| 1 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/dynamics.F,v 1.8 1998/05/25 20:05:55 cnh Exp $ |
| 2 |
|
| 3 |
#include "CPP_EEOPTIONS.h" |
| 4 |
|
| 5 |
SUBROUTINE DYNAMICS(myTime, myIter, myThid) |
| 6 |
C /==========================================================\ |
| 7 |
C | SUBROUTINE DYNAMICS | |
| 8 |
C | o Controlling routine for the explicit part of the model | |
| 9 |
C | dynamics. | |
| 10 |
C |==========================================================| |
| 11 |
C | This routine evaluates the "dynamics" terms for each | |
| 12 |
C | block of ocean in turn. Because the blocks of ocean have | |
| 13 |
C | overlap regions they are independent of one another. | |
| 14 |
C | If terms involving lateral integrals are needed in this | |
| 15 |
C | routine care will be needed. Similarly finite-difference | |
| 16 |
C | operations with stencils wider than the overlap region | |
| 17 |
C | require special consideration. | |
| 18 |
C | Notes | |
| 19 |
C | ===== | |
| 20 |
C | C*P* comments indicating place holders for which code is | |
| 21 |
C | presently being developed. | |
| 22 |
C \==========================================================/ |
| 23 |
|
| 24 |
C == Global variables === |
| 25 |
#include "SIZE.h" |
| 26 |
#include "EEPARAMS.h" |
| 27 |
#include "CG2D.h" |
| 28 |
#include "PARAMS.h" |
| 29 |
#include "DYNVARS.h" |
| 30 |
|
| 31 |
C == Routine arguments == |
| 32 |
C myTime - Current time in simulation |
| 33 |
C myIter - Current iteration number in simulation |
| 34 |
C myThid - Thread number for this instance of the routine. |
| 35 |
INTEGER myThid |
| 36 |
_RL myTime |
| 37 |
INTEGER myIter |
| 38 |
|
| 39 |
C == Local variables |
| 40 |
C xA, yA - Per block temporaries holding face areas |
| 41 |
C uTrans, vTrans, wTrans - Per block temporaries holding flow transport |
| 42 |
C o uTrans: Zonal transport |
| 43 |
C o vTrans: Meridional transport |
| 44 |
C o wTrans: Vertical transport |
| 45 |
C maskC,maskUp o maskC: land/water mask for tracer cells |
| 46 |
C o maskUp: land/water mask for W points |
| 47 |
C aTerm, xTerm, cTerm - Work arrays for holding separate terms in |
| 48 |
C mTerm, pTerm, tendency equations. |
| 49 |
C fZon, fMer, fVer[STUV] o aTerm: Advection term |
| 50 |
C o xTerm: Mixing term |
| 51 |
C o cTerm: Coriolis term |
| 52 |
C o mTerm: Metric term |
| 53 |
C o pTerm: Pressure term |
| 54 |
C o fZon: Zonal flux term |
| 55 |
C o fMer: Meridional flux term |
| 56 |
C o fVer: Vertical flux term - note fVer |
| 57 |
C is "pipelined" in the vertical |
| 58 |
C so we need an fVer for each |
| 59 |
C variable. |
| 60 |
C iMin, iMax - Ranges and sub-block indices on which calculations |
| 61 |
C jMin, jMax are applied. |
| 62 |
C bi, bj |
| 63 |
C k, kUp, kDown, kM1 - Index for layer above and below. kUp and kDown |
| 64 |
C are switched with layer to be the appropriate index |
| 65 |
C into fVerTerm |
| 66 |
_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 67 |
_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 68 |
_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 69 |
_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 70 |
_RL wTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 71 |
_RS maskC (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 72 |
_RS maskUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 73 |
_RL aTerm (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 74 |
_RL xTerm (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 75 |
_RL cTerm (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 76 |
_RL mTerm (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 77 |
_RL pTerm (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 78 |
_RL fZon (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 79 |
_RL fMer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 80 |
_RL fVerT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
| 81 |
_RL fVerS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
| 82 |
_RL fVerU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
| 83 |
_RL fVerV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
| 84 |
_RL pH (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
| 85 |
_RL rhokm1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 86 |
_RL rhokp1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 87 |
_RL pSurfX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 88 |
_RL pSurfY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 89 |
_RL K13 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
| 90 |
_RL K23 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
| 91 |
_RL K33 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
| 92 |
_RL KapGM (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 93 |
INTEGER iMin, iMax |
| 94 |
INTEGER jMin, jMax |
| 95 |
INTEGER bi, bj |
| 96 |
INTEGER i, j |
| 97 |
INTEGER k, kM1, kUp, kDown |
| 98 |
|
| 99 |
C-- Set up work arrays with valid (i.e. not NaN) values |
| 100 |
C These inital values do not alter the numerical results. They |
| 101 |
C just ensure that all memory references are to valid floating |
| 102 |
C point numbers. This prevents spurious hardware signals due to |
| 103 |
C uninitialised but inert locations. |
| 104 |
DO j=1-OLy,sNy+OLy |
| 105 |
DO i=1-OLx,sNx+OLx |
| 106 |
xA(i,j) = 0. _d 0 |
| 107 |
yA(i,j) = 0. _d 0 |
| 108 |
uTrans(i,j) = 0. _d 0 |
| 109 |
vTrans(i,j) = 0. _d 0 |
| 110 |
aTerm(i,j) = 0. _d 0 |
| 111 |
xTerm(i,j) = 0. _d 0 |
| 112 |
cTerm(i,j) = 0. _d 0 |
| 113 |
mTerm(i,j) = 0. _d 0 |
| 114 |
pTerm(i,j) = 0. _d 0 |
| 115 |
fZon(i,j) = 0. _d 0 |
| 116 |
fMer(i,j) = 0. _d 0 |
| 117 |
DO K=1,nZ |
| 118 |
pH (i,j,k) = 0. _d 0 |
| 119 |
K13(i,j,k) = 0. _d 0 |
| 120 |
K23(i,j,k) = 0. _d 0 |
| 121 |
K33(i,j,k) = 0. _d 0 |
| 122 |
ENDDO |
| 123 |
rhokm1(i,j) = 0. _d 0 |
| 124 |
rhokp1(i,j) = 0. _d 0 |
| 125 |
ENDDO |
| 126 |
ENDDO |
| 127 |
|
| 128 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 129 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 130 |
|
| 131 |
C-- Boundary condition on hydrostatic pressure is pH(z=0)=0 |
| 132 |
DO j=1-OLy,sNy+OLy |
| 133 |
DO i=1-OLx,sNx+OLx |
| 134 |
pH(i,j,1) = 0. _d 0 |
| 135 |
K13(i,j,1) = 0. _d 0 |
| 136 |
K23(i,j,1) = 0. _d 0 |
| 137 |
K33(i,j,1) = 0. _d 0 |
| 138 |
KapGM(i,j) = 0. _d 0 |
| 139 |
ENDDO |
| 140 |
ENDDO |
| 141 |
|
| 142 |
C-- Set up work arrays that need valid initial values |
| 143 |
DO j=1-OLy,sNy+OLy |
| 144 |
DO i=1-OLx,sNx+OLx |
| 145 |
wTrans(i,j) = 0. _d 0 |
| 146 |
fVerT(i,j,1) = 0. _d 0 |
| 147 |
fVerT(i,j,2) = 0. _d 0 |
| 148 |
fVerS(i,j,1) = 0. _d 0 |
| 149 |
fVerS(i,j,2) = 0. _d 0 |
| 150 |
fVerU(i,j,1) = 0. _d 0 |
| 151 |
fVerU(i,j,2) = 0. _d 0 |
| 152 |
fVerV(i,j,1) = 0. _d 0 |
| 153 |
fVerV(i,j,2) = 0. _d 0 |
| 154 |
ENDDO |
| 155 |
ENDDO |
| 156 |
|
| 157 |
iMin = 1-OLx+1 |
| 158 |
iMax = sNx+OLx |
| 159 |
jMin = 1-OLy+1 |
| 160 |
jMax = sNy+OLy |
| 161 |
|
| 162 |
C-- Calculate gradient of surface pressure |
| 163 |
CALL GRAD_PSURF( |
| 164 |
I bi,bj,iMin,iMax,jMin,jMax, |
| 165 |
O pSurfX,pSurfY, |
| 166 |
I myThid) |
| 167 |
|
| 168 |
C-- Update fields in top level according to tendency terms |
| 169 |
CALL TIMESTEP( |
| 170 |
I bi,bj,iMin,iMax,jMin,jMax,1,pSurfX,pSurfY,myThid) |
| 171 |
|
| 172 |
C-- Density of 1st level (below W(1)) reference to level 1 |
| 173 |
CALL FIND_RHO( |
| 174 |
I bi, bj, iMin, iMax, jMin, jMax, 1, 1, 'LINEAR', |
| 175 |
O rhoKm1, |
| 176 |
I myThid ) |
| 177 |
C-- Integrate hydrostatic balance for pH with BC of pH(z=0)=0 |
| 178 |
CALL CALC_PH( |
| 179 |
I bi,bj,iMin,iMax,jMin,jMax,1,rhoKm1,rhoKm1, |
| 180 |
U pH, |
| 181 |
I myThid ) |
| 182 |
|
| 183 |
DO K=2,Nz |
| 184 |
C-- Update fields in Kth level according to tendency terms |
| 185 |
CALL TIMESTEP( |
| 186 |
I bi,bj,iMin,iMax,jMin,jMax,K,pSurfX,pSurfY,myThid) |
| 187 |
C-- Density of K-1 level (above W(K)) reference to K level |
| 188 |
CALL FIND_RHO( |
| 189 |
I bi, bj, iMin, iMax, jMin, jMax, K-1, K, 'LINEAR', |
| 190 |
O rhoKm1, |
| 191 |
I myThid ) |
| 192 |
C-- Density of K level (below W(K)) reference to K level |
| 193 |
CALL FIND_RHO( |
| 194 |
I bi, bj, iMin, iMax, jMin, jMax, K, K, 'LINEAR', |
| 195 |
O rhoKp1, |
| 196 |
I myThid ) |
| 197 |
C-- Calculate iso-neutral slopes for the GM/Redi parameterisation |
| 198 |
CALL CALC_ISOSLOPES( |
| 199 |
I bi, bj, iMin, iMax, jMin, jMax, K, |
| 200 |
I rhoKm1, rhoKp1, |
| 201 |
O K13, K23, K33, KapGM, |
| 202 |
I myThid ) |
| 203 |
C-- Calculate static stability and mix where convectively unstable |
| 204 |
CALL CONVECT( |
| 205 |
I bi,bj,iMin,iMax,jMin,jMax,K,rhoKm1,rhoKp1, |
| 206 |
I myTime,myIter,myThid) |
| 207 |
C-- Density of K-1 level (above W(K)) reference to K-1 level |
| 208 |
CALL FIND_RHO( |
| 209 |
I bi, bj, iMin, iMax, jMin, jMax, K-1, K-1, 'LINEAR', |
| 210 |
O rhoKm1, |
| 211 |
I myThid ) |
| 212 |
C-- Density of K level (below W(K)) referenced to K level |
| 213 |
CALL FIND_RHO( |
| 214 |
I bi, bj, iMin, iMax, jMin, jMax, K, K, 'LINEAR', |
| 215 |
O rhoKp1, |
| 216 |
I myThid ) |
| 217 |
C-- Integrate hydrostatic balance for pH with BC of pH(z=0)=0 |
| 218 |
CALL CALC_PH( |
| 219 |
I bi,bj,iMin,iMax,jMin,jMax,K,rhoKm1,rhoKp1, |
| 220 |
U pH, |
| 221 |
I myThid ) |
| 222 |
|
| 223 |
ENDDO |
| 224 |
|
| 225 |
DO K = Nz, 1, -1 |
| 226 |
kM1 =max(1,k-1) ! Points to level above k (=k-1) |
| 227 |
kUp =1+MOD(k+1,2) ! Cycles through 1,2 to point to layer above |
| 228 |
kDown=1+MOD(k,2) ! Cycles through 2,1 to point to current layer |
| 229 |
iMin = 1-OLx+2 |
| 230 |
iMax = sNx+OLx-1 |
| 231 |
jMin = 1-OLy+2 |
| 232 |
jMax = sNy+OLy-1 |
| 233 |
|
| 234 |
C-- Get temporary terms used by tendency routines |
| 235 |
CALL CALC_COMMON_FACTORS ( |
| 236 |
I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
| 237 |
O xA,yA,uTrans,vTrans,wTrans,maskC,maskUp, |
| 238 |
I myThid) |
| 239 |
|
| 240 |
C-- Calculate accelerations in the momentum equations |
| 241 |
IF ( momStepping ) THEN |
| 242 |
CALL CALC_MOM_RHS( |
| 243 |
I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
| 244 |
I xA,yA,uTrans,vTrans,wTrans,maskC, |
| 245 |
I pH, |
| 246 |
U aTerm,xTerm,cTerm,mTerm,pTerm, |
| 247 |
U fZon, fMer, fVerU, fVerV, |
| 248 |
I myThid) |
| 249 |
ENDIF |
| 250 |
|
| 251 |
C-- Calculate active tracer tendencies |
| 252 |
IF ( tempStepping ) THEN |
| 253 |
CALL CALC_GT( |
| 254 |
I bi,bj,iMin,iMax,jMin,jMax, k,kM1,kUp,kDown, |
| 255 |
I xA,yA,uTrans,vTrans,wTrans,maskUp, |
| 256 |
I K13,K23,K33,KapGM, |
| 257 |
U aTerm,xTerm,fZon,fMer,fVerT, |
| 258 |
I myThid) |
| 259 |
ENDIF |
| 260 |
Cdbg CALL CALC_GS( |
| 261 |
Cdbg I bi,bj,iMin,iMax,jMin,jMax, k,kM1,kUp,kDown, |
| 262 |
Cdbg I xA,yA,uTrans,vTrans,wTrans,maskUp, |
| 263 |
Cdbg I K13,K23,K33,KapGM, |
| 264 |
Cdbg U aTerm,xTerm,fZon,fMer,fVerS, |
| 265 |
Cdbg I myThid) |
| 266 |
|
| 267 |
ENDDO |
| 268 |
|
| 269 |
ENDDO |
| 270 |
ENDDO |
| 271 |
|
| 272 |
!dbg write(0,*) 'dynamics: pS',minval(cg2d_x),maxval(cg2d_x) |
| 273 |
!dbg write(0,*) 'dynamics: U',minval(uVel(1:sNx,1:sNy,:,:,:)), |
| 274 |
!dbg & maxval(uVel(1:sNx,1:sNy,:,:,:)) |
| 275 |
!dbg write(0,*) 'dynamics: V',minval(vVel(1:sNx,1:sNy,:,:,:)), |
| 276 |
!dbg & maxval(vVel(1:sNx,1:sNy,:,:,:)) |
| 277 |
!dbg write(0,*) 'dynamics: gT',minval(gT(1:sNx,1:sNy,:,:,:)), |
| 278 |
!dbg & maxval(gT(1:sNx,1:sNy,:,:,:)) |
| 279 |
!dbg write(0,*) 'dynamics: T',minval(Theta(1:sNx,1:sNy,:,:,:)), |
| 280 |
!dbg & maxval(Theta(1:sNx,1:sNy,:,:,:)) |
| 281 |
!dbg write(0,*) 'dynamics: pH',minval(pH/(Gravity*Rhonil)), |
| 282 |
!dbg & maxval(pH/(Gravity*Rhonil)) |
| 283 |
|
| 284 |
RETURN |
| 285 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph