| 1 |
C $Header: /u/gcmpack/MITgcm/verification/natl_box/code/external_fields_load.F,v 1.5.4.1 2002/11/11 21:18:03 heimbach Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_OPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: EXTERNAL_FIELDS_LOAD |
| 8 |
C !INTERFACE: |
| 9 |
SUBROUTINE EXTERNAL_FIELDS_LOAD( myTime, myIter, myThid ) |
| 10 |
C !DESCRIPTION: \bv |
| 11 |
C *==========================================================* |
| 12 |
C | SUBROUTINE EXTERNAL_FIELDS_LOAD |
| 13 |
C | o Control reading of fields from external source. |
| 14 |
C *==========================================================* |
| 15 |
C | External source field loading routine. |
| 16 |
C | This routine is called every time we want to |
| 17 |
C | load a a set of external fields. The routine decides |
| 18 |
C | which fields to load and then reads them in. |
| 19 |
C | This routine needs to be customised for particular |
| 20 |
C | experiments. |
| 21 |
C | Notes |
| 22 |
C | ===== |
| 23 |
C | Two-dimensional and three-dimensional I/O are handled in |
| 24 |
C | the following way under MITgcmUV. A master thread |
| 25 |
C | performs I/O using system calls. This threads reads data |
| 26 |
C | into a temporary buffer. At present the buffer is loaded |
| 27 |
C | with the entire model domain. This is probably OK for now |
| 28 |
C | Each thread then copies data from the buffer to the |
| 29 |
C | region of the proper array it is responsible for. |
| 30 |
C | ===== |
| 31 |
C | Conversion of flux fields are described in FFIELDS.h |
| 32 |
C *==========================================================* |
| 33 |
C \ev |
| 34 |
|
| 35 |
C !USES: |
| 36 |
IMPLICIT NONE |
| 37 |
C === Global variables === |
| 38 |
#include "SIZE.h" |
| 39 |
#include "EEPARAMS.h" |
| 40 |
#include "PARAMS.h" |
| 41 |
#include "FFIELDS.h" |
| 42 |
#include "GRID.h" |
| 43 |
#include "DYNVARS.h" |
| 44 |
LOGICAL DIFFERENT_MULTIPLE |
| 45 |
EXTERNAL DIFFERENT_MULTIPLE |
| 46 |
|
| 47 |
C !INPUT/OUTPUT PARAMETERS: |
| 48 |
C === Routine arguments === |
| 49 |
C myThid - Thread no. that called this routine. |
| 50 |
C myTime - Simulation time |
| 51 |
C myIter - Simulation timestep number |
| 52 |
INTEGER myThid |
| 53 |
_RL myTime |
| 54 |
INTEGER myIter |
| 55 |
|
| 56 |
|
| 57 |
#ifndef INCLUDE_EXTERNAL_FORCING_PACKAGE |
| 58 |
|
| 59 |
C !LOCAL VARIABLES: |
| 60 |
C === Local arrays === |
| 61 |
C aWght, bWght :: Interpolation weights |
| 62 |
INTEGER bi,bj,i,j,intime0,intime1 |
| 63 |
_RL aWght,bWght,rdt |
| 64 |
INTEGER nForcingPeriods,Imytm,Ifprd,Ifcyc,Iftm |
| 65 |
CEOP |
| 66 |
|
| 67 |
IF ( periodicExternalForcing ) THEN |
| 68 |
|
| 69 |
C First call requires that we initialize everything to zero for safety |
| 70 |
cph has been shifted to ini_forcing.F |
| 71 |
cph arrays are now globally visible |
| 72 |
cph |
| 73 |
cph IF ( myIter .EQ. nIter0 ) THEN |
| 74 |
cph CALL LEF_ZERO( taux0 ,myThid ) |
| 75 |
cph CALL LEF_ZERO( tauy0 ,myThid ) |
| 76 |
cph CALL LEF_ZERO( Qnet0 ,myThid ) |
| 77 |
cph CALL LEF_ZERO( EmPmR0 ,myThid ) |
| 78 |
cph CALL LEF_ZERO( SST0 ,myThid ) |
| 79 |
cph CALL LEF_ZERO( SSS0 ,myThid ) |
| 80 |
cph CALL LEF_ZERO( Qsw0 ,myThid ) |
| 81 |
cph CALL LEF_ZERO( taux1 ,myThid ) |
| 82 |
cph CALL LEF_ZERO( tauy1 ,myThid ) |
| 83 |
cph CALL LEF_ZERO( Qnet1 ,myThid ) |
| 84 |
cph CALL LEF_ZERO( EmPmR1 ,myThid ) |
| 85 |
cph CALL LEF_ZERO( SST1 ,myThid ) |
| 86 |
cph CALL LEF_ZERO( SSS1 ,myThid ) |
| 87 |
cph CALL LEF_ZERO( Qsw1 ,myThid ) |
| 88 |
cph ENDIF |
| 89 |
|
| 90 |
C Now calculate whether it is time to update the forcing arrays |
| 91 |
rdt=1. _d 0 / deltaTclock |
| 92 |
nForcingPeriods=int(externForcingCycle/externForcingPeriod) |
| 93 |
Imytm=int(myTime*rdt) |
| 94 |
Ifprd=int(externForcingPeriod*rdt) |
| 95 |
Ifcyc=int(externForcingCycle*rdt) |
| 96 |
Iftm=mod( Imytm ,Ifcyc) |
| 97 |
|
| 98 |
intime0=int(Iftm/Ifprd) |
| 99 |
intime1=mod(intime0+1,nForcingPeriods) |
| 100 |
aWght=mod(myTime/externForcingPeriod,1.) |
| 101 |
bWght=1.-aWght |
| 102 |
|
| 103 |
intime0=intime0+1 |
| 104 |
intime1=intime1+1 |
| 105 |
|
| 106 |
IF ( |
| 107 |
& Iftm-Ifprd*(intime0-1) .EQ. 0 |
| 108 |
& .OR. myIter .EQ. nIter0 |
| 109 |
& ) THEN |
| 110 |
|
| 111 |
_BEGIN_MASTER(myThid) |
| 112 |
|
| 113 |
C If the above condition is met then we need to read in |
| 114 |
C data for the period ahead and the period behind myTime. |
| 115 |
WRITE(*,*) |
| 116 |
& 'S/R EXTERNAL_FIELDS_LOAD: Reading new data',myTime,myIter |
| 117 |
|
| 118 |
IF ( zonalWindFile .NE. ' ' ) THEN |
| 119 |
CALL MDSREADFIELD ( zonalWindFile, readBinaryPrec, |
| 120 |
& 'RS', 1, taux0, intime0, myThid ) |
| 121 |
CALL MDSREADFIELD ( zonalWindFile, readBinaryPrec, |
| 122 |
& 'RS', 1, taux1, intime1, myThid ) |
| 123 |
ENDIF |
| 124 |
IF ( meridWindFile .NE. ' ' ) THEN |
| 125 |
CALL MDSREADFIELD ( meridWindFile, readBinaryPrec, |
| 126 |
& 'RS', 1, tauy0, intime0, myThid ) |
| 127 |
CALL MDSREADFIELD ( meridWindFile, readBinaryPrec, |
| 128 |
& 'RS', 1, tauy1, intime1, myThid ) |
| 129 |
ENDIF |
| 130 |
IF ( surfQFile .NE. ' ' ) THEN |
| 131 |
CALL MDSREADFIELD ( surfQFile, readBinaryPrec, |
| 132 |
& 'RS', 1, Qnet0, intime0, myThid ) |
| 133 |
CALL MDSREADFIELD ( surfQFile, readBinaryPrec, |
| 134 |
& 'RS', 1, Qnet1, intime1, myThid ) |
| 135 |
ENDIF |
| 136 |
IF ( EmPmRfile .NE. ' ' ) THEN |
| 137 |
CALL MDSREADFIELD ( EmPmRfile, readBinaryPrec, |
| 138 |
& 'RS', 1, EmPmR0, intime0, myThid ) |
| 139 |
CALL MDSREADFIELD ( EmPmRfile, readBinaryPrec, |
| 140 |
& 'RS', 1, EmPmR1, intime1, myThid ) |
| 141 |
ENDIF |
| 142 |
IF ( thetaClimFile .NE. ' ' ) THEN |
| 143 |
CALL MDSREADFIELD ( thetaClimFile, readBinaryPrec, |
| 144 |
& 'RS', 1, SST0, intime0, myThid ) |
| 145 |
CALL MDSREADFIELD ( thetaClimFile, readBinaryPrec, |
| 146 |
& 'RS', 1, SST1, intime1, myThid ) |
| 147 |
ENDIF |
| 148 |
IF ( saltClimFile .NE. ' ' ) THEN |
| 149 |
CALL MDSREADFIELD ( saltClimFile, readBinaryPrec, |
| 150 |
& 'RS', 1, SSS0, intime0, myThid ) |
| 151 |
CALL MDSREADFIELD ( saltClimFile, readBinaryPrec, |
| 152 |
& 'RS', 1, SSS1, intime1, myThid ) |
| 153 |
ENDIF |
| 154 |
#ifdef SHORTWAVE_HEATING |
| 155 |
IF ( surfQswFile .NE. ' ' ) THEN |
| 156 |
CALL MDSREADFIELD ( surfQswFile, readBinaryPrec, |
| 157 |
& 'RS', 1, Qsw0, intime0, myThid ) |
| 158 |
CALL MDSREADFIELD ( surfQswFile, readBinaryPrec, |
| 159 |
& 'RS', 1, Qsw1, intime1, myThid ) |
| 160 |
ENDIF |
| 161 |
#endif |
| 162 |
|
| 163 |
_END_MASTER(myThid) |
| 164 |
C |
| 165 |
_EXCH_XY_R4(SST0 , myThid ) |
| 166 |
_EXCH_XY_R4(SST1 , myThid ) |
| 167 |
_EXCH_XY_R4(SSS0 , myThid ) |
| 168 |
_EXCH_XY_R4(SSS1 , myThid ) |
| 169 |
c _EXCH_XY_R4(taux0 , myThid ) |
| 170 |
c _EXCH_XY_R4(taux1 , myThid ) |
| 171 |
c _EXCH_XY_R4(tauy0 , myThid ) |
| 172 |
c _EXCH_XY_R4(tauy1 , myThid ) |
| 173 |
CALL EXCH_UV_XY_RS(taux0,tauy0,.TRUE.,myThid) |
| 174 |
CALL EXCH_UV_XY_RS(taux1,tauy1,.TRUE.,myThid) |
| 175 |
_EXCH_XY_R4(Qnet0, myThid ) |
| 176 |
_EXCH_XY_R4(Qnet1, myThid ) |
| 177 |
_EXCH_XY_R4(EmPmR0, myThid ) |
| 178 |
_EXCH_XY_R4(EmPmR1, myThid ) |
| 179 |
#ifdef SHORTWAVE_HEATING |
| 180 |
_EXCH_XY_R4(Qsw0, myThid ) |
| 181 |
_EXCH_XY_R4(Qsw1, myThid ) |
| 182 |
#endif |
| 183 |
C |
| 184 |
ENDIF |
| 185 |
|
| 186 |
C-- Interpolate fu,fv,Qnet,EmPmR,SST,SSS,Qsw |
| 187 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 188 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 189 |
DO j=1-Oly,sNy+Oly |
| 190 |
DO i=1-Olx,sNx+Olx |
| 191 |
SST(i,j,bi,bj) = bWght*SST0(i,j,bi,bj) |
| 192 |
& +aWght*SST1(i,j,bi,bj) |
| 193 |
SSS(i,j,bi,bj) = bWght*SSS0(i,j,bi,bj) |
| 194 |
& +aWght*SSS1(i,j,bi,bj) |
| 195 |
fu(i,j,bi,bj) = -(bWght*taux0(i,j,bi,bj) |
| 196 |
& +aWght*taux1(i,j,bi,bj)) |
| 197 |
fv(i,j,bi,bj) = -(bWght*tauy0(i,j,bi,bj) |
| 198 |
& +aWght*tauy1(i,j,bi,bj)) |
| 199 |
Qnet(i,j,bi,bj) = bWght*Qnet0(i,j,bi,bj) |
| 200 |
& +aWght*Qnet1(i,j,bi,bj) |
| 201 |
EmPmR(i,j,bi,bj) = bWght*EmPmR0(i,j,bi,bj) |
| 202 |
& +aWght*EmPmR1(i,j,bi,bj) |
| 203 |
#ifdef SHORTWAVE_HEATING |
| 204 |
Qsw(i,j,bi,bj) = bWght*Qsw0(i,j,bi,bj) |
| 205 |
& +aWght*Qsw1(i,j,bi,bj) |
| 206 |
#endif |
| 207 |
ENDDO |
| 208 |
ENDDO |
| 209 |
ENDDO |
| 210 |
ENDDO |
| 211 |
|
| 212 |
C-- Diagnostics |
| 213 |
cph IF (myThid.EQ.1 .AND. myTime.LT.62208000.) THEN |
| 214 |
cph write(*,'(a,1p7e12.4,2i6,2e12.4)') |
| 215 |
cph & 'time,SST,SSS,fu,fv,Q,E-P,i0,i1,a,b = ', |
| 216 |
cph & myTime, |
| 217 |
cph & SST(1,sNy,1,1),SSS(1,sNy,1,1), |
| 218 |
cph & fu(1,sNy,1,1),fv(1,sNy,1,1), |
| 219 |
cph & Qnet(1,sNy,1,1),EmPmR(1,sNy,1,1), |
| 220 |
cph & intime0,intime1,aWght,bWght |
| 221 |
cph write(*,'(a,1p7e12.4)') |
| 222 |
cph & 'time,fu0,fu1,fu = ', |
| 223 |
cph & myTime, |
| 224 |
cph & taux0(1,sNy,1,1),taux1(1,sNy,1,1),fu(1,sNy,1,1), |
| 225 |
cph & aWght,bWght |
| 226 |
cph ENDIF |
| 227 |
|
| 228 |
C endif for periodicForcing |
| 229 |
ENDIF |
| 230 |
|
| 231 |
#endif /* INCLUDE_EXTERNAL_FORCING_PACKAGE undef */ |
| 232 |
|
| 233 |
RETURN |
| 234 |
END |
| 235 |
|
| 236 |
CBOP |
| 237 |
C !ROUTINE: LEF_ZERO |
| 238 |
C !INTERFACE: |
| 239 |
SUBROUTINE LEF_ZERO( arr ,myThid ) |
| 240 |
C !DESCRIPTION: \bv |
| 241 |
C This routine simply sets the argument array to zero |
| 242 |
C Used only by EXTERNAL_FIELDS_LOAD |
| 243 |
C \ev |
| 244 |
C !USES: |
| 245 |
IMPLICIT NONE |
| 246 |
C === Global variables === |
| 247 |
#include "SIZE.h" |
| 248 |
#include "EEPARAMS.h" |
| 249 |
C !INPUT/OUTPUT PARAMETERS: |
| 250 |
C === Arguments === |
| 251 |
_RS arr (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 252 |
INTEGER myThid |
| 253 |
C !LOCAL VARIABLES: |
| 254 |
C === Local variables === |
| 255 |
INTEGER i,j,bi,bj |
| 256 |
CEOP |
| 257 |
|
| 258 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 259 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 260 |
DO j=1-Oly,sNy+Oly |
| 261 |
DO i=1-Olx,sNx+Olx |
| 262 |
arr(i,j,bi,bj)=0. |
| 263 |
ENDDO |
| 264 |
ENDDO |
| 265 |
ENDDO |
| 266 |
ENDDO |
| 267 |
|
| 268 |
RETURN |
| 269 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph