1 |
jmc |
1.9 |
C $Header: /u/gcmpack/MITgcm/model/src/calc_grad_phi_hyd.F,v 1.8 2005/12/08 15:44:33 heimbach Exp $ |
2 |
jmc |
1.1 |
C $Name: $ |
3 |
|
|
|
4 |
|
|
#include "CPP_OPTIONS.h" |
5 |
|
|
|
6 |
|
|
CBOP |
7 |
|
|
C !ROUTINE: CALC_GRAD_PHI_HYD |
8 |
|
|
C !INTERFACE: |
9 |
jmc |
1.9 |
SUBROUTINE CALC_GRAD_PHI_HYD( |
10 |
jmc |
1.1 |
I k, bi, bj, iMin,iMax, jMin,jMax, |
11 |
jmc |
1.3 |
I phiHydC, alphRho, tFld, sFld, |
12 |
jmc |
1.1 |
O dPhiHydX, dPhiHydY, |
13 |
|
|
I myTime, myIter, myThid) |
14 |
|
|
C !DESCRIPTION: \bv |
15 |
|
|
C *==========================================================* |
16 |
jmc |
1.9 |
C | S/R CALC_GRAD_PHI_HYD |
17 |
|
|
C | o Calculate the gradient of Hydrostatic potential anomaly |
18 |
jmc |
1.1 |
C *==========================================================* |
19 |
|
|
C \ev |
20 |
|
|
|
21 |
|
|
C !USES: |
22 |
|
|
IMPLICIT NONE |
23 |
|
|
C == Global variables == |
24 |
|
|
#include "SIZE.h" |
25 |
|
|
#include "EEPARAMS.h" |
26 |
|
|
#include "PARAMS.h" |
27 |
|
|
#include "GRID.h" |
28 |
|
|
#include "SURFACE.h" |
29 |
jmc |
1.3 |
#include "DYNVARS.h" |
30 |
jmc |
1.1 |
|
31 |
|
|
C !INPUT/OUTPUT PARAMETERS: |
32 |
|
|
C == Routine Arguments == |
33 |
jmc |
1.9 |
C bi,bj :: tile index |
34 |
jmc |
1.1 |
C iMin,iMax,jMin,jMax :: Loop counters |
35 |
jmc |
1.9 |
C phiHydC :: Hydrostatic Potential anomaly |
36 |
jmc |
1.1 |
C (atmos: =Geopotential ; ocean-z: =Pressure/rho) |
37 |
|
|
C alphRho :: Density (z-coord) or specific volume (p-coord) |
38 |
|
|
C tFld :: Potential temp. |
39 |
jmc |
1.9 |
C sFld :: Salinity |
40 |
jmc |
1.1 |
C dPhiHydX,Y :: Gradient (X & Y directions) of Hyd. Potential |
41 |
|
|
C myTime :: Current time |
42 |
|
|
C myIter :: Current iteration number |
43 |
|
|
C myThid :: Instance number for this call of the routine. |
44 |
|
|
INTEGER k, bi,bj, iMin,iMax, jMin,jMax |
45 |
jmc |
1.3 |
_RL phiHydC(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
46 |
jmc |
1.1 |
_RL alphRho(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
47 |
|
|
_RL tFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
48 |
|
|
_RL sFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
49 |
|
|
_RL dPhiHydX(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
50 |
|
|
_RL dPhiHydY(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
51 |
|
|
_RL myTime |
52 |
|
|
INTEGER myIter, myThid |
53 |
|
|
|
54 |
|
|
#ifdef INCLUDE_PHIHYD_CALCULATION_CODE |
55 |
|
|
|
56 |
|
|
C !LOCAL VARIABLES: |
57 |
|
|
C == Local variables == |
58 |
|
|
C i,j :: Loop counters |
59 |
|
|
INTEGER i,j |
60 |
|
|
_RL varLoc(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
61 |
jmc |
1.7 |
#ifdef NONLIN_FRSURF |
62 |
jmc |
1.3 |
_RL factorZ, factorP, conv_theta2T |
63 |
jmc |
1.5 |
_RL factPI |
64 |
|
|
CHARACTER*(MAX_LEN_MBUF) msgBuf |
65 |
jmc |
1.7 |
#endif |
66 |
jmc |
1.1 |
CEOP |
67 |
|
|
|
68 |
jmc |
1.3 |
#ifdef NONLIN_FRSURF |
69 |
jmc |
1.5 |
IF (select_rStar.GE.2 .AND. nonlinFreeSurf.GE.4 ) THEN |
70 |
heimbach |
1.8 |
# ifndef DISABLE_RSTAR_CODE |
71 |
jmc |
1.5 |
C- Integral of b.dr = rStarFac * Integral of b.dr* : |
72 |
jmc |
1.9 |
C and will add later (select_rStar=2) the contribution of |
73 |
jmc |
1.5 |
C the slope of the r* coordinate. |
74 |
|
|
IF ( buoyancyRelation .EQ. 'ATMOSPHERIC' ) THEN |
75 |
|
|
C- Consistent with Phi'= Integr[ theta'.dPi ] : |
76 |
|
|
DO j=jMin-1,jMax |
77 |
|
|
DO i=iMin-1,iMax |
78 |
|
|
varLoc(i,j) = phiHydC(i,j)*rStarFacC(i,j,bi,bj)**atm_kappa |
79 |
|
|
& + phi0surf(i,j,bi,bj) |
80 |
|
|
ENDDO |
81 |
|
|
ENDDO |
82 |
|
|
ELSE |
83 |
|
|
DO j=jMin-1,jMax |
84 |
|
|
DO i=iMin-1,iMax |
85 |
|
|
varLoc(i,j) = phiHydC(i,j)*rStarFacC(i,j,bi,bj) |
86 |
|
|
& + phi0surf(i,j,bi,bj) |
87 |
|
|
ENDDO |
88 |
|
|
ENDDO |
89 |
|
|
ENDIF |
90 |
|
|
ELSEIF (select_rStar.GE.1 .AND. nonlinFreeSurf.GE.4 ) THEN |
91 |
|
|
C- Integral of b.dr but scaled to correspond to a fixed r-level (=r*) |
92 |
|
|
C no contribution of the slope of the r* coordinate (select_rStar=1) |
93 |
|
|
IF ( buoyancyRelation .EQ. 'ATMOSPHERIC' ) THEN |
94 |
|
|
C- Consistent with Phi'= Integr[ theta'.dPi ] : |
95 |
|
|
DO j=jMin-1,jMax |
96 |
|
|
DO i=iMin-1,iMax |
97 |
|
|
IF (Ro_surf(i,j,bi,bj).EQ.rC(k)) THEN |
98 |
jmc |
1.9 |
factPI=atm_Cp*( ((etaH(i,j,bi,bj)+rC(k))/atm_Po)**atm_kappa |
99 |
|
|
& -( rC(k) /atm_Po)**atm_kappa |
100 |
jmc |
1.5 |
& ) |
101 |
|
|
varLoc(i,j) = factPI*alphRho(i,j) |
102 |
|
|
ELSEIF (Ro_surf(i,j,bi,bj).NE.0. _d 0) THEN |
103 |
|
|
factPI = (rC(k)/Ro_surf(i,j,bi,bj))**atm_kappa |
104 |
|
|
varLoc(i,j) = phiHydC(i,j) |
105 |
|
|
& *(rStarFacC(i,j,bi,bj)**atm_kappa - factPI) |
106 |
|
|
& /(1. _d 0 -factPI) |
107 |
|
|
& + phi0surf(i,j,bi,bj) |
108 |
|
|
ENDIF |
109 |
|
|
ENDDO |
110 |
|
|
ENDDO |
111 |
|
|
ELSE |
112 |
|
|
DO j=jMin-1,jMax |
113 |
|
|
DO i=iMin-1,iMax |
114 |
|
|
IF (Ro_surf(i,j,bi,bj).EQ.rC(k)) THEN |
115 |
jmc |
1.6 |
WRITE(msgBuf,'(3A)') 'CALC_GRAD_PHI_HYD: ', |
116 |
|
|
& 'Problem when Ro_surf=rC', |
117 |
|
|
& ' with select_rStar,integr_GeoPot=1,4' |
118 |
jmc |
1.5 |
CALL PRINT_ERROR( msgBuf , myThid) |
119 |
|
|
STOP 'CALC_GRAD_PHI_HYD: Pb in r* options implementation' |
120 |
|
|
ELSE |
121 |
|
|
varLoc(i,j) = phiHydC(i,j) |
122 |
|
|
& *(etaH(i,j,bi,bj)+Ro_surf(i,j,bi,bj)-rC(k)) |
123 |
|
|
& / (Ro_surf(i,j,bi,bj)-rC(k)) |
124 |
|
|
& + phi0surf(i,j,bi,bj) |
125 |
|
|
ENDIF |
126 |
|
|
ENDDO |
127 |
jmc |
1.3 |
ENDDO |
128 |
jmc |
1.5 |
ENDIF |
129 |
heimbach |
1.8 |
# endif /* DISABLE_RSTAR_CODE */ |
130 |
jmc |
1.3 |
ELSE |
131 |
|
|
#else /* NONLIN_FRSURF */ |
132 |
|
|
IF (.TRUE.) THEN |
133 |
|
|
#endif /* NONLIN_FRSURF */ |
134 |
|
|
DO j=jMin-1,jMax |
135 |
|
|
DO i=iMin-1,iMax |
136 |
|
|
varLoc(i,j) = phiHydC(i,j)+phi0surf(i,j,bi,bj) |
137 |
|
|
ENDDO |
138 |
|
|
ENDDO |
139 |
|
|
ENDIF |
140 |
jmc |
1.1 |
|
141 |
jmc |
1.3 |
C-- Zonal & Meridional gradient of potential anomaly |
142 |
jmc |
1.1 |
DO j=jMin,jMax |
143 |
|
|
DO i=iMin,iMax |
144 |
jmc |
1.9 |
dPhiHydX(i,j) = _recip_dxC(i,j,bi,bj)*recip_deepFacC(k) |
145 |
|
|
& *( varLoc(i,j)-varLoc(i-1,j) )*recip_rhoFacC(k) |
146 |
|
|
dPhiHydY(i,j) = _recip_dyC(i,j,bi,bj)*recip_deepFacC(k) |
147 |
|
|
& *( varLoc(i,j)-varLoc(i,j-1) )*recip_rhoFacC(k) |
148 |
jmc |
1.1 |
ENDDO |
149 |
|
|
ENDDO |
150 |
jmc |
1.3 |
|
151 |
|
|
#ifdef NONLIN_FRSURF |
152 |
|
|
IF (select_rStar.GE.2 .AND. nonlinFreeSurf.GE.1 ) THEN |
153 |
|
|
IF ( buoyancyRelation .EQ. 'OCEANIC' ) THEN |
154 |
|
|
C-- z* coordinate slope term: rho'/rho0 * Grad_r(g.z) |
155 |
jmc |
1.9 |
factorZ = gravity*recip_rhoConst*recip_rhoFacC(k)*0.5 _d 0 |
156 |
jmc |
1.3 |
DO j=jMin-1,jMax |
157 |
|
|
DO i=iMin-1,iMax |
158 |
|
|
varLoc(i,j) = etaH(i,j,bi,bj) |
159 |
|
|
& *(1. _d 0 + rC(k)*recip_Rcol(i,j,bi,bj)) |
160 |
|
|
ENDDO |
161 |
|
|
ENDDO |
162 |
|
|
DO j=jMin,jMax |
163 |
|
|
DO i=iMin,iMax |
164 |
|
|
dPhiHydX(i,j) = dPhiHydX(i,j) |
165 |
|
|
& +factorZ*(alphRho(i-1,j)+alphRho(i,j)) |
166 |
|
|
& *(varLoc(i,j)-varLoc(i-1,j)) |
167 |
jmc |
1.9 |
& *recip_dxC(i,j,bi,bj)*recip_deepFacC(k) |
168 |
jmc |
1.3 |
dPhiHydY(i,j) = dPhiHydY(i,j) |
169 |
|
|
& +factorZ*(alphRho(i,j-1)+alphRho(i,j)) |
170 |
|
|
& *(varLoc(i,j)-varLoc(i,j-1)) |
171 |
jmc |
1.9 |
& *recip_dyC(i,j,bi,bj)*recip_deepFacC(k) |
172 |
jmc |
1.3 |
ENDDO |
173 |
|
|
ENDDO |
174 |
|
|
ELSEIF (buoyancyRelation .EQ. 'OCEANICP' ) THEN |
175 |
|
|
C-- p* coordinate slope term: alpha' * Grad_r( p ) |
176 |
|
|
factorP = 0.5 _d 0 |
177 |
|
|
DO j=jMin,jMax |
178 |
|
|
DO i=iMin,iMax |
179 |
|
|
dPhiHydX(i,j) = dPhiHydX(i,j) |
180 |
|
|
& +factorP*(alphRho(i-1,j)+alphRho(i,j)) |
181 |
|
|
& *(rStarFacC(i,j,bi,bj)-rStarFacC(i-1,j,bi,bj)) |
182 |
jmc |
1.9 |
& *rC(k)*recip_dxC(i,j,bi,bj)*recip_deepFacC(k) |
183 |
jmc |
1.3 |
dPhiHydY(i,j) = dPhiHydY(i,j) |
184 |
|
|
& +factorP*(alphRho(i,j-1)+alphRho(i,j)) |
185 |
|
|
& *(rStarFacC(i,j,bi,bj)-rStarFacC(i,j-1,bi,bj)) |
186 |
jmc |
1.9 |
& *rC(k)*recip_dyC(i,j,bi,bj)*recip_deepFacC(k) |
187 |
jmc |
1.3 |
ENDDO |
188 |
|
|
ENDDO |
189 |
|
|
ELSEIF ( buoyancyRelation .EQ. 'ATMOSPHERIC' ) THEN |
190 |
|
|
C-- p* coordinate slope term: alpha' * Grad_r( p ) |
191 |
|
|
conv_theta2T = (rC(k)/atm_Po)**atm_kappa |
192 |
|
|
factorP = (atm_Rd/rC(k))*conv_theta2T*0.5 _d 0 |
193 |
|
|
DO j=jMin,jMax |
194 |
|
|
DO i=iMin,iMax |
195 |
|
|
dPhiHydX(i,j) = dPhiHydX(i,j) |
196 |
jmc |
1.5 |
& +factorP*(alphRho(i-1,j)+alphRho(i,j)) |
197 |
jmc |
1.3 |
& *(rStarFacC(i,j,bi,bj)-rStarFacC(i-1,j,bi,bj)) |
198 |
jmc |
1.9 |
& *rC(k)*recip_dxC(i,j,bi,bj)*recip_deepFacC(k) |
199 |
jmc |
1.3 |
dPhiHydY(i,j) = dPhiHydY(i,j) |
200 |
jmc |
1.5 |
& +factorP*(alphRho(i,j-1)+alphRho(i,j)) |
201 |
jmc |
1.3 |
& *(rStarFacC(i,j,bi,bj)-rStarFacC(i,j-1,bi,bj)) |
202 |
jmc |
1.9 |
& *rC(k)*recip_dyC(i,j,bi,bj)*recip_deepFacC(k) |
203 |
jmc |
1.3 |
ENDDO |
204 |
|
|
ENDDO |
205 |
|
|
ENDIF |
206 |
|
|
ENDIF |
207 |
|
|
#endif /* NONLIN_FRSURF */ |
208 |
jmc |
1.1 |
|
209 |
|
|
#endif /* INCLUDE_PHIHYD_CALCULATION_CODE */ |
210 |
|
|
|
211 |
|
|
RETURN |
212 |
|
|
END |