| 1 | C $Header: /u/gcmpack/models/MITgcmUV/model/src/external_forcing.F,v 1.12 2001/05/29 14:01:37 adcroft Exp $ | 
| 2 | C $Name:  $ | 
| 3 |  | 
| 4 | #include "CPP_OPTIONS.h" | 
| 5 |  | 
| 6 | CBOP | 
| 7 | C     !ROUTINE: EXTERNAL_FORCING_U | 
| 8 | C     !INTERFACE: | 
| 9 | SUBROUTINE EXTERNAL_FORCING_U( | 
| 10 | I           iMin, iMax, jMin, jMax,bi,bj,kLev, | 
| 11 | I           myCurrentTime,myThid) | 
| 12 | C     !DESCRIPTION: \bv | 
| 13 | C     *==========================================================* | 
| 14 | C     | S/R EXTERNAL_FORCING_U | 
| 15 | C     | o Contains problem specific forcing for zonal velocity. | 
| 16 | C     *==========================================================* | 
| 17 | C     | Adds terms to gU for forcing by external sources | 
| 18 | C     | e.g. wind stress, bottom friction etc.................. | 
| 19 | C     *==========================================================* | 
| 20 | C     \ev | 
| 21 |  | 
| 22 | C     !USES: | 
| 23 | IMPLICIT NONE | 
| 24 | C     == Global data == | 
| 25 | #include "SIZE.h" | 
| 26 | #include "EEPARAMS.h" | 
| 27 | #include "PARAMS.h" | 
| 28 | #include "GRID.h" | 
| 29 | #include "DYNVARS.h" | 
| 30 | #include "FFIELDS.h" | 
| 31 |  | 
| 32 | C     !INPUT/OUTPUT PARAMETERS: | 
| 33 | C     == Routine arguments == | 
| 34 | C     iMin - Working range of tile for applying forcing. | 
| 35 | C     iMax | 
| 36 | C     jMin | 
| 37 | C     jMax | 
| 38 | C     kLev | 
| 39 | INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj | 
| 40 | _RL myCurrentTime | 
| 41 | INTEGER myThid | 
| 42 |  | 
| 43 | C     !LOCAL VARIABLES: | 
| 44 | C     == Local variables == | 
| 45 | C     Loop counters | 
| 46 | INTEGER I, J | 
| 47 | CEOP | 
| 48 |  | 
| 49 | C--   Forcing term | 
| 50 | C     Add windstress momentum impulse into the top-layer | 
| 51 | IF ( kLev .EQ. 1 ) THEN | 
| 52 | DO j=jMin,jMax | 
| 53 | DO i=iMin,iMax | 
| 54 | gU(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) | 
| 55 | &   +foFacMom*surfaceTendencyU(i,j,bi,bj) | 
| 56 | &   *_maskW(i,j,kLev,bi,bj) | 
| 57 | ENDDO | 
| 58 | ENDDO | 
| 59 | ENDIF | 
| 60 |  | 
| 61 | RETURN | 
| 62 | END | 
| 63 | CBOP | 
| 64 | C     !ROUTINE: EXTERNAL_FORCING_V | 
| 65 | C     !INTERFACE: | 
| 66 | SUBROUTINE EXTERNAL_FORCING_V( | 
| 67 | I           iMin, iMax, jMin, jMax,bi,bj,kLev, | 
| 68 | I           myCurrentTime,myThid) | 
| 69 | C     !DESCRIPTION: \bv | 
| 70 | C     *==========================================================* | 
| 71 | C     | S/R EXTERNAL_FORCING_V | 
| 72 | C     | o Contains problem specific forcing for merid velocity. | 
| 73 | C     *==========================================================* | 
| 74 | C     | Adds terms to gV for forcing by external sources | 
| 75 | C     | e.g. wind stress, bottom friction etc.................. | 
| 76 | C     *==========================================================* | 
| 77 | C     \ev | 
| 78 |  | 
| 79 | C     !USES: | 
| 80 | IMPLICIT NONE | 
| 81 | C     == Global data == | 
| 82 | #include "SIZE.h" | 
| 83 | #include "EEPARAMS.h" | 
| 84 | #include "PARAMS.h" | 
| 85 | #include "GRID.h" | 
| 86 | #include "DYNVARS.h" | 
| 87 | #include "FFIELDS.h" | 
| 88 |  | 
| 89 | C     !INPUT/OUTPUT PARAMETERS: | 
| 90 | C     == Routine arguments == | 
| 91 | C     iMin - Working range of tile for applying forcing. | 
| 92 | C     iMax | 
| 93 | C     jMin | 
| 94 | C     jMax | 
| 95 | C     kLev | 
| 96 | INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj | 
| 97 | _RL myCurrentTime | 
| 98 | INTEGER myThid | 
| 99 |  | 
| 100 | C     !LOCAL VARIABLES: | 
| 101 | C     == Local variables == | 
| 102 | C     Loop counters | 
| 103 | INTEGER I, J | 
| 104 | CEOP | 
| 105 |  | 
| 106 | C--   Forcing term | 
| 107 | C     Add windstress momentum impulse into the top-layer | 
| 108 | IF ( kLev .EQ. 1 ) THEN | 
| 109 | DO j=jMin,jMax | 
| 110 | DO i=iMin,iMax | 
| 111 | gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) | 
| 112 | &   +foFacMom*surfaceTendencyV(i,j,bi,bj) | 
| 113 | &   *_maskS(i,j,kLev,bi,bj) | 
| 114 | ENDDO | 
| 115 | ENDDO | 
| 116 | ENDIF | 
| 117 |  | 
| 118 | RETURN | 
| 119 | END | 
| 120 | CBOP | 
| 121 | C     !ROUTINE: EXTERNAL_FORCING_T | 
| 122 | C     !INTERFACE: | 
| 123 | SUBROUTINE EXTERNAL_FORCING_T( | 
| 124 | I           iMin, iMax, jMin, jMax,bi,bj,kLev, | 
| 125 | I           myCurrentTime,myThid) | 
| 126 | C     !DESCRIPTION: \bv | 
| 127 | C     *==========================================================* | 
| 128 | C     | S/R EXTERNAL_FORCING_T | 
| 129 | C     | o Contains problem specific forcing for temperature. | 
| 130 | C     *==========================================================* | 
| 131 | C     | Adds terms to gT for forcing by external sources | 
| 132 | C     | e.g. heat flux, climatalogical relaxation.............. | 
| 133 | C     *==========================================================* | 
| 134 | C     \ev | 
| 135 |  | 
| 136 | C     !USES: | 
| 137 | IMPLICIT NONE | 
| 138 | C     == Global data == | 
| 139 | #include "SIZE.h" | 
| 140 | #include "EEPARAMS.h" | 
| 141 | #include "PARAMS.h" | 
| 142 | #include "GRID.h" | 
| 143 | #include "DYNVARS.h" | 
| 144 | #include "FFIELDS.h" | 
| 145 | #ifdef SHORTWAVE_HEATING | 
| 146 | integer two | 
| 147 | _RL minusone | 
| 148 | parameter (two=2,minusone=-1.) | 
| 149 | _RL swfracb(two) | 
| 150 | #endif | 
| 151 |  | 
| 152 | C     !INPUT/OUTPUT PARAMETERS: | 
| 153 | C     == Routine arguments == | 
| 154 | C     iMin - Working range of tile for applying forcing. | 
| 155 | C     iMax | 
| 156 | C     jMin | 
| 157 | C     jMax | 
| 158 | C     kLev | 
| 159 | INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj | 
| 160 | _RL myCurrentTime | 
| 161 | INTEGER myThid | 
| 162 | CEndOfInterface | 
| 163 |  | 
| 164 | C     !LOCAL VARIABLES: | 
| 165 | C     == Local variables == | 
| 166 | C     Loop counters | 
| 167 | INTEGER I, J | 
| 168 | CEOP | 
| 169 |  | 
| 170 | C--   Forcing term | 
| 171 | C     Add heat in top-layer | 
| 172 | IF ( kLev .EQ. 1 ) THEN | 
| 173 | DO j=jMin,jMax | 
| 174 | DO i=iMin,iMax | 
| 175 | gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) | 
| 176 | &     +maskC(i,j,kLev,bi,bj)*surfaceTendencyT(i,j,bi,bj) | 
| 177 | ENDDO | 
| 178 | ENDDO | 
| 179 | ENDIF | 
| 180 |  | 
| 181 | #ifdef SHORTWAVE_HEATING | 
| 182 | C Penetrating SW radiation | 
| 183 | swfracb(1)=abs(rF(klev)) | 
| 184 | swfracb(2)=abs(rF(klev+1)) | 
| 185 | call SWFRAC( | 
| 186 | I     two,minusone, | 
| 187 | I     myCurrentTime,myThid, | 
| 188 | O     swfracb) | 
| 189 | DO j=jMin,jMax | 
| 190 | DO i=iMin,iMax | 
| 191 | gT(i,j,klev,bi,bj) = gT(i,j,klev,bi,bj) | 
| 192 | &   -maskC(i,j,klev,bi,bj)*Qsw(i,j,bi,bj)*(swfracb(1)-swfracb(2)) | 
| 193 | &    *recip_Cp*recip_rhoNil*recip_drF(klev) | 
| 194 | ENDDO | 
| 195 | ENDDO | 
| 196 | #endif | 
| 197 | RETURN | 
| 198 | END | 
| 199 | CBOP | 
| 200 | C     !ROUTINE: EXTERNAL_FORCING_S | 
| 201 | C     !INTERFACE: | 
| 202 | SUBROUTINE EXTERNAL_FORCING_S( | 
| 203 | I           iMin, iMax, jMin, jMax,bi,bj,kLev, | 
| 204 | I           myCurrentTime,myThid) | 
| 205 |  | 
| 206 | C     !DESCRIPTION: \bv | 
| 207 | C     *==========================================================* | 
| 208 | C     | S/R EXTERNAL_FORCING_S | 
| 209 | C     | o Contains problem specific forcing for merid velocity. | 
| 210 | C     *==========================================================* | 
| 211 | C     | Adds terms to gS for forcing by external sources | 
| 212 | C     | e.g. fresh-water flux, climatalogical relaxation....... | 
| 213 | C     *==========================================================* | 
| 214 | C     \ev | 
| 215 |  | 
| 216 | C     !USES: | 
| 217 | IMPLICIT NONE | 
| 218 | C     == Global data == | 
| 219 | #include "SIZE.h" | 
| 220 | #include "EEPARAMS.h" | 
| 221 | #include "PARAMS.h" | 
| 222 | #include "GRID.h" | 
| 223 | #include "DYNVARS.h" | 
| 224 | #include "FFIELDS.h" | 
| 225 |  | 
| 226 | C     !INPUT/OUTPUT PARAMETERS: | 
| 227 | C     == Routine arguments == | 
| 228 | C     iMin - Working range of tile for applying forcing. | 
| 229 | C     iMax | 
| 230 | C     jMin | 
| 231 | C     jMax | 
| 232 | C     kLev | 
| 233 | INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj | 
| 234 | _RL myCurrentTime | 
| 235 | INTEGER myThid | 
| 236 |  | 
| 237 | C     !LOCAL VARIABLES: | 
| 238 | C     == Local variables == | 
| 239 | C     Loop counters | 
| 240 | INTEGER I, J | 
| 241 | CEOP | 
| 242 |  | 
| 243 | C--   Forcing term | 
| 244 | C     Add fresh-water in top-layer | 
| 245 | IF ( kLev .EQ. 1 ) THEN | 
| 246 | DO j=jMin,jMax | 
| 247 | DO i=iMin,iMax | 
| 248 | gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) | 
| 249 | &   +maskC(i,j,kLev,bi,bj)*surfaceTendencyS(i,j,bi,bj) | 
| 250 | ENDDO | 
| 251 | ENDDO | 
| 252 | ENDIF | 
| 253 |  | 
| 254 | RETURN | 
| 255 | END |