/[MITgcm]/MITgcm/pkg/seaice/seaice_ocean_stress.F
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revision 1.25 by mlosch, Wed Jun 24 08:01:43 2009 UTC revision 1.26 by mlosch, Wed Jun 24 08:56:46 2009 UTC
# Line 36  CEndOfInterface Line 36  CEndOfInterface
36  #ifdef SEAICE_CGRID  #ifdef SEAICE_CGRID
37  C     === Local variables ===  C     === Local variables ===
38  C     i,j,bi,bj - Loop counters  C     i,j,bi,bj - Loop counters
39    C     kSrf      - vertical index of surface layer
40        INTEGER i, j, bi, bj        INTEGER i, j, bi, bj
41          INTEGER kSrf
42        _RL  SINWAT, COSWAT, SINWIN, COSWIN        _RL  SINWAT, COSWAT, SINWIN, COSWIN
43        _RL  fuIceLoc, fvIceLoc        _RL  fuIceLoc, fvIceLoc
44        _RL  areaW, areaS        _RL  areaW, areaS
45    
46  c     introduce turning angle (default is zero)  C     surrface level
47          kSrf = 1
48    C     introduce turning angle (default is zero)
49        SINWAT=SIN(SEAICE_waterTurnAngle*deg2rad)        SINWAT=SIN(SEAICE_waterTurnAngle*deg2rad)
50        COSWAT=COS(SEAICE_waterTurnAngle*deg2rad)        COSWAT=COS(SEAICE_waterTurnAngle*deg2rad)
51        SINWIN=SIN(SEAICE_airTurnAngle*deg2rad)        SINWIN=SIN(SEAICE_airTurnAngle*deg2rad)
# Line 86  C     ice cover Line 89  C     ice cover
89           DO i=1,sNx           DO i=1,sNx
90            fuIceLoc=HALF*( DWATN(I,J,bi,bj)+DWATN(I-1,J,bi,bj) )*            fuIceLoc=HALF*( DWATN(I,J,bi,bj)+DWATN(I-1,J,bi,bj) )*
91       &         COSWAT *       &         COSWAT *
92       &         ( UICE(I,J,bi,bj)-uVel(I,J,1,bi,bj) )       &         ( uIce(I,J,bi,bj)-uVel(I,J,kSrf,bi,bj) )
93       &         - SIGN(SINWAT, _fCori(I,J,bi,bj)) * 0.5 _d 0 *       &         - SIGN(SINWAT, _fCori(I,J,bi,bj)) * 0.5 _d 0 *
94       &         ( DWATN(I  ,J,bi,bj) *       &         ( DWATN(I  ,J,bi,bj) *
95       &         0.5 _d 0*(vIce(I  ,J  ,bi,bj)-vVel(I  ,J  ,1,bi,bj)       &         0.5 _d 0*(vIce(I  ,J  ,bi,bj)-vVel(I  ,J  ,kSrf,bi,bj)
96       &                  +vIce(I  ,J+1,bi,bj)-vVel(I  ,J+1,1,bi,bj))       &                  +vIce(I  ,J+1,bi,bj)-vVel(I  ,J+1,kSrf,bi,bj))
97       &         + DWATN(I-1,J,bi,bj) *       &         + DWATN(I-1,J,bi,bj) *
98       &         0.5 _d 0*(vIce(I-1,J  ,bi,bj)-vVel(I-1,J  ,1,bi,bj)       &         0.5 _d 0*(vIce(I-1,J  ,bi,bj)-vVel(I-1,J  ,kSrf,bi,bj)
99       &                  +vIce(I-1,J+1,bi,bj)-vVel(I-1,J+1,1,bi,bj))       &                  +vIce(I-1,J+1,bi,bj)-vVel(I-1,J+1,kSrf,bi,bj))
100       &         )       &         )
101            fvIceLoc=HALF*( DWATN(I,J,bi,bj)+DWATN(I,J-1,bi,bj) )*            fvIceLoc=HALF*( DWATN(I,J,bi,bj)+DWATN(I,J-1,bi,bj) )*
102       &         COSWAT *       &         COSWAT *
103       &         ( VICE(I,J,bi,bj)-vVel(I,J,1,bi,bj) )       &         ( vIce(I,J,bi,bj)-vVel(I,J,kSrf,bi,bj) )
104       &         + SIGN(SINWAT,  _fCori(I,J,bi,bj)) * 0.5 _d 0 *       &         + SIGN(SINWAT,  _fCori(I,J,bi,bj)) * 0.5 _d 0 *
105       &         ( DWATN(I,J  ,bi,bj) *       &         ( DWATN(I,J  ,bi,bj) *
106       &         0.5 _d 0*(uIce(I  ,J  ,bi,bj)-uVel(I  ,J  ,1,bi,bj)       &         0.5 _d 0*(uIce(I  ,J  ,bi,bj)-uVel(I  ,J  ,kSrf,bi,bj)
107       &                  +uIce(I+1,J  ,bi,bj)-uVel(I+1,J  ,1,bi,bj))       &                  +uIce(I+1,J  ,bi,bj)-uVel(I+1,J  ,kSrf,bi,bj))
108       &         + DWATN(I,J-1,bi,bj) *       &         + DWATN(I,J-1,bi,bj) *
109       &         0.5 _d 0*(uIce(I  ,J-1,bi,bj)-uVel(I  ,J-1,1,bi,bj)       &         0.5 _d 0*(uIce(I  ,J-1,bi,bj)-uVel(I  ,J-1,kSrf,bi,bj)
110       &                  +uIce(I+1,J-1,bi,bj)-uVel(I+1,J-1,1,bi,bj))       &                  +uIce(I+1,J-1,bi,bj)-uVel(I+1,J-1,kSrf,bi,bj))
111       &         )       &         )
112            areaW = 0.5 _d 0 * (AREA(I,J,bi,bj) + AREA(I-1,J,bi,bj))            areaW = 0.5 _d 0 * (AREA(I,J,bi,bj) + AREA(I-1,J,bi,bj))
113       &         * SEAICEstressFactor       &         * SEAICEstressFactor
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