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C $Header: /u/gcmpack/MITgcm/pkg/ctrl/ctrl_getobcsn.F,v 1.15 2012/08/10 19:38:57 jmc Exp $ |
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C $Name: $ |
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|
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#include "CTRL_OPTIONS.h" |
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#ifdef ALLOW_OBCS |
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# include "OBCS_OPTIONS.h" |
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#endif |
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|
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subroutine ctrl_getobcsn( |
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I mytime, |
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I myiter, |
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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 ctrl_getobcsn |
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c ================================================================== |
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c |
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c o Get northern obc of the control vector and add it |
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c to dyn. fields |
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c |
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c started: heimbach@mit.edu, 29-Aug-2001 |
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c |
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c modified: gebbie@mit.edu, 18-Mar-2003 |
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c ================================================================== |
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c SUBROUTINE ctrl_getobcsn |
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c ================================================================== |
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|
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implicit none |
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|
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c == global variables == |
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#ifdef ALLOW_OBCSN_CONTROL |
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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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c#include "OBCS_PARAMS.h" |
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#include "OBCS_GRID.h" |
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#include "OBCS_FIELDS.h" |
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#include "CTRL_SIZE.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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#endif /* ALLOW_OBCSN_CONTROL */ |
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|
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c == routine arguments == |
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_RL mytime |
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integer myiter |
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integer mythid |
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|
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#ifdef ALLOW_OBCSN_CONTROL |
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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,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 ilobcsn |
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integer iobcs |
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integer jp1 |
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|
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_RL dummy |
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_RL obcsnfac |
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logical obcsnfirst |
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logical obcsnchanged |
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integer obcsncount0 |
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integer obcsncount1 |
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|
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cgg _RL maskxz (1-olx:snx+olx,nr,nsx,nsy) |
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_RL tmpfldxz (1-olx:snx+olx,nr,nsx,nsy) |
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|
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logical doglobalread |
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logical ladinit |
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|
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character*(80) fnameobcsn |
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|
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#ifdef ALLOW_OBCS_CONTROL_MODES |
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integer nk,nz |
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_RL tmpz (nr,nsx,nsy) |
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_RL stmp |
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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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|
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|
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c == end of interface == |
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|
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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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cgg jmin = 1-oly |
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cgg jmax = sny+oly |
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cgg imin = 1-olx |
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cgg imax = snx+olx |
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|
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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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jp1 = 0 |
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|
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c-- Now, read the control vector. |
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doglobalread = .false. |
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ladinit = .false. |
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|
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if (optimcycle .ge. 0) then |
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ilobcsn=ilnblnk( xx_obcsn_file ) |
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write(fnameobcsn(1:80),'(2a,i10.10)') |
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& xx_obcsn_file(1:ilobcsn), '.', optimcycle |
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endif |
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|
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c-- Get the counters, flags, and the interpolation factor. |
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call ctrl_get_gen_rec( |
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I xx_obcsnstartdate, xx_obcsnperiod, |
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O obcsnfac, obcsnfirst, obcsnchanged, |
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O obcsncount0,obcsncount1, |
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I mytime, myiter, mythid ) |
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|
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do iobcs = 1,nobcs |
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if ( obcsnfirst ) then |
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call active_read_xz( fnameobcsn, tmpfldxz, |
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& (obcsncount0-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcsn_dummy ) |
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|
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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#ifdef ALLOW_OBCS_CONTROL_MODES |
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if (iobcs .gt. 2) then |
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do i = imin,imax |
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j = OB_Jn(i,bi,bj) |
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IF ( j.EQ.OB_indexNone ) j = 1 |
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cih Determine number of open vertical layers. |
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nz = 0 |
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do k = 1,Nr |
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if (iobcs .eq. 3) then |
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nz = nz + maskS(i,j+jp1,k,bi,bj) |
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else |
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nz = nz + maskW(i,j,k,bi,bj) |
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endif |
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end do |
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cih Compute absolute velocities from the barotropic-baroclinic modes. |
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do k = 1,Nr |
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if (k.le.nz) then |
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stmp = 0. |
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do nk = 1,nz |
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stmp = stmp + |
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& modesv(k,nk,nz)*tmpfldxz(i,nk,bi,bj) |
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end do |
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tmpz(k,bi,bj) = stmp |
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else |
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tmpz(k,bi,bj) = 0. |
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end if |
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end do |
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do k = 1,Nr |
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if (iobcs .eq. 3) then |
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tmpfldxz(i,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacS(i,j+jp1,k,bi,bj) |
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else |
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tmpfldxz(i,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacW(i,j,k,bi,bj) |
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endif |
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end do |
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enddo |
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endif |
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#endif |
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do k = 1,nr |
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do i = imin,imax |
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xx_obcsn1(i,k,bi,bj,iobcs) = tmpfldxz (i,k,bi,bj) |
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cgg & * maskxz (i,k,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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endif |
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|
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if ( (obcsnfirst) .or. (obcsnchanged)) then |
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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 k = 1,nr |
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do i = imin,imax |
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xx_obcsn0(i,k,bi,bj,iobcs) = xx_obcsn1(i,k,bi,bj,iobcs) |
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tmpfldxz (i,k,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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call active_read_xz( fnameobcsn, tmpfldxz, |
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& (obcsncount1-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcsn_dummy ) |
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|
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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#ifdef ALLOW_OBCS_CONTROL_MODES |
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if (iobcs .gt. 2) then |
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do i = imin,imax |
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j = OB_Jn(i,bi,bj) |
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IF ( j.EQ.OB_indexNone ) j = 1 |
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cih Determine number of open vertical layers. |
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nz = 0 |
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do k = 1,Nr |
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if (iobcs .eq. 3) then |
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nz = nz + maskS(i,j+jp1,k,bi,bj) |
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else |
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nz = nz + maskW(i,j,k,bi,bj) |
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endif |
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end do |
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cih Compute absolute velocities from the barotropic-baroclinic modes. |
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do k = 1,Nr |
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if (k.le.nz) then |
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stmp = 0. |
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do nk = 1,nz |
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stmp = stmp + |
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& modesv(k,nk,nz)*tmpfldxz(i,nk,bi,bj) |
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end do |
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tmpz(k,bi,bj) = stmp |
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else |
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tmpz(k,bi,bj) = 0. |
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end if |
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end do |
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do k = 1,Nr |
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if (iobcs .eq. 3) then |
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tmpfldxz(i,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacS(i,j+jp1,k,bi,bj) |
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else |
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tmpfldxz(i,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacW(i,j,k,bi,bj) |
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endif |
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end do |
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enddo |
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endif |
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#endif |
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do k = 1,nr |
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do i = imin,imax |
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xx_obcsn1 (i,k,bi,bj,iobcs) = tmpfldxz (i,k,bi,bj) |
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cgg & * maskxz (i,k,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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endif |
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|
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c-- Add control to model variable. |
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do bj = jtlo,jthi |
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do bi = itlo,ithi |
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c-- Calculate mask for tracer cells (0 => land, 1 => water). |
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do k = 1,nr |
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do i = 1,snx |
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j = OB_Jn(I,bi,bj) |
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IF ( j.EQ.OB_indexNone ) j = 1 |
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if (iobcs .EQ. 1) then |
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OBNt(i,k,bi,bj) = OBNt (i,k,bi,bj) |
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& + obcsnfac *xx_obcsn0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcsnfac)*xx_obcsn1(i,k,bi,bj,iobcs) |
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OBNt(i,k,bi,bj) = OBNt(i,k,bi,bj) |
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& *maskS(i,j+jp1,k,bi,bj) |
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else if (iobcs .EQ. 2) then |
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OBNs(i,k,bi,bj) = OBNs (i,k,bi,bj) |
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& + obcsnfac *xx_obcsn0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcsnfac)*xx_obcsn1(i,k,bi,bj,iobcs) |
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OBNs(i,k,bi,bj) = OBNs(i,k,bi,bj) |
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& *maskS(i,j+jp1,k,bi,bj) |
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else if (iobcs .EQ. 4) then |
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OBNu(i,k,bi,bj) = OBNu (i,k,bi,bj) |
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& + obcsnfac *xx_obcsn0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcsnfac)*xx_obcsn1(i,k,bi,bj,iobcs) |
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OBNu(i,k,bi,bj) = OBNu(i,k,bi,bj) |
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& *maskW(i,j,k,bi,bj) |
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else if (iobcs .EQ. 3) then |
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OBNv(i,k,bi,bj) = OBNv (i,k,bi,bj) |
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& + obcsnfac *xx_obcsn0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcsnfac)*xx_obcsn1(i,k,bi,bj,iobcs) |
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OBNv(i,k,bi,bj) = OBNv(i,k,bi,bj) |
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& *maskS(i,j+jp1,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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|
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C-- End over iobcs loop |
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enddo |
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|
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#endif /* ALLOW_OBCSN_CONTROL */ |
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|
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return |
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end |
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