| 1 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/calc_surf_dr.F,v 1.2 2001/08/30 18:44:59 jmc Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_OPTIONS.h" |
| 5 |
|
| 6 |
CBOP |
| 7 |
C !ROUTINE: CALC_SURF_DR |
| 8 |
C !INTERFACE: |
| 9 |
SUBROUTINE CALC_SURF_DR(etaFld, |
| 10 |
I myTime, myIter, myThid ) |
| 11 |
C !DESCRIPTION: \bv |
| 12 |
C *==========================================================* |
| 13 |
C | SUBROUTINE CALC_SURF_DR |
| 14 |
C | o Calculate the new surface level thickness according to |
| 15 |
C | the surface r-position (Non-Linear Free-Surf) |
| 16 |
C | o take decision if grid box becomes too thin or too thick |
| 17 |
C *==========================================================* |
| 18 |
C \ev |
| 19 |
|
| 20 |
C !USES: |
| 21 |
IMPLICIT NONE |
| 22 |
C == Global variables |
| 23 |
#include "SIZE.h" |
| 24 |
#include "EEPARAMS.h" |
| 25 |
#include "PARAMS.h" |
| 26 |
#include "GRID.h" |
| 27 |
#include "SURFACE.h" |
| 28 |
|
| 29 |
C !INPUT/OUTPUT PARAMETERS: |
| 30 |
C == Routine arguments == |
| 31 |
C myTime :: Current time in simulation |
| 32 |
C myIter :: Current iteration number in simulation |
| 33 |
C myThid :: Thread number for this instance of the routine. |
| 34 |
C etaFld :: current eta field used to update the hFactor |
| 35 |
_RL myTime |
| 36 |
INTEGER myIter |
| 37 |
INTEGER myThid |
| 38 |
_RL etaFld(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
| 39 |
|
| 40 |
#ifdef NONLIN_FRSURF |
| 41 |
|
| 42 |
C !LOCAL VARIABLES: |
| 43 |
C Local variables in common block |
| 44 |
C Rmin_surf :: minimum r_value of the free surface position |
| 45 |
C that satisfy the hFacInf criteria |
| 46 |
COMMON /LOCAL_CALC_SURF_DR/ Rmin_surf |
| 47 |
_RL Rmin_surf(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 48 |
C Local variables |
| 49 |
C i,j,k,bi,bj :: loop counter |
| 50 |
C rSurftmp :: free surface r-position that is used to compute hFac_surf |
| 51 |
C adjust_nb_pt :: Nb of grid points where rSurf is adjusted (hFactInf) |
| 52 |
C adjust_volum :: adjustment effect on the volume (domain size) |
| 53 |
INTEGER i,j,k,bi,bj |
| 54 |
INTEGER ks |
| 55 |
_RL hFacInfMOM, Rmin_tmp, hFactmp, adjust_nb_pt, adjust_volum |
| 56 |
_RL rSurftmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
| 57 |
_RS hhm, hhp |
| 58 |
CHARACTER*(MAX_LEN_MBUF) suff |
| 59 |
CEOP |
| 60 |
|
| 61 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 62 |
|
| 63 |
IF (myIter.EQ.nIter0) THEN |
| 64 |
|
| 65 |
hFacInfMOM = hFacInf |
| 66 |
|
| 67 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 68 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 69 |
|
| 70 |
C-- Initialise arrays : |
| 71 |
DO j=1-Oly,sNy+Oly |
| 72 |
DO i=1-Olx,sNx+Olx |
| 73 |
hFac_surfC(i,j,bi,bj) = 0. |
| 74 |
hFac_surfW(i,j,bi,bj) = 0. |
| 75 |
hFac_surfS(i,j,bi,bj) = 0. |
| 76 |
Rmin_surf(i,j,bi,bj) = Ro_surf(i,j,bi,bj) |
| 77 |
ENDDO |
| 78 |
ENDDO |
| 79 |
|
| 80 |
C-- Compute the mimimum value of r_surf (used for computing hFac_surfC) |
| 81 |
DO j=1,sNy |
| 82 |
DO i=1,sNx |
| 83 |
ks = ksurfC(i,j,bi,bj) |
| 84 |
IF (ks.LE.Nr) THEN |
| 85 |
Rmin_tmp = rF(ks+1) |
| 86 |
IF ( ks.EQ.ksurfW(i,j,bi,bj)) |
| 87 |
& Rmin_tmp = MAX(Rmin_tmp, R_low(i-1,j,bi,bj)) |
| 88 |
IF ( ks.EQ.ksurfW(i+1,j,bi,bj)) |
| 89 |
& Rmin_tmp = MAX(Rmin_tmp, R_low(i+1,j,bi,bj)) |
| 90 |
IF ( ks.EQ.ksurfS(i,j,bi,bj)) |
| 91 |
& Rmin_tmp = MAX(Rmin_tmp, R_low(i,j-1,bi,bj)) |
| 92 |
IF ( ks.EQ.ksurfS(i,j+1,bi,bj)) |
| 93 |
& Rmin_tmp = MAX(Rmin_tmp, R_low(i,j+1,bi,bj)) |
| 94 |
|
| 95 |
Rmin_surf(i,j,bi,bj) = |
| 96 |
& MAX( MAX(rF(ks+1),R_low(i,j,bi,bj)) + hFacInf*drF(ks), |
| 97 |
& Rmin_tmp + hFacInfMOM*drF(ks) |
| 98 |
& ) |
| 99 |
ENDIF |
| 100 |
ENDDO |
| 101 |
ENDDO |
| 102 |
|
| 103 |
C- end bi,bj loop. |
| 104 |
ENDDO |
| 105 |
ENDDO |
| 106 |
|
| 107 |
_EXCH_XY_R8( Rmin_surf, myThid ) |
| 108 |
|
| 109 |
C- end of initialization block |
| 110 |
ENDIF |
| 111 |
|
| 112 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 113 |
|
| 114 |
adjust_nb_pt = 0. |
| 115 |
adjust_volum = 0. |
| 116 |
|
| 117 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 118 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 119 |
|
| 120 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 121 |
C-- Compute the new fractional thickness of surface level (ksurfC): |
| 122 |
|
| 123 |
DO j=0,sNy+1 |
| 124 |
DO i=0,sNx+1 |
| 125 |
rSurftmp(i,j) = Ro_surf(i,j,bi,bj)+etaFld(i,j,bi,bj) |
| 126 |
ks = ksurfC(i,j,bi,bj) |
| 127 |
IF (ks.LE.Nr) THEN |
| 128 |
IF (rSurftmp(i,j) .LT. Rmin_surf(i,j,bi,bj)) THEN |
| 129 |
C-- Needs to do something : |
| 130 |
hFactmp = ( rSurftmp(i,j)-MAX(rF(ks+1),R_low(i,j,bi,bj)) |
| 131 |
& )*recip_drF(ks) |
| 132 |
IF (hFactmp.LT.hFacInf) THEN |
| 133 |
write(0,'(2A,6I4,I10)') 'WARNING: hFacC < hFacInf at:', |
| 134 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
| 135 |
ELSE |
| 136 |
write(0,'(2A,6I4,I10)') 'WARNING: hFac < hFacInf near:', |
| 137 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
| 138 |
ENDIF |
| 139 |
write(0,'(A,2F10.6,1PE14.6)') 'hFac_n-1,hFac_n,eta =', |
| 140 |
& hfacC(i,j,ks,bi,bj), hFactmp, etaFld(i,j,bi,bj) |
| 141 |
C-- Decide to STOP : |
| 142 |
c write(0,'(2A)') 'STOP in CALC_SURF_DR :', |
| 143 |
c & ' too SMALL hFac !' |
| 144 |
c STOP 'ABNORMAL END: S/R CALC_SURF_DR' |
| 145 |
C---------- |
| 146 |
|
| 147 |
C-- Continue with Rmin_surf: |
| 148 |
IF ( i.GE.1.AND.i.LE.sNx .AND. |
| 149 |
& j.GE.1.AND.j.LE.sNy ) THEN |
| 150 |
adjust_nb_pt = adjust_nb_pt + 1. |
| 151 |
adjust_volum = adjust_volum |
| 152 |
& + rA(i,j,bi,bj)*(Rmin_surf(i,j,bi,bj)-rSurftmp(i,j)) |
| 153 |
ENDIF |
| 154 |
rSurftmp(i,j) = Rmin_surf(i,j,bi,bj) |
| 155 |
C---------- |
| 156 |
ENDIF |
| 157 |
|
| 158 |
C-- Set hFac_surfC : |
| 159 |
hFac_surfC(i,j,bi,bj) = |
| 160 |
& ( rSurftmp(i,j) - MAX(rF(ks+1), R_low(i,j,bi,bj)) |
| 161 |
& )*recip_drF(ks)*maskC(i,j,ks,bi,bj) |
| 162 |
|
| 163 |
IF (hFac_surfC(i,j,bi,bj).GT.hFacSup) THEN |
| 164 |
C-- Usefull warning when hFac becomes very large: |
| 165 |
write(0,'(2A,6I4,I10)') 'WARNING: hFacC > hFacSup at:', |
| 166 |
& ' i,j,k,bi,bj,Thid,Iter=',i,j,ks,bi,bj,myThid,myIter |
| 167 |
write(0,'(A,2F10.6,1PE14.6)') 'hFac_n-1,hFac_n,eta =', |
| 168 |
& hfacC(i,j,ks,bi,bj), hFac_surfC(i,j,bi,bj), |
| 169 |
& etaFld(i,j,bi,bj) |
| 170 |
C-- Decide to STOP : |
| 171 |
c write(0,'(2A)') 'STOP in CALC_SURF_DR :', |
| 172 |
c & ' too LARGE hFac !' |
| 173 |
c STOP 'ABNORMAL END: S/R CALC_SURF_DR' |
| 174 |
C---------- |
| 175 |
ENDIF |
| 176 |
ENDIF |
| 177 |
|
| 178 |
ENDDO |
| 179 |
ENDDO |
| 180 |
|
| 181 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 182 |
C-- Compute fractional thickness of surface level, for U & V point: |
| 183 |
|
| 184 |
DO j=1,sNy |
| 185 |
DO i=1,sNx+1 |
| 186 |
ks = ksurfW(i,j,bi,bj) |
| 187 |
IF (ks.LE.Nr) THEN |
| 188 |
hhm = rF(ks) |
| 189 |
IF(ks.EQ.ksurfC(i-1,j,bi,bj)) hhm = rSurftmp(i-1,j) |
| 190 |
hhp = rF(ks) |
| 191 |
IF(ks.EQ.ksurfC(i,j,bi,bj)) hhp = rSurftmp(i,j) |
| 192 |
hFac_surfW(i,j,bi,bj) = |
| 193 |
& ( MIN(hhm,hhp) |
| 194 |
& - MAX(rF(ks+1),R_low(i-1,j,bi,bj),R_low(i,j,bi,bj)) |
| 195 |
& )*recip_drF(ks)*maskW(i,j,ks,bi,bj) |
| 196 |
ENDIF |
| 197 |
ENDDO |
| 198 |
ENDDO |
| 199 |
|
| 200 |
DO j=1,sNy+1 |
| 201 |
DO i=1,sNx |
| 202 |
ks = ksurfS(i,j,bi,bj) |
| 203 |
IF (ks.LE.Nr) THEN |
| 204 |
hhm = rF(ks) |
| 205 |
IF(ks.EQ.ksurfC(i,j-1,bi,bj)) hhm = rSurftmp(i,j-1) |
| 206 |
hhp = rF(ks) |
| 207 |
IF(ks.EQ.ksurfC(i,j,bi,bj)) hhp = rSurftmp(i,j) |
| 208 |
hFac_surfS(i,j,bi,bj) = |
| 209 |
& ( MIN(hhm,hhp) |
| 210 |
& - MAX(rF(ks+1),R_low(i,j-1,bi,bj),R_low(i,j,bi,bj)) |
| 211 |
& )*recip_drF(ks)*maskS(i,j,ks,bi,bj) |
| 212 |
ENDIF |
| 213 |
ENDDO |
| 214 |
ENDDO |
| 215 |
|
| 216 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 217 |
|
| 218 |
C- end bi,bj loop. |
| 219 |
ENDDO |
| 220 |
ENDDO |
| 221 |
|
| 222 |
C-- Global diagnostic : |
| 223 |
_GLOBAL_SUM_R8( adjust_nb_pt , myThid ) |
| 224 |
_GLOBAL_SUM_R8( adjust_volum , myThid ) |
| 225 |
IF (adjust_nb_pt .GE.1.) THEN |
| 226 |
_BEGIN_MASTER( myThid ) |
| 227 |
write(*,'(2(A,I10),1PE16.8)') ' SURF_ADJUSTMENT: Iter=', |
| 228 |
& myIter, ' Nb_pts,Vol=', nint(adjust_nb_pt), adjust_volum |
| 229 |
_END_MASTER( ) |
| 230 |
ENDIF |
| 231 |
|
| 232 |
_EXCH_XY_R4(hFac_surfC, myThid ) |
| 233 |
CALL EXCH_UV_XY_RS(hFac_surfW,hFac_surfS,.FALSE.,myThid) |
| 234 |
|
| 235 |
C----- |
| 236 |
C Note: testing ksurfW,S is equivalent to a full height mask |
| 237 |
C ==> no need for applying the mask here. |
| 238 |
C and with "partial thin wall" ==> mask could be applied in S/R UPDATE_SURF_DR |
| 239 |
C----- |
| 240 |
|
| 241 |
WRITE(suff,'(I10.10)') myIter |
| 242 |
c CALL WRITE_FLD_XY_RS('hFac_surfC.',suff,hFac_surfC, |
| 243 |
c & myIter,myThid) |
| 244 |
|
| 245 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 246 |
#endif /* NONLIN_FRSURF */ |
| 247 |
|
| 248 |
RETURN |
| 249 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph