6 |
CBOP |
CBOP |
7 |
C !ROUTINE: TIMESTEP |
C !ROUTINE: TIMESTEP |
8 |
C !INTERFACE: |
C !INTERFACE: |
9 |
SUBROUTINE TIMESTEP( bi, bj, iMin, iMax, jMin, jMax, K, |
SUBROUTINE TIMESTEP( bi, bj, iMin, iMax, jMin, jMax, k, |
10 |
I dPhiHydX,dPhiHydY, phiSurfX, phiSurfY, |
I dPhiHydX,dPhiHydY, phiSurfX, phiSurfY, |
11 |
I myIter, myThid ) |
I myTime, myIter, myThid ) |
12 |
C !DESCRIPTION: \bv |
C !DESCRIPTION: \bv |
13 |
C *==========================================================* |
C *==========================================================* |
14 |
C | S/R TIMESTEP |
C | S/R TIMESTEP |
32 |
C phiSurfX :: gradient of Surface potential (Pressure/rho, ocean) |
C phiSurfX :: gradient of Surface potential (Pressure/rho, ocean) |
33 |
C phiSurfY :: or geopotential (atmos) in X and Y direction |
C phiSurfY :: or geopotential (atmos) in X and Y direction |
34 |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
35 |
INTEGER K |
INTEGER k |
36 |
_RL dPhiHydX(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
_RL dPhiHydX(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
37 |
_RL dPhiHydY(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
_RL dPhiHydY(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
38 |
_RL phiSurfX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL phiSurfX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
39 |
_RL phiSurfY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL phiSurfY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
40 |
|
_RL myTime |
41 |
INTEGER myIter, myThid |
INTEGER myIter, myThid |
42 |
|
|
43 |
C !LOCAL VARIABLES: |
C !LOCAL VARIABLES: |
44 |
C == Local variables == |
C == Local variables == |
45 |
|
LOGICAL momForcing_In_AB |
46 |
INTEGER i,j |
INTEGER i,j |
47 |
_RL ab15,ab05 |
_RL ab15,ab05 |
48 |
_RL phxFac,phyFac, psFac |
_RL phxFac,phyFac, psFac |
49 |
_RL gUtmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL gUtmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
50 |
_RL gVtmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL gVtmp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
51 |
|
#ifdef INCLUDE_CD_CODE |
52 |
|
_RL guCor(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
53 |
|
_RL gvCor(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
54 |
|
#endif |
55 |
CEOP |
CEOP |
56 |
|
|
57 |
C Adams-Bashforth timestepping weights |
C Adams-Bashforth timestepping weights |
75 |
C-- explicit part of the surface potential gradient is added in this S/R |
C-- explicit part of the surface potential gradient is added in this S/R |
76 |
psFac = pfFacMom*(1. _d 0 - implicSurfPress) |
psFac = pfFacMom*(1. _d 0 - implicSurfPress) |
77 |
|
|
78 |
|
C-- including or excluding momentum forcing from Adams-Bashforth: |
79 |
|
momForcing_In_AB = forcing_In_AB |
80 |
|
momForcing_In_AB = .TRUE. |
81 |
|
|
82 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
83 |
C- Compute effective gU term (including Adams-Bashforth weights) : |
|
84 |
|
C- Initialize local arrays (not really necessary but safer) |
85 |
|
DO j=1-Oly,sNy+Oly |
86 |
|
DO i=1-Olx,sNx+Olx |
87 |
|
gUtmp(i,j) = 0. _d 0 |
88 |
|
gVtmp(i,j) = 0. _d 0 |
89 |
|
#ifdef INCLUDE_CD_CODE |
90 |
|
guCor(i,j) = 0. _d 0 |
91 |
|
gvCor(i,j) = 0. _d 0 |
92 |
|
#endif |
93 |
|
ENDDO |
94 |
|
ENDDO |
95 |
|
|
96 |
|
C-- Forcing term inside the Adams-Bashforth: |
97 |
|
IF (momForcing .AND. momForcing_In_AB) THEN |
98 |
|
CALL EXTERNAL_FORCING_U( |
99 |
|
I iMin,iMax,jMin,jMax,bi,bj,k, |
100 |
|
I myTime,myThid) |
101 |
|
CALL EXTERNAL_FORCING_V( |
102 |
|
I iMin,iMax,jMin,jMax,bi,bj,k, |
103 |
|
I myTime,myThid) |
104 |
|
ENDIF |
105 |
|
|
106 |
|
C- Compute effective gU,gV_[n+1/2] terms (including Adams-Bashforth weights) |
107 |
|
C and save gU,gV_[n] into guNm1,gvNm1 for the next time step. |
108 |
DO j=jMin,jMax |
DO j=jMin,jMax |
109 |
DO i=iMin,iMax |
DO i=iMin,iMax |
110 |
gUtmp(i,j) = ab15*gU(i,j,k,bi,bj) |
gUtmp(i,j) = ab15*gU(i,j,k,bi,bj) |
111 |
& + ab05*gUNm1(i,j,k,bi,bj) |
& + ab05*guNm1(i,j,k,bi,bj) |
112 |
#ifdef INCLUDE_CD_CODE |
gVtmp(i,j) = ab15*gV(i,j,k,bi,bj) |
113 |
& + guCD(i,j,k,bi,bj) |
& + ab05*gvNm1(i,j,k,bi,bj) |
114 |
#endif |
guNm1(i,j,k,bi,bj)= gU(i,j,k,bi,bj) |
115 |
|
gvNm1(i,j,k,bi,bj)= gV(i,j,k,bi,bj) |
116 |
|
gU(i,j,k,bi,bj) = gUtmp(i,j) |
117 |
|
gV(i,j,k,bi,bj) = gVtmp(i,j) |
118 |
ENDDO |
ENDDO |
119 |
ENDDO |
ENDDO |
120 |
|
|
121 |
#ifdef NONLIN_FRSURF |
C-- Forcing term outside the Adams-Bashforth: |
122 |
IF (.NOT. vectorInvariantMomentum |
C (not recommanded with CD-scheme ON) |
123 |
& .AND. nonlinFreeSurf.GT.1) THEN |
IF (momForcing .AND. .NOT.momForcing_In_AB) THEN |
124 |
IF (select_rStar.GT.0) THEN |
CALL EXTERNAL_FORCING_U( |
125 |
|
I iMin,iMax,jMin,jMax,bi,bj,k, |
126 |
|
I myTime,myThid) |
127 |
|
CALL EXTERNAL_FORCING_V( |
128 |
|
I iMin,iMax,jMin,jMax,bi,bj,k, |
129 |
|
I myTime,myThid) |
130 |
|
IF (useCDscheme) THEN |
131 |
|
C- for CD-scheme, compute gU,Vtmp = gU,V^n + forcing |
132 |
DO j=jMin,jMax |
DO j=jMin,jMax |
133 |
DO i=iMin,iMax |
DO i=iMin,iMax |
134 |
gUtmp(i,j) = gUtmp(i,j)/rStarExpW(i,j,bi,bj) |
gUtmp(i,j) = gU(i,j,k,bi,bj)-gUtmp(i,j) |
135 |
|
& + guNm1(i,j,k,bi,bj) |
136 |
|
gVtmp(i,j) = gV(i,j,k,bi,bj)-gVtmp(i,j) |
137 |
|
& + gvNm1(i,j,k,bi,bj) |
138 |
ENDDO |
ENDDO |
139 |
ENDDO |
ENDDO |
140 |
ELSE |
ELSE |
141 |
DO j=jMin,jMax |
DO j=jMin,jMax |
142 |
DO i=iMin,iMax |
DO i=iMin,iMax |
143 |
IF ( k.EQ.ksurfW(i,j,bi,bj) ) THEN |
gUtmp(i,j) = gU(i,j,k,bi,bj) |
144 |
gUtmp(i,j) = gUtmp(i,j) |
gVtmp(i,j) = gV(i,j,k,bi,bj) |
|
& *hFacW(i,j,k,bi,bj)/hFac_surfW(i,j,bi,bj) |
|
|
ENDIF |
|
145 |
ENDDO |
ENDDO |
146 |
ENDDO |
ENDDO |
147 |
ENDIF |
ENDIF |
148 |
|
ELSEIF ( useCDscheme) THEN |
149 |
|
DO j=jMin,jMax |
150 |
|
DO i=iMin,iMax |
151 |
|
gUtmp(i,j) = guNm1(i,j,k,bi,bj) |
152 |
|
gVtmp(i,j) = gvNm1(i,j,k,bi,bj) |
153 |
|
ENDDO |
154 |
|
ENDDO |
155 |
ENDIF |
ENDIF |
|
#endif |
|
156 |
|
|
157 |
C Step forward zonal velocity (store in Gu) |
#ifdef INCLUDE_CD_CODE |
158 |
DO j=jMin,jMax |
IF (useCDscheme) THEN |
159 |
DO i=iMin,iMax |
C- Step forward D-grid velocity using C-grid gU,Vtmp = gU,V^n + forcing |
160 |
gUNm1(i,j,k,bi,bj) = uVel(i,j,k,bi,bj) |
C and return coriolis terms on C-grid (guCor,gvCor) |
161 |
& +deltaTmom*( |
CALL MOM_CDSCHEME( |
162 |
& gUtmp(i,j) |
I bi,bj,k, dPhiHydX,dPhiHydY, gUtmp,gVtmp, |
163 |
& - psFac*phiSurfX(i,j) |
O guCor,gvCor, |
164 |
& - phxFac*dPhiHydX(i,j) |
I myTime, myIter, myThid) |
165 |
& )*_maskW(i,j,k,bi,bj) |
DO j=jMin,jMax |
166 |
|
DO i=iMin,iMax |
167 |
|
gUtmp(i,j) = gU(i,j,k,bi,bj) |
168 |
|
& + guCor(i,j) |
169 |
|
gVtmp(i,j) = gV(i,j,k,bi,bj) |
170 |
|
& + gvCor(i,j) |
171 |
|
ENDDO |
172 |
ENDDO |
ENDDO |
173 |
ENDDO |
ENDIF |
174 |
|
#endif /* INCLUDE_CD_CODE */ |
175 |
|
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
|
|
C- Compute effective gV term (including Adams-Bashforth weights) : |
|
|
DO j=jMin,jMax |
|
|
DO i=iMin,iMax |
|
|
gVtmp(i,j) = ab15*gV(i,j,k,bi,bj) |
|
|
& + ab05*gVNm1(i,j,k,bi,bj) |
|
|
#ifdef INCLUDE_CD_CODE |
|
|
& + gvCD(i,j,k,bi,bj) |
|
|
#endif |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
176 |
#ifdef NONLIN_FRSURF |
#ifdef NONLIN_FRSURF |
177 |
IF (.NOT. vectorInvariantMomentum |
IF (.NOT. vectorInvariantMomentum |
178 |
& .AND. nonlinFreeSurf.GT.1) THEN |
& .AND. nonlinFreeSurf.GT.1) THEN |
179 |
IF (select_rStar.GT.0) THEN |
IF (select_rStar.GT.0) THEN |
180 |
DO j=jMin,jMax |
DO j=jMin,jMax |
181 |
DO i=iMin,iMax |
DO i=iMin,iMax |
182 |
|
gUtmp(i,j) = gUtmp(i,j)/rStarExpW(i,j,bi,bj) |
183 |
gVtmp(i,j) = gVtmp(i,j)/rStarExpS(i,j,bi,bj) |
gVtmp(i,j) = gVtmp(i,j)/rStarExpS(i,j,bi,bj) |
184 |
ENDDO |
ENDDO |
185 |
ENDDO |
ENDDO |
186 |
ELSE |
ELSE |
187 |
DO j=jMin,jMax |
DO j=jMin,jMax |
188 |
DO i=iMin,iMax |
DO i=iMin,iMax |
189 |
|
IF ( k.EQ.ksurfW(i,j,bi,bj) ) THEN |
190 |
|
gUtmp(i,j) = gUtmp(i,j) |
191 |
|
& *hFacW(i,j,k,bi,bj)/hFac_surfW(i,j,bi,bj) |
192 |
|
ENDIF |
193 |
IF ( k.EQ.ksurfS(i,j,bi,bj) ) THEN |
IF ( k.EQ.ksurfS(i,j,bi,bj) ) THEN |
194 |
gVtmp(i,j) = gVtmp(i,j) |
gVtmp(i,j) = gVtmp(i,j) |
195 |
& *hFacS(i,j,k,bi,bj)/hFac_surfS(i,j,bi,bj) |
& *hFacS(i,j,k,bi,bj)/hFac_surfS(i,j,bi,bj) |
198 |
ENDDO |
ENDDO |
199 |
ENDIF |
ENDIF |
200 |
ENDIF |
ENDIF |
201 |
#endif |
#endif /* NONLIN_FRSURF */ |
202 |
|
|
203 |
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
204 |
|
|
205 |
|
C Step forward zonal velocity (store in Gu) |
206 |
|
DO j=jMin,jMax |
207 |
|
DO i=iMin,iMax |
208 |
|
gU(i,j,k,bi,bj) = uVel(i,j,k,bi,bj) |
209 |
|
& +deltaTmom*( |
210 |
|
& gUtmp(i,j) |
211 |
|
& - psFac*phiSurfX(i,j) |
212 |
|
& - phxFac*dPhiHydX(i,j) |
213 |
|
& )*_maskW(i,j,k,bi,bj) |
214 |
|
ENDDO |
215 |
|
ENDDO |
216 |
|
|
217 |
C Step forward meridional velocity (store in Gv) |
C Step forward meridional velocity (store in Gv) |
218 |
DO j=jMin,jMax |
DO j=jMin,jMax |
219 |
DO i=iMin,iMax |
DO i=iMin,iMax |
220 |
gVNm1(i,j,k,bi,bj) = vVel(i,j,k,bi,bj) |
gV(i,j,k,bi,bj) = vVel(i,j,k,bi,bj) |
221 |
& +deltaTmom*( |
& +deltaTmom*( |
222 |
& gVtmp(i,j) |
& gVtmp(i,j) |
223 |
& - psFac*phiSurfY(i,j) |
& - psFac*phiSurfY(i,j) |