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heimbach |
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C $Header: /u/gcmpack/MITgcm/pkg/ecco/cost_salt.F,v 1.8 2005/10/15 18:27:32 heimbach Exp $ |
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#include "COST_CPPOPTIONS.h" |
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subroutine cost_salt( myiter, mytime, mythid ) |
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c ================================================================== |
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c SUBROUTINE cost_salt |
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c ================================================================== |
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c |
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c o Evaluate cost function contribution of salinity. |
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c |
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c started: Christian Eckert eckert@mit.edu 30-Jun-1999 |
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c |
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c changed: Christian Eckert eckert@mit.edu 25-Feb-2000 |
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c |
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c - Restructured the code in order to create a package |
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c for the MITgcmUV. |
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c |
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c changed: Patrick Heimbach heimbach@mit.edu 27-May-2000 |
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c |
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c - set ladinit to .true. to initialise adsbar file |
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c |
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c ================================================================== |
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c SUBROUTINE cost_salt |
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c ================================================================== |
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implicit none |
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c == global variables == |
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "cal.h" |
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#include "ecco_cost.h" |
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#include "ctrl.h" |
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#include "ctrl_dummy.h" |
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#include "optim.h" |
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#ifdef ALLOW_OBCS |
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#include "OBCS.h" |
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#endif |
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c == routine arguments == |
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integer myiter |
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_RL mytime |
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integer mythid |
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c == local variables == |
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integer bi,bj |
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integer i,j,k |
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integer itlo,ithi |
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integer jtlo,jthi |
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integer jmin,jmax |
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integer imin,imax |
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integer irec, irectmp |
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integer levmon |
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integer levoff |
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integer ilsalt |
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_RL fctile |
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_RL fcthread |
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_RL cmask (1-olx:snx+olx,1-oly:sny+oly) |
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_RL spval |
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_RL spmax |
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character*(80) fnamesalt |
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logical doglobalread |
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logical ladinit |
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character*(MAX_LEN_MBUF) msgbuf |
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#ifdef GENERIC_BAR_MONTH |
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integer mrec, nyears, iyear |
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#endif |
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_RL diagnosfld3d(1-olx:snx+olx,1-oly:sny+oly,nr,nsx,nsy) |
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c == external functions == |
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integer ilnblnk |
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external ilnblnk |
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c == end of interface == |
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jtlo = mybylo(mythid) |
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jthi = mybyhi(mythid) |
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itlo = mybxlo(mythid) |
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ithi = mybxhi(mythid) |
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jmin = 1 |
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jmax = sny |
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imin = 1 |
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imax = snx |
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spval = 25. |
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spmax = 40. |
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c-- Read tiled data. |
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doglobalread = .false. |
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ladinit = .false. |
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#ifdef ALLOW_SALT_COST_CONTRIBUTION |
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if (optimcycle .ge. 0) then |
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ilsalt = ilnblnk( sbarfile ) |
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write(fnamesalt(1:80),'(2a,i10.10)') |
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& sbarfile(1:ilsalt),'.',optimcycle |
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endif |
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fcthread = 0. _d 0 |
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#ifdef GENERIC_BAR_MONTH |
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c-- Loop over month |
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do irec = 1,min(nmonsrec,12) |
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nyears=int((nmonsrec-irec)/12)+1 |
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do iyear=1,nyears |
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mrec=irec+(iyear-1)*12 |
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irectmp=mrec |
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c-- Read time averages and the monthly mean data. |
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call active_read_xyz( fnamesalt, sbar, mrec, |
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& doglobalread, ladinit, |
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& optimcycle, mythid, |
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& xx_sbar_mean_dummy ) |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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do k = 1,nr |
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do j = jmin,jmax |
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do i = imin,imax |
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if(iyear.eq.1) then |
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sbar_gen(i,j,k,bi,bj) =sbar(i,j,k,bi,bj) |
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elseif(iyear.eq.nyears) then |
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sbar(i,j,k,bi,bj) =(sbar_gen(i,j,k,bi,bj) |
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$ +sbar(i,j,k,bi,bj))/float(nyears) |
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else |
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sbar_gen(i,j,k,bi,bj) =sbar_gen(i,j,k,bi,bj) |
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$ +sbar(i,j,k,bi,bj) |
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endif |
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enddo |
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enddo |
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enddo |
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enddo |
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enddo |
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enddo |
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#else |
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c-- Loop over records. |
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do irec = 1,nmonsrec |
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irectmp=irec |
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c-- Read time averages and the monthly mean data. |
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call active_read_xyz( fnamesalt, sbar, irec, |
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& doglobalread, ladinit, |
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& optimcycle, mythid, |
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& xx_sbar_mean_dummy ) |
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#endif |
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c-- Determine the month to be read. |
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levoff = mod(modelstartdate(1)/100,100) |
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levmon = (irectmp-1) + levoff |
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levmon = mod(levmon-1,12)+1 |
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call mdsreadfield( sdatfile, cost_iprec, cost_yftype, |
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& nr, sdat, levmon, mythid) |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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c-- Loop over the model layers |
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fctile = 0. _d 0 |
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do k = 1,nr |
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c-- Determine the mask or weights |
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do j = jmin,jmax |
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do i = imin,imax |
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cmask(i,j) = cosphi(i,j,bi,bj) |
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if (sdat(i,j,k,bi,bj) .eq. 0.) then |
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cmask(i,j) = 0. _d 0 |
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else if (sdat(i,j,k,bi,bj) .lt. spval) then |
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cmask(i,j) = 0. _d 0 |
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else if (sdat(i,j,k,bi,bj) .gt. spmax) then |
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cmask(i,j) = 0. _d 0 |
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#ifdef ALLOW_OBCS_NORTH |
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else if (OB_Jn(i,bi,bj).EQ.j) THEN |
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cmask(i,j) = 0. _d 0 |
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#endif |
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endif |
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enddo |
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enddo |
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c-- Compute model data misfit and cost function term for |
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c the salinity field. |
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do j = jmin,jmax |
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do i = imin,imax |
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if ( _hFacC(i,j,k,bi,bj) .ne. 0. ) then |
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fctile = fctile + |
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& (wsaltLev(i,j,k,bi,bj)*cmask(i,j)* |
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& (sbar(i,j,k,bi,bj) - sdat(i,j,k,bi,bj))* |
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& (sbar(i,j,k,bi,bj) - sdat(i,j,k,bi,bj)) ) |
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if ( wsaltLev(i,j,k,bi,bj)*cmask(i,j) .ne. 0. ) |
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& num_salt(bi,bj) = num_salt(bi,bj) + 1. _d 0 |
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diagnosfld3d(i,j,k,bi,bj) = |
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& (wsaltLev(i,j,k,bi,bj)*cmask(i,j)* |
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& (sbar(i,j,k,bi,bj) - sdat(i,j,k,bi,bj))* |
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& (sbar(i,j,k,bi,bj) - sdat(i,j,k,bi,bj)) ) |
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else |
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diagnosfld3d(i,j,k,bi,bj) = 0. |
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endif |
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enddo |
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enddo |
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enddo |
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c-- End of loop over layers. |
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call mdswritefield( 'DiagnosCost_ClimSalt', |
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& writeBinaryPrec, globalfiles, 'RL', Nr, |
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& diagnosfld3d, irec, optimcycle, mythid ) |
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fcthread = fcthread + fctile |
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objf_salt(bi,bj) = objf_salt(bi,bj) + fctile |
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enddo |
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enddo |
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enddo |
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c-- End of loop over records. |
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#endif |
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return |
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end |
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