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C $Header: /u/gcmpack/MITgcm/pkg/ctrl/ctrl_getobcss.F,v 1.7 2007/10/09 00:00:00 jmc Exp $ |
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C $Name: $ |
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|
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#include "CTRL_CPPOPTIONS.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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|
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subroutine ctrl_getobcss( |
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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_getobcss |
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c ================================================================== |
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c |
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c o Get southern 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 new flags: gebbie@mit.edu, 25 Jan 2003. |
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c |
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c ================================================================== |
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c SUBROUTINE ctrl_getobcss |
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c ================================================================== |
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|
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implicit none |
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|
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#ifdef ALLOW_OBCSS_CONTROL |
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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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#include "GRID.h" |
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#include "OBCS.h" |
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|
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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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|
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c == routine arguments == |
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|
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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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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 ilobcss |
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integer iobcs |
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|
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_RL dummy |
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_RL obcssfac |
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logical obcssfirst |
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logical obcsschanged |
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integer obcsscount0 |
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integer obcsscount1 |
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integer jp1 |
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|
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cgg _RL maskxz (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) fnameobcss |
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|
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cgg( Variables for splitting barotropic/baroclinic vels. |
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_RL vbaro |
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_RL vtop |
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cgg) |
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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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jmin = 1-oly |
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jmax = sny+oly |
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imin = 1-olx |
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imax = snx+olx |
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jp1 = 1 |
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|
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cgg( Initialize variables for balancing volume flux. |
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vbaro = 0.d0 |
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vtop = 0.d0 |
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cgg) |
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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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ilobcss=ilnblnk( xx_obcss_file ) |
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write(fnameobcss(1:80),'(2a,i10.10)') |
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& xx_obcss_file(1:ilobcss), '.', 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_obcssstartdate, xx_obcssperiod, |
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O obcssfac, obcssfirst, obcsschanged, |
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O obcsscount0,obcsscount1, |
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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 ( obcssfirst ) then |
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call active_read_xz( fnameobcss, tmpfldxz, |
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& (obcsscount0-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcss_dummy ) |
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|
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#ifdef ALLOW_CTRL_OBCS_BALANCE |
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|
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if ( optimcycle .gt. 0) then |
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if (iobcs .eq. 3) then |
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cgg Special attention is needed for the normal velocity. |
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cgg For the north, this is the v velocity, iobcs = 4. |
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cgg This is done on a columnwise basis here. |
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do bj = jtlo,jthi |
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do bi = itlo, ithi |
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do i = imin,imax |
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j = OB_Js(I,bi,bj) |
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|
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cgg The barotropic velocity is stored in the level 1. |
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vbaro = tmpfldxz(i,1,bi,bj) |
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tmpfldxz(i,1,bi,bj) = 0.d0 |
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vtop = 0.d0 |
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|
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do k = 1,Nr |
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cgg If cells are not full, this should be modified with hFac. |
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cgg |
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cgg The xx field (tmpfldxz) does not contain the velocity at the |
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cgg surface level. This velocity is not independent; it must |
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cgg exactly balance the volume flux, since we are dealing with |
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cgg the baroclinic velocity structure.. |
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vtop = tmpfldxz(i,k,bi,bj)* |
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& maskS(i,j+jp1,k,bi,bj) * delR(k) + vtop |
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cgg Add the barotropic velocity component. |
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if (maskS(i,j+jp1,k,bi,bj) .ne. 0.) then |
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tmpfldxz(i,k,bi,bj) = tmpfldxz(i,k,bi,bj)+ vbaro |
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endif |
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enddo |
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cgg Compute the baroclinic velocity at level 1. Should balance flux. |
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tmpfldxz(i,1,bi,bj) = tmpfldxz(i,1,bi,bj) |
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& - vtop / delR(1) |
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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 (iobcs .eq. 4) then |
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cgg Special attention is needed for the normal velocity. |
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cgg For the north, this is the v velocity, iobcs = 4. |
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cgg This is done on a columnwise basis here. |
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do bj = jtlo,jthi |
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do bi = itlo, ithi |
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do i = imin,imax |
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j = OB_Js(I,bi,bj) |
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|
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cgg The barotropic velocity is stored in the level 1. |
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vbaro = tmpfldxz(i,1,bi,bj) |
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tmpfldxz(i,1,bi,bj) = 0.d0 |
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vtop = 0.d0 |
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|
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do k = 1,Nr |
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cgg If cells are not full, this should be modified with hFac. |
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cgg |
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cgg The xx field (tmpfldxz) does not contain the velocity at the |
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cgg surface level. This velocity is not independent; it must |
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cgg exactly balance the volume flux, since we are dealing with |
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cgg the baroclinic velocity structure.. |
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vtop = tmpfldxz(i,k,bi,bj)* |
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& maskW(i,j,k,bi,bj) * delR(k) + vtop |
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cgg Add the barotropic velocity component. |
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if (maskW(i,j,k,bi,bj) .ne. 0.) then |
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tmpfldxz(i,k,bi,bj) = tmpfldxz(i,k,bi,bj)+ vbaro |
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endif |
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enddo |
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cgg Compute the baroclinic velocity at level 1. Should balance flux. |
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tmpfldxz(i,1,bi,bj) = tmpfldxz(i,1,bi,bj) |
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& - vtop / delR(1) |
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enddo |
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enddo |
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enddo |
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endif |
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endif |
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|
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#endif /* ALLOW_CTRL_OBCS_BALANCE */ |
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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_obcss1(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 ( (obcssfirst) .or. (obcsschanged)) 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_obcss0(i,k,bi,bj,iobcs) = xx_obcss1(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( fnameobcss, tmpfldxz, |
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& (obcsscount1-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcss_dummy ) |
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|
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#ifdef ALLOW_CTRL_OBCS_BALANCE |
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|
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if ( optimcycle .gt. 0) then |
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if (iobcs .eq. 3) then |
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cgg Special attention is needed for the normal velocity. |
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cgg For the north, this is the v velocity, iobcs = 4. |
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cgg This is done on a columnwise basis here. |
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do bj = jtlo,jthi |
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do bi = itlo, ithi |
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do i = imin,imax |
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j = OB_Js(I,bi,bj) |
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|
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cgg The barotropic velocity is stored in the level 1. |
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vbaro = tmpfldxz(i,1,bi,bj) |
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tmpfldxz(i,1,bi,bj) = 0.d0 |
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vtop = 0.d0 |
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|
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do k = 1,Nr |
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cgg If cells are not full, this should be modified with hFac. |
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cgg |
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cgg The xx field (tmpfldxz) does not contain the velocity at the |
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cgg surface level. This velocity is not independent; it must |
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cgg exactly balance the volume flux, since we are dealing with |
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cgg the baroclinic velocity structure.. |
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vtop = tmpfldxz(i,k,bi,bj)* |
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& maskS(i,j+jp1,k,bi,bj) * delR(k) + vtop |
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cgg Add the barotropic velocity component. |
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if (maskS(i,j+jp1,k,bi,bj) .ne. 0.) then |
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tmpfldxz(i,k,bi,bj) = tmpfldxz(i,k,bi,bj)+ vbaro |
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endif |
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enddo |
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cgg Compute the baroclinic velocity at level 1. Should balance flux. |
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tmpfldxz(i,1,bi,bj) = tmpfldxz(i,1,bi,bj) |
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& - vtop / delR(1) |
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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 (iobcs .eq. 4) then |
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cgg Special attention is needed for the normal velocity. |
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cgg For the north, this is the v velocity, iobcs = 4. |
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cgg This is done on a columnwise basis here. |
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do bj = jtlo,jthi |
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do bi = itlo, ithi |
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do i = imin,imax |
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j = OB_Js(I,bi,bj) |
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|
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cgg The barotropic velocity is stored in the level 1. |
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vbaro = tmpfldxz(i,1,bi,bj) |
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tmpfldxz(i,1,bi,bj) = 0.d0 |
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vtop = 0.d0 |
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|
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do k = 1,Nr |
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cgg If cells are not full, this should be modified with hFac. |
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cgg |
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cgg The xx field (tmpfldxz) does not contain the velocity at the |
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cgg surface level. This velocity is not independent; it must |
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cgg exactly balance the volume flux, since we are dealing with |
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cgg the baroclinic velocity structure.. |
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vtop = tmpfldxz(i,k,bi,bj)* |
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& maskW(i,j,k,bi,bj) * delR(k) + vtop |
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cgg Add the barotropic velocity component. |
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if (maskW(i,j,k,bi,bj) .ne. 0.) then |
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tmpfldxz(i,k,bi,bj) = tmpfldxz(i,k,bi,bj)+ vbaro |
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endif |
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enddo |
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cgg Compute the baroclinic velocity at level 1. Should balance flux. |
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tmpfldxz(i,1,bi,bj) = tmpfldxz(i,1,bi,bj) |
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& - vtop / delR(1) |
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enddo |
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enddo |
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enddo |
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endif |
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endif |
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|
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#endif /* ALLOW_CTRL_OBCS_BALANCE */ |
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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_obcss1 (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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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_Js(I,bi,bj) |
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if (iobcs .EQ. 1) then |
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OBSt(i,k,bi,bj) = OBSt (i,k,bi,bj) |
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& + obcssfac *xx_obcss0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcssfac)*xx_obcss1(i,k,bi,bj,iobcs) |
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OBSt(i,k,bi,bj) = OBSt(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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OBSs(i,k,bi,bj) = OBSs (i,k,bi,bj) |
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& + obcssfac *xx_obcss0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcssfac)*xx_obcss1(i,k,bi,bj,iobcs) |
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OBSs(i,k,bi,bj) = OBSs(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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OBSu(i,k,bi,bj) = OBSu (i,k,bi,bj) |
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& + obcssfac *xx_obcss0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcssfac)*xx_obcss1(i,k,bi,bj,iobcs) |
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OBSu(i,k,bi,bj) = OBSu(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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OBSv(i,k,bi,bj) = OBSv (i,k,bi,bj) |
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& + obcssfac *xx_obcss0(i,k,bi,bj,iobcs) |
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& + (1. _d 0 - obcssfac)*xx_obcss1(i,k,bi,bj,iobcs) |
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OBSv(i,k,bi,bj) = OBSv(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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#else /* ALLOW_OBCSS_CONTROL undefined */ |
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|
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c == routine arguments == |
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|
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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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c-- CPP flag ALLOW_OBCSS_CONTROL undefined. |
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|
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#endif /* ALLOW_OBCSS_CONTROL */ |
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|
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end |
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