| 1 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/ini_masks_etc.F,v 1.20.2.6 2001/05/01 13:21:40 adcroft Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "CPP_OPTIONS.h" |
| 5 |
|
| 6 |
CStartOfInterface |
| 7 |
SUBROUTINE INI_MASKS_ETC( myThid ) |
| 8 |
C /==========================================================\ |
| 9 |
C | SUBROUTINE INI_MASKS_ETC | |
| 10 |
C | o Initialise masks and topography factors | |
| 11 |
C |==========================================================| |
| 12 |
C | These arrays are used throughout the code and describe | |
| 13 |
C | the topography of the domain through masks (0s and 1s) | |
| 14 |
C | and fractional height factors (0<hFac<1). The latter | |
| 15 |
C | distinguish between the lopped-cell and full-step | |
| 16 |
C | topographic representations. | |
| 17 |
C \==========================================================/ |
| 18 |
IMPLICIT NONE |
| 19 |
|
| 20 |
C === Global variables === |
| 21 |
#include "SIZE.h" |
| 22 |
#include "EEPARAMS.h" |
| 23 |
#include "PARAMS.h" |
| 24 |
#include "GRID.h" |
| 25 |
#include "SURFACE.h" |
| 26 |
|
| 27 |
C == Routine arguments == |
| 28 |
C myThid - Number of this instance of INI_MASKS_ETC |
| 29 |
INTEGER myThid |
| 30 |
CEndOfInterface |
| 31 |
|
| 32 |
C == Local variables == |
| 33 |
C bi,bj - Loop counters |
| 34 |
C I,J,K |
| 35 |
INTEGER bi, bj |
| 36 |
INTEGER I, J, K |
| 37 |
#ifdef ALLOW_NONHYDROSTATIC |
| 38 |
INTEGER Km1 |
| 39 |
_RL hFacUpper,hFacLower |
| 40 |
#endif |
| 41 |
_RL hFacCtmp |
| 42 |
_RL hFacMnSz |
| 43 |
_RS tmpfld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 44 |
|
| 45 |
C- Calculate lopping factor hFacC : over-estimate the part inside of the domain |
| 46 |
C taking into account the lower_R Boundary (Bathymetrie / Top of Atmos) |
| 47 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 48 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 49 |
DO K=1, Nr |
| 50 |
hFacMnSz=max( hFacMin, min(hFacMinDr*recip_drF(k),1. _d 0) ) |
| 51 |
DO J=1-Oly,sNy+Oly |
| 52 |
DO I=1-Olx,sNx+Olx |
| 53 |
C o Non-dimensional distance between grid bound. and domain lower_R bound. |
| 54 |
hFacCtmp = (rF(K)-R_low(I,J,bi,bj))*recip_drF(K) |
| 55 |
C o Select between, closed, open or partial (0,1,0-1) |
| 56 |
hFacCtmp=min( max( hFacCtmp, 0. _d 0) , 1. _d 0) |
| 57 |
C o Impose minimum fraction and/or size (dimensional) |
| 58 |
IF (hFacCtmp.LT.hFacMnSz) THEN |
| 59 |
IF (hFacCtmp.LT.hFacMnSz*0.5) THEN |
| 60 |
hFacC(I,J,K,bi,bj)=0. |
| 61 |
ELSE |
| 62 |
hFacC(I,J,K,bi,bj)=hFacMnSz |
| 63 |
ENDIF |
| 64 |
ELSE |
| 65 |
hFacC(I,J,K,bi,bj)=hFacCtmp |
| 66 |
ENDIF |
| 67 |
ENDDO |
| 68 |
ENDDO |
| 69 |
ENDDO |
| 70 |
|
| 71 |
C- Re-calculate lower-R Boundary position, taking into account hFacC |
| 72 |
DO J=1-Oly,sNy+Oly |
| 73 |
DO I=1-Olx,sNx+Olx |
| 74 |
R_low(I,J,bi,bj) = rF(1) |
| 75 |
DO K=Nr,1,-1 |
| 76 |
R_low(I,J,bi,bj) = R_low(I,J,bi,bj) |
| 77 |
& - drF(k)*hFacC(I,J,K,bi,bj) |
| 78 |
ENDDO |
| 79 |
ENDDO |
| 80 |
ENDDO |
| 81 |
C - end bi,bj loops. |
| 82 |
ENDDO |
| 83 |
ENDDO |
| 84 |
|
| 85 |
C- Calculate lopping factor hFacC : Remove part outside of the domain |
| 86 |
C taking into account the Reference (=at rest) Surface Position Ro_surf |
| 87 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 88 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 89 |
DO K=1, Nr |
| 90 |
hFacMnSz=max( hFacMin, min(hFacMinDr*recip_drF(k),1. _d 0) ) |
| 91 |
DO J=1-Oly,sNy+Oly |
| 92 |
DO I=1-Olx,sNx+Olx |
| 93 |
C o Non-dimensional distance between grid boundary and model surface |
| 94 |
hFacCtmp = (rF(k)-Ro_surf(I,J,bi,bj))*recip_drF(K) |
| 95 |
C o Reduce the previous fraction : substract the outside part. |
| 96 |
hFacCtmp = hFacC(I,J,K,bi,bj) - max( hFacCtmp, 0. _d 0) |
| 97 |
C o set to zero if empty Column : |
| 98 |
hFacCtmp = max( hFacCtmp, 0. _d 0) |
| 99 |
C o Impose minimum fraction and/or size (dimensional) |
| 100 |
IF (hFacCtmp.LT.hFacMnSz) THEN |
| 101 |
IF (hFacCtmp.LT.hFacMnSz*0.5) THEN |
| 102 |
hFacC(I,J,K,bi,bj)=0. |
| 103 |
ELSE |
| 104 |
hFacC(I,J,K,bi,bj)=hFacMnSz |
| 105 |
ENDIF |
| 106 |
ELSE |
| 107 |
hFacC(I,J,K,bi,bj)=hFacCtmp |
| 108 |
ENDIF |
| 109 |
ENDDO |
| 110 |
ENDDO |
| 111 |
ENDDO |
| 112 |
|
| 113 |
C- Re-calculate Reference surface position, taking into account hFacC |
| 114 |
C initialize Total column fluid thickness and surface k index |
| 115 |
DO J=1-Oly,sNy+Oly |
| 116 |
DO I=1-Olx,sNx+Olx |
| 117 |
tmpfld(I,J,bi,bj) = 0. |
| 118 |
k_surf(I,J,bi,bj) = Nr |
| 119 |
Ro_surf(I,J,bi,bj) = R_low(I,J,bi,bj) |
| 120 |
DO K=Nr,1,-1 |
| 121 |
Ro_surf(I,J,bi,bj) = Ro_surf(I,J,bi,bj) |
| 122 |
& + drF(k)*hFacC(I,J,K,bi,bj) |
| 123 |
IF (hFacC(I,J,K,bi,bj).NE.0.) THEN |
| 124 |
k_surf(I,J,bi,bj) = k |
| 125 |
tmpfld(i,j,bi,bj) = tmpfld(i,j,bi,bj) + 1. |
| 126 |
ENDIF |
| 127 |
ENDDO |
| 128 |
ENDDO |
| 129 |
ENDDO |
| 130 |
C - end bi,bj loops. |
| 131 |
ENDDO |
| 132 |
ENDDO |
| 133 |
|
| 134 |
C CALL PLOT_FIELD_XYRS( tmpfld, |
| 135 |
C & 'Model Depths K Index' , 1, myThid ) |
| 136 |
CALL PLOT_FIELD_XYRS(R_low, |
| 137 |
& 'Model R_low (ini_masks_etc)', 1, myThid) |
| 138 |
CALL PLOT_FIELD_XYRS(Ro_surf, |
| 139 |
& 'Model Ro_surf (ini_masks_etc)', 1, myThid) |
| 140 |
|
| 141 |
C Calculate quantities derived from XY depth map |
| 142 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 143 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 144 |
DO j=1-Oly,sNy+Oly |
| 145 |
DO i=1-Olx,sNx+Olx |
| 146 |
C Total fluid column thickness (r_unit) : |
| 147 |
c Rcolumn(i,j,bi,bj)= Ro_surf(i,j,bi,bj) - R_low(i,j,bi,bj) |
| 148 |
tmpfld(i,j,bi,bj) = Ro_surf(i,j,bi,bj) - R_low(i,j,bi,bj) |
| 149 |
C Inverse of fluid column thickness (1/r_unit) |
| 150 |
IF ( tmpfld(i,j,bi,bj) .LE. 0. ) THEN |
| 151 |
recip_Rcol(i,j,bi,bj) = 0. |
| 152 |
ELSE |
| 153 |
recip_Rcol(i,j,bi,bj) = 1. / tmpfld(i,j,bi,bj) |
| 154 |
ENDIF |
| 155 |
ENDDO |
| 156 |
ENDDO |
| 157 |
ENDDO |
| 158 |
ENDDO |
| 159 |
C _EXCH_XY_R4( recip_Rcol, myThid ) |
| 160 |
CALL WRITE_FLD_XY_RS( 'Depth',' ',tmpfld,0,myThid) |
| 161 |
CALL WRITE_FLD_XYZ_RS( 'hFacC',' ',hFacC,0,myThid) |
| 162 |
C CALL MDSWRITEFIELD( 'Depth', writeBinaryPrec, .TRUE., |
| 163 |
C & 'RS', 1, tmpfld, 1, -1, myThid ) |
| 164 |
|
| 165 |
C hFacW and hFacS (at U and V points) |
| 166 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 167 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 168 |
DO K=1, Nr |
| 169 |
DO J=1,sNy |
| 170 |
DO I=1,sNx |
| 171 |
hFacW(I,J,K,bi,bj)= |
| 172 |
& MIN(hFacC(I,J,K,bi,bj),hFacC(I-1,J,K,bi,bj)) |
| 173 |
hFacS(I,J,K,bi,bj)= |
| 174 |
& MIN(hFacC(I,J,K,bi,bj),hFacC(I,J-1,K,bi,bj)) |
| 175 |
ENDDO |
| 176 |
ENDDO |
| 177 |
ENDDO |
| 178 |
ENDDO |
| 179 |
ENDDO |
| 180 |
CALL EXCH_UV_XYZ_RS(hFacW,hFacS,.FALSE.,myThid) |
| 181 |
C The following block allows thin walls representation of non-periodic |
| 182 |
C boundaries such as happen on the lat-lon grid at the N/S poles. |
| 183 |
C We should really supply a flag for doing this. |
| 184 |
DO bj=myByLo(myThid), myByHi(myThid) |
| 185 |
DO bi=myBxLo(myThid), myBxHi(myThid) |
| 186 |
DO K=1, Nr |
| 187 |
DO J=1-Oly,sNy+Oly |
| 188 |
DO I=1-Olx,sNx+Olx |
| 189 |
IF (DYG(I,J,bi,bj).EQ.0.) hFacW(I,J,K,bi,bj)=0. |
| 190 |
IF (DXG(I,J,bi,bj).EQ.0.) hFacS(I,J,K,bi,bj)=0. |
| 191 |
ENDDO |
| 192 |
ENDDO |
| 193 |
ENDDO |
| 194 |
ENDDO |
| 195 |
ENDDO |
| 196 |
|
| 197 |
CALL PLOT_FIELD_XYZRS( hFacC, 'hFacC' , Nr, 1, myThid ) |
| 198 |
CALL PLOT_FIELD_XYZRS( hFacW, 'hFacW' , Nr, 1, myThid ) |
| 199 |
CALL PLOT_FIELD_XYZRS( hFacS, 'hFacS' , Nr, 1, myThid ) |
| 200 |
|
| 201 |
C Masks and reciprocals of hFac[CWS] |
| 202 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 203 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 204 |
DO K=1,Nr |
| 205 |
DO J=1-Oly,sNy+Oly |
| 206 |
DO I=1-Olx,sNx+Olx |
| 207 |
IF (HFacC(I,J,K,bi,bj) .NE. 0. ) THEN |
| 208 |
recip_HFacC(I,J,K,bi,bj) = 1. / HFacC(I,J,K,bi,bj) |
| 209 |
maskC(I,J,K,bi,bj) = 1. |
| 210 |
ELSE |
| 211 |
recip_HFacC(I,J,K,bi,bj) = 0. |
| 212 |
maskC(I,J,K,bi,bj) = 0. |
| 213 |
ENDIF |
| 214 |
IF (HFacW(I,J,K,bi,bj) .NE. 0. ) THEN |
| 215 |
recip_HFacW(I,J,K,bi,bj) = 1. / HFacW(I,J,K,bi,bj) |
| 216 |
maskW(I,J,K,bi,bj) = 1. |
| 217 |
ELSE |
| 218 |
recip_HFacW(I,J,K,bi,bj) = 0. |
| 219 |
maskW(I,J,K,bi,bj) = 0. |
| 220 |
ENDIF |
| 221 |
IF (HFacS(I,J,K,bi,bj) .NE. 0. ) THEN |
| 222 |
recip_HFacS(I,J,K,bi,bj) = 1. / HFacS(I,J,K,bi,bj) |
| 223 |
maskS(I,J,K,bi,bj) = 1. |
| 224 |
ELSE |
| 225 |
recip_HFacS(I,J,K,bi,bj) = 0. |
| 226 |
maskS(I,J,K,bi,bj) = 0. |
| 227 |
ENDIF |
| 228 |
ENDDO |
| 229 |
ENDDO |
| 230 |
ENDDO |
| 231 |
ENDDO |
| 232 |
ENDDO |
| 233 |
C _EXCH_XYZ_R4(recip_HFacC , myThid ) |
| 234 |
C _EXCH_XYZ_R4(recip_HFacW , myThid ) |
| 235 |
C _EXCH_XYZ_R4(recip_HFacS , myThid ) |
| 236 |
C _EXCH_XYZ_R4(maskW , myThid ) |
| 237 |
C _EXCH_XYZ_R4(maskS , myThid ) |
| 238 |
|
| 239 |
C Calculate recipricols grid lengths |
| 240 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 241 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 242 |
DO J=1-Oly,sNy+Oly |
| 243 |
DO I=1-Olx,sNx+Olx |
| 244 |
IF ( dxG(I,J,bi,bj) .NE. 0. ) |
| 245 |
& recip_dxG(I,J,bi,bj)=1.d0/dxG(I,J,bi,bj) |
| 246 |
IF ( dyG(I,J,bi,bj) .NE. 0. ) |
| 247 |
& recip_dyG(I,J,bi,bj)=1.d0/dyG(I,J,bi,bj) |
| 248 |
IF ( dxC(I,J,bi,bj) .NE. 0. ) |
| 249 |
& recip_dxC(I,J,bi,bj)=1.d0/dxC(I,J,bi,bj) |
| 250 |
IF ( dyC(I,J,bi,bj) .NE. 0. ) |
| 251 |
& recip_dyC(I,J,bi,bj)=1.d0/dyC(I,J,bi,bj) |
| 252 |
IF ( dxF(I,J,bi,bj) .NE. 0. ) |
| 253 |
& recip_dxF(I,J,bi,bj)=1.d0/dxF(I,J,bi,bj) |
| 254 |
IF ( dyF(I,J,bi,bj) .NE. 0. ) |
| 255 |
& recip_dyF(I,J,bi,bj)=1.d0/dyF(I,J,bi,bj) |
| 256 |
IF ( dxV(I,J,bi,bj) .NE. 0. ) |
| 257 |
& recip_dxV(I,J,bi,bj)=1.d0/dxV(I,J,bi,bj) |
| 258 |
IF ( dyU(I,J,bi,bj) .NE. 0. ) |
| 259 |
& recip_dyU(I,J,bi,bj)=1.d0/dyU(I,J,bi,bj) |
| 260 |
IF ( rA(I,J,bi,bj) .NE. 0. ) |
| 261 |
& recip_rA(I,J,bi,bj)=1.d0/rA(I,J,bi,bj) |
| 262 |
IF ( rAs(I,J,bi,bj) .NE. 0. ) |
| 263 |
& recip_rAs(I,J,bi,bj)=1.d0/rAs(I,J,bi,bj) |
| 264 |
IF ( rAw(I,J,bi,bj) .NE. 0. ) |
| 265 |
& recip_rAw(I,J,bi,bj)=1.d0/rAw(I,J,bi,bj) |
| 266 |
IF ( rAz(I,J,bi,bj) .NE. 0. ) |
| 267 |
& recip_rAz(I,J,bi,bj)=1.d0/rAz(I,J,bi,bj) |
| 268 |
ENDDO |
| 269 |
ENDDO |
| 270 |
ENDDO |
| 271 |
ENDDO |
| 272 |
C Do not need these since above denominators are valid over full range |
| 273 |
C _EXCH_XY_R4(recip_dxG, myThid ) |
| 274 |
C _EXCH_XY_R4(recip_dyG, myThid ) |
| 275 |
C _EXCH_XY_R4(recip_dxC, myThid ) |
| 276 |
C _EXCH_XY_R4(recip_dyC, myThid ) |
| 277 |
C _EXCH_XY_R4(recip_dxF, myThid ) |
| 278 |
C _EXCH_XY_R4(recip_dyF, myThid ) |
| 279 |
C _EXCH_XY_R4(recip_dxV, myThid ) |
| 280 |
C _EXCH_XY_R4(recip_dyU, myThid ) |
| 281 |
C _EXCH_XY_R4(recip_rAw, myThid ) |
| 282 |
C _EXCH_XY_R4(recip_rAs, myThid ) |
| 283 |
|
| 284 |
#ifdef ALLOW_NONHYDROSTATIC |
| 285 |
C-- Calculate the reciprocal hfac distance/volume for W cells |
| 286 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 287 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 288 |
DO K=1,Nr |
| 289 |
Km1=max(K-1,1) |
| 290 |
hFacUpper=drF(Km1)/(drF(Km1)+drF(K)) |
| 291 |
IF (Km1.EQ.K) hFacUpper=0. |
| 292 |
hFacLower=drF(K)/(drF(Km1)+drF(K)) |
| 293 |
DO J=1-Oly,sNy+Oly |
| 294 |
DO I=1-Olx,sNx+Olx |
| 295 |
IF (hFacC(I,J,K,bi,bj).NE.0.) THEN |
| 296 |
IF (hFacC(I,J,K,bi,bj).LE.0.5) THEN |
| 297 |
recip_hFacU(I,J,K,bi,bj)= |
| 298 |
& hFacUpper+hFacLower*hFacC(I,J,K,bi,bj) |
| 299 |
ELSE |
| 300 |
recip_hFacU(I,J,K,bi,bj)=1. |
| 301 |
ENDIF |
| 302 |
ELSE |
| 303 |
recip_hFacU(I,J,K,bi,bj)=0. |
| 304 |
ENDIF |
| 305 |
IF (recip_hFacU(I,J,K,bi,bj).NE.0.) |
| 306 |
& recip_hFacU(I,J,K,bi,bj)=1./recip_hFacU(I,J,K,bi,bj) |
| 307 |
ENDDO |
| 308 |
ENDDO |
| 309 |
ENDDO |
| 310 |
ENDDO |
| 311 |
ENDDO |
| 312 |
C _EXCH_XY_R4(recip_hFacU, myThid ) |
| 313 |
#endif |
| 314 |
C |
| 315 |
RETURN |
| 316 |
END |
Parent Directory
| 
Revision Log
| 
Revision Graph