--- MITgcm/pkg/seaice/seaice_calc_strainrates.F	2007/11/13 19:26:25	1.8
+++ MITgcm/pkg/seaice/seaice_calc_strainrates.F	2009/03/18 10:26:49	1.10
@@ -1,4 +1,4 @@
-C $Header: /home/ubuntu/mnt/e9_copy/MITgcm/pkg/seaice/seaice_calc_strainrates.F,v 1.8 2007/11/13 19:26:25 jmc Exp $
+C $Header: /home/ubuntu/mnt/e9_copy/MITgcm/pkg/seaice/seaice_calc_strainrates.F,v 1.10 2009/03/18 10:26:49 mlosch Exp $
 C $Name:  $
 
 #include "SEAICE_OPTIONS.h"
@@ -7,7 +7,7 @@
       SUBROUTINE SEAICE_CALC_STRAINRATES(
      I     uFld, vFld,
      O     e11, e22, e12,
-     I     iStep, myTime, myIter, myThid )
+     I     kSize, iStep, myTime, myIter, myThid )
 C     /==========================================================\
 C     | SUBROUTINE  SEAICE_CALC_STRAINRATES                      |
 C     | o compute strain rates from ice velocities               |
@@ -32,13 +32,15 @@
 C     myTime :: Simulation time
 C     myIter :: Simulation timestep number
 C     myThid :: My Thread Id. number
+C     kSize  :: length of 3rd dimension of velocity variables
       INTEGER iStep
       _RL     myTime
       INTEGER myIter
       INTEGER myThid
+      INTEGER kSize
 C     ice velocities
-      _RL uFld(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy)
-      _RL vFld(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy)
+      _RL uFld(1-Olx:sNx+Olx,1-Oly:sNy+Oly,kSize,nSx,nSy)
+      _RL vFld(1-Olx:sNx+Olx,1-Oly:sNy+Oly,kSize,nSx,nSy)
 C     strain rate tensor
       _RL e11 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
       _RL e22 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
@@ -62,25 +64,25 @@
          DO i=1-Olx,sNx+Olx-1
 C     evaluate strain rates
           e11(I,J,bi,bj) = _recip_dxF(I,J,bi,bj) *
-     &         (uFld(I+1,J,bi,bj)-uFld(I,J,bi,bj))
+     &         (uFld(I+1,J,1,bi,bj)-uFld(I,J,1,bi,bj))
      &         -HALF*
-     &         (vFld(I,J,bi,bj)+vFld(I,J+1,bi,bj))
+     &         (vFld(I,J,1,bi,bj)+vFld(I,J+1,1,bi,bj))
      &         * _tanPhiAtU(I,J,bi,bj)*recip_rSphere
           e22(I,J,bi,bj) = _recip_dyF(I,J,bi,bj) *
-     &         (vFld(I,J+1,bi,bj)-vFld(I,J,bi,bj))
+     &         (vFld(I,J+1,1,bi,bj)-vFld(I,J,1,bi,bj))
 C     one metric term is missing
          ENDDO
         ENDDO
         DO j=1-Oly+1,sNy+Oly
          DO i=1-Olx+1,sNx+Olx
           e12(I,J,bi,bj) = HALF*(
-     &         (uFld(I  ,J  ,bi,bj) * _dxC(I  ,J  ,bi,bj)
-     &         -uFld(I  ,J-1,bi,bj) * _dxC(I  ,J-1,bi,bj)
-     &         +vFld(I  ,J  ,bi,bj) * _dyC(I  ,J  ,bi,bj)
-     &         -vFld(I-1,J  ,bi,bj) * _dyC(I-1,J  ,bi,bj))
+     &         (uFld(I  ,J  ,1,bi,bj) * _dxC(I  ,J  ,bi,bj)
+     &         -uFld(I  ,J-1,1,bi,bj) * _dxC(I  ,J-1,bi,bj)
+     &         +vFld(I  ,J  ,1,bi,bj) * _dyC(I  ,J  ,bi,bj)
+     &         -vFld(I-1,J  ,1,bi,bj) * _dyC(I-1,J  ,bi,bj))
      &         * recip_rAz(I,J,bi,bj)
      &         +
-     &         0.25 _d 0 * (uFld(I,J,bi,bj)+uFld(I  ,J-1,bi,bj))
+     &         0.25 _d 0 * (uFld(I,J,1,bi,bj)+uFld(I  ,J-1,1,bi,bj))
      &         * ( _tanPhiAtU(I,J,bi,bj) + _tanPhiAtU(I,J-1,bi,bj) )
      &         *recip_rSphere
      &         )
@@ -97,13 +99,13 @@
            hFacV = _maskS(i,j,k,bi,bj) - _maskS(i-1,j,k,bi,bj)
 
            e12(I,J,bi,bj) = e12(I,J,bi,bj)
-     &          + recip_rAz(i,j,bi,bj) *
-     &          ( hFacU * ( _dxC(i,j-1,bi,bj)*uFld(i,j  ,bi,bj)
-     &                    + _dxC(i,j,  bi,bj)*uFld(i,j-1,bi,bj) )
-     &          + hFacV * ( _dyC(i-1,j,bi,bj)*vFld(i  ,j,bi,bj)
-     &                    + _dyC(i,  j,bi,bj)*vFld(i-1,j,bi,bj) ) )
+     &          + recip_rAz(i,j,bi,bj) * 2. _d 0 *
+     &          ( hFacU * ( _dxC(i,j-1,bi,bj)*uFld(i,j  ,1,bi,bj)
+     &                    + _dxC(i,j,  bi,bj)*uFld(i,j-1,1,bi,bj) )
+     &          + hFacV * ( _dyC(i-1,j,bi,bj)*vFld(i  ,j,1,bi,bj)
+     &                    + _dyC(i,  j,bi,bj)*vFld(i-1,j,1,bi,bj) ) )
      &         - hFacU
-     &         * 0.25 _d 0 * (uFld(I,J,bi,bj)+uFld(I  ,J-1,bi,bj))
+     &         * 0.25 _d 0 * (uFld(I,J,1,bi,bj)+uFld(I  ,J-1,1,bi,bj))
      &         * ( _tanPhiAtU(I,J,bi,bj) + _tanPhiAtU(I,J-1,bi,bj) )
      &         *recip_rSphere
 C     one metric term is missing