| 1 | C $Header:  $ | 
| 2 | C $Name:  $ | 
| 3 |  | 
| 4 | #include "LAYERS_OPTIONS.h" | 
| 5 |  | 
| 6 | C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| | 
| 7 |  | 
| 8 | SUBROUTINE LAYERS_CALC( | 
| 9 | I    myTime, myIter, myThid ) | 
| 10 |  | 
| 11 | C =================================================================== | 
| 12 | C     Calculate the transport in isopycnal layers. | 
| 13 | C     This is the meat of the LAYERS package. | 
| 14 | C =================================================================== | 
| 15 |  | 
| 16 | IMPLICIT NONE | 
| 17 | #include "SIZE.h" | 
| 18 | #include "GRID.h" | 
| 19 | #include "DYNVARS.h" | 
| 20 | #include "EEPARAMS.h" | 
| 21 | #include "PARAMS.h" | 
| 22 | #include "LAYERS_SIZE.h" | 
| 23 | #include "LAYERS.h" | 
| 24 |  | 
| 25 | C  INPUT PARAMETERS: | 
| 26 | C     bi, bj - array indices on which to apply calculations | 
| 27 | C     myTime - Current time in simulati | 
| 28 | C     myThid ::  my Thread Id number | 
| 29 | INTEGER bi, bj, myTime, myIter, myThid | 
| 30 |  | 
| 31 | #ifdef ALLOW_LAYERS | 
| 32 |  | 
| 33 | C     === Local variables === | 
| 34 | C     i,j      :: horizontal indices | 
| 35 | C     k        :: vertical index for model grid | 
| 36 | C     kci      :: index from CellIndex | 
| 37 | C     kg       :: index for looping though layers_G | 
| 38 | C     kk       :: vertical index for ZZ (fine) grid | 
| 39 | C     kgu,kgv  :: vertical index for isopycnal grid | 
| 40 | C     TatV     :: temperature at U point | 
| 41 | C     TatV     :: temperature at V point | 
| 42 |  | 
| 43 | INTEGER i,j,k,kk,kg,kci | 
| 44 | INTEGER kgu(sNx+1,sNy+1), kgv(sNx+1,sNy+1) | 
| 45 | _RL TatU, TatV | 
| 46 | CHARACTER*(MAX_LEN_MBUF) msgBuf | 
| 47 |  | 
| 48 | C --- The thread loop | 
| 49 | DO bj=myByLo(myThid),myByHi(myThid) | 
| 50 | DO bi=myBxLo(myThid),myBxHi(myThid) | 
| 51 |  | 
| 52 | C     Initialize the serach indices | 
| 53 | DO j = 1,sNy+1 | 
| 54 | DO i = 1,sNx+1 | 
| 55 | C       The temperature index (layer_G) goes from cold to warm. | 
| 56 | C       The water column goes from warm (k=1) to cold (k=Nr). | 
| 57 | C       So initialize the search with the warmest value. | 
| 58 | kgu(i,j) = Nlayers | 
| 59 | kgv(i,j) = Nlayers | 
| 60 | ENDDO | 
| 61 | ENDDO | 
| 62 |  | 
| 63 | C     Reset the arrays | 
| 64 | DO kg=1,Nlayers | 
| 65 | DO j = 1,sNy+1 | 
| 66 | DO i = 1,sNx+1 | 
| 67 | #ifdef LAYERS_UFLUX | 
| 68 | layers_UFlux(i,j,kg,bi,bj) = 0. _d 0 | 
| 69 | #ifdef LAYERS_THICKNESS | 
| 70 | layers_HU(i,j,kg,bi,bj) = 0. _d 0 | 
| 71 | #endif /* LAYERS_THICKNESS */ | 
| 72 | #endif /* LAYERS_UFLUX */ | 
| 73 | #ifdef LAYERS_VFLUX | 
| 74 | layers_VFlux(i,j,kg,bi,bj) = 0. _d 0 | 
| 75 | #ifdef LAYERS_THICKNESS | 
| 76 | layers_HV(i,j,kg,bi,bj) = 0. _d 0 | 
| 77 | #endif /* LAYERS_THICKNESS */ | 
| 78 | #endif /* LAYERS_VFLUX */ | 
| 79 | ENDDO | 
| 80 | ENDDO | 
| 81 | ENDDO | 
| 82 |  | 
| 83 | C      _RL  theta(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) | 
| 84 | C     Sometimes it is done this way | 
| 85 | C      DO j=1-Oly+1,sNy+Oly-1 | 
| 86 | C       DO i=1-Olx+1,sNx+Olx-1 | 
| 87 | DO kk=1,NZZ | 
| 88 | k = MapIndex(kk) | 
| 89 | kci = CellIndex(kk) | 
| 90 | DO j = 1,sNy+1 | 
| 91 | DO i = 1,sNx+1 | 
| 92 |  | 
| 93 | #ifdef LAYERS_UFLUX | 
| 94 | C ------ Find theta at the U point (west) on the fine Z grid | 
| 95 | TatU = MapFact(kk) * | 
| 96 | &    0.5 _d 0 * (theta(i-1,j,k,bi,bj)+theta(i,j,k,bi,bj)) + | 
| 97 | &    (1-MapFact(kk)) * | 
| 98 | &    0.5 _d 0 * (theta(i-1,j,k+1,bi,bj)+theta(i,j,k+1,bi,bj)) | 
| 99 |  | 
| 100 | C ------ Now that we know T everywhere, determine the binning. | 
| 101 |  | 
| 102 | IF (TatU .GE. layers_G(Nlayers)) THEN | 
| 103 | C        the point is in the hottest bin or hotter | 
| 104 | kgu(i,j) = Nlayers | 
| 105 | ELSE IF (TatU .LT. layers_G(2)) THEN | 
| 106 | C        the point is in the coldest bin or colder | 
| 107 | kgu(i,j) = 1 | 
| 108 | ELSE IF ( (TatU .GE. layers_G(kgu(i,j))) | 
| 109 | &    .AND. (TatU .LT. layers_G(kgu(i,j)+1)) ) THEN | 
| 110 | C        already on the right bin -- do nothing | 
| 111 | ELSE IF (TatU .GE. layers_G(kgu(i,j))) THEN | 
| 112 | C        have to hunt for the right bin by getting hotter | 
| 113 | DO WHILE (TatU .GE. layers_G(kgu(i,j)+1)) | 
| 114 | kgu(i,j) = kgu(i,j) + 1 | 
| 115 | ENDDO | 
| 116 | C         now layers_G(kgu(i,j)+1) < TatU <= layers_G(kgu(i,j)+1) | 
| 117 | ELSE IF (TatU .LT. layers_G(kgu(i,j)+1)) THEN | 
| 118 | C        have to hunt for the right bin by getting colder | 
| 119 | DO WHILE (TatU .LT. layers_G(kgu(i,j))) | 
| 120 | kgu(i,j) = kgu(i,j) - 1 | 
| 121 | ENDDO | 
| 122 | C         now layers_G(kgu(i,j)+1) <= TatU < layers_G(kgu(i,j)+1) | 
| 123 | ELSE | 
| 124 | C        that should have covered all the options | 
| 125 | WRITE(msgBuf,'(A,1E14.6)') | 
| 126 | &     'S/R LAYERS_CALC: Couldnt find a bin in layers_G for TatU=', | 
| 127 | &     TatU | 
| 128 | CALL PRINT_ERROR( msgBuf, myThid ) | 
| 129 | STOP 'ABNORMAL END: S/R LAYERS_INIT_FIXED' | 
| 130 | END IF | 
| 131 |  | 
| 132 | C ------ Augment the bin values | 
| 133 | layers_UFlux(i,j,kgu(i,j),bi,bj) = | 
| 134 | &    layers_UFlux(i,j,kgu(i,j),bi,bj) + | 
| 135 | &    dZZ * uVel(i,j,kci,bi,bj) * hFacW(i,j,kci,bi,bj) | 
| 136 |  | 
| 137 | #ifdef LAYERS_THICKNESS | 
| 138 | layers_HU(i,j,kgu(i,j),bi,bj) = layers_HU(i,j,kgu(i,j),bi,bj) | 
| 139 | &    + dZZ * hFacW(i,j,kci,bi,bj) | 
| 140 | #endif /* LAYERS_THICKNESS */ | 
| 141 |  | 
| 142 | #endif /* LAYERS_UFLUX */ | 
| 143 |  | 
| 144 | #ifdef LAYERS_VFLUX | 
| 145 | C ------ Find theta at the V point (south) on the fine Z grid | 
| 146 | TatV = MapFact(kk) * | 
| 147 | &    0.5 _d 0 * (theta(i,j-1,k,bi,bj)+theta(i,j,k,bi,bj)) + | 
| 148 | &    (1-MapFact(kk)) * | 
| 149 | &    0.5 _d 0 * (theta(i,j-1,k+1,bi,bj)+theta(i,j,k+1,bi,bj)) | 
| 150 |  | 
| 151 | C ------ Now that we know T everywhere, determine the binning | 
| 152 | IF (TatV .GE. layers_G(Nlayers)) THEN | 
| 153 | C         the point is in the hottest bin or hotter | 
| 154 | kgv(i,j) = Nlayers | 
| 155 | ELSE IF (TatV .LT. layers_G(2)) THEN | 
| 156 | C         the point is in the coldest bin or colder | 
| 157 | kgv(i,j) = 1 | 
| 158 | ELSE IF ( (TatV .GE. layers_G(kgv(i,j))) | 
| 159 | &    .AND. (TatV .LT. layers_G(kgv(i,j)+1)) ) THEN | 
| 160 | C         already on the right bin -- do nothing | 
| 161 | ELSE IF (TatV .GE. layers_G(kgv(i,j))) THEN | 
| 162 | C         have to hunt for the right bin by getting hotter | 
| 163 | DO WHILE (TatV .GE. layers_G(kgv(i,j)+1)) | 
| 164 | kgv(i,j) = kgv(i,j) + 1 | 
| 165 | ENDDO | 
| 166 | C         now layers_G(kgv(i,j)+1) < TatV <= layers_G(kgv(i,j)+1) | 
| 167 | ELSE IF (TatV .LT. layers_G(kgv(i,j)+1)) THEN | 
| 168 | C         have to hunt for the right bin by getting colder | 
| 169 | DO WHILE (TatV .LT. layers_G(kgv(i,j))) | 
| 170 | kgv(i,j) = kgv(i,j) - 1 | 
| 171 | ENDDO | 
| 172 | C         now layers_G(kgv(i,j)+1) <= TatV < layers_G(kgv(i,j)+1) | 
| 173 | ELSE | 
| 174 | C         that should have covered all the options | 
| 175 | WRITE(msgBuf,'(A,1E14.6)') | 
| 176 | &     'S/R LAYERS_CALC: Couldnt find a bin in layers_G for TatV=', | 
| 177 | &     TatV | 
| 178 | CALL PRINT_ERROR( msgBuf, myThid ) | 
| 179 | STOP 'ABNORMAL END: S/R LAYERS_INIT_FIXED' | 
| 180 | END IF | 
| 181 |  | 
| 182 | C ------ Augment the bin values | 
| 183 | layers_VFlux(i,j,kgv(i,j),bi,bj) = | 
| 184 | &    layers_VFlux(i,j,kgv(i,j),bi,bj) | 
| 185 | &    + dZZ * vVel(i,j,kci,bi,bj) * hFacS(i,j,kci,bi,bj) | 
| 186 |  | 
| 187 | #ifdef LAYERS_THICKNESS | 
| 188 | layers_HV(i,j,kgv(i,j),bi,bj) = layers_HV(i,j,kgv(i,j),bi,bj) | 
| 189 | &    + dZZ * hFacS(i,j,kci,bi,bj) | 
| 190 | #endif /* LAYERS_THICKNESS */ | 
| 191 |  | 
| 192 | #endif /* LAYERS_VFLUX */ | 
| 193 |  | 
| 194 | C       k loop | 
| 195 | ENDDO | 
| 196 |  | 
| 197 | ENDDO | 
| 198 | ENDDO | 
| 199 |  | 
| 200 | #ifdef ALLOW_TIMEAVE | 
| 201 | C--   Time-average | 
| 202 | IF ( taveFreq.GT.0. ) THEN | 
| 203 |  | 
| 204 | #ifdef LAYERS_UFLUX | 
| 205 | CALL TIMEAVE_CUMULATE( layers_UFlux_T, layers_UFlux, Nlayers, | 
| 206 | &                          deltaTclock, bi, bj, myThid ) | 
| 207 | #ifdef LAYERS_THICKNESS | 
| 208 | CALL TIMEAVE_CUMULATE( layers_HU_T, layers_HU, Nlayers, | 
| 209 | &                          deltaTclock, bi, bj, myThid ) | 
| 210 | #endif /* LAYERS_THICKNESS */ | 
| 211 | #endif /* LAYERS_UFLUX */ | 
| 212 | #ifdef LAYERS_VFLUX | 
| 213 | CALL TIMEAVE_CUMULATE( layers_VFlux_T, layers_VFlux, Nlayers, | 
| 214 | &                          deltaTclock, bi, bj, myThid ) | 
| 215 | #ifdef LAYERS_THICKNESS | 
| 216 | CALL TIMEAVE_CUMULATE( layers_HV_T, layers_HV, Nlayers, | 
| 217 | &                          deltaTclock, bi, bj, myThid ) | 
| 218 | #endif /* LAYERS_THICKNESS */ | 
| 219 | #endif /* LAYERS_VFLUX */ | 
| 220 |  | 
| 221 | DO kg=1,Nlayers | 
| 222 | layers_TimeAve(kg,bi,bj)=layers_TimeAve(kg,bi,bj)+deltaTclock | 
| 223 | ENDDO | 
| 224 |  | 
| 225 | ENDIF | 
| 226 | #endif /* ALLOW_TIMEAVE */ | 
| 227 |  | 
| 228 | C --- End bi,bj loop | 
| 229 | ENDDO | 
| 230 | ENDDO | 
| 231 |  | 
| 232 | #endif /* ALLOW_LAYERS */ | 
| 233 |  | 
| 234 | RETURN | 
| 235 | END |