/[MITgcm]/MITgcm/pkg/seaice/groatb.F
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revision 1.1.2.7 by dimitri, Fri May 23 08:07:09 2003 UTC revision 1.2 by heimbach, Tue Nov 12 20:47:27 2002 UTC
# Line 19  C     === Global variables === Line 19  C     === Global variables ===
19  #include "FFIELDS.h"  #include "FFIELDS.h"
20  #include "SEAICE.h"  #include "SEAICE.h"
21  #include "SEAICE_FFIELDS.h"  #include "SEAICE_FFIELDS.h"
22         COMMON /SEAICE_BOUND_RL/  
      &    MAX_HEFF, MIN_ATEMP, MIN_LWDOWN, MAX_TICE, MIN_TICE,  
      &    SEAICE_EPS, SEAICE_EPS_SQ  
       _RL SEAICE_EPS, SEAICE_EPS_SQ  
       _RL MAX_HEFF, MIN_ATEMP, MIN_LWDOWN, MAX_TICE, MIN_TICE  
   
23  C     === Routine arguments ===  C     === Routine arguments ===
24  C     myThid - Thread no. that called this routine.  C     myThid - Thread no. that called this routine.
25        _RL A22        _RL A22
# Line 34  CEndOfInterface Line 29  CEndOfInterface
29  #ifdef ALLOW_SEAICE  #ifdef ALLOW_SEAICE
30    
31  C     === Local variables ===  C     === Local variables ===
32  C     i,j,bi,bj - Loop counters  C     i,j,k,bi,bj - Loop counters
33    
34        INTEGER i, j, bi, bj        INTEGER i, j, k, bi, bj
35        INTEGER KOPEN        INTEGER KOPEN
36        _RL U1, V1, SPEED_SQ        _RL U1, V1
37    
38        _RL HICE (1-OLx:sNx+OLx, 1-OLy:sNy+OLy)        _RL HICE (1-OLx:sNx+OLx, 1-OLy:sNy+OLy)
39          _RL AR   (1-OLx:sNx+OLx, 1-OLy:sNy+OLy)
40        _RL UG   (1-OLx:sNx+OLx, 1-OLy:sNy+OLy)        _RL UG   (1-OLx:sNx+OLx, 1-OLy:sNy+OLy)
41    
 #ifdef SEAICE_MULTILEVEL  
       INTEGER it  
       _RL RK  
       _RL HICEP(1-OLx:sNx+OLx, 1-OLy:sNy+OLy)  
       _RL FICEP(1-OLx:sNx+OLx, 1-OLy:sNy+OLy)  
 #endif  
   
42  C if this is not done before then do it here  C if this is not done before then do it here
43        _EXCH_XY_R8(UWIND, myThid)        _EXCH_XY_R8(GAIRX, myThid)
44        _EXCH_XY_R8(VWIND, myThid)        _EXCH_XY_R8(GAIRY, myThid)
45    
 c$taf loop = parallel  
46        DO bj=myByLo(myThid),myByHi(myThid)        DO bj=myByLo(myThid),myByHi(myThid)
 c$taf loop = parallel  
47         DO bi=myBxLo(myThid),myBxHi(myThid)         DO bi=myBxLo(myThid),myBxHi(myThid)
48    
49  C DETERMINE AMOUNT OF OPEN WATER AND ICE THICKNESS  C DETERMINE AMOUNT OF OPEN WATER AND ICE THICKNESS
50          DO J=1,sNy          DO J=1,sNy
51           DO I=1,sNx           DO I=1,sNx
52            AREA(I,J,2,bi,bj)=MAX(A22,AREA(I,J,2,bi,bj))            AREA(I,J,2,bi,bj)=MAX(A22,AREA(I,J,2,bi,bj))
53            FHEFF(I,J,bi,bj)=0.0 _d 0            FHEFF(I,J,bi,bj)=0.0
 #ifdef SEAICE_MULTILEVEL  
           FICEP(I,J)=0.0 _d 0  
 #endif  
54            HICE(I,J)=HEFF(I,J,2,bi,bj)/AREA(I,J,2,bi,bj)            HICE(I,J)=HEFF(I,J,2,bi,bj)/AREA(I,J,2,bi,bj)
55           ENDDO           ENDDO
56          ENDDO          ENDDO
# Line 73  C DETERMINE AMOUNT OF OPEN WATER AND ICE Line 58  C DETERMINE AMOUNT OF OPEN WATER AND ICE
58  C NOW DETERMINE MIXED LAYER TEMPERATURE  C NOW DETERMINE MIXED LAYER TEMPERATURE
59          DO J=1,sNy          DO J=1,sNy
60           DO I=1,sNx           DO I=1,sNx
61            TMIX(I,J,bi,bj)=theta(I,J,1,bi,bj)+273.16 _d +00            TMIX(I,J,bi,bj)=theta(I,J,1,bi,bj)+273.16E+00
62  #ifdef SEAICE_DEBUG  #ifdef SEAICE_DEBUG
63            TMIX(I,J,bi,bj)=MAX(TMIX(I,J,bi,bj),271.2 _d +00)            TMIX(I,J,bi,bj)=MAX(TMIX(I,J,bi,bj),271.2E+00)
64  #endif  #endif SEAICE_DEBUG
65           ENDDO           ENDDO
66          ENDDO          ENDDO
67    
68          DO J=1,sNy          DO J=1,sNy
69           DO I=1,sNx           DO I=1,sNx
70            U1=0.25 _d 0*(UWIND(I+1,J+1,bi,bj)+UWIND(I+1,J,bi,bj)            U1=0.25*(GAIRX(I-1,J-1,bi,bj)+GAIRX(I-1,J,bi,bj)
71       1      +UWIND(I,J+1,bi,bj)+UWIND(I,J,bi,bj))       1      +GAIRX(I,J-1,bi,bj)+GAIRX(I,J,bi,bj))
72            V1=0.25 _d 0*(VWIND(I+1,J+1,bi,bj)+VWIND(I+1,J,bi,bj)            V1=0.25*(GAIRY(I-1,J-1,bi,bj)+GAIRY(I-1,J,bi,bj)
73       1      +VWIND(I,J+1,bi,bj)+VWIND(I,J,bi,bj))       1      +GAIRY(I,J-1,bi,bj)+GAIRY(I,J,bi,bj))
74            SPEED_SQ = U1**2 + V1**2            UG(I,J)=SQRT(U1**2+V1**2)
           IF ( SPEED_SQ .LT. SEAICE_EPS_SQ ) THEN  
              UG(I,J)=SEAICE_EPS  
           ELSE  
              UG(I,J)=SQRT(SPEED_SQ)  
           ENDIF  
75           ENDDO           ENDDO
76          ENDDO          ENDDO
77    
# Line 101  C FIRST DO OPEN WATER Line 81  C FIRST DO OPEN WATER
81          CALL BUDGET(UG, TMIX, HICE, FO, KOPEN, bi, bj)          CALL BUDGET(UG, TMIX, HICE, FO, KOPEN, bi, bj)
82  C NOW DO ICE  C NOW DO ICE
83          KOPEN=1          KOPEN=1
 #ifdef SEAICE_MULTILEVEL  
         DO IT=1,7  
          DO J=1,sNy  
           DO I=1,sNx  
            RK=IT*1.0  
            HICEP(I,J)=(HICE(I,J)/7.0 _d 0)*((2.0 _d 0*RK)-1.0 _d 0)  
            TICE(I,J,bi,bj)=TICES(I,J,IT,bi,bj)  
           ENDDO  
          ENDDO  
          CALL BUDGET(UG, TICE, HICEP, FICE, KOPEN, bi, bj)  
          DO J=1,sNy  
           DO I=1,sNx  
            FICEP(I,J)=(FICE(I,J,bi,bj)/7.0 _d 0)+FICEP(I,J)  
            TICES(I,J,IT,bi,bj)=TICE(I,J,bi,bj)  
           ENDDO  
          ENDDO  
         ENDDO  
         DO J=1,sNy  
          DO I=1,sNx  
           FICE(I,J,bi,bj)=FICEP(I,J)  
          ENDDO  
         ENDDO  
 #else  /* SEAICE_MULTILEVEL */  
84          CALL BUDGET(UG, TICE, HICE, FICE, KOPEN, bi, bj)          CALL BUDGET(UG, TICE, HICE, FICE, KOPEN, bi, bj)
 #endif /* SEAICE_MULTILEVEL */  
85    
86         ENDDO         ENDDO
87        ENDDO        ENDDO
88    
89  #endif /* ALLOW_SEAICE */  #endif ALLOW_SEAICE
90    
91        RETURN        RETURN
92        END        END
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