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C $Header: /u/gcmpack/MITgcm/pkg/fizhi/step_fizhi_corr.F,v 1.6 2004/06/07 18:11:37 molod Exp $ |
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C $Name: $ |
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|
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subroutine step_fizhi_corr (myTime, myIter, myThid) |
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c---------------------------------------------------------------------- |
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c Subroutine step_fizhi_corr - 'Wrapper' routine to advance |
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c the physics state and make the new value. |
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c At this point, increment with the "correction term" |
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c which includes the dynamics tendency and the integral |
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c constraint to enforce agreement with the dynamics state |
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c Also: Set up "bi, bj loop" and some timers and clocks here. |
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c |
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c Call:phys2dyn (4) (interpolate physics state to dynamics grid |
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c for use in the correction terms) |
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c AtoC (convert physics state on dynamics grid to C-Grid) |
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c CtoA (convert correction term on dynamics grid to A-Grid) |
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c dyn2phys (4) (interpolate A-Grid correction term to physics grid) |
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c step_physics (advance physics state by correction term) |
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c----------------------------------------------------------------------- |
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implicit none |
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#include "CPP_OPTIONS.h" |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "fizhi_SIZE.h" |
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#include "fizhi_land_SIZE.h" |
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#include "DYNVARS.h" |
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#include "fizhi_coms.h" |
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#include "gridalt_mapping.h" |
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#include "EEPARAMS.h" |
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#include "SURFACE.h" |
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|
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integer myTime, myIter, myThid |
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|
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c pe on dynamics and physics grid refers to bottom edge |
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_RL pephy(1-OLx:sNx+Olx,1-Oly:sNy+Oly,Nrphys+1,nSx,nSy) |
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_RL pedyn(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr+1,nSx,nSy) |
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_RL windphy(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL udyntemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
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_RL vdyntemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
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_RL thdyntemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
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_RL sdyntemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL uphytemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL vphytemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL thphytemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL sphytemp(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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_RL tempphy(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nrphys,nSx,nSy) |
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|
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integer i, j, L, Lbotij, bi, bj |
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integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2 |
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_RL dt |
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|
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im1 = 1-OLx |
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im2 = sNx+OLx |
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jm1 = 1-OLy |
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jm2 = sNy+OLy |
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idim1 = 1 |
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idim2 = sNx |
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jdim1 = 1 |
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jdim2 = sNy |
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dt = 1. |
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|
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do bj = myByLo(myThid), myByHi(myThid) |
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do bi = myBxLo(myThid), myBxHi(myThid) |
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|
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C Construct Pressures on physics and dynamics grids |
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do j = 1,sNy |
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do i = 1,sNx |
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do L = 1,Nr |
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pedyn(i,j,L,bi,bj) = 0. |
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enddo |
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enddo |
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enddo |
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do j = 1,sNy |
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do i = 1,sNx |
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Lbotij = ksurfC(i,j,bi,bj) |
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if(Lbotij.ne.0.) |
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. pedyn(i,j,Lbotij,bi,bj) = Ro_surf(i,j,bi,bj) + etaH(i,j,bi,bj) |
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enddo |
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enddo |
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do j = 1,sNy |
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do i = 1,sNx |
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Lbotij = ksurfC(i,j,bi,bj) |
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do L = Lbotij+1,Nr+1 |
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pedyn(i,j,L,bi,bj) = pedyn(i,j,L-1,bi,bj) - |
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. drF(L-1)*hfacC(i,j,L-1,bi,bj) |
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enddo |
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c Do not use a zero field as the top edge pressure for interpolation |
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if(pedyn(i,j,Nr+1,bi,bj).lt.1.e-5) |
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. pedyn(i,j,Nr+1,bi,bj) = 1.e-5 |
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enddo |
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enddo |
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|
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do j = 1,sNy |
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do i = 1,sNx |
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pephy(i,j,1,bi,bj)=Ro_surf(i,j,bi,bj) + etaH(i,j,bi,bj) |
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do L = 2,Nrphys+1 |
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pephy(i,j,L,bi,bj)=pephy(i,j,L-1,bi,bj)-dpphys(i,j,L-1,bi,bj) |
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enddo |
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c Do not use a zero field as the top edge pressure for interpolation |
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if(pephy(i,j,Nrphys+1,bi,bj).lt.1.e-5) |
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. pephy(i,j,Nrphys+1,bi,bj) = 1.e-5 |
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enddo |
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enddo |
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c |
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c Create a wind magnitude field on the physics grid - |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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windphy(i,j,L,bi,bj) = sqrt(uphy(i,j,L,bi,bj)*uphy(i,j,L,bi,bj) |
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. + vphy(i,j,L,bi,bj)*vphy(i,j,L,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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enddo |
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|
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CALL TIMER_START('PHYS2DYN [STEP_FIZHI_CORR]',mythid) |
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do bj = myByLo(myThid), myByHi(myThid) |
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do bi = myBxLo(myThid), myBxHi(myThid) |
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|
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c Compute correction term (new dyn state-phys state to dyn) on physics grid: |
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c First: interp physics state to dynamics grid |
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C Note: physics field levels are numbered top down - need bottom up |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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tempphy(i,j,Nrphys+1-L,bi,bj) = uphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call phys2dyn(tempphy,pephy,im1,im2,jm1,jm2,Nrphys,Nsx,Nsy, |
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. 1,sNx,1,sNy,bi,bj,pedyn,ksurfC,Nr,nlperdyn,udyntemp) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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tempphy(i,j,Nrphys+1-L,bi,bj) = vphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call phys2dyn(tempphy,pephy,im1,im2,jm1,jm2,Nrphys,Nsx,Nsy, |
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. 1,sNx,1,sNy,bi,bj,pedyn,ksurfC,Nr,nlperdyn,vdyntemp) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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tempphy(i,j,Nrphys+1-L,bi,bj) = thphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call phys2dyn(tempphy,pephy,im1,im2,jm1,jm2,Nrphys,Nsx,Nsy, |
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. 1,sNx,1,sNy,bi,bj,pedyn,ksurfC,Nr,nlperdyn,thdyntemp) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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tempphy(i,j,Nrphys+1-L,bi,bj) = sphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call phys2dyn(tempphy,pephy,im1,im2,jm1,jm2,Nrphys,Nsx,Nsy, |
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. 1,sNx,1,sNy,bi,bj,pedyn,ksurfC,Nr,nlperdyn,sdyntemp) |
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|
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enddo |
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enddo |
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CALL TIMER_STOP('PHYS2DYN [STEP_FIZHI_CORR]',mythid) |
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|
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c Second: Convert physics state on dynamics grid to C-Grid |
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|
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CALL TIMER_START('ATOC [STEP_FIZHI_CORR]',mythid) |
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call AtoC(myThid,udyntemp,vdyntemp,maskC,im1,im2,jm1,jm2,Nr, |
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. Nsx,Nsy,1,sNx,1,sNy,udyntemp,vdyntemp) |
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CALL TIMER_STOP('ATOC [STEP_FIZHI_CORR]',mythid) |
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|
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c Third: Subtract Phys state on dyn. grid from new dynamics state |
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do bj = myByLo(myThid), myByHi(myThid) |
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do bi = myBxLo(myThid), myBxHi(myThid) |
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|
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do L = 1,Nr |
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do j = jdim1,jdim2 |
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do i = idim1,idim2 |
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udyntemp(i,j,L,bi,bj)=uvel(i,j,L,bi,bj)-udyntemp(i,j,L,bi,bj) |
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vdyntemp(i,j,L,bi,bj)=vvel(i,j,L,bi,bj)-vdyntemp(i,j,L,bi,bj) |
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thdyntemp(i,j,L,bi,bj)=theta(i,j,L,bi,bj)-thdyntemp(i,j,L,bi,bj) |
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sdyntemp(i,j,L,bi,bj)=salt(i,j,L,bi,bj)-sdyntemp(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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|
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enddo |
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enddo |
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|
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c Fourth: Convert correction terms to A-Grid |
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CALL TIMER_START('CTOA [STEP_FIZHI_CORR]',mythid) |
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call CtoA(myThid,udyntemp,vdyntemp,maskW,maskS,im1,im2,jm1,jm2, |
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. Nr,Nsx,Nsy,1,sNx,1,sNy,udyntemp,vdyntemp) |
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CALL TIMER_STOP('CTOA [STEP_FIZHI_CORR]',mythid) |
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|
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c Fifth: Interpolate correction terms to physics grid |
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CALL TIMER_START('DYN2PHYS [STEP_FIZHI_CORR]',mythid) |
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do bj = myByLo(myThid), myByHi(myThid) |
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do bi = myBxLo(myThid), myBxHi(myThid) |
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|
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call dyn2phys(udyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy,1,sNx, |
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. 1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,1,tempphy) |
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C Note: correction term is now bottom up - needed in top down arrays |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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uphytemp(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call dyn2phys(vdyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy,1,sNx, |
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. 1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,1,tempphy) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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vphytemp(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call dyn2phys(thdyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy,1,sNx, |
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. 1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,0,tempphy) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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thphytemp(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
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enddo |
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enddo |
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enddo |
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call dyn2phys(sdyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy,1,sNx, |
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. 1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,0,tempphy) |
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do L = 1,Nrphys |
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do j = 1,sNy |
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do i = 1,sNx |
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sphytemp(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,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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enddo |
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CALL TIMER_STOP('DYN2PHYS [STEP_FIZHI_CORR]',mythid) |
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|
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c Last: Increment physics state by the correction term |
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do bj = myByLo(myThid), myByHi(myThid) |
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do bi = myBxLo(myThid), myBxHi(myThid) |
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call step_physics(uphy,vphy,thphy,sphy,dt,im1,im2,jm1,jm2, |
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. Nrphys,Nsx,Nsy,1,sNx,1,sNy,bi,bj, |
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. uphytemp,vphytemp,thphytemp,sphytemp) |
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|
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enddo |
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enddo |
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|
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return |
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end |
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