C $Header: /u/gcmpack/MITgcm/pkg/ecco/cost_xbt.F,v 1.11 2010/08/24 14:34:19 jmc Exp $
C $Name: $
#include "COST_CPPOPTIONS.h"
subroutine COST_XBT(
I myiter,
I mytime,
I mythid
& )
c ==================================================================
c SUBROUTINE cost_XBT
c ==================================================================
c
c o Evaluate cost function contribution of XBT temperature data.
c
c started: Elisabeth Remy eremy@ucsd.edu 30-Aug-2000
c
c
c ==================================================================
c SUBROUTINE cost_XBT
c ==================================================================
implicit none
c == global variables ==
#include "EEPARAMS.h"
#include "SIZE.h"
#include "GRID.h"
#include "DYNVARS.h"
#include "cal.h"
#include "ecco_cost.h"
#include "ctrl.h"
#include "ctrl_dummy.h"
#include "optim.h"
c == routine arguments ==
integer myiter
_RL mytime
integer mythid
c == local variables ==
integer bi,bj
integer i,j,k
integer itlo,ithi
integer jtlo,jthi
integer jmin,jmax
integer imin,imax
integer nrec
integer irec
integer ilu
_RL fctile_xbt
_RL fcthread_xbt
_RL www (1-olx:snx+olx,1-oly:sny+oly)
_RL tmpobs (1-olx:snx+olx,1-oly:sny+oly)
_RL cmask (1-olx:snx+olx,1-oly:sny+oly)
_RL spval
_RL spmax
_RL ztop,rl_35,rl_0
character*(80) fnametheta
logical doglobalread
logical ladinit
character*(MAX_LEN_MBUF) msgbuf
cnew(
integer il
integer mody, modm
integer iyear, imonth
character*(80) fnametmp
logical exst
cnew)
c == external functions ==
integer ilnblnk
external
_RL SW_PTMP
external
c == end of interface ==
jtlo = mybylo(mythid)
jthi = mybyhi(mythid)
itlo = mybxlo(mythid)
ithi = mybxhi(mythid)
jmin = 1
jmax = sny
imin = 1
imax = snx
spval = -1.8
spmax = 40.
ztop = -.981*1.027
rl_35 = 35.0
rl_0 = 0.0
c-- Read state record from global file.
doglobalread = .false.
ladinit = .false.
#ifdef ALLOW_XBT_COST_CONTRIBUTION
if (optimcycle .ge. 0) then
ilu=ilnblnk( tbarfile )
write(fnametheta(1:80),'(2a,i10.10)')
& tbarfile(1:ilu),'.',optimcycle
endif
fcthread_xbt = 0. _d 0
cnew(
mody = modelstartdate(1)/10000
modm = modelstartdate(1)/100 - mody*100
cnew)
c-- Loop over records.
do irec = 1,nmonsrec
c-- Read time averages and the monthly mean data.
call ACTIVE_READ_XYZ( fnametheta, tbar, irec,
& doglobalread, ladinit,
& optimcycle, mythid
& , xx_tbar_mean_dummy )
cnew(
iyear = mody + INT((modm-1+irec-1)/12)
imonth = 1 + MOD(modm-1+irec-1,12)
il=ilnblnk(xbtfile)
write(fnametmp(1:80),'(2a,i4)')
& xbtfile(1:il), '_', iyear
inquire( file=fnametmp, exist=exst )
if (.NOT. exst) then
write(fnametmp(1:80),'(a)') xbtfile(1:il)
imonth = irec
endif
call MDSREADFIELD( fnametmp, cost_iprec, 'RL', nr, xbtobs,
& imonth, mythid)
cnew)
c-- Loop over this thread tiles.
do bj = jtlo,jthi
do bi = itlo,ithi
c-- Loop over the model layers
fctile_xbt = 0. _d 0
do k = 1,nr
c-- Determine the weights to be used.
do j = jmin,jmax
do i = imin,imax
cmask(i,j) = cosphi(i,j,bi,bj)
if ( xbtobs(i,j,k,bi,bj) .lt. spval .or.
& xbtobs(i,j,k,bi,bj) .gt. spmax .or.
& xbtobs(i,j,k,bi,bj) .eq. 0. ) then
cmask(i,j) = 0. _d 0
endif
cph(
cph print *, 'WARNING: SPECIFIC SETUP FOR ECCO'
cph below statement could be replaced by following
cph to make it independnet of Nr:
cph
cph if ( rC(K) .GT. -1000. ) then
cph)
enddo
enddo
do j = jmin,jmax
do i = imin,imax
if ( _hFacC(i,j,k,bi,bj) .ne. 0. ) then
tmpobs(i,j) = SW_PTMP(rl_35,
$ xbtobs(i,j,k,bi,bj),ztop*rc(k),rl_0)
c-- The array ctdtobs contains CTD temperature.
fctile_xbt = fctile_xbt +
& (wtheta2(i,j,k,bi,bj)*cmask(i,j))*
& (tbar(i,j,k,bi,bj)-tmpobs(i,j))*
& (tbar(i,j,k,bi,bj)-tmpobs(i,j))
if ( wtheta2(i,j,k,bi,bj)*cmask(i,j) .ne. 0. )
& num_xbt(bi,bj) = num_xbt(bi,bj) + 1. _d 0
endif
enddo
enddo
c-- End of loop over layers.
enddo
fcthread_xbt = fcthread_xbt + fctile_xbt
objf_xbt(bi,bj) = objf_xbt(bi,bj) + fctile_xbt
#ifdef ECCO_VERBOSE
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,i8.8,1x,i3.3,1x,i3.3)')
& ' COST_XBT: irec,bi,bj = ',irec,bi,bj
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,d22.15)')
& ' COST_XBT: cost function = ', fctile_xbt
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
#endif
enddo
enddo
#ifdef ECCO_VERBOSE
c-- Print cost function for all tiles.
_GLOBAL_SUM_RL( fcthread_xbt , myThid )
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,i8.8)')
& ' cost_XBT: irec = ',irec
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,a,d22.15)')
& ' global cost function value',
& ' ( XBT temp. ) = ',fcthread_xbt
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
#endif
enddo
c-- End of second loop over records.
#else
c-- Do not enter the calculation of the XBT temperature contribution
c-- to the final cost function.
fctile_xbt = 0. _d 0
fcthread_xbt = 0. _d 0
crg
nrec = 1
crg
_BEGIN_MASTER( mythid )
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,a)')
& ' cost_XBT: no contribution of XBT temperature ',
& ' to cost function.'
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a,a,i9.8)')
& ' cost_XBT: number of records that would have',
& ' been processed: ',nrec
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
write(msgbuf,'(a)') ' '
call PRINT_MESSAGE( msgbuf, standardmessageunit,
& SQUEEZE_RIGHT , mythid)
_END_MASTER( mythid )
#endif
return
end