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C $Header: /u/gcmpack/development/heimbach/ecco_env/pkg/cost/cost_ssh.F,v 1.12 2001/06/12 19:13:37 ralf Exp $ |
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#include "COST_CPPOPTIONS.h" |
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subroutine cost_ssh( |
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I myiter, |
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I mytime, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c SUBROUTINE cost_ssh |
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c ================================================================== |
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c |
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c o Evaluate cost function contribution of sea surface height. |
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c using of geoid error covariances requires regular model grid |
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c |
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c started: Detlef Stammer, Ralf Giering Jul-1996 |
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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: Ralf Giering Ralf.Giering@FastOpt.de 12-Jun-2001 |
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c |
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c - totally rewrite for parallel processing |
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c |
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c ================================================================== |
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c SUBROUTINE cost_ssh |
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c ================================================================== |
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implicit none |
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|
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c == global variables == |
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|
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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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|
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#include "cost.h" |
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#include "optim.h" |
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|
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c == routine arguments == |
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|
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integer myiter |
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_RL mytime |
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integer mythid |
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|
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#ifdef ALLOW_SSH_COST_CONTRIBUTION |
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c == local variables == |
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|
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integer bi,bj |
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integer i,j |
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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 |
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integer ilps |
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|
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logical doglobalread |
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logical ladinit |
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|
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_RL offset |
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_RL erscost |
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_RL tpcost |
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_RL costmean |
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_RL offset_sum |
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_RL dummy |
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_RL psmean ( 1-olx:snx+olx, 1-oly:sny+oly, nsx, nsy ) |
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_RL wwwtp ( 1-olx:snx+olx, 1-oly:sny+oly ) |
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_RL wwwers ( 1-olx:snx+olx, 1-oly:sny+oly ) |
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_RL junk |
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|
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character*(80) fname |
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#ifdef ECCO_VERBOSE |
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character*(MAX_LEN_MBUF) msgbuf |
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#endif |
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|
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c == external functions == |
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|
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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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c-- Initialise local variables. |
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costmean = 0. _d 0 |
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do j = jmin, jmax |
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do i = imin, imax |
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wwwtp(i,j) = 0. _d 0 |
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wwwers(i,j) = 0. _d 0 |
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enddo |
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enddo |
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c-- First, read tiled data. |
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doglobalread = .false. |
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ladinit = .true. |
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write(fname(1:80),'(80a)') ' ' |
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ilps=ilnblnk( psbarfile ) |
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write(fname(1:80),'(2a,i10.10)') |
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& psbarfile(1:ilps),'.',optimcycle |
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|
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c-- ============ |
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c-- Mean values. |
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c-- ============ |
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|
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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do j = jmin,jmax |
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do i = imin,imax |
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psmean(i,j,bi,bj) = 0. _d 0 |
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enddo |
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enddo |
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enddo |
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enddo |
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|
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c-- Loop over records for the first time. |
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do irec = 1, ndaysrec |
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c-- Compute the mean over all psbar records. |
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call active_read_xy( fname, psbar, irec, doglobalread, |
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& ladinit, optimcycle, mythid, dummy) |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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do j = jmin,jmax |
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do i = imin,imax |
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psmean(i,j,bi,bj) = psmean(i,j,bi,bj) + |
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& psbar(i,j,bi,bj)*frame(i,j)/float(ndaysrec) |
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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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call cost_ReadTopexMean( mythid ) |
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c-- Compute and remove offset for current tile and sum over all |
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c-- tiles of this instance. |
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offset = 0. _d 0 |
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offset_sum = 0. _d 0 |
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c-- Sum over this thread's tiles. |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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do j = 1,sny |
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do i = 1,snx |
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offset = offset + |
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& tpmeanmask(i,j,bi,bj)*cosphi(i,j,bi,bj)* |
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& (tpmean(i,j,bi,bj) - psmean(i,j,bi,bj)) |
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offset_sum = offset_sum + |
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& tpmeanmask(i,j,bi,bj)*cosphi(i,j,bi,bj) |
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enddo |
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enddo |
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enddo |
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enddo |
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|
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c-- Do a global summation. |
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_GLOBAL_SUM_R8( offset , mythid ) |
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_GLOBAL_SUM_R8( offset_sum , mythid ) |
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if (offset_sum .eq. 0.0) then |
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_BEGIN_MASTER( mythid ) |
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print* |
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print*,' cost_ssh: offset_sum = zero!' |
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print* |
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_END_MASTER( mythid ) |
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stop ' ... stopped in cost_ssh.' |
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else |
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_BEGIN_MASTER( mythid ) |
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print* |
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print*,' cost_ssh: offset_sum = ',offset_sum |
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print* |
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_END_MASTER( mythid ) |
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endif |
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offset = offset / offset_sum |
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#ifdef ALLOW_SSH_MEAN_COST_CONTRIBUTION |
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|
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c-- ========== |
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c-- Mean |
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c-- ========== |
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c-- compute mean ssh difference cost contribution |
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call cost_ssh_mean( |
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I psmean, offset |
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O , costmean |
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I , mythid |
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& ) |
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objf_hmean = costmean |
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#endif /* ALLOW_SSH_MEAN_COST_CONTRIBUTION */ |
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c-- ========== |
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c-- Anomalies. |
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c-- ========== |
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erscost = 0. _d 0 |
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tpcost = 0. _d 0 |
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c-- Loop over records for the second time. |
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do irec = 1, ndaysrec |
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call active_read_xy( fname, psbar, irec, doglobalread, |
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& ladinit, optimcycle, mythid, dummy) |
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#ifdef ALLOW_SSH_TPANOM_COST_CONTRIBUTION |
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call cost_ReadTopex( irec, mythid ) |
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#endif |
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#ifdef ALLOW_SSH_ERSANOM_COST_CONTRIBUTION |
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call cost_ReadERS( irec, mythid ) |
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#endif |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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erscost = 0. _d 0 |
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tpcost = 0. _d 0 |
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#ifdef ALLOW_SSH_TPANOM_COST_CONTRIBUTION |
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do j = jmin,jmax |
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do i = imin,imax |
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c-- The array psobs contains SSH anomalies. |
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wwwtp(i,j) = wtp(i,j,bi,bj) *cosphi(i,j,bi,bj) |
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junk = ((psbar(i,j,bi,bj) - psmean(i,j,bi,bj)) - |
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& tpobs(i,j,bi,bj))*tpmask(i,j,bi,bj) |
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tpcost = tpcost + junk*junk*wwwtp(i,j) |
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enddo |
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enddo |
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#endif |
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#ifdef ALLOW_SSH_ERSANOM_COST_CONTRIBUTION |
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do j = jmin,jmax |
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do i = imin,imax |
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c-- The array ersobs contains SSH anomalies. |
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wwwers(i,j) = wers(i,j,bi,bj)*cosphi(i,j,bi,bj) |
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junk = ((psbar(i,j,bi,bj) - psmean(i,j,bi,bj)) - |
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& ersobs(i,j,bi,bj))*ersmask(i,j,bi,bj) |
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erscost = erscost + junk*junk*wwwers(i,j) |
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enddo |
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enddo |
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#endif |
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objf_h(bi,bj) = objf_h(bi,bj) + tpcost + erscost |
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#ifdef ECCO_VERBOSE |
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write(msgbuf,'(a)') ' ' |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,i8.8,1x,i3.3,1x,i3.3)') |
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& ' COST_SSH: irec,bi,bj = ',irec,bi,bj |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,d22.15)') |
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& ' COST_SSH: cost function (TOPEX) = ',tpcost |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,d22.15)') |
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& ' COST_SSH: cost function (ERS) = ',erscost |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a,d22.15)') |
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& ' COST_SSH: cost function (Total) = ',objf_h(bi,bj) |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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write(msgbuf,'(a)') ' ' |
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call print_message( msgbuf, standardmessageunit, |
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& SQUEEZE_RIGHT , mythid) |
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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 second loop over records. |
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#endif /* ifdef ALLOW_SSH_COST_CONTRIBUTION */ |
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end |
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