C $Header: /u/gcmpack/MITgcm/pkg/ctrl/ctrl_getobcsw.F,v 1.17 2014/10/09 00:49:26 gforget Exp $ C $Name: $ #include "CTRL_OPTIONS.h" #ifdef ALLOW_OBCS # include "OBCS_OPTIONS.h" #endif subroutine ctrl_getobcsw( I mytime, I myiter, I mythid & ) c ================================================================== c SUBROUTINE ctrl_getobcsw c ================================================================== c c o Get western obc of the control vector and add it c to dyn. fields c c started: heimbach@mit.edu, 29-Aug-2001 c c modified: gebbie@mit.edu, 18-Mar-2003 c ================================================================== c SUBROUTINE ctrl_getobcsw c ================================================================== implicit none c == global variables == #ifdef ALLOW_OBCSW_CONTROL #include "EEPARAMS.h" #include "SIZE.h" #include "PARAMS.h" #include "GRID.h" c#include "OBCS_PARAMS.h" #include "OBCS_GRID.h" #include "OBCS_FIELDS.h" #include "CTRL_SIZE.h" #include "ctrl.h" #include "ctrl_dummy.h" #include "CTRL_OBCS.h" #include "optim.h" #endif /* ALLOW_OBCSW_CONTROL */ c == routine arguments == _RL mytime integer myiter integer mythid #ifdef ALLOW_OBCSW_CONTROL c == local variables == integer bi,bj integer i,j,k integer itlo,ithi integer jtlo,jthi integer jmin,jmax integer imin,imax integer ilobcsw integer iobcs integer ip1 _RL dummy _RL obcswfac logical obcswfirst logical obcswchanged integer obcswcount0 integer obcswcount1 cgg _RL maskyz (1-oly:sny+oly,nr,nsx,nsy) _RL tmpfldyz (1-oly:sny+oly,nr,nsx,nsy) logical doglobalread logical ladinit character*(80) fnameobcsw #ifdef ALLOW_OBCS_CONTROL_MODES integer nk,nz _RL tmpz (nr,nsx,nsy) _RL stmp #endif c == external functions == integer ilnblnk external ilnblnk c == end of interface == jtlo = mybylo(mythid) jthi = mybyhi(mythid) itlo = mybxlo(mythid) ithi = mybxhi(mythid) jmin = 1-oly jmax = sny+oly imin = 1-olx imax = snx+olx ip1 = 1 c-- Now, read the control vector. doglobalread = .false. ladinit = .false. if (optimcycle .ge. 0) then ilobcsw=ilnblnk( xx_obcsw_file ) write(fnameobcsw(1:80),'(2a,i10.10)') & xx_obcsw_file(1:ilobcsw), '.', optimcycle endif c-- Get the counters, flags, and the interpolation factor. call ctrl_get_gen_rec( I xx_obcswstartdate, xx_obcswperiod, O obcswfac, obcswfirst, obcswchanged, O obcswcount0,obcswcount1, I mytime, myiter, mythid ) do iobcs = 1,nobcs if ( obcswfirst ) then call active_read_yz( fnameobcsw, tmpfldyz, & (obcswcount0-1)*nobcs+iobcs, & doglobalread, ladinit, optimcycle, & mythid, xx_obcsw_dummy ) do bj = jtlo,jthi do bi = itlo,ithi #ifdef ALLOW_OBCS_CONTROL_MODES if (iobcs .gt. 2) then do j = jmin,jmax i = OB_Iw(j,bi,bj) IF ( i.EQ.OB_indexNone ) i = 1 cih Determine number of open vertical layers. nz = 0 do k = 1,Nr if (iobcs .eq. 3) then nz = nz + maskW(i+ip1,j,k,bi,bj) else nz = nz + maskS(i,j,k,bi,bj) endif end do cih Compute absolute velocities from the barotropic-baroclinic modes. do k = 1,Nr if (k.le.nz) then stmp = 0. do nk = 1,nz stmp = stmp + & modesv(k,nk,nz)*tmpfldyz(j,nk,bi,bj) end do tmpz(k,bi,bj) = stmp else tmpz(k,bi,bj) = 0. end if enddo do k = 1,Nr if (iobcs .eq. 3) then tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) & *recip_hFacW(i+ip1,j,k,bi,bj) else tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) & *recip_hFacS(i,j,k,bi,bj) endif end do enddo endif #endif do k = 1,nr do j = jmin,jmax xx_obcsw1(j,k,bi,bj,iobcs) = tmpfldyz (j,k,bi,bj) cgg & * maskyz (j,k,bi,bj) enddo enddo enddo enddo endif if ( (obcswfirst) .or. (obcswchanged)) then do bj = jtlo,jthi do bi = itlo,ithi do k = 1,nr do j = jmin,jmax xx_obcsw0(j,k,bi,bj,iobcs) = xx_obcsw1(j,k,bi,bj,iobcs) tmpfldyz (j,k,bi,bj) = 0. _d 0 enddo enddo enddo enddo call active_read_yz( fnameobcsw, tmpfldyz, & (obcswcount1-1)*nobcs+iobcs, & doglobalread, ladinit, optimcycle, & mythid, xx_obcsw_dummy ) do bj = jtlo,jthi do bi = itlo,ithi #ifdef ALLOW_OBCS_CONTROL_MODES if (iobcs .gt. 2) then do j = jmin,jmax i = OB_Iw(j,bi,bj) IF ( i.EQ.OB_indexNone ) i = 1 cih Determine number of open vertical layers. nz = 0 do k = 1,Nr if (iobcs .eq. 3) then nz = nz + maskW(i+ip1,j,k,bi,bj) else nz = nz + maskS(i,j,k,bi,bj) endif end do cih Compute absolute velocities from the barotropic-baroclinic modes. do k = 1,Nr if (k.le.nz) then stmp = 0. do nk = 1,nz stmp = stmp + & modesv(k,nk,nz)*tmpfldyz(j,nk,bi,bj) end do tmpz(k,bi,bj) = stmp else tmpz(k,bi,bj) = 0. end if enddo do k = 1,Nr if (iobcs .eq. 3) then tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) & *recip_hFacW(i+ip1,j,k,bi,bj) else tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) & *recip_hFacS(i,j,k,bi,bj) endif end do enddo endif #endif do k = 1,nr do j = jmin,jmax xx_obcsw1 (j,k,bi,bj,iobcs) = tmpfldyz (j,k,bi,bj) cgg & * maskyz (j,k,bi,bj) enddo enddo enddo enddo endif c-- Add control to model variable. do bj = jtlo, jthi do bi = itlo, ithi c-- Calculate mask for tracer cells (0 => land, 1 => water). do k = 1,nr do j = 1,sny i = OB_Iw(j,bi,bj) IF ( i.EQ.OB_indexNone ) i = 1 if (iobcs .EQ. 1) then OBWt(j,k,bi,bj) = OBWt (j,k,bi,bj) & + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) & + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) OBWt(j,k,bi,bj) = OBWt(j,k,bi,bj) & *maskW(i+ip1,j,k,bi,bj) else if (iobcs .EQ. 2) then OBWs(j,k,bi,bj) = OBWs (j,k,bi,bj) & + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) & + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) OBWs(j,k,bi,bj) = OBWs(j,k,bi,bj) & *maskW(i+ip1,j,k,bi,bj) else if (iobcs .EQ. 3) then OBWu(j,k,bi,bj) = OBWu (j,k,bi,bj) & + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) & + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) OBWu(j,k,bi,bj) = OBWu(j,k,bi,bj) & *maskW(i+ip1,j,k,bi,bj) else if (iobcs .EQ. 4) then OBWv(j,k,bi,bj) = OBWv (j,k,bi,bj) & + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) & + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) OBWv(j,k,bi,bj) = OBWv(j,k,bi,bj) & *maskS(i,j,k,bi,bj) endif enddo enddo enddo enddo C-- End over iobcs loop enddo #endif /* ALLOW_OBCSW_CONTROL */ return end