1 |
cnh |
1.4 |
C $Header: /u/u0/gcmpack/MITgcm/model/src/external_forcing.F,v 1.19 2003/06/19 15:00:45 heimbach Exp $ |
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cnh |
1.1 |
C $Name: $ |
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#include "CPP_OPTIONS.h" |
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#ifdef ALLOW_OBCS |
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# include "OBCS_OPTIONS.h" |
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#endif |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_U |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_U |
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C | o Contains problem specific forcing for zonal velocity. |
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C *==========================================================* |
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C | Adds terms to gU for forcing by external sources |
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C | e.g. wind stress, bottom friction etc.................. |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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C number of surface interface layer |
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INTEGER kSurface |
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C Cheap sponge layer |
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_RS recip_tauSp(5) |
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INTEGER spWidth |
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_RS curRecipTau |
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INTEGER jFromNBndy, jFromSBndy, |
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& jNorthBndy, jSouthBndy, jG |
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CEOP |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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C-- Forcing term |
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C Add windstress momentum impulse into the top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gU(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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cnh |
1.2 |
& +foFacMom*surfaceTendencyU(i,j,bi,bj) |
73 |
cnh |
1.1 |
& *_maskW(i,j,kLev,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
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C Damping time scale decreases away from boundary so that |
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C tau = 1 day, 5days, 10days, 20days, 60days |
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spWidth = 5 |
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recip_tauSp(1) = 1./(86400.*1. ) |
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recip_tauSp(2) = 1./(86400.*5. ) |
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recip_tauSp(3) = 1./(86400.*10.) |
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recip_tauSp(4) = 1./(86400.*20.) |
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recip_tauSp(5) = 1./(86400.*60.) |
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jSouthBndy = 5 |
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jNorthBndy = ny-5+1 |
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cnh |
1.4 |
DO j=1,sNy |
90 |
cnh |
1.1 |
DO i=iMin,iMax |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
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jFromNBndy = jNorthBndy-jG |
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jFromSBndy = jSouthBndy-jG |
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curRecipTau=0. |
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IF ( jFromNBndy .LE. 0 ) THEN |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
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ENDIF |
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IF ( jFromSBndy .GE. 0 ) THEN |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
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ENDIF |
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gu(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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& -curRecipTau*uVel(i,j,Klev,bi,bj) |
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ENDDO |
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ENDDO |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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ENDIF |
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#endif |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_V |
118 |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_V( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
122 |
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C !DESCRIPTION: \bv |
123 |
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C *==========================================================* |
124 |
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C | S/R EXTERNAL_FORCING_V |
125 |
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C | o Contains problem specific forcing for merid velocity. |
126 |
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C *==========================================================* |
127 |
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C | Adds terms to gV for forcing by external sources |
128 |
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C | e.g. wind stress, bottom friction etc.................. |
129 |
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C *==========================================================* |
130 |
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C \ev |
131 |
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132 |
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C !USES: |
133 |
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IMPLICIT NONE |
134 |
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C == Global data == |
135 |
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#include "SIZE.h" |
136 |
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#include "EEPARAMS.h" |
137 |
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#include "PARAMS.h" |
138 |
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#include "GRID.h" |
139 |
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#include "DYNVARS.h" |
140 |
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#include "FFIELDS.h" |
141 |
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|
142 |
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C !INPUT/OUTPUT PARAMETERS: |
143 |
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C == Routine arguments == |
144 |
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C iMin - Working range of tile for applying forcing. |
145 |
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C iMax |
146 |
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C jMin |
147 |
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C jMax |
148 |
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C kLev |
149 |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
150 |
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_RL myCurrentTime |
151 |
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INTEGER myThid |
152 |
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153 |
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C !LOCAL VARIABLES: |
154 |
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C == Local variables == |
155 |
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C Loop counters |
156 |
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INTEGER I, J |
157 |
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C number of surface interface layer |
158 |
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INTEGER kSurface |
159 |
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160 |
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C == Cheap sponge layer == |
161 |
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_RS recip_tauSp(5) |
162 |
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INTEGER spWidth |
163 |
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_RS curRecipTau |
164 |
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INTEGER jFromNBndy, jFromSBndy, |
165 |
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& jNorthBndy, jSouthBndy, jG |
166 |
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167 |
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168 |
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CEOP |
169 |
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170 |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
171 |
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kSurface = Nr |
172 |
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else |
173 |
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kSurface = 1 |
174 |
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endif |
175 |
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176 |
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C-- Forcing term |
177 |
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C Add windstress momentum impulse into the top-layer |
178 |
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IF ( kLev .EQ. kSurface ) THEN |
179 |
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DO j=jMin,jMax |
180 |
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DO i=iMin,iMax |
181 |
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gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) |
182 |
cnh |
1.2 |
& +foFacMom*surfaceTendencyV(i,j,bi,bj) |
183 |
cnh |
1.1 |
& *_maskS(i,j,kLev,bi,bj) |
184 |
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ENDDO |
185 |
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ENDDO |
186 |
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ENDIF |
187 |
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188 |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
189 |
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IF (useOBCS) THEN |
190 |
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CALL OBCS_SPONGE_V( |
191 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
192 |
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I myCurrentTime,myThid) |
193 |
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ENDIF |
194 |
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#endif |
195 |
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|
196 |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
197 |
|
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C Damping time scale decreases away from boundary so that |
198 |
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C tau = 1 day, 5days, 10days, 20days, 60days |
199 |
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spWidth = 5 |
200 |
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recip_tauSp(1) = 1./(86400.*1. ) |
201 |
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recip_tauSp(2) = 1./(86400.*5. ) |
202 |
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recip_tauSp(3) = 1./(86400.*10.) |
203 |
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recip_tauSp(4) = 1./(86400.*20.) |
204 |
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recip_tauSp(5) = 1./(86400.*60.) |
205 |
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jSouthBndy = 5 |
206 |
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jNorthBndy = ny-5+1 |
207 |
cnh |
1.4 |
DO j=1,sNy |
208 |
cnh |
1.1 |
DO i=iMin,iMax |
209 |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
210 |
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jFromNBndy = jNorthBndy-jG |
211 |
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jFromSBndy = jSouthBndy-jG |
212 |
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curRecipTau=0. |
213 |
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IF ( jFromNBndy .LE. 0 ) THEN |
214 |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
215 |
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ENDIF |
216 |
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IF ( jFromSBndy .GE. 0 ) THEN |
217 |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
218 |
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ENDIF |
219 |
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gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) |
220 |
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& -curRecipTau*vVel(i,j,Klev,bi,bj) |
221 |
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ENDDO |
222 |
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ENDDO |
223 |
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224 |
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RETURN |
225 |
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END |
226 |
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CBOP |
227 |
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C !ROUTINE: EXTERNAL_FORCING_T |
228 |
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C !INTERFACE: |
229 |
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SUBROUTINE EXTERNAL_FORCING_T( |
230 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
231 |
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I myCurrentTime,myThid) |
232 |
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C !DESCRIPTION: \bv |
233 |
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C *==========================================================* |
234 |
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C | S/R EXTERNAL_FORCING_T |
235 |
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C | o Contains problem specific forcing for temperature. |
236 |
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C *==========================================================* |
237 |
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C | Adds terms to gT for forcing by external sources |
238 |
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C | e.g. heat flux, climatalogical relaxation.............. |
239 |
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C *==========================================================* |
240 |
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C \ev |
241 |
|
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|
242 |
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C !USES: |
243 |
|
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IMPLICIT NONE |
244 |
|
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C == Global data == |
245 |
|
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#include "SIZE.h" |
246 |
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#include "EEPARAMS.h" |
247 |
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#include "PARAMS.h" |
248 |
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#include "GRID.h" |
249 |
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#include "DYNVARS.h" |
250 |
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#include "FFIELDS.h" |
251 |
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#ifdef SHORTWAVE_HEATING |
252 |
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integer two |
253 |
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_RL minusone |
254 |
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parameter (two=2,minusone=-1.) |
255 |
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_RL swfracb(two) |
256 |
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#endif |
257 |
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258 |
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C !INPUT/OUTPUT PARAMETERS: |
259 |
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C == Routine arguments == |
260 |
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C iMin - Working range of tile for applying forcing. |
261 |
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C iMax |
262 |
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C jMin |
263 |
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C jMax |
264 |
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C kLev |
265 |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
266 |
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_RL myCurrentTime |
267 |
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INTEGER myThid |
268 |
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CEndOfInterface |
269 |
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|
270 |
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C !LOCAL VARIABLES: |
271 |
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C == Local variables == |
272 |
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C Loop counters |
273 |
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INTEGER I, J |
274 |
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C number of surface interface layer |
275 |
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INTEGER kSurface |
276 |
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C Cheap sponge layer |
277 |
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_RS recip_tauSp(5) |
278 |
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INTEGER spWidth |
279 |
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_RS curRecipTau |
280 |
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INTEGER jFromNBndy, jFromSBndy, |
281 |
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& jNorthBndy, jSouthBndy, jG |
282 |
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|
283 |
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CEOP |
284 |
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285 |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
286 |
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kSurface = Nr |
287 |
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else |
288 |
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kSurface = 1 |
289 |
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endif |
290 |
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291 |
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C-- Forcing term |
292 |
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C Add heat in top-layer |
293 |
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IF ( kLev .EQ. kSurface ) THEN |
294 |
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DO j=jMin,jMax |
295 |
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DO i=iMin,iMax |
296 |
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gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
297 |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyT(i,j,bi,bj) |
298 |
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ENDDO |
299 |
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ENDDO |
300 |
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ENDIF |
301 |
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|
302 |
cnh |
1.2 |
C-- Forcing term |
303 |
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C Add heat in top-layer ( 90 day climatalogical average relaxation ) |
304 |
|
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IF ( kLev .EQ. kSurface ) THEN |
305 |
cnh |
1.3 |
curRecipTau=1./(86400.*90.) |
306 |
cnh |
1.2 |
DO j=jMin,jMax |
307 |
|
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DO i=iMin,iMax |
308 |
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gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
309 |
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& +maskC(i,j,kLev,bi,bj)*( |
310 |
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& -curRecipTau*(theta(i,j,Klev,bi,bj)-thetaRef(i,j,kLev,bi,bj)) |
311 |
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& ) |
312 |
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ENDDO |
313 |
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ENDDO |
314 |
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ENDIF |
315 |
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|
316 |
cnh |
1.1 |
#ifdef SHORTWAVE_HEATING |
317 |
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C Penetrating SW radiation |
318 |
|
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swfracb(1)=abs(rF(klev)) |
319 |
|
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swfracb(2)=abs(rF(klev+1)) |
320 |
|
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call SWFRAC( |
321 |
|
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I two,minusone, |
322 |
|
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I myCurrentTime,myThid, |
323 |
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U swfracb) |
324 |
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DO j=jMin,jMax |
325 |
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DO i=iMin,iMax |
326 |
|
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gT(i,j,klev,bi,bj) = gT(i,j,klev,bi,bj) |
327 |
|
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& -maskC(i,j,klev,bi,bj)*Qsw(i,j,bi,bj)*(swfracb(1)-swfracb(2)) |
328 |
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& *recip_Cp*recip_rhoConst*recip_drF(klev) |
329 |
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ENDDO |
330 |
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ENDDO |
331 |
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#endif |
332 |
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|
333 |
|
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
334 |
|
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IF (useOBCS) THEN |
335 |
|
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CALL OBCS_SPONGE_T( |
336 |
|
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
337 |
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I myCurrentTime,myThid) |
338 |
|
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ENDIF |
339 |
|
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#endif |
340 |
|
|
|
341 |
|
|
C-- Create a sponge layer where flow is linearly damped over entire water column |
342 |
|
|
C Damping time scale decreases away from boundary so that |
343 |
|
|
C tau = 1 day, 5days, 10days, 20days, 60days |
344 |
|
|
spWidth = 5 |
345 |
|
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recip_tauSp(1) = 1./(86400.*1. ) |
346 |
|
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recip_tauSp(2) = 1./(86400.*5. ) |
347 |
|
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recip_tauSp(3) = 1./(86400.*10.) |
348 |
|
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recip_tauSp(4) = 1./(86400.*20.) |
349 |
|
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recip_tauSp(5) = 1./(86400.*60.) |
350 |
|
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jSouthBndy = 5 |
351 |
|
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jNorthBndy = ny-5+1 |
352 |
cnh |
1.4 |
DO j=1,sNy |
353 |
cnh |
1.1 |
DO i=iMin,iMax |
354 |
|
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
355 |
|
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jFromNBndy = jNorthBndy-jG |
356 |
|
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jFromSBndy = jSouthBndy-jG |
357 |
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curRecipTau=0. |
358 |
|
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IF ( jFromNBndy .LE. 0 ) THEN |
359 |
|
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curRecipTau = recip_tauSp(jFromNBndy+5) |
360 |
|
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ENDIF |
361 |
|
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IF ( jFromSBndy .GE. 0 ) THEN |
362 |
|
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
363 |
|
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ENDIF |
364 |
|
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gT(i,j,kLev,bi,bj) = gT(i,j,kLev,bi,bj) |
365 |
|
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& -curRecipTau*(theta(i,j,Klev,bi,bj)-thetaRef(i,j,kLev,bi,bj)) |
366 |
|
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C & *0.0000D0 |
367 |
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ENDDO |
368 |
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ENDDO |
369 |
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|
370 |
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|
371 |
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RETURN |
372 |
|
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END |
373 |
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CBOP |
374 |
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C !ROUTINE: EXTERNAL_FORCING_S |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_S( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_S |
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C | o Contains problem specific forcing for merid velocity. |
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C *==========================================================* |
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C | Adds terms to gS for forcing by external sources |
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C | e.g. fresh-water flux, climatalogical relaxation....... |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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C number of surface interface layer |
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INTEGER kSurface |
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C Cheap sponge layer |
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_RS recip_tauSp(5) |
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INTEGER spWidth |
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_RS curRecipTau |
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INTEGER jFromNBndy, jFromSBndy, |
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& jNorthBndy, jSouthBndy, jG |
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CEOP |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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C-- Forcing term |
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C Add fresh-water in top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyS(i,j,bi,bj) |
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cnh |
1.2 |
ENDDO |
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ENDDO |
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ENDIF |
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C-- Forcing term |
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C Add freshening/salt in top-layer ( 90 day climatalogical average relaxation ) |
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IF ( kLev .EQ. kSurface ) THEN |
447 |
cnh |
1.4 |
curRecipTau=1./(86400.*90.) |
448 |
cnh |
1.2 |
DO j=jMin,jMax |
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DO i=iMin,iMax |
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gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) |
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& +maskC(i,j,kLev,bi,bj)*( |
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& -curRecipTau*(salt(i,j,Klev,bi,bj)-saltRef(i,j,kLev,bi,bj)) |
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& ) |
454 |
cnh |
1.1 |
ENDDO |
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ENDDO |
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ENDIF |
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458 |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_S( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
463 |
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ENDIF |
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#endif |
465 |
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466 |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
467 |
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C Damping time scale decreases away from boundary so that |
468 |
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C tau = 1 day, 5days, 10days, 20days, 60days |
469 |
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spWidth = 5 |
470 |
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recip_tauSp(1) = 1./(86400.*1. ) |
471 |
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recip_tauSp(2) = 1./(86400.*5. ) |
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recip_tauSp(3) = 1./(86400.*10.) |
473 |
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recip_tauSp(4) = 1./(86400.*20.) |
474 |
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recip_tauSp(5) = 1./(86400.*60.) |
475 |
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jSouthBndy = 5 |
476 |
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jNorthBndy = ny-5+1 |
477 |
cnh |
1.4 |
DO j=1,sNy |
478 |
cnh |
1.1 |
DO i=iMin,iMax |
479 |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
480 |
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jFromNBndy = jNorthBndy-jG |
481 |
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jFromSBndy = jSouthBndy-jG |
482 |
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curRecipTau=0. |
483 |
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IF ( jFromNBndy .LE. 0 ) THEN |
484 |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
485 |
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ENDIF |
486 |
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IF ( jFromSBndy .GE. 0 ) THEN |
487 |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
488 |
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ENDIF |
489 |
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gS(i,j,kLev,bi,bj) = gS(i,j,kLev,bi,bj) |
490 |
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& -curRecipTau*(salt(i,j,Klev,bi,bj)-saltRef(i,j,kLev,bi,bj)) |
491 |
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C & *0.0000D0 |
492 |
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ENDDO |
493 |
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ENDDO |
494 |
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495 |
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RETURN |
496 |
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END |