| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/fizhi/fizhi_init_vars.F,v 1.8 2004/08/12 15:21:22 molod Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
#include "FIZHI_OPTIONS.h" |
| 5 |
subroutine fizhi_init_vars (myThid) |
| 6 |
c----------------------------------------------------------------------- |
| 7 |
c Routine to initialise the fizhi state. |
| 8 |
c |
| 9 |
c Input: myThid - Process number calling this routine |
| 10 |
c |
| 11 |
c Notes: |
| 12 |
c 1) For a Cold Start - |
| 13 |
c This routine takes the initial condition on the dynamics grid |
| 14 |
c and interpolates to the physics grid to initialize the state |
| 15 |
c variables that are on both grids. It initializes the variables |
| 16 |
c of the turbulence scheme to 0., and the land state from a model |
| 17 |
c climatology. |
| 18 |
c 2) For a Restart, read the fizhi pickup file |
| 19 |
c 3) The velocity component physics fields are on an A-Grid |
| 20 |
c |
| 21 |
c Calls: dyn2phys (x4) |
| 22 |
c----------------------------------------------------------------------- |
| 23 |
implicit none |
| 24 |
#include "SIZE.h" |
| 25 |
#include "fizhi_SIZE.h" |
| 26 |
#include "fizhi_land_SIZE.h" |
| 27 |
#include "GRID.h" |
| 28 |
#include "DYNVARS.h" |
| 29 |
#include "gridalt_mapping.h" |
| 30 |
#include "fizhi_coms.h" |
| 31 |
#include "fizhi_land_coms.h" |
| 32 |
#include "fizhi_earth_coms.h" |
| 33 |
#include "EEPARAMS.h" |
| 34 |
#include "SURFACE.h" |
| 35 |
#include "PARAMS.h" |
| 36 |
|
| 37 |
integer myThid |
| 38 |
|
| 39 |
c pe on dynamics and physics grid refers to bottom edge |
| 40 |
_RL pephy(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nrphys+1,nSx,nSy) |
| 41 |
_RL pedyn(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr+1,nSx,nSy) |
| 42 |
_RL windphy(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nrphys,nSx,nSy) |
| 43 |
_RL udyntemp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 44 |
_RL vdyntemp(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 45 |
_RL tempphy(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nrphys,nSx,nSy) |
| 46 |
|
| 47 |
integer i, j, L, bi, bj, Lbotij |
| 48 |
integer im1, im2, jm1, jm2, idim1, idim2, jdim1, jdim2 |
| 49 |
|
| 50 |
im1 = 1-OLx |
| 51 |
im2 = sNx+OLx |
| 52 |
jm1 = 1-OLy |
| 53 |
jm2 = sNy+OLy |
| 54 |
idim1 = 1 |
| 55 |
idim2 = sNx |
| 56 |
jdim1 = 1 |
| 57 |
jdim2 = sNy |
| 58 |
|
| 59 |
IF ( startTime.EQ.0. .AND. nIter0.EQ.0 ) THEN |
| 60 |
print *,' In fizhi_init_vars: Cold start ' |
| 61 |
|
| 62 |
do bj = myByLo(myThid), myByHi(myThid) |
| 63 |
do bi = myBxLo(myThid), myBxHi(myThid) |
| 64 |
|
| 65 |
C Build pressures on dynamics grid |
| 66 |
do j = 1,sNy |
| 67 |
do i = 1,sNx |
| 68 |
do L = 1,Nr |
| 69 |
pedyn(i,j,L,bi,bj) = 0. |
| 70 |
enddo |
| 71 |
enddo |
| 72 |
enddo |
| 73 |
do j = 1,sNy |
| 74 |
do i = 1,sNx |
| 75 |
Lbotij = ksurfC(i,j,bi,bj) |
| 76 |
if(Lbotij.ne.0.) |
| 77 |
. pedyn(i,j,Lbotij,bi,bj) = Ro_surf(i,j,bi,bj) + etaH(i,j,bi,bj) |
| 78 |
enddo |
| 79 |
enddo |
| 80 |
do j = 1,sNy |
| 81 |
do i = 1,sNx |
| 82 |
Lbotij = ksurfC(i,j,bi,bj) |
| 83 |
do L = Lbotij+1,Nr+1 |
| 84 |
pedyn(i,j,L,bi,bj) = pedyn(i,j,L-1,bi,bj) - |
| 85 |
. drF(L-1)*hfacC(i,j,L-1,bi,bj) |
| 86 |
enddo |
| 87 |
c Do not use a zero field as the top edge pressure for interpolation |
| 88 |
if(pedyn(i,j,Nr+1,bi,bj).lt.1.e-5) |
| 89 |
. pedyn(i,j,Nr+1,bi,bj) = 1.e-5 |
| 90 |
enddo |
| 91 |
enddo |
| 92 |
C Build pressures on physics grid |
| 93 |
do j = 1,sNy |
| 94 |
do i = 1,sNx |
| 95 |
pephy(i,j,1,bi,bj)=Ro_surf(i,j,bi,bj) + etaH(i,j,bi,bj) |
| 96 |
do L = 2,Nrphys+1 |
| 97 |
pephy(i,j,L,bi,bj)=pephy(i,j,L-1,bi,bj)-dpphys0(i,j,L-1,bi,bj) |
| 98 |
enddo |
| 99 |
c Do not use a zero field as the top edge pressure for interpolation |
| 100 |
if(pephy(i,j,Nrphys+1,bi,bj).lt.1.e-5) |
| 101 |
. pephy(i,j,Nrphys+1,bi,bj) = 1.e-5 |
| 102 |
enddo |
| 103 |
enddo |
| 104 |
c |
| 105 |
c Create an initial wind magnitude field on the physics grid - |
| 106 |
c Use a log wind law with z0=1cm, u*=1 cm/sec, |
| 107 |
c do units and get u = .025*ln(dP*10), with dP in pa. |
| 108 |
do L = 1,Nrphys |
| 109 |
do j = 1,sNy |
| 110 |
do i = 1,sNx |
| 111 |
windphy(i,j,L,bi,bj) = 0.025 * |
| 112 |
. log((pephy(i,j,1,bi,bj)-pephy(i,j,L+1,bi,bj))*10.) |
| 113 |
enddo |
| 114 |
enddo |
| 115 |
enddo |
| 116 |
|
| 117 |
enddo |
| 118 |
enddo |
| 119 |
|
| 120 |
c Create initial fields on phys. grid - Move Dynamics u and v to A-Grid |
| 121 |
call CtoA(myThid,uvel,vvel,maskW,maskS,im1,im2,jm1,jm2,Nr, |
| 122 |
. Nsx,Nsy,1,sNx,1,sNy,udyntemp,vdyntemp) |
| 123 |
|
| 124 |
do bj = myByLo(myThid), myByHi(myThid) |
| 125 |
do bi = myBxLo(myThid), myBxHi(myThid) |
| 126 |
|
| 127 |
c Create initial fields on phys. grid - interpolate from dyn. grid |
| 128 |
call dyn2phys(udyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy, |
| 129 |
. 1,sNx,1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,1,tempphy) |
| 130 |
c Note: Interpolation gives bottom-up arrays (level 1 is bottom), |
| 131 |
c Physics works top-down. so -> need to flip arrays |
| 132 |
do L = 1,Nrphys |
| 133 |
do j = 1,sNy |
| 134 |
do i = 1,sNx |
| 135 |
uphy(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
| 136 |
enddo |
| 137 |
enddo |
| 138 |
enddo |
| 139 |
call dyn2phys(vdyntemp,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy, |
| 140 |
. 1,sNx,1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,1,tempphy) |
| 141 |
do L = 1,Nrphys |
| 142 |
do j = 1,sNy |
| 143 |
do i = 1,sNx |
| 144 |
vphy(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
| 145 |
enddo |
| 146 |
enddo |
| 147 |
enddo |
| 148 |
call dyn2phys(theta,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy, |
| 149 |
. 1,sNx,1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,0,tempphy) |
| 150 |
do L = 1,Nrphys |
| 151 |
do j = 1,sNy |
| 152 |
do i = 1,sNx |
| 153 |
thphy(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
| 154 |
enddo |
| 155 |
enddo |
| 156 |
enddo |
| 157 |
|
| 158 |
call dyn2phys(salt,pedyn,im1,im2,jm1,jm2,Nr,Nsx,Nsy, |
| 159 |
. 1,sNx,1,sNy,bi,bj,windphy,pephy,ksurfC,Nrphys,nlperdyn,0,tempphy) |
| 160 |
do L = 1,Nrphys |
| 161 |
do j = 1,sNy |
| 162 |
do i = 1,sNx |
| 163 |
sphy(i,j,Nrphys+1-L,bi,bj) = tempphy(i,j,L,bi,bj) |
| 164 |
enddo |
| 165 |
enddo |
| 166 |
enddo |
| 167 |
|
| 168 |
c Now initialize tke, xlmt, khmt, xxmt, yymt, ctmt, zetamt, |
| 169 |
c Now initialize land state too - tcanopy, etc... |
| 170 |
do i = 1,nchp |
| 171 |
ctmt(i,bi,bj) = 0. |
| 172 |
xxmt(i,bi,bj) = 0. |
| 173 |
yymt(i,bi,bj) = 0. |
| 174 |
zetamt(i,bi,bj) = 0. |
| 175 |
enddo |
| 176 |
do L = 1,Nrphys |
| 177 |
do i = 1,nchp |
| 178 |
tke(i,L,bi,bj) = 0. |
| 179 |
xlmt(i,L,bi,bj) = 0. |
| 180 |
khmt(i,L,bi,bj) = 0. |
| 181 |
enddo |
| 182 |
enddo |
| 183 |
c Now initialize land state too - tcanopy, etc... SET FOR NOW, |
| 184 |
c READ CLIM FOR REAL |
| 185 |
do i = 1,nchp |
| 186 |
tcanopy(i,bi,bj) = 283. |
| 187 |
tdeep(i,bi,bj) = 282.5 |
| 188 |
ecanopy(i,bi,bj) = 2.e-2 |
| 189 |
swetshal(i,bi,bj) = 0.6 |
| 190 |
swetroot(i,bi,bj) = 0.5 |
| 191 |
swetdeep(i,bi,bj) = 0.5 |
| 192 |
capac(i,bi,bj) = 0. |
| 193 |
snodep(i,bi,bj) = 0. |
| 194 |
enddo |
| 195 |
|
| 196 |
enddo |
| 197 |
enddo |
| 198 |
|
| 199 |
ELSE |
| 200 |
print *,' In fizhi_init_vars: Read from restart ' |
| 201 |
|
| 202 |
C-- Read fizhi package state variables from pickup file |
| 203 |
|
| 204 |
call fizhi_read_pickup( nIter0, myThid ) |
| 205 |
CALL FIZHI_READ_VEGTILES( nIter0, 'D', myThid ) |
| 206 |
|
| 207 |
ENDIF |
| 208 |
|
| 209 |
return |
| 210 |
end |
Parent Directory
| 
Revision Log
| 
Revision Graph