C $Header: /u/gcmpack/MITgcm/verification/fizhi-cs-aqualev20/code/update_ocean_exports.F,v 1.8 2010/03/16 00:27:00 jmc Exp $
C $Name:  $

#include "FIZHI_OPTIONS.h"
       subroutine UPDATE_OCEAN_EXPORTS (myTime, myIter, myThid)
c----------------------------------------------------------------------
c  Subroutine update_ocean_exports - 'Wrapper' routine to update
c        the fields related to the ocean surface that are needed
c        by fizhi (sst and sea ice extent).
c
c Call:  getsst  (Return the current sst field-read dataset if needed)
c        getsice (Return the current sea ice field-read data if needed)
c-----------------------------------------------------------------------
       implicit none
#include "SIZE.h"
#include "GRID.h"
#include "fizhi_ocean_coms.h"
#include "EEPARAMS.h"
#include "chronos.h"
#ifdef ALLOW_EXCH2
#include "W2_EXCH2_SIZE.h"
#include "W2_EXCH2_TOPOLOGY.h"
#endif /* ALLOW_EXCH2 */

       integer myIter, myThid
       _RL myTime

       INTEGER xySize
#if defined(ALLOW_EXCH2)
       PARAMETER ( xySize = W2_ioBufferSize )
#else
       PARAMETER ( xySize = Nx*Ny )
#endif
       integer i, j, bi, bj, bislot, bjslot
       integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2
       integer xsize, ysize
       _RL        sstmin
       parameter ( sstmin = 273.16 )

       _RL sst1 (xySize), sst2 (xySize)
       _RL sice1(xySize), sice2(xySize)
c      _RL sst1(xsize,ysize),sst2(xsize,ysize)
c      _RL sice1(xsize,ysize),sice2(xsize,ysize)
       integer nymd1sst(nSx,nSy),nymd2sst(nSx,nSy)
       integer nymd1sice(nSx,nSy),nymd2sice(nSx,nSy)
       integer nhms1sst(nSx,nSy),nhms2sst(nSx,nSy)
       integer nhms1sice(nSx,nSy),nhms2sice(nSx,nSy)
       integer sstdates(370,nSx,nSy),sicedates(370,nSx,nSy)
       integer ssttimes(370,nSx,nSy),sicetimes(370,nSx,nSy)
       logical first(nSx,nSy)
       integer nSxnSy
       parameter(nSxnSy = nSx*nSy)
       data first/nSxnSy*.true./

       save nymd1sst,nymd2sst,nymd1sice,nymd2sice
       save nhms1sst,nhms2sst,nhms1sice,nhms2sice
       save sst1, sst2, sice1, sice2
       save sstdates, sicedates
       save ssttimes, sicetimes

#if defined(ALLOW_EXCH2)
       xsize = exch2_global_Nx
       ysize = exch2_global_Ny
#else
       xsize = Nx
       ysize = Ny
#endif
       idim1 = 1-OLx
       idim2 = sNx+OLx
       jdim1 = 1-OLy
       jdim2 = sNy+OLy
       im1 = 1
       im2 = sNx
       jm1 = 1
       jm2 = sNy

C***********************************************************************

       DO BJ = myByLo(myThid),myByHi(myThid)
       DO BI = myBxLo(myThid),myBxHi(myThid)
#if defined(ALLOW_EXCH2)
       bislot = exch2_txglobalo(W2_myTileList(bi,bj))-1
       bjslot = exch2_tyglobalo(W2_myTileList(bi,bj))-1
#else
       bislot = myXGlobalLo-1+(bi-1)*sNx
       bjslot = myYGlobalLo-1+(bj-1)*sNy
#endif

       call GETSST(ksst,sstclim,idim1,idim2,jdim1,jdim2,im1,im2,
     .  jm1,jm2,nSx,nSy,xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms,
     .  sst1,sst2,first(bi,bj),nymd1sst(bi,bj),nymd2sst(bi,bj),
     .  nhms1sst(bi,bj),nhms2sst(bi,bj),sstdates(1,bi,bj),
     .  ssttimes(1,bi,bj),sst,myThid)
       call GETSICE(kice,siceclim,idim1,idim2,jdim1,jdim2,im1,im2,
     .  jm1,jm2,nSx,nSy,xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms,
     .  sice1,sice2,first(bi,bj),nymd1sice(bi,bj),nymd2sice(bi,bj),
     .  nhms1sice(bi,bj),nhms2sice(bi,bj),sicedates(1,bi,bj),
     .  sicetimes(1,bi,bj),sice,myThid)

c Check for Minimum Open-Water SST
c --------------------------------
       do j=jm1,jm2
       do i=im1,im2
       if(sice(i,j,bi,bj).eq.0.0 .and. sst(i,j,bi,bj).lt.sstmin)
     .                                          sst(i,j,bi,bj) = sstmin
       enddo
       enddo

       ENDDO
       ENDDO
       _EXCH_XY_RL(sst,myThid)
       _EXCH_XY_RL(sice,myThid)

       return
       end


subroutine GETSICE(iunit,clim,idim1,idim2,jdim1,jdim2,im1,im2, . jm1,jm2,nSumx,nSumy,xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms, . sicebc1,sicebc2,first,nymdbc1,nymdbc2,nhmsbc1,nhmsbc2, . nymdbc,nhmsbc,sice,mythid) C*********************************************************************** C C!ROUTINE: GETSICE C!DESCRIPTION: GETSICE returns the sea ice depth. C! This routine is adaptable for any frequency C! data upto a daily frequency. C! note: for diurnal data ndmax should be increased. C C!INPUT PARAMETERS: C! iunit Unit number assigned to the sice data file C! idim1 Start dimension in x-direction C! idim2 End dimension in x-direction C! jdim1 Start dimension in y-direction C! jdim2 End dimension in y-direction C! im1 Begin of x-direction span for filling sice C! im2 End of x-direction span for filling sice C! jm1 Begin of y-direction span for filling sice C! jm2 End of y-direction span for filling sice C! nSumx Number of processors in x-direction (local processor) C! nSumy Number of processors in y-direction (local processor) C! xsize Number of processors in x-direction (global) C! ysize Number of processors in y-direction (global) C! bi Processor number in x-direction (local to processor) C! bj Processor number in y-direction (local to processor) C! bislot Processor number in x-direction (global) C! bjslot Processor number in y-direction (global) C! nymd YYMMDD of the current model timestep C! nhms HHMMSS of the model time C C!OUTPUT PARAMETERS: C! sice(idim1:idim2,jdim1:jdim2,nSumx,nSumy) Sea ice depth in meters C C!ROUTINES CALLED: C C! bcdata Reads the data for a given unit number C! bcheader Reads the header info for a given unit number C! interp_time Returns weights for linear interpolation C C-------------------------------------------------------------------------- implicit none #include "SIZE.h" #include "GRID.h" integer iunit,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2,nSumx,nSumy integer xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms,mythid _RL sicebc1(xsize,ysize) _RL sicebc2(xsize,ysize) _RL sice(idim1:idim2,jdim1:jdim2,nSumx,nSumy) integer nhmsbc1,nhmsbc2,nymdbc1,nymdbc2 logical first logical clim C Maximum number of dates in one year for the data integer ndmax parameter (ndmax = 370) integer nymdbc(ndmax),nhmsbc(ndmax) integer i,j do j = jm1,jm2 do i = im1,im2 sice(i,j,bi,bj) = 0. enddo enddo return end


subroutine GETSST(iunit,clim,idim1,idim2,jdim1,jdim2,im1,im2, . jm1,jm2,nSumx,nSumy,xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms, . sstbc1,sstbc2,first,nymdbc1,nymdbc2,nhmsbc1,nhmsbc2, . nymdbc,nhmsbc,sst,mythid) C*********************************************************************** C C!ROUTINE: GETSST C!DESCRIPTION: GETSST gets the SST data. C! This routine is adaptable for any frequency C! data upto a daily frequency. C! note: for diurnal data ndmax should be increased. C C!INPUT PARAMETERS: C! iunit Unit number assigned to the sice data file C! idim1 Start dimension in x-direction C! idim2 End dimension in x-direction C! jdim1 Start dimension in y-direction C! jdim2 End dimension in y-direction C! im1 Begin of x-direction span for filling sst C! im2 End of x-direction span for filling sst C! jm1 Begin of y-direction span for filling sst C! jm2 End of y-direction span for filling sst C! nSumx Number of processors in x-direction (local processor) C! nSumy Number of processors in y-direction (local processor) C! xsize x-dimension of global array C! ysize y-dimension of global array C! bi Processor number in x-direction (local to processor) C! bj Processor number in y-direction (local to processor) C! bislot Slot number into global array in x-direction (global) C! bjslot Slot number into global array in y-direction (global) C! nymd YYMMDD of the current model timestep C! nhms HHMMSS of the model time C C!OUTPUT PARAMETERS: C! sst(idim1:idim2,jdim1:jdim2,nSumx,nSumy) Sea surface temperature (K) C C!ROUTINES CALLED: C C! bcdata Reads the data for a given unit number C! bcheader Reads the header info for a given unit number C! interp_time Returns weights for linear interpolation C C-------------------------------------------------------------------------- implicit none #include "SIZE.h" #include "GRID.h" integer iunit,idim1,idim2,jdim1,jdim2,im1,im2,jm1,jm2,nSumx,nSumy integer xsize,ysize,bi,bj,bislot,bjslot,nymd,nhms,mythid _RL sstbc1(xsize,ysize) _RL sstbc2(xsize,ysize) _RL sst(idim1:idim2,jdim1:jdim2,nSumx,nSumy) integer nhmsbc1,nhmsbc2,nymdbc1,nymdbc2 logical first logical clim C Maximum number of dates in one year for the data integer ndmax parameter (ndmax = 370) integer nymdbc(ndmax),nhmsbc(ndmax) _RL getcon _RL pi,pio2,pio3,mpio3,pio36,deg2rad,sinarg c _RL factor,cosarg1,cosarg2 integer i,j deg2rad = getcon('DEG2RAD') pi = getcon('PI') pio2 = pi / 2. _d 0 pio3 = pi / 3. _d 0 pio36 = pi / 36. _d 0 mpio3 = -1. _d 0 * pi / 3. _d 0 do j = jm1,jm2 do i = im1,im2 C Control - max sst on equator, zonally symmetric if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) else sst(i,j,bi,bj) = 273.16 endif C Experiment 2 - Peaked C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C factor = 3.*abs(yc(i,j,bi,bj))*deg2rad/pi C sst(i,j,bi,bj) = 273.16 + 27.*(1.-factor) C else C sst(i,j,bi,bj) = 273.16 C endif C Experiment 3 - Flat C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. C sst(i,j,bi,bj) = 273.16 + C . 27.*(1.-(sin(sinarg)*sin(sinarg)*sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C Experiment 4 - Qobs - average of control and exp 3 C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. C sst(i,j,bi,bj) = 273.16 + 0.5*27* C . (2.- (sin(sinarg)*sin(sinarg)) - C . (sin(sinarg)*sin(sinarg)*sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C Experiment 5 - max sst at 5N, zonally symmetric C if( (yc(i,j,bi,bj)*deg2rad .lt. pio3 ) .and. C . (yc(i,j,bi,bj)*deg2rad .gt. pio36 ) ) then C sinarg = (90./55.)*(yc(i,j,bi,bj)*deg2rad-pio36) C sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) C elseif ( (yc(i,j,bi,bj)*deg2rad .le. pio36 ) .and. C . (yc(i,j,bi,bj)*deg2rad .gt. mpio3 ) ) then C sinarg = (90./65.)*(yc(i,j,bi,bj)*deg2rad-pio36) C sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C Experiment 6 - 1KEQ max sst at equator, + anomaly centered at greenwich C first set the control sst profile C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. C sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C and now add the anomaly C if( (abs(yc(i,j,bi,bj)) .lt. 15. _d 0) .and. C . (abs(xc(i,j,bi,bj)) .lt. 30. _d 0) ) then C cosarg1 = pio2*(xc(i,j,bi,bj)/30. _d 0) C cosarg2 = pio2*(yc(i,j,bi,bj)/15. _d 0) C sst(i,j,bi,bj) = sst(i,j,bi,bj) + C . cos(cosarg1)*cos(cosarg1)*cos(cosarg2)*cos(cosarg2) C endif C Experiment 7 - 3KEQ max sst at equator, + anomaly centered at greenwich C first set the control sst profile C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. C sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C and now add the anomaly C if( (abs(yc(i,j,bi,bj)) .lt. 15. _d 0) .and. C . (abs(xc(i,j,bi,bj)) .lt. 30. _d 0) ) then C cosarg1 = pio2*(xc(i,j,bi,bj)/30. _d 0) C cosarg2 = pio2*(yc(i,j,bi,bj)/15. _d 0) C sst(i,j,bi,bj) = sst(i,j,bi,bj) + C . 3.*cos(cosarg1)*cos(cosarg1)*cos(cosarg2)*cos(cosarg2) C endif C Experiment 8 - 3KW1 max sst at equator, +/- anomaly centered at greenwich C first set the control sst profile C if( abs(yc(i,j,bi,bj)*deg2rad) .lt. pio3 ) then C sinarg = 3.*yc(i,j,bi,bj)*deg2rad/2. C sst(i,j,bi,bj) = 273.16 + 27.*(1.-(sin(sinarg)*sin(sinarg))) C else C sst(i,j,bi,bj) = 273.16 C endif C and now add the anomaly C if( abs(yc(i,j,bi,bj)) .lt. 30.0 _d 0 ) then C cosarg1 = (xc(i,j,bi,bj))*deg2rad C cosarg2 = pio2*(yc(i,j,bi,bj)/30.0 _d 0) C sst(i,j,bi,bj) = sst(i,j,bi,bj) + C . 3.*cos(cosarg1)*cos(cosarg2)*cos(cosarg2) C endif enddo enddo return end