
I nt, myIter, myThid ) |
| 356 |
C close bi, bj loops |
| 357 |
ENDDO |
| 358 |
ENDDO |
| 359 |
C update edges |
| 360 |
_EXCH_XY_RL(Cheaptracer,mythid) |
| 361 |
ENDIF ! if use tracer |
| 362 |
|
| 363 |
C reset boundaries to open boundary profile |
| 364 |
IF ( .NOT.(cheapamlXperiodic.AND.cheapamlYperiodic) ) THEN |
| 365 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 366 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 367 |
CALL CHEAPAML_COPY_EDGES( |
| 368 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 369 |
I Tr(1-OLx,1-OLy,bi,bj), |
| 370 |
U Tair(1-OLx,1-OLy,bi,bj), |
| 371 |
I bi, bj, myIter, myThid ) |
| 372 |
IF (useFreshWaterFlux) THEN |
| 373 |
CALL CHEAPAML_COPY_EDGES( |
| 374 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 375 |
I qr(1-OLx,1-OLy,bi,bj), |
| 376 |
U qair(1-OLx,1-OLy,bi,bj), |
| 377 |
I bi, bj, myIter, myThid ) |
| 378 |
ENDIF |
| 379 |
IF (useCheapTracer) THEN |
| 380 |
CALL CHEAPAML_COPY_EDGES( |
| 381 |
I cheapamlXperiodic, cheapamlYperiodic, |
| 382 |
I CheaptracerR(1-OLx,1-OLy,bi,bj), |
| 383 |
U Cheaptracer(1-OLx,1-OLy,bi,bj), |
| 384 |
I bi, bj, myIter, myThid ) |
| 385 |
ENDIF |
| 386 |
ENDDO |
| 387 |
ENDDO |
| 388 |
ENDIF |
| 389 |
|
| 390 |
C-- end loop on nt (short time-step loop) |
| 391 |
ENDDO |
| 392 |
IF ( writeDbug ) THEN |
| 393 |
WRITE(sufx,'(I10.10)') myIter |
| 394 |
CALL WRITE_FLD_XY_RL('tAir_afAdv.', sufx, Tair, myIter, myThid ) |
| 395 |
IF (useFreshWaterFlux) |
| 396 |
& CALL WRITE_FLD_XY_RL('qAir_afAdv.', sufx, qair, myIter, myThid ) |
| 397 |
ENDIF |
| 398 |
|
| 399 |
C cycling on short atmospheric time step is now done |
| 400 |
|
| 401 |
C now continue with diabatic forcing |
| 402 |
c iMin = 1-OLx |
| 403 |
c iMax = sNx+OLx-1 |
| 404 |
c jMin = 1-OLy |
| 405 |
c jMax = sNy+OLy-1 |
| 406 |
iMin = 1 |
| 407 |
iMax = sNx |
| 408 |
jMin = 1 |
| 409 |
jMax = sNy |
| 410 |
|
| 411 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 412 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 413 |
|
| 414 |
IF ( useThSIce ) THEN |
| 415 |
CALL CHEAPAML_SEAICE( |
| 416 |
I solar(1-OLx,1-OLy,bi,bj), |
| 417 |
I cheapdlongwave(1-OLx,1-OLy,bi,bj), |
| 418 |
I uwind(1-OLx,1-OLy,bi,bj), |
| 419 |
I vwind(1-OLx,1-OLy,bi,bj), lath, |
| 420 |
O fsha, flha, evp, xolw, ssqt, q100, cdq, |
| 421 |
O Tsurf, iceFrac, Qsw(1-OLx,1-OLy,bi,bj), |
| 422 |
I bi, bj, myTime, myIter, myThid ) |
| 423 |
DO j = jMin,jMax |
| 424 |
DO i = iMin,iMax |
| 425 |
uRelWind(i,j) = uwind(i,j,bi,bj)-uVel(i,j,1,bi,bj) |
| 426 |
vRelWind(i,j) = vwind(i,j,bi,bj)-vVel(i,j,1,bi,bj) |
| 427 |
CALL CHEAPAML_COARE3_FLUX( |
| 428 |
I i, j, bi, bj, 0, |
| 429 |
I theta(1-OLx,1-OLy,1,bi,bj), |
| 430 |
I uRelWind, vRelWind, |
| 431 |
O fsha0, flha0, evp_0, |
| 432 |
O xolw0, ssqt0, q100_0, cdq_0, |
| 433 |
O dumArg(1), dumArg(2), dumArg(3), dumArg(4), |
| 434 |
I myIter, myThid ) |
| 435 |
Qnet(i,j,bi,bj) = ( |
| 436 |
& -solar(i,j,bi,bj) |
| 437 |
& +xolw0 - cheapdlongwave(i,j,bi,bj) |
| 438 |
& +fsha0 |
| 439 |
& +flha0 |
| 440 |
& )*maskC(i,j,1,bi,bj) |
| 441 |
EmPmR(i,j,bi,bj) = evp_0 |
| 442 |
icFrac = iceFrac(i,j) |
| 443 |
opFrac = 1. _d 0 - icFrac |
| 444 |
C- Qsw (from FFIELDS.h) has opposite (and annoying) sign convention: |
| 445 |
Qsw(i,j,bi,bj) = - ( icFrac*Qsw(i,j,bi,bj) |
| 446 |
& + opFrac*solar(i,j,bi,bj) ) |
| 447 |
fsha(i,j) = icFrac*fsha(i,j) + opFrac*fsha0 |
| 448 |
flha(i,j) = icFrac*flha(i,j) + opFrac*flha0 |
| 449 |
evp(i,j) = icFrac*evp(i,j) + opFrac*evp_0 |
| 450 |
xolw(i,j) = icFrac*xolw(i,j) + opFrac*xolw0 |
| 451 |
ssqt(i,j) = icFrac*ssqt(i,j) + opFrac*ssqt0 |
| 452 |
q100(i,j) = icFrac*q100(i,j) + opFrac*q100_0 |
| 453 |
cdq(i,j) = icFrac*cdq(i,j) + opFrac*cdq_0 |
| 454 |
ENDDO |
| 455 |
ENDDO |
| 456 |
ELSE |
| 457 |
DO j = jMin,jMax |
| 458 |
DO i = iMin,iMax |
| 459 |
IF (FluxFormula.EQ.'LANL') THEN |
| 460 |
CALL cheapaml_LANL_flux( |
| 461 |
I i, j, bi, bj, |
| 462 |
O fsha(i,j), flha(i,j), evp(i,j), |
| 463 |
O xolw(i,j), ssqt(i,j), q100(i,j) ) |
| 464 |
ELSEIF (FluxFormula.EQ.'COARE3') THEN |
| 465 |
uRelWind(i,j) = uwind(i,j,bi,bj)-uVel(i,j,1,bi,bj) |
| 466 |
vRelWind(i,j) = vwind(i,j,bi,bj)-vVel(i,j,1,bi,bj) |
| 467 |
CALL CHEAPAML_COARE3_FLUX( |
| 468 |
I i, j, bi, bj, 0, |
| 469 |
I theta(1-OLx,1-OLy,1,bi,bj), |
| 470 |
I uRelWind, vRelWind, |
| 471 |
O fsha(i,j), flha(i,j), evp(i,j), |
| 472 |
O xolw(i,j), ssqt(i,j), q100(i,j), cdq(i,j), |
| 473 |
O dumArg(1), dumArg(2), dumArg(3), dumArg(4), |
| 474 |
I myIter, myThid ) |
| 475 |
ENDIF |
| 476 |
IF (useFreshWaterFlux) THEN |
| 477 |
EmPmR(i,j,bi,bj) = evp(i,j) |
| 478 |
ENDIF |
| 479 |
ENDDO |
| 480 |
ENDDO |
| 481 |
ENDIF |
| 482 |
|
| 483 |
DO j = jMin,jMax |
| 484 |
DO i = iMin,iMax |
| 485 |
|
| 486 |
C atmospheric upwelled long wave |
| 487 |
ttt = Tair(i,j,bi,bj)-gamma_blk*(cheaphgrid(i,j,bi,bj)-zt) |
| 488 |
c xalwu = stefan*(ttt+celsius2K)**4*0.5 _d 0 |
| 489 |
xalwu = stefan*(0.5*Tair(i,j,bi,bj)+0.5*ttt+celsius2K)**4 |
| 490 |
& *0.5 _d 0 |
| 491 |
C atmospheric downwelled long wave |
| 492 |
xalwd = stefan*(Tair(i,j,bi,bj)+celsius2K)**4*0.5 _d 0 |
| 493 |
C total flux at upper atmospheric layer interface |
| 494 |
xflu = ( -solar(i,j,bi,bj) + xalwu + flha(i,j) |
| 495 |
& )*xef*maskC(i,j,1,bi,bj) |
| 496 |
C lower flux calculation. |
| 497 |
xfld = ( -solar(i,j,bi,bj) - xalwd + xolw(i,j) |
| 498 |
& + fsha(i,j) + flha(i,j) |
| 499 |
& )*xef*maskC(i,j,1,bi,bj) |
| 500 |
|
| 501 |
IF (useDLongWave) THEN |
| 502 |
xlwnet = xolw(i,j)-cheapdlongwave(i,j,bi,bj) |
| 503 |
ELSE |
| 504 |
C net long wave (see Josey et al. JGR 1997) |
| 505 |
C coef lambda replaced by 0.5+lat/230 |
| 506 |
C convert spec humidity in water vapor pressure (mbar) using coef 1000/0.622=1607.7 |
| 507 |
xlwnet = 0.98 _d 0*stefan*(theta(i,j,1,bi,bj)+celsius2K)**4 |
| 508 |
& *(0.39 _d 0 - 0.05 _d 0*SQRT(qair(i,j,bi,bj)*1607.7 _d 0)) |
| 509 |
& *( oneRL - (halfRL+ABS(yG(i,j,bi,bj))/230. _d 0) |
| 510 |
& *cheapclouds(i,j,bi,bj)**2 ) |
| 511 |
& + 4.0*0.98 _d 0*stefan*(theta(i,j,1,bi,bj)+celsius2K)**3 |
| 512 |
& *(theta(i,j,1,bi,bj)-Tair(i,j,bi,bj)) |
| 513 |
|
| 514 |
c xlwnet = xolw-stefan*(theta(i,j,1,bi,bj)+celsius2K)**4. |
| 515 |
c & *(0.65+11.22*qair(i,j,bi,bj) + 0.25*cheapclouds(i,j,bi,bj) |
| 516 |
c & -8.23*qair(i,j,bi,bj)*cheapclouds(i,j,bi,bj)) |
| 517 |
ENDIF |
| 518 |
C clouds |
| 519 |
c ttt2=Tair(i,j,bi,bj)-1.5*gamma_blk*cheaphgrid(i,j,bi,bj) |
| 520 |
c Fclouds = stefan*ttt2**4*(0.4*cheapclouds(i,j,bi,bj)+1-0.4)/2 |
| 521 |
c ttt2=Tair(i,j,bi,bj)-3*gamma_blk*cheaphgrid(i,j,bi,bj)+celsius2K |
| 522 |
c Fclouds = 0.3*stefan*ttt2**4 + 0.22*xolw*cheapclouds(i,j,bi,bj) |
| 523 |
C add flux divergences into atmospheric temperature tendency |
| 524 |
gTair(i,j,bi,bj)= (xfld-xflu)/cheaphgrid(i,j,bi,bj) |
| 525 |
IF ( .NOT.useThSIce ) THEN |
| 526 |
Qnet(i,j,bi,bj) = ( |
| 527 |
& -solar(i,j,bi,bj) |
| 528 |
c & -xalwd |
| 529 |
c & -Fclouds |
| 530 |
c & +xolw |
| 531 |
& +xlwnet |
| 532 |
& +fsha(i,j) |
| 533 |
& +flha(i,j) |
| 534 |
& )*maskC(i,j,1,bi,bj) |
| 535 |
Qsw(i,j,bi,bj) = -solar(i,j,bi,bj) |
| 536 |
ENDIF |
| 537 |
|
| 538 |
C need to precip? |
| 539 |
IF (useFreshWaterFlux) THEN |
| 540 |
q=q100(i,j) |
| 541 |
C compute saturation specific humidity at atmospheric |
| 542 |
C layer top |
| 543 |
C first, what is the pressure there? |
| 544 |
C ts is surface atmospheric temperature |
| 545 |
ts=Tair(i,j,bi,bj)+gamma_blk*zt+celsius2K |
| 546 |
pt=p0*(1-gamma_blk*cheaphgrid(i,j,bi,bj)/ts) |
| 547 |
& **(gravity/gamma_blk/gasR) |
| 548 |
|
| 549 |
C factor to compute rainfall from specific humidity |
| 550 |
dm=100.*(p0-pt)*recip_gravity |
| 551 |
C Large scale precip |
| 552 |
precip = 0. |
| 553 |
IF ( wwind(i,j,bi,bj).GT.0. .AND. |
| 554 |
& q.GT.ssqt(i,j)*0.7 _d 0 ) THEN |
| 555 |
precip = precip |
| 556 |
& + ( (q-ssqt(i,j)*0.7 _d 0)*dm/cheap_pr2 ) |
| 557 |
& *(wwind(i,j,bi,bj)/0.75 _d -5)**2 |
| 558 |
ENDIF |
| 559 |
|
| 560 |
C Convective precip |
| 561 |
IF (q.GT.0.0214 _d 0 .AND. q.GT.ssqt(i,j)*0.9 _d 0) THEN |
| 562 |
precip = precip + ((q-ssqt(i,j)*0.9 _d 0)*dm/cheap_pr1) |
| 563 |
ENDIF |
| 564 |
|
| 565 |
entrain = cdq(i,j)*q*0.25 |
| 566 |
|
| 567 |
c gqair(i,j,bi,bj)=(evp-precip-entrain)/cheaphgrid(i,j,bi,bj) |
| 568 |
gqair(i,j,bi,bj) = (evp(i,j)-entrain)/cheaphgrid(i,j,bi,bj) |
| 569 |
& /rhoa*maskC(i,j,1,bi,bj) |
| 570 |
EmPmR(i,j,bi,bj) = ( EmPmR(i,j,bi,bj) |
| 571 |
& -precip*1200/cheaphgrid(i,j,bi,bj) |
| 572 |
& )*maskC(i,j,1,bi,bj) |
| 573 |
ENDIF |
| 574 |
|
| 575 |
ENDDO |
| 576 |
ENDDO |
| 577 |
|
| 578 |
C it is not necessary to use the Adams2d subroutine as |
| 579 |
C the forcing is always computed at the current time step. |
| 580 |
C note: full oceanic time step deltaT is used below |
| 581 |
CALL CHEAPAML_TIMESTEP( |
| 582 |
I bi, bj, iMin, iMax, jMin, jMax, deltaT, |
| 583 |
I gTair, |
| 584 |
U Tair, |
| 585 |
I 0, myIter, myThid ) |
| 586 |
C do implicit time stepping over land |
| 587 |
DO j=1-OLy,sNy+OLy |
| 588 |
DO i=1-OLx,sNx+OLx |
| 589 |
dtemp=tr(i,j,bi,bj)-Tair(i,j,bi,bj) |
| 590 |
Tair(i,j,bi,bj)=Tair(i,j,bi,bj)+dtemp*xrelf(i,j,bi,bj) |
| 591 |
ENDDO |
| 592 |
ENDDO |
| 593 |
|
| 594 |
C do water |
| 595 |
IF (useFreshWaterFlux) THEN |
| 596 |
CALL CHEAPAML_TIMESTEP( |
| 597 |
I bi, bj, iMin, iMax, jMin, jMax, deltaT, |
| 598 |
I gqair, |
| 599 |
U qair, |
| 600 |
I 0, myIter, myThid ) |
| 601 |
C do implicit time stepping over land and or buffer |
| 602 |
DO j=1-OLy,sNy+OLy |
| 603 |
DO i=1-OLx,sNx+OLx |
| 604 |
dq=qr(i,j,bi,bj)-qair(i,j,bi,bj) |
| 605 |
qair(i,j,bi,bj)=qair(i,j,bi,bj)+dq*xrelf(i,j,bi,bj) |
| 606 |
IF (qair(i,j,bi,bj).LT.0.0) qair(i,j,bi,bj) = 0.0 _d 0 |
| 607 |
ENDDO |
| 608 |
ENDDO |
| 609 |
ENDIF |
| 610 |
|
| 611 |
C do tracer |
| 612 |
IF (useCheapTracer) THEN |
| 613 |
C do implicit time stepping over land and or buffer |
| 614 |
DO j=1-OLy,sNy+OLy |
| 615 |
DO i=1-OLx,sNx+OLx |
| 616 |
dtr=CheaptracerR(i,j,bi,bj)-Cheaptracer(i,j,bi,bj) |
| 617 |
Cheaptracer(i,j,bi,bj) = Cheaptracer(i,j,bi,bj) |
| 618 |
& + dtr*xrelf(i,j,bi,bj) |
| 619 |
ENDDO |
| 620 |
ENDDO |
| 621 |
ENDIF |
| 622 |
|
| 623 |
#ifdef ALLOW_DIAGNOSTICS |
| 624 |
IF ( useDiagnostics ) THEN |
| 625 |
CALL DIAGNOSTICS_FILL( fsha,'CH_SH ',0,1,2,bi,bj,myThid ) |
| 626 |
CALL DIAGNOSTICS_FILL( flha,'CH_LH ',0,1,2,bi,bj,myThid ) |
| 627 |
ENDIF |
| 628 |
#endif /* ALLOW_DIAGNOSTICS */ |
| 629 |
|
| 630 |
C close bi,bj loops |
| 631 |
ENDDO |
| 632 |
ENDDO |
| 633 |
|
| 634 |
C update edges |
| 635 |
_EXCH_XY_RL(Tair,mythid) |
| 636 |
_EXCH_XY_RS(Qnet,mythid) |
| 637 |
IF (useFreshWaterFlux) THEN |
| 638 |
_EXCH_XY_RL(qair,mythid) |
| 639 |
_EXCH_XY_RS(EmPmR,mythid) |
| 640 |
ENDIF |
| 641 |
IF (useCheapTracer) THEN |
| 642 |
_EXCH_XY_RL(Cheaptracer,mythid) |
| 643 |
ENDIF |
| 644 |
IF (.NOT.useStressOption) THEN |
| 645 |
CALL EXCH_UV_AGRID_3D_RL( ustress, vstress, .TRUE., 1, myThid ) |
| 646 |
ENDIF |
| 647 |
|
| 648 |
C reset edges to open boundary profiles |
| 649 |
c IF ( .NOT.(cheapamlXperiodic.AND.cheapamlYperiodic) ) THEN |
| 650 |
IF ( notUsingXPeriodicity.OR.notUsingYPeriodicity ) THEN |
| 651 |
xIsPeriodic = .NOT.notUsingXPeriodicity |
| 652 |
yIsPeriodic = .NOT.notUsingYPeriodicity |
| 653 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 654 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 655 |
CALL CHEAPAML_COPY_EDGES( |
| 656 |
c I cheapamlXperiodic, cheapamlYperiodic, |
| 657 |
I xIsPeriodic, yIsPeriodic, |
| 658 |
I Tr(1-OLx,1-OLy,bi,bj), |
| 659 |
U Tair(1-OLx,1-OLy,bi,bj), |
| 660 |
I bi, bj, myIter, myThid ) |
| 661 |
IF (useFreshWaterFlux) THEN |
| 662 |
CALL CHEAPAML_COPY_EDGES( |
| 663 |
c I cheapamlXperiodic, cheapamlYperiodic, |
| 664 |
I xIsPeriodic, yIsPeriodic, |
| 665 |
I qr(1-OLx,1-OLy,bi,bj), |
| 666 |
U qair(1-OLx,1-OLy,bi,bj), |
| 667 |
I bi, bj, myIter, myThid ) |
| 668 |
ENDIF |
| 669 |
IF (useCheapTracer) THEN |
| 670 |
CALL CHEAPAML_COPY_EDGES( |
| 671 |
c I cheapamlXperiodic, cheapamlYperiodic, |
| 672 |
I xIsPeriodic, yIsPeriodic, |
| 673 |
I CheaptracerR(1-OLx,1-OLy,bi,bj), |
| 674 |
U Cheaptracer(1-OLx,1-OLy,bi,bj), |
| 675 |
I bi, bj, myIter, myThid ) |
| 676 |
ENDIF |
| 677 |
ENDDO |
| 678 |
ENDDO |
| 679 |
ENDIF |
| 680 |
|
| 681 |
c CALL PLOT_FIELD_XYRS( gTair, 'S/R CHEAPAML gTair',1,myThid) |
| 682 |
c CALL PLOT_FIELD_XYRS( Tair, 'S/R CHEAPAML Tair',1,myThid) |
| 683 |
c CALL PLOT_FIELD_XYRS( Qnet, 'S/R CHEAPAML Qnet',1,myThid) |
| 684 |
|
| 685 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 686 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 687 |
Cswd move wind stresses to u and v points |
| 688 |
DO j = 1-OLy,sNy+OLy |
| 689 |
DO i = 1-OLx+1,sNx+OLx |
| 690 |
fu(i,j,bi,bj) = maskW(i,j,1,bi,bj) |
| 691 |
& *(ustress(i,j,bi,bj)+ustress(i-1,j,bi,bj))*0.5 _d 0 |
| 692 |
ENDDO |
| 693 |
ENDDO |
| 694 |
DO j = 1-OLy+1,sNy+OLy |
| 695 |
DO i = 1-OLx,sNx+OLx |
| 696 |
fv(i,j,bi,bj) = maskS(i,j,1,bi,bj) |
| 697 |
& *(vstress(i,j,bi,bj)+vstress(i,j-1,bi,bj))*0.5 _d 0 |
| 698 |
ENDDO |
| 699 |
ENDDO |
| 700 |
|
| 701 |
C-- end bi,bj loops |
| 702 |
ENDDO |
| 703 |
ENDDO |
| 704 |
|
| 705 |
#endif /* ALLOW_SEAGER */ |
| 706 |
|
| 707 |
#ifdef ALLOW_DIAGNOSTICS |
| 708 |
IF ( useDiagnostics ) THEN |
| 709 |
CALL DIAGNOSTICS_FILL(uwind, 'CH_Uwind',0,1,0,1,1,myThid) |
| 710 |
CALL DIAGNOSTICS_FILL(vwind, 'CH_Vwind',0,1,0,1,1,myThid) |
| 711 |
CALL DIAGNOSTICS_FILL_RS(Qnet,'CH_QNET ',0,1,0,1,1,myThid) |
| 712 |
IF (useFreshWaterFlux) |
| 713 |
& CALL DIAGNOSTICS_FILL_RS(EmPmR,'CH_EmP ',0,1,0,1,1,myThid) |
| 714 |
IF (useCheapTracer) THEN |
| 715 |
CALL DIAGNOSTICS_FILL(Cheaptracer,'CH_Trace',0,1,0,1,1,myThid) |
| 716 |
ENDIF |
| 717 |
ENDIF |
| 718 |
#endif /* ALLOW_DIAGNOSTICS */ |
| 719 |
|
| 720 |
c DO bj=myByLo(myThid),myByHi(myThid) |
| 721 |
c DO bi=myBxLo(myThid),myBxHi(myThid) |
| 722 |
c DO j = 1-OLy,sNy+OLy |
| 723 |
c DO i = 1-OLx+1,sNx+OLx |
| 724 |
c fu(i,j,bi,bj) = 0.0 |
| 725 |
c fv(i,j,bi,bj) = 0.0 |
| 726 |
c Qnet(i,j,bi,bj) = 0.0 |
| 727 |
c EmPmR(i,j,bi,bj) = 0.0 |
| 728 |
c ENDDO |
| 729 |
c ENDDO |
| 730 |
c ENDDO |
| 731 |
c ENDDO |
| 732 |
|
| 733 |
RETURN |
| 734 |
END |
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