1 |
heimbach |
1.5 |
C $Header: /u/gcmpack/MITgcm/pkg/thsice/thsice_slab_ocean.F,v 1.4 2005/11/04 01:34:35 jmc Exp $ |
2 |
jmc |
1.1 |
C $Name: $ |
3 |
|
|
|
4 |
|
|
#include "THSICE_OPTIONS.h" |
5 |
|
|
|
6 |
|
|
CBOP |
7 |
|
|
C !ROUTINE: THSICE_SLAB_OCEAN |
8 |
|
|
C !INTERFACE: |
9 |
|
|
SUBROUTINE THSICE_SLAB_OCEAN( |
10 |
jmc |
1.3 |
O dTsurf, |
11 |
jmc |
1.1 |
I bi, bj, myThid ) |
12 |
|
|
C !DESCRIPTION: \bv |
13 |
|
|
C *==========================================================* |
14 |
|
|
C | S/R THSICE_SLAB_OCEAN |
15 |
|
|
C | o Slab ocean for atmosphere (and sea-ice) model |
16 |
|
|
C *==========================================================* |
17 |
|
|
C | o add ocean-surface fluxes + restoring term |
18 |
|
|
C | and step forward ocean mixed-layer Temp. & Salinity |
19 |
|
|
C *==========================================================* |
20 |
|
|
C \ev |
21 |
|
|
|
22 |
|
|
C !USES: |
23 |
|
|
IMPLICIT NONE |
24 |
|
|
|
25 |
|
|
C == Global variables == |
26 |
|
|
C-- MITgcm |
27 |
|
|
#include "SIZE.h" |
28 |
|
|
#include "EEPARAMS.h" |
29 |
|
|
#include "PARAMS.h" |
30 |
|
|
#include "FFIELDS.h" |
31 |
|
|
|
32 |
|
|
C-- Sea-Ice package |
33 |
|
|
#include "THSICE_PARAMS.h" |
34 |
|
|
#include "THSICE_VARS.h" |
35 |
|
|
|
36 |
|
|
C-- Physics package |
37 |
|
|
#ifdef ALLOW_AIM |
38 |
|
|
#include "AIM_FFIELDS.h" |
39 |
|
|
#endif |
40 |
|
|
|
41 |
|
|
C !INPUT/OUTPUT PARAMETERS: |
42 |
|
|
C == Routine Arguments == |
43 |
jmc |
1.3 |
_RL dTsurf(sNx,sNy) |
44 |
jmc |
1.1 |
INTEGER bi,bj |
45 |
|
|
INTEGER myThid |
46 |
|
|
CEOP |
47 |
|
|
|
48 |
|
|
#ifdef ALLOW_THSICE |
49 |
|
|
|
50 |
|
|
C == Local variables == |
51 |
|
|
C i,j :: Loop counters |
52 |
jmc |
1.4 |
_RL dtFac, fwFac, heatFac |
53 |
|
|
#ifdef ALLOW_AIM |
54 |
|
|
_RL oceTfreez, locTemp, dtFacR |
55 |
|
|
#endif |
56 |
jmc |
1.1 |
INTEGER i,j |
57 |
|
|
|
58 |
heimbach |
1.5 |
cph the following structure is not supported by TAF |
59 |
|
|
cph IF ( .NOT.stepFwd_oceMxL ) RETURN |
60 |
|
|
IF ( stepFwd_oceMxL ) THEN |
61 |
jmc |
1.1 |
|
62 |
|
|
C-- add heat flux and fresh-water + salt flux : |
63 |
|
|
dtFac = ocean_deltaT/rhosw |
64 |
|
|
fwFac = ocean_deltaT*sMxL_default*rhofw/rhosw |
65 |
|
|
heatFac = ocean_deltaT/(cpwater*rhosw) |
66 |
|
|
DO j=1,sNy |
67 |
|
|
DO i=1,sNx |
68 |
|
|
IF ( hOceMxL(i,j,bi,bj).NE.0. _d 0 ) THEN |
69 |
jmc |
1.3 |
dTsurf(i,j) = tOceMxL(i,j,bi,bj) |
70 |
jmc |
1.1 |
tOceMxL(i,j,bi,bj) = tOceMxL(i,j,bi,bj) |
71 |
|
|
& - heatFac*Qnet(i,j,bi,bj) / hOceMxL(i,j,bi,bj) |
72 |
|
|
sOceMxL(i,j,bi,bj) = sOceMxL(i,j,bi,bj) |
73 |
|
|
& + (fwFac*EmPmR(i,j,bi,bj) - dtFac*saltFlux(i,j,bi,bj)) |
74 |
|
|
& / hOceMxL(i,j,bi,bj) |
75 |
|
|
ENDIF |
76 |
|
|
ENDDO |
77 |
|
|
ENDDO |
78 |
|
|
|
79 |
|
|
#ifdef ALLOW_AIM |
80 |
|
|
IF ( tauRelax_MxL .GT. 0. _d 0 ) THEN |
81 |
|
|
C-- add restoring (backward) toward climatological Temp. & fixed Salinity |
82 |
|
|
dtFac = ocean_deltaT/tauRelax_MxL |
83 |
|
|
dtFacR = 1. _d 0 /(1. _d 0 + dtFac) |
84 |
|
|
oceTfreez = - 1.9 _d 0 |
85 |
|
|
DO j=1,sNy |
86 |
|
|
DO i=1,sNx |
87 |
|
|
IF ( hOceMxL(i,j,bi,bj).NE.0. _d 0 ) THEN |
88 |
jmc |
1.2 |
sOceMxL(i,j,bi,bj) = |
89 |
|
|
& (sOceMxL(i,j,bi,bj) + dtFac*sMxL_default)*dtFacR |
90 |
|
|
oceTfreez = -mu_Tf*sOceMxL(i,j,bi,bj) |
91 |
jmc |
1.1 |
locTemp = ( aim_sWght0*aim_sst0(i,j,bi,bj) |
92 |
|
|
& + aim_sWght1*aim_sst1(i,j,bi,bj) |
93 |
|
|
& ) - celsius2K |
94 |
|
|
locTemp = MAX( locTemp , oceTfreez ) |
95 |
|
|
tOceMxL(i,j,bi,bj) = |
96 |
|
|
& (tOceMxL(i,j,bi,bj) + dtFac*locTemp)*dtFacR |
97 |
|
|
ENDIF |
98 |
|
|
ENDDO |
99 |
|
|
ENDDO |
100 |
|
|
ENDIF |
101 |
|
|
#endif /* ALLOW_AIM */ |
102 |
|
|
|
103 |
jmc |
1.3 |
C- Diagnose surf. temp. change |
104 |
|
|
DO j=1,sNy |
105 |
|
|
DO i=1,sNx |
106 |
|
|
IF ( hOceMxL(i,j,bi,bj).NE.0. _d 0 ) THEN |
107 |
|
|
dTsurf(i,j) = tOceMxL(i,j,bi,bj) - dTsurf(i,j) |
108 |
|
|
ENDIF |
109 |
|
|
ENDDO |
110 |
|
|
ENDDO |
111 |
|
|
|
112 |
heimbach |
1.5 |
c-- End of IF ( stepFwd_oceMxL ) THEN |
113 |
|
|
ENDIF |
114 |
|
|
|
115 |
jmc |
1.1 |
#endif /* ALLOW_THSICE */ |
116 |
|
|
|
117 |
|
|
RETURN |
118 |
|
|
END |