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C $Header: /u/gcmpack/MITgcm/pkg/ctrl/ctrl_getobcsw.F,v 1.9 2011/01/19 08:42:06 mlosch 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_getobcsw( |
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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_getobcsw |
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c ================================================================== |
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c |
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c o Get western 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_getobcsw |
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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_OBCSW_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 ilobcsw |
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integer iobcs |
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integer ip1 |
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|
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_RL dummy |
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_RL obcswfac |
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logical obcswfirst |
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logical obcswchanged |
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integer obcswcount0 |
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integer obcswcount1 |
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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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|
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cgg _RL maskyz (1-oly:sny+oly,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) fnameobcsw |
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|
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cgg( Variables for splitting barotropic/baroclinic vels. |
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_RL ubaro |
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_RL utop |
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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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ip1 = 1 |
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|
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cgg( Initialize variables for balancing volume flux. |
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ubaro = 0.d0 |
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utop = 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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ilobcsw=ilnblnk( xx_obcsw_file ) |
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write(fnameobcsw(1:80),'(2a,i10.10)') |
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& xx_obcsw_file(1:ilobcsw), '.', 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_obcswstartdate, xx_obcswperiod, |
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O obcswfac, obcswfirst, obcswchanged, |
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O obcswcount0,obcswcount1, |
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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 ( obcswfirst ) then |
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call active_read_yz( fnameobcsw, tmpfldyz, |
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& (obcswcount0-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcsw_dummy ) |
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|
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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 j = jmin,jmax |
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cih If open boundary. |
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if ( OB_Iw(j,bi,bj) .ne. 0. ) then |
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i = OB_Iw(J,bi,bj) |
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#ifdef ALLOW_OBCS_CONTROL_MODES |
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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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nz = nz + maskW(i+ip1,j,k,bi,bj) |
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end do |
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cih Compute absolute velocities from the barotropic-baroclinic modes. |
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#ifdef ALLOW_CTRL_OBCS_BALANCE |
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CMM not sure if ALLOW_OBCS_CONTROL_MODES and ALLOW_CTRL_OBCS_BALANCE are |
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c compatible - to ensure volume conservation can just set barotropic |
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c mode amplitude to 0 |
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c however this means no inflow at every horizontal location.... |
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do k = 1,nr |
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tmpfldyz(k,1,bi,bj)= 0. |
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end do |
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#endif |
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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)*tmpfldyz(j,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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tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacW(i+ip1,j,k,bi,bj) |
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end do |
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#elif defined (ALLOW_CTRL_OBCS_BALANCE) |
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cgg The barotropic velocity is stored in the level 1. |
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ubaro = tmpfldyz(j,1,bi,bj) |
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tmpfldyz(j,1,bi,bj) = 0.d0 |
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utop = 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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utop = tmpfldyz(j,k,bi,bj)* |
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& maskW(i+ip1,j,k,bi,bj) * delR(k) + utop |
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cgg Add the barotropic velocity component. |
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if (maskW(i+ip1,j,k,bi,bj) .ne. 0.) then |
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tmpfldyz(j,k,bi,bj) = tmpfldyz(j,k,bi,bj)+ ubaro |
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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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tmpfldyz(j,1,bi,bj) = tmpfldyz(j,1,bi,bj) |
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& - utop / delR(1) |
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#endif |
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cih End open boundary. |
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end if |
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enddo |
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enddo |
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enddo |
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endif |
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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 j = jmin,jmax |
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cih If open boundary. |
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if ( OB_Iw(j,bi,bj) .ne. 0. ) then |
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i = OB_Iw(J,bi,bj) |
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#ifdef ALLOW_OBCS_CONTROL_MODES |
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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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nz = nz + maskS(i,j,k,bi,bj) |
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end do |
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cih Compute absolute velocities from the barotropic-baroclinic modes. |
| 224 |
#ifdef ALLOW_CTRL_OBCS_BALANCE |
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CMM not sure if ALLOW_OBCS_CONTROL_MODES and ALLOW_CTRL_OBCS_BALANCE are |
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c compatible - to ensure volume conservation can just set barotropic |
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c mode amplitude to 0 |
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c however this means no inflow at every horizontal location.... |
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do k = 1,nr |
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tmpfldyz(k,1,bi,bj)= 0. |
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end do |
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#endif |
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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)*tmpfldyz(j,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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tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) |
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& *recip_hFacS(i,j,k,bi,bj) |
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end do |
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#elif defined (ALLOW_CTRL_OBCS_BALANCE) |
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cgg The barotropic velocity is stored in the level 1. |
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ubaro = tmpfldyz(j,1,bi,bj) |
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tmpfldyz(j,1,bi,bj) = 0.d0 |
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utop = 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 |
| 260 |
cgg exactly balance the volume flux, since we are dealing with |
| 261 |
cgg the baroclinic velocity structure.. |
| 262 |
utop = tmpfldyz(j,k,bi,bj)* |
| 263 |
& maskS(i,j,k,bi,bj) * delR(k) + utop |
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cgg Add the barotropic velocity component. |
| 265 |
if (maskS(i,j,k,bi,bj) .ne. 0.) then |
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tmpfldyz(j,k,bi,bj) = tmpfldyz(j,k,bi,bj)+ ubaro |
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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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tmpfldyz(j,1,bi,bj) = tmpfldyz(j,1,bi,bj) |
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& - utop / delR(1) |
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#endif |
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cih End if iobcs = 4. |
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end if |
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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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|
| 281 |
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 j = jmin,jmax |
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xx_obcsw1(j,k,bi,bj,iobcs) = tmpfldyz (j,k,bi,bj) |
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cgg & * maskyz (j,k,bi,bj) |
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enddo |
| 288 |
enddo |
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enddo |
| 290 |
enddo |
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endif |
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|
| 293 |
if ( (obcswfirst) .or. (obcswchanged)) then |
| 294 |
|
| 295 |
do bj = jtlo,jthi |
| 296 |
do bi = itlo,ithi |
| 297 |
do k = 1,nr |
| 298 |
do j = jmin,jmax |
| 299 |
xx_obcsw0(j,k,bi,bj,iobcs) = xx_obcsw1(j,k,bi,bj,iobcs) |
| 300 |
tmpfldyz (j,k,bi,bj) = 0. _d 0 |
| 301 |
enddo |
| 302 |
enddo |
| 303 |
enddo |
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enddo |
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|
| 306 |
call active_read_yz( fnameobcsw, tmpfldyz, |
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& (obcswcount1-1)*nobcs+iobcs, |
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& doglobalread, ladinit, optimcycle, |
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& mythid, xx_obcsw_dummy ) |
| 310 |
|
| 311 |
if ( optimcycle .gt. 0) then |
| 312 |
if (iobcs .eq. 3) then |
| 313 |
cgg Special attention is needed for the normal velocity. |
| 314 |
cgg For the north, this is the v velocity, iobcs = 4. |
| 315 |
cgg This is done on a columnwise basis here. |
| 316 |
do bj = jtlo,jthi |
| 317 |
do bi = itlo, ithi |
| 318 |
do j = jmin,jmax |
| 319 |
cih If open boundary. |
| 320 |
if ( OB_Iw(j,bi,bj) .ne. 0. ) then |
| 321 |
i = OB_Iw(J,bi,bj) |
| 322 |
#ifdef ALLOW_OBCS_CONTROL_MODES |
| 323 |
cih Determine number of open vertical layers. |
| 324 |
nz = 0 |
| 325 |
do k = 1,Nr |
| 326 |
nz = nz + maskW(i+ip1,j,k,bi,bj) |
| 327 |
end do |
| 328 |
cih Compute absolute velocities from the barotropic-baroclinic modes. |
| 329 |
#ifdef ALLOW_CTRL_OBCS_BALANCE |
| 330 |
CMM not sure if ALLOW_OBCS_CONTROL_MODES and ALLOW_CTRL_OBCS_BALANCE are |
| 331 |
c compatible - to ensure volume conservation can just set barotropic |
| 332 |
c mode amplitude to 0 |
| 333 |
c however this means no inflow at every horizontal location.... |
| 334 |
do k = 1,nr |
| 335 |
tmpfldyz(k,1,bi,bj)= 0. |
| 336 |
end do |
| 337 |
#endif |
| 338 |
do k = 1,Nr |
| 339 |
if (k.le.nz) then |
| 340 |
stmp = 0. |
| 341 |
do nk = 1,nz |
| 342 |
stmp = stmp + |
| 343 |
& modesv(k,nk,nz)*tmpfldyz(j,nk,bi,bj) |
| 344 |
end do |
| 345 |
tmpz(k,bi,bj) = stmp |
| 346 |
else |
| 347 |
tmpz(k,bi,bj) = 0. |
| 348 |
end if |
| 349 |
end do |
| 350 |
do k = 1,Nr |
| 351 |
tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) |
| 352 |
& *recip_hFacW(i+ip1,j,k,bi,bj) |
| 353 |
end do |
| 354 |
#elif defined (ALLOW_CTRL_OBCS_BALANCE) |
| 355 |
cgg The barotropic velocity is stored in the level 1. |
| 356 |
ubaro = tmpfldyz(j,1,bi,bj) |
| 357 |
tmpfldyz(j,1,bi,bj) = 0.d0 |
| 358 |
utop = 0.d0 |
| 359 |
|
| 360 |
do k = 1,Nr |
| 361 |
cgg If cells are not full, this should be modified with hFac. |
| 362 |
cgg |
| 363 |
cgg The xx field (tmpfldxz) does not contain the velocity at the |
| 364 |
cgg surface level. This velocity is not independent; it must |
| 365 |
cgg exactly balance the volume flux, since we are dealing with |
| 366 |
cgg the baroclinic velocity structure.. |
| 367 |
utop = tmpfldyz(j,k,bi,bj)* |
| 368 |
& maskW(i+ip1,j,k,bi,bj) * delR(k) + utop |
| 369 |
cgg Add the barotropic velocity component. |
| 370 |
if (maskW(i+ip1,j,k,bi,bj) .ne. 0.) then |
| 371 |
tmpfldyz(j,k,bi,bj) = tmpfldyz(j,k,bi,bj)+ ubaro |
| 372 |
endif |
| 373 |
enddo |
| 374 |
cgg Compute the baroclinic velocity at level 1. Should balance flux. |
| 375 |
tmpfldyz(j,1,bi,bj) = tmpfldyz(j,1,bi,bj) |
| 376 |
& - utop / delR(1) |
| 377 |
#endif |
| 378 |
cih End open boundary. |
| 379 |
end if |
| 380 |
enddo |
| 381 |
enddo |
| 382 |
enddo |
| 383 |
endif |
| 384 |
if (iobcs .eq. 4) then |
| 385 |
cgg Special attention is needed for the normal velocity. |
| 386 |
cgg For the north, this is the v velocity, iobcs = 4. |
| 387 |
cgg This is done on a columnwise basis here. |
| 388 |
do bj = jtlo,jthi |
| 389 |
do bi = itlo, ithi |
| 390 |
do j = jmin,jmax |
| 391 |
cih If open boundary. |
| 392 |
if ( OB_Iw(j,bi,bj) .ne. 0. ) then |
| 393 |
i = OB_Iw(J,bi,bj) |
| 394 |
#ifdef ALLOW_OBCS_CONTROL_MODES |
| 395 |
cih Determine number of open vertical layers. |
| 396 |
nz = 0 |
| 397 |
do k = 1,Nr |
| 398 |
nz = nz + maskS(i,j,k,bi,bj) |
| 399 |
end do |
| 400 |
cih Compute absolute velocities from the barotropic-baroclinic modes. |
| 401 |
#ifdef ALLOW_CTRL_OBCS_BALANCE |
| 402 |
CMM not sure if ALLOW_OBCS_CONTROL_MODES and ALLOW_CTRL_OBCS_BALANCE are |
| 403 |
c compatible - to ensure volume conservation can just set barotropic |
| 404 |
c mode amplitude to 0 |
| 405 |
c however this means no inflow at every horizontal location.... |
| 406 |
do k = 1,nr |
| 407 |
tmpfldyz(k,1,bi,bj)= 0. |
| 408 |
end do |
| 409 |
#endif |
| 410 |
do k = 1,Nr |
| 411 |
if (k.le.nz) then |
| 412 |
stmp = 0. |
| 413 |
do nk = 1,nz |
| 414 |
stmp = stmp + |
| 415 |
& modesv(k,nk,nz)*tmpfldyz(j,nk,bi,bj) |
| 416 |
end do |
| 417 |
tmpz(k,bi,bj) = stmp |
| 418 |
else |
| 419 |
tmpz(k,bi,bj) = 0. |
| 420 |
end if |
| 421 |
end do |
| 422 |
do k = 1,Nr |
| 423 |
tmpfldyz(j,k,bi,bj) = tmpz(k,bi,bj) |
| 424 |
& *recip_hFacS(i,j,k,bi,bj) |
| 425 |
end do |
| 426 |
#elif defined (ALLOW_CTRL_OBCS_BALANCE) |
| 427 |
cgg The barotropic velocity is stored in the level 1. |
| 428 |
ubaro = tmpfldyz(j,1,bi,bj) |
| 429 |
tmpfldyz(j,1,bi,bj) = 0.d0 |
| 430 |
utop = 0.d0 |
| 431 |
|
| 432 |
do k = 1,Nr |
| 433 |
cgg If cells are not full, this should be modified with hFac. |
| 434 |
cgg |
| 435 |
cgg The xx field (tmpfldxz) does not contain the velocity at the |
| 436 |
cgg surface level. This velocity is not independent; it must |
| 437 |
cgg exactly balance the volume flux, since we are dealing with |
| 438 |
cgg the baroclinic velocity structure.. |
| 439 |
utop = tmpfldyz(j,k,bi,bj)* |
| 440 |
& maskS(i,j,k,bi,bj) * delR(k) + utop |
| 441 |
cgg Add the barotropic velocity component. |
| 442 |
if (maskS(i,j,k,bi,bj) .ne. 0.) then |
| 443 |
tmpfldyz(j,k,bi,bj) = tmpfldyz(j,k,bi,bj)+ ubaro |
| 444 |
endif |
| 445 |
enddo |
| 446 |
cgg Compute the baroclinic velocity at level 1. Should balance flux. |
| 447 |
tmpfldyz(j,1,bi,bj) = tmpfldyz(j,1,bi,bj) |
| 448 |
& - utop / delR(1) |
| 449 |
#endif |
| 450 |
cih End if iobcs = 4. |
| 451 |
end if |
| 452 |
enddo |
| 453 |
enddo |
| 454 |
enddo |
| 455 |
endif |
| 456 |
endif |
| 457 |
|
| 458 |
do bj = jtlo,jthi |
| 459 |
do bi = itlo,ithi |
| 460 |
do k = 1,nr |
| 461 |
do j = jmin,jmax |
| 462 |
xx_obcsw1 (j,k,bi,bj,iobcs) = tmpfldyz (j,k,bi,bj) |
| 463 |
cgg & * maskyz (j,k,bi,bj) |
| 464 |
enddo |
| 465 |
enddo |
| 466 |
enddo |
| 467 |
enddo |
| 468 |
endif |
| 469 |
|
| 470 |
c-- Add control to model variable. |
| 471 |
do bj = jtlo, jthi |
| 472 |
do bi = itlo, ithi |
| 473 |
c-- Calculate mask for tracer cells (0 => land, 1 => water). |
| 474 |
do k = 1,nr |
| 475 |
do j = 1,sny |
| 476 |
i = OB_Iw(j,bi,bj) |
| 477 |
if (iobcs .EQ. 1) then |
| 478 |
OBWt(j,k,bi,bj) = OBWt (j,k,bi,bj) |
| 479 |
& + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) |
| 480 |
& + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) |
| 481 |
OBWt(j,k,bi,bj) = OBWt(j,k,bi,bj) |
| 482 |
& *maskW(i+ip1,j,k,bi,bj) |
| 483 |
else if (iobcs .EQ. 2) then |
| 484 |
OBWs(j,k,bi,bj) = OBWs (j,k,bi,bj) |
| 485 |
& + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) |
| 486 |
& + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) |
| 487 |
OBWs(j,k,bi,bj) = OBWs(j,k,bi,bj) |
| 488 |
& *maskW(i+ip1,j,k,bi,bj) |
| 489 |
else if (iobcs .EQ. 3) then |
| 490 |
OBWu(j,k,bi,bj) = OBWu (j,k,bi,bj) |
| 491 |
& + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) |
| 492 |
& + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) |
| 493 |
OBWu(j,k,bi,bj) = OBWu(j,k,bi,bj) |
| 494 |
& *maskW(i+ip1,j,k,bi,bj) |
| 495 |
else if (iobcs .EQ. 4) then |
| 496 |
OBWv(j,k,bi,bj) = OBWv (j,k,bi,bj) |
| 497 |
& + obcswfac *xx_obcsw0(j,k,bi,bj,iobcs) |
| 498 |
& + (1. _d 0 - obcswfac)*xx_obcsw1(j,k,bi,bj,iobcs) |
| 499 |
OBWv(j,k,bi,bj) = OBWv(j,k,bi,bj) |
| 500 |
& *maskS(i,j,k,bi,bj) |
| 501 |
endif |
| 502 |
enddo |
| 503 |
enddo |
| 504 |
enddo |
| 505 |
enddo |
| 506 |
|
| 507 |
C-- End over iobcs loop |
| 508 |
enddo |
| 509 |
|
| 510 |
#else /* ALLOW_OBCSW_CONTROL undefined */ |
| 511 |
|
| 512 |
c == routine arguments == |
| 513 |
|
| 514 |
_RL mytime |
| 515 |
integer myiter |
| 516 |
integer mythid |
| 517 |
|
| 518 |
c-- CPP flag ALLOW_OBCSW_CONTROL undefined. |
| 519 |
|
| 520 |
#endif /* ALLOW_OBCSW_CONTROL */ |
| 521 |
|
| 522 |
end |
| 523 |
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