6 |
SUBROUTINE CALC_GS( |
SUBROUTINE CALC_GS( |
7 |
I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
8 |
I xA,yA,uTrans,vTrans,wTrans,maskup, |
I xA,yA,uTrans,vTrans,wTrans,maskup, |
9 |
U af,df,fZon,fMer, fVerS, |
I K13,K23,KappaZS,KapGM, |
10 |
|
U af,df,fZon,fMer,fVerS, |
11 |
I myThid ) |
I myThid ) |
12 |
C /==========================================================\ |
C /==========================================================\ |
13 |
C | SUBROUTINE CALC_GS | |
C | SUBROUTINE CALC_GS | |
14 |
C | o Calculate the salinity tendency terms. | |
C | o Calculate the salt tendency terms. | |
15 |
C |==========================================================| |
C |==========================================================| |
16 |
C | A procedure called EXTERNAL_FORCING_S is called from | |
C | A procedure called EXTERNAL_FORCING_S is called from | |
17 |
C | here. These procedures can be used to add per problem | |
C | here. These procedures can be used to add per problem | |
18 |
C | fresh water flux source terms. | |
C | E-P flux source terms. | |
19 |
C | Note: Although it is slightly counter-intuitive the | |
C | Note: Although it is slightly counter-intuitive the | |
20 |
C | EXTERNAL_FORCING routine is not the place to put | |
C | EXTERNAL_FORCING routine is not the place to put | |
21 |
C | file I/O. Instead files that are required to | |
C | file I/O. Instead files that are required to | |
48 |
C direction at the west face of a cell. |
C direction at the west face of a cell. |
49 |
C fMer - Work array for flux of temperature in the north-south |
C fMer - Work array for flux of temperature in the north-south |
50 |
C direction at the south face of a cell. |
C direction at the south face of a cell. |
51 |
C fVerS - Flux of salinity (S) in the vertical |
C fVerS - Flux of salt (S) in the vertical |
52 |
C direction at the upper(U) and lower(D) faces of a cell. |
C direction at the upper(U) and lower(D) faces of a cell. |
53 |
C maskUp - Land mask used to denote base of the domain. |
C maskUp - Land mask used to denote base of the domain. |
54 |
C xA - Tracer cell face area normal to X |
C xA - Tracer cell face area normal to X |
60 |
C df - Diffusive flux component work array |
C df - Diffusive flux component work array |
61 |
C bi, bj, iMin, iMax, jMin, jMax - Range of points for which calculation |
C bi, bj, iMin, iMax, jMin, jMax - Range of points for which calculation |
62 |
C results will be set. |
C results will be set. |
63 |
C myThid - Instance number for this innvocation of CALC_GS |
C myThid - Instance number for this innvocation of CALC_GT |
64 |
_RL fZon (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL fZon (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
65 |
_RL fMer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL fMer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
66 |
_RL fVerS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
_RL fVerS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
70 |
_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
71 |
_RL wTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL wTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
72 |
_RS maskUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RS maskUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
73 |
|
_RL K13 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
74 |
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_RL K23 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
75 |
|
_RL KappaZS(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nz) |
76 |
|
_RL KapGM (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
77 |
_RL af (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL af (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
78 |
_RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
79 |
INTEGER kUp,kDown,kM1 |
INTEGER k,kUp,kDown,kM1 |
80 |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
81 |
INTEGER myThid |
INTEGER myThid |
82 |
CEndOfInterface |
CEndOfInterface |
83 |
|
|
84 |
C == Local variables == |
C == Local variables == |
85 |
C I, J, K - Loop counters |
C I, J, K - Loop counters |
86 |
INTEGER i,j,k |
INTEGER i,j |
87 |
INTEGER afFacS, dfFacS |
LOGICAL TOP_LAYER |
88 |
|
_RL afFacS, dfFacS |
89 |
|
_RL dSdx(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
90 |
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_RL dSdy(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
91 |
|
|
92 |
afFacS = 1. _d 0 |
afFacS = 1. _d 0 |
93 |
dfFacS = 1. _d 0 |
dfFacS = 1. _d 0 |
94 |
|
TOP_LAYER = K .EQ. 1 |
95 |
|
|
|
C--- |
|
96 |
C--- Calculate advective and diffusive fluxes between cells. |
C--- Calculate advective and diffusive fluxes between cells. |
|
C--- |
|
97 |
|
|
98 |
C-- Zonal flux (fZon is at west face of "salt" cell) |
C-- Zonal flux (fZon is at west face of "salt" cell) |
99 |
C Advective component of zonal flux |
C Advective component of zonal flux |
103 |
& uTrans(i,j)*(salt(i,j,k,bi,bj)+salt(i-1,j,k,bi,bj))*0.5 _d 0 |
& uTrans(i,j)*(salt(i,j,k,bi,bj)+salt(i-1,j,k,bi,bj))*0.5 _d 0 |
104 |
ENDDO |
ENDDO |
105 |
ENDDO |
ENDDO |
106 |
|
C Zonal tracer gradient |
107 |
|
DO j=jMin,jMax |
108 |
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DO i=iMin,iMax |
109 |
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dSdx(i,j) = _rdxC(i,j,bi,bj)* |
110 |
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& (salt(i,j,k,bi,bj)-salt(i-1,j,k,bi,bj)) |
111 |
|
ENDDO |
112 |
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ENDDO |
113 |
C Diffusive component of zonal flux |
C Diffusive component of zonal flux |
114 |
DO j=jMin,jMax |
DO j=jMin,jMax |
115 |
DO i=iMin,iMax |
DO i=iMin,iMax |
116 |
df(i,j) = |
df(i,j) = -(diffKhS+0.5*(KapGM(i,j)+KapGM(i-1,j)))* |
117 |
& -diffKhS*xA(i,j)*_rdxC(i,j,bi,bj) |
& xA(i,j)*dSdx(i,j) |
|
& *(salt(i,j,k,bi,bj)-salt(i-1,j,k,bi,bj)) |
|
118 |
ENDDO |
ENDDO |
119 |
ENDDO |
ENDDO |
120 |
C Net zonal flux |
C Net zonal flux |
133 |
& vTrans(i,j)*(salt(i,j,k,bi,bj)+salt(i,j-1,k,bi,bj))*0.5 _d 0 |
& vTrans(i,j)*(salt(i,j,k,bi,bj)+salt(i,j-1,k,bi,bj))*0.5 _d 0 |
134 |
ENDDO |
ENDDO |
135 |
ENDDO |
ENDDO |
136 |
|
C Zonal tracer gradient |
137 |
|
DO j=jMin,jMax |
138 |
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DO i=iMin,iMax |
139 |
|
dSdy(i,j) = _rdyC(i,j,bi,bj)* |
140 |
|
& (salt(i,j,k,bi,bj)-salt(i,j-1,k,bi,bj)) |
141 |
|
ENDDO |
142 |
|
ENDDO |
143 |
C Diffusive component of meridional flux |
C Diffusive component of meridional flux |
144 |
DO j=jMin,jMax |
DO j=jMin,jMax |
145 |
DO i=iMin,iMax |
DO i=iMin,iMax |
146 |
df(i,j) = |
df(i,j) = -(diffKhS+0.5*(KapGM(i,j)+KapGM(i,j-1)))* |
147 |
& -diffKhS*yA(i,j)*_rdyC(i,j,bi,bj) |
& yA(i,j)*dSdy(i,j) |
|
& *(salt(i,j,k,bi,bj)-salt(i,j-1,k,bi,bj)) |
|
148 |
ENDDO |
ENDDO |
149 |
ENDDO |
ENDDO |
150 |
C Net meridional flux |
C Net meridional flux |
154 |
ENDDO |
ENDDO |
155 |
ENDDO |
ENDDO |
156 |
|
|
157 |
|
C-- Interpolate terms for Redi/GM scheme |
158 |
|
DO j=jMin,jMax |
159 |
|
DO i=iMin,iMax |
160 |
|
dSdx(i,j) = 0.5*( |
161 |
|
& +0.5*(_maskW(i+1,j,k,bi,bj)*_rdxC(i+1,j,bi,bj)* |
162 |
|
& (salt(i+1,j,k,bi,bj)-salt(i,j,k,bi,bj)) |
163 |
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& +_maskW(i,j,k,bi,bj)*_rdxC(i,j,bi,bj)* |
164 |
|
& (salt(i,j,k,bi,bj)-salt(i-1,j,k,bi,bj))) |
165 |
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& +0.5*(_maskW(i+1,j,km1,bi,bj)*_rdxC(i+1,j,bi,bj)* |
166 |
|
& (salt(i+1,j,km1,bi,bj)-salt(i,j,km1,bi,bj)) |
167 |
|
& +_maskW(i,j,km1,bi,bj)*_rdxC(i,j,bi,bj)* |
168 |
|
& (salt(i,j,km1,bi,bj)-salt(i-1,j,km1,bi,bj))) |
169 |
|
& ) |
170 |
|
ENDDO |
171 |
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ENDDO |
172 |
|
DO j=jMin,jMax |
173 |
|
DO i=iMin,iMax |
174 |
|
dSdy(i,j) = 0.5*( |
175 |
|
& +0.5*(_maskS(i,j,k,bi,bj)*_rdyC(i,j,bi,bj)* |
176 |
|
& (salt(i,j,k,bi,bj)-salt(i,j-1,k,bi,bj)) |
177 |
|
& +_maskS(i,j+1,k,bi,bj)*_rdyC(i,j+1,bi,bj)* |
178 |
|
& (salt(i,j+1,k,bi,bj)-salt(i,j,k,bi,bj))) |
179 |
|
& +0.5*(_maskS(i,j,km1,bi,bj)*_rdyC(i,j,bi,bj)* |
180 |
|
& (salt(i,j,km1,bi,bj)-salt(i,j-1,km1,bi,bj)) |
181 |
|
& +_maskS(i,j+1,km1,bi,bj)*_rdyC(i,j+1,bi,bj)* |
182 |
|
& (salt(i,j+1,km1,bi,bj)-salt(i,j,km1,bi,bj))) |
183 |
|
& ) |
184 |
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ENDDO |
185 |
|
ENDDO |
186 |
|
|
187 |
C-- Vertical flux (fVerS) above |
C-- Vertical flux (fVerS) above |
|
C Note: For K=1 then KM1=1 this gives a dS/dz = 0 upper |
|
|
C boundary condition. |
|
188 |
C Advective component of vertical flux |
C Advective component of vertical flux |
189 |
|
C Note: For K=1 then KM1=1 this gives a barZ(T) = T |
190 |
|
C (this plays the role of the free-surface correction) |
191 |
DO j=jMin,jMax |
DO j=jMin,jMax |
192 |
DO i=iMin,iMax |
DO i=iMin,iMax |
193 |
af(i,j) = |
af(i,j) = |
195 |
ENDDO |
ENDDO |
196 |
ENDDO |
ENDDO |
197 |
C Diffusive component of vertical flux |
C Diffusive component of vertical flux |
198 |
|
C Note: For K=1 then KM1=1 this gives a dS/dz = 0 upper |
199 |
|
C boundary condition. |
200 |
DO j=jMin,jMax |
DO j=jMin,jMax |
201 |
DO i=iMin,iMax |
DO i=iMin,iMax |
202 |
df(i,j) = |
df(i,j) = _zA(i,j,bi,bj)*( |
203 |
& -diffKzS*_zA(i,j,bi,bj)*rdzC(k) |
& -KapGM(i,j)*K13(i,j,k)*dSdx(i,j) |
204 |
& *(salt(i,j,kM1,bi,bj)-salt(i,j,k,bi,bj)) |
& -KapGM(i,j)*K23(i,j,k)*dSdy(i,j) |
205 |
|
& ) |
206 |
ENDDO |
ENDDO |
207 |
ENDDO |
ENDDO |
208 |
|
IF (.NOT.implicitDiffusion) THEN |
209 |
|
DO j=jMin,jMax |
210 |
|
DO i=iMin,iMax |
211 |
|
df(i,j) = df(i,j) + _zA(i,j,bi,bj)*( |
212 |
|
& -KappaZS(i,j,k)*rdzC(k) |
213 |
|
& *(salt(i,j,kM1,bi,bj)-salt(i,j,k,bi,bj)) |
214 |
|
& ) |
215 |
|
ENDDO |
216 |
|
ENDDO |
217 |
|
ENDIF |
218 |
C Net vertical flux |
C Net vertical flux |
219 |
DO j=jMin,jMax |
DO j=jMin,jMax |
220 |
DO i=iMin,iMax |
DO i=iMin,iMax |
221 |
fVerS(i,j,kUp) = (afFacS*af(i,j) + dfFacS*df(i,j))*maskUp(i,j) |
fVerS(i,j,kUp) = ( afFacS*af(i,j)+ dfFacS*df(i,j) )*maskUp(i,j) |
222 |
ENDDO |
ENDDO |
223 |
ENDDO |
ENDDO |
224 |
|
IF ( TOP_LAYER ) THEN |
225 |
|
DO j=jMin,jMax |
226 |
|
DO i=iMin,iMax |
227 |
|
fVerS(i,j,kUp) = afFacS*af(i,j)*freeSurfFac |
228 |
|
ENDDO |
229 |
|
ENDDO |
230 |
|
ENDIF |
231 |
|
|
232 |
C-- Tendency is minus divergence of the fluxes. |
C-- Tendency is minus divergence of the fluxes. |
233 |
C Note. Tendency terms will only be correct for range |
C Note. Tendency terms will only be correct for range |
237 |
C are not used. |
C are not used. |
238 |
DO j=jMin,jMax |
DO j=jMin,jMax |
239 |
DO i=iMin,iMax |
DO i=iMin,iMax |
240 |
|
C & -_rhFacC(i,j,k,bi,bj)*rdzF(k)*_rdxF(i,j,bi,bj)*_rdyF(i,j,bi,bj) |
241 |
|
C & -_rhFacC(i,j,k,bi,bj)*rdzF(k)/_zA(i,j,bi,bj) |
242 |
|
C #define _rVolS(i,j,k,bi,bj) _rhFacC(i,j,k,bi,bj)*rdzF(k)*_rdxF(i,j,bi,bj)*_rdyF(i,j,bi,bj) |
243 |
|
#define _rVolS(i,j,k,bi,bj) _rhFacC(i,j,k,bi,bj)*rdzF(k)/_zA(i,j,bi,bj) |
244 |
gS(i,j,k,bi,bj)= |
gS(i,j,k,bi,bj)= |
245 |
& -_rhFacC(i,j,k,bi,bj)*rdzF(k)*_rdxF(i,j,bi,bj)*_rdyF(i,j,bi,bj) |
& -_rVolS(i,j,k,bi,bj) |
246 |
& *( |
& *( |
247 |
& +( fZon(i+1,j)-fZon(i,j) ) |
& +( fZon(i+1,j)-fZon(i,j) ) |
248 |
& +( fMer(i,j+1)-fMer(i,j) ) |
& +( fMer(i,j+1)-fMer(i,j) ) |
251 |
ENDDO |
ENDDO |
252 |
ENDDO |
ENDDO |
253 |
|
|
254 |
C-- External haline forcing term(s) |
C-- External P-E forcing term(s) |
255 |
|
|
256 |
RETURN |
RETURN |
257 |
END |
END |