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dimitri |
1.11 |
C $Header: /u/gcmpack/MITgcm/pkg/exf/exf_set_uv.F,v 1.10 2006/03/02 02:53:23 heimbach Exp $ |
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dimitri |
1.1 |
C $Name: $ |
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#include "EXF_OPTIONS.h" |
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subroutine exf_set_uv( |
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& uvecfile, uvecstartdate, uvecperiod, |
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heimbach |
1.5 |
& uvecstartdate1, uvecstartdate2, |
| 9 |
dimitri |
1.1 |
& exf_inscal_uvec, uvec, uvec0, uvec1, uvecmask, |
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& uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
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heimbach |
1.10 |
& uvec_nlon, uvec_nlat, |
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& uvec_remove_intercept, uvec_remove_slope, |
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dimitri |
1.1 |
& vvecfile, vvecstartdate, vvecperiod, |
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heimbach |
1.5 |
& vvecstartdate1, vvecstartdate2, |
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dimitri |
1.1 |
& exf_inscal_vvec, vvec, vvec0, vvec1, vvecmask, |
| 16 |
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& vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
| 17 |
dimitri |
1.3 |
& vvec_nlon, vvec_nlat, |
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heimbach |
1.10 |
& vvec_remove_intercept, vvec_remove_slope, |
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dimitri |
1.1 |
& mycurrenttime, mycurrentiter, mythid ) |
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c ================================================================== |
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c SUBROUTINE exf_set_uv |
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c ================================================================== |
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c |
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c o Read-in, interpolate, and rotate wind or wind stress vectors |
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c from a spherical-polar input grid to an arbitrary output grid. |
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c |
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c menemenlis@jpl.nasa.gov, 8-Dec-2003 |
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c |
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c ================================================================== |
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c SUBROUTINE exf_set_uv |
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c ================================================================== |
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implicit none |
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c == global variables == |
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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 "DYNVARS.h" |
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#include "GRID.h" |
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#include "exf_param.h" |
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#include "exf_fields.h" |
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#include "exf_constants.h" |
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#ifdef ALLOW_AUTODIFF |
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# include "ctrl.h" |
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# include "ctrl_dummy.h" |
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#endif |
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c == routine arguments == |
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c *vec_lon_0, :: longitude and latitude of SouthWest |
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c *vec_lat_0 corner of global input grid for *vec |
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c *vec_nlon, *vec_nlat :: input x-grid and y-grid size for *vec |
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c *vec_lon_inc :: scalar x-grid increment for *vec |
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c *vec_lat_inc :: vector y-grid increments for *vec |
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heimbach |
1.5 |
character*(128) uvecfile, uvecfile0, uvecfile1 |
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dimitri |
1.1 |
_RL uvecstartdate, uvecperiod |
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jmc |
1.6 |
integer uvecstartdate1, uvecstartdate2 |
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dimitri |
1.1 |
_RL exf_inscal_uvec |
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heimbach |
1.10 |
_RL uvec_remove_intercept, uvec_remove_slope |
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dimitri |
1.1 |
_RL uvec (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL uvec0 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL uvec1 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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character*1 uvecmask |
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_RL uvec_lon0, uvec_lon_inc |
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_RL uvec_lat0, uvec_lat_inc(MAX_LAT_INC) |
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INTEGER uvec_nlon, uvec_nlat |
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heimbach |
1.5 |
character*(128) vvecfile, vvecfile0, vvecfile1 |
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dimitri |
1.1 |
_RL vvecstartdate, vvecperiod |
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jmc |
1.6 |
integer vvecstartdate1, vvecstartdate2 |
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dimitri |
1.1 |
_RL exf_inscal_vvec |
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heimbach |
1.10 |
_RL vvec_remove_intercept, vvec_remove_slope |
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dimitri |
1.1 |
_RL vvec (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL vvec0 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL vvec1 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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character*1 vvecmask |
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_RL vvec_lon0, vvec_lon_inc |
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_RL vvec_lat0, vvec_lat_inc(MAX_LAT_INC) |
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INTEGER vvec_nlon, vvec_nlat |
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_RL mycurrenttime |
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integer mycurrentiter |
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integer mythid |
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heimbach |
1.4 |
#ifdef USE_EXF_INTERPOLATION |
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dimitri |
1.1 |
c == local variables == |
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logical first, changed |
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_RL fac, x1, x2, x3, x4, y1, y2, y3, y4, dx, dy |
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_RL tmp_u (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL tmp_v (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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integer count0, count1 |
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integer i, j, bi, bj |
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heimbach |
1.5 |
integer il, interp_method |
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dimitri |
1.1 |
parameter(interp_method=2) |
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heimbach |
1.5 |
integer year0, year1 |
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c == external == |
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integer ilnblnk |
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external ilnblnk |
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dimitri |
1.1 |
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c == end of interface == |
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dimitri |
1.11 |
IF ( usingCurvilinearGrid ) THEN |
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dimitri |
1.1 |
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if ( uvecfile .NE. ' ' .and. vvecfile .NE. ' ' ) then |
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c get record numbers and interpolation factor |
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call exf_GetFFieldRec( |
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I uvecstartdate, uvecperiod |
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heimbach |
1.5 |
I , uvecstartdate1, uvecstartdate2 |
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I , useExfYearlyFields |
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dimitri |
1.1 |
O , fac, first, changed |
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heimbach |
1.5 |
O , count0, count1, year0, year1 |
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dimitri |
1.1 |
I , mycurrenttime, mycurrentiter, mythid |
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& ) |
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if ( first ) then |
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heimbach |
1.5 |
if (useExfYearlyFields) then |
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dimitri |
1.8 |
C Complete filenames with YR or _YEAR extension |
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heimbach |
1.5 |
il = ilnblnk( uvecfile ) |
| 127 |
dimitri |
1.8 |
if (twoDigitYear) then |
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if (year0.ge.2000) then |
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write(uvecfile0(1:128),'(a,i2.2)') |
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& uvecfile(1:il),year0-2000 |
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else |
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write(uvecfile0(1:128),'(a,i2.2)') |
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& uvecfile(1:il),year0-1900 |
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endif |
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else |
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write(uvecfile0(1:128),'(2a,i4.4)') |
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& uvecfile(1:il),'_',year0 |
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endif |
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heimbach |
1.5 |
il = ilnblnk( vvecfile ) |
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dimitri |
1.8 |
if (twoDigitYear) then |
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if (year0.ge.2000) then |
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write(vvecfile0(1:128),'(a,i2.2)') |
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& vvecfile(1:il),year0-2000 |
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else |
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write(vvecfile0(1:128),'(a,i2.2)') |
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& vvecfile(1:il),year0-1900 |
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endif |
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else |
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write(vvecfile0(1:128),'(2a,i4.4)') |
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& vvecfile(1:il),'_',year0 |
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endif |
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heimbach |
1.5 |
else |
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uvecfile0 = uvecfile |
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vvecfile0 = vvecfile |
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endif |
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dimitri |
1.1 |
c scalar interpolation to (xC,yC) locations |
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heimbach |
1.5 |
call exf_interp( uvecfile0, exf_iprec |
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dimitri |
1.1 |
& , tmp_u, count0, xC, yC |
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& , uvec_lon0,uvec_lon_inc |
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& , uvec_lat0,uvec_lat_inc |
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& , uvec_nlon,uvec_nlat,interp_method,mythid |
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& ) |
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heimbach |
1.5 |
call exf_interp( vvecfile0, exf_iprec |
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dimitri |
1.1 |
& , tmp_v, count0, xC, yC |
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& , vvec_lon0,vvec_lon_inc |
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& , vvec_lat0,vvec_lat_inc |
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& , vvec_nlon,vvec_nlat,interp_method,mythid |
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& ) |
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c vector rotation |
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do bj = mybylo(mythid),mybyhi(mythid) |
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do bi = mybxlo(mythid),mybxhi(mythid) |
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do j = 1,sny |
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do i = 1,snx |
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x1=xG(i,j,bi,bj) |
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x2=xG(i+1,j,bi,bj) |
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x3=xG(i,j+1,bi,bj) |
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x4=xG(i+1,j+1,bi,bj) |
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if ((x2-x1).gt.180) x2=x2-360 |
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if ((x1-x2).gt.180) x2=x2+360 |
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if ((x3-x1).gt.180) x3=x3-360 |
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if ((x1-x3).gt.180) x3=x3+360 |
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if ((x4-x1).gt.180) x4=x4-360 |
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if ((x1-x4).gt.180) x4=x4+360 |
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y1=yG(i,j,bi,bj) |
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y2=yG(i+1,j,bi,bj) |
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y3=yG(i,j+1,bi,bj) |
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y4=yG(i+1,j+1,bi,bj) |
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dx=0.5*(x3+x4-x1-x2) |
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dx=dx*cos(deg2rad*yC(i,j,bi,bj)) |
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dy=0.5*(y3+y4-y1-y2) |
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vvec1(i,j,bi,bj)=(tmp_u(i,j,bi,bj)*dx+ |
| 192 |
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& tmp_v(i,j,bi,bj)*dy)/sqrt(dx*dx+dy*dy) |
| 193 |
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dx=0.5*(x2+x4-x1-x3) |
| 194 |
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dx=dx*cos(deg2rad*yC(i,j,bi,bj)) |
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dy=0.5*(y2+y4-y1-y3) |
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uvec1(i,j,bi,bj)=(tmp_u(i,j,bi,bj)*dx+ |
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& tmp_v(i,j,bi,bj)*dy)/sqrt(dx*dx+dy*dy) |
| 198 |
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enddo |
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enddo |
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enddo |
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enddo |
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c apply mask |
| 203 |
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if (exf_yftype .eq. 'RL') then |
| 204 |
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call exf_filter_rl( uvec1, uvecmask, mythid ) |
| 205 |
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call exf_filter_rl( vvec1, vvecmask, mythid ) |
| 206 |
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else |
| 207 |
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call exf_filter_rs( uvec1, uvecmask, mythid ) |
| 208 |
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call exf_filter_rs( vvec1, vvecmask, mythid ) |
| 209 |
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end if |
| 210 |
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endif |
| 211 |
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| 212 |
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if (( first ) .or. ( changed )) then |
| 213 |
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call exf_SwapFFields( uvec0, uvec1, mythid ) |
| 214 |
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call exf_SwapFFields( vvec0, vvec1, mythid ) |
| 215 |
heimbach |
1.5 |
if (useExfYearlyFields) then |
| 216 |
dimitri |
1.8 |
C Complete filenames with YR or _YEAR extension |
| 217 |
heimbach |
1.5 |
il = ilnblnk( uvecfile ) |
| 218 |
dimitri |
1.8 |
if (twoDigitYear) then |
| 219 |
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if (year1.ge.2000) then |
| 220 |
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write(uvecfile1(1:128),'(a,i2.2)') |
| 221 |
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& uvecfile(1:il),year1-2000 |
| 222 |
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else |
| 223 |
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write(uvecfile1(1:128),'(a,i2.2)') |
| 224 |
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& uvecfile(1:il),year1-1900 |
| 225 |
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endif |
| 226 |
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else |
| 227 |
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write(uvecfile1(1:128),'(2a,i4.4)') |
| 228 |
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& uvecfile(1:il),'_',year1 |
| 229 |
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endif |
| 230 |
heimbach |
1.5 |
il = ilnblnk( vvecfile ) |
| 231 |
dimitri |
1.8 |
if (twoDigitYear) then |
| 232 |
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if (year1.ge.2000) then |
| 233 |
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write(vvecfile1(1:128),'(a,i2.2)') |
| 234 |
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& vvecfile(1:il),year1-2000 |
| 235 |
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else |
| 236 |
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write(vvecfile1(1:128),'(a,i2.2)') |
| 237 |
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& vvecfile(1:il),year1-1900 |
| 238 |
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endif |
| 239 |
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else |
| 240 |
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write(vvecfile1(1:128),'(2a,i4.4)') |
| 241 |
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& vvecfile(1:il),'_',year1 |
| 242 |
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endif |
| 243 |
heimbach |
1.5 |
else |
| 244 |
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uvecfile1 = uvecfile |
| 245 |
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vvecfile1 = vvecfile |
| 246 |
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endif |
| 247 |
dimitri |
1.1 |
c scalar interpolation to (xC,yC) locations |
| 248 |
heimbach |
1.5 |
call exf_interp( uvecfile1, exf_iprec |
| 249 |
dimitri |
1.1 |
& , tmp_u, count1, xC, yC |
| 250 |
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& , uvec_lon0,uvec_lon_inc |
| 251 |
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& , uvec_lat0,uvec_lat_inc |
| 252 |
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& , uvec_nlon,uvec_nlat,interp_method,mythid |
| 253 |
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& ) |
| 254 |
heimbach |
1.5 |
call exf_interp( vvecfile1, exf_iprec |
| 255 |
dimitri |
1.1 |
& , tmp_v, count1, xC, yC |
| 256 |
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& , vvec_lon0,vvec_lon_inc |
| 257 |
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& , vvec_lat0,vvec_lat_inc |
| 258 |
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& , vvec_nlon,vvec_nlat,interp_method,mythid |
| 259 |
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& ) |
| 260 |
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c vector rotation |
| 261 |
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do bj = mybylo(mythid),mybyhi(mythid) |
| 262 |
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do bi = mybxlo(mythid),mybxhi(mythid) |
| 263 |
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do j = 1,sny |
| 264 |
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do i = 1,snx |
| 265 |
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x1=xG(i,j,bi,bj) |
| 266 |
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x2=xG(i+1,j,bi,bj) |
| 267 |
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x3=xG(i,j+1,bi,bj) |
| 268 |
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x4=xG(i+1,j+1,bi,bj) |
| 269 |
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if ((x2-x1).gt.180) x2=x2-360 |
| 270 |
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if ((x1-x2).gt.180) x2=x2+360 |
| 271 |
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if ((x3-x1).gt.180) x3=x3-360 |
| 272 |
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if ((x1-x3).gt.180) x3=x3+360 |
| 273 |
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if ((x4-x1).gt.180) x4=x4-360 |
| 274 |
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if ((x1-x4).gt.180) x4=x4+360 |
| 275 |
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y1=yG(i,j,bi,bj) |
| 276 |
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y2=yG(i+1,j,bi,bj) |
| 277 |
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y3=yG(i,j+1,bi,bj) |
| 278 |
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y4=yG(i+1,j+1,bi,bj) |
| 279 |
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dx=0.5*(x3+x4-x1-x2) |
| 280 |
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dx=dx*cos(deg2rad*yC(i,j,bi,bj)) |
| 281 |
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dy=0.5*(y3+y4-y1-y2) |
| 282 |
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vvec1(i,j,bi,bj)=(tmp_u(i,j,bi,bj)*dx+ |
| 283 |
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& tmp_v(i,j,bi,bj)*dy)/sqrt(dx*dx+dy*dy) |
| 284 |
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dx=0.5*(x2+x4-x1-x3) |
| 285 |
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dx=dx*cos(deg2rad*yC(i,j,bi,bj)) |
| 286 |
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dy=0.5*(y2+y4-y1-y3) |
| 287 |
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uvec1(i,j,bi,bj)=(tmp_u(i,j,bi,bj)*dx+ |
| 288 |
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& tmp_v(i,j,bi,bj)*dy)/sqrt(dx*dx+dy*dy) |
| 289 |
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enddo |
| 290 |
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enddo |
| 291 |
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enddo |
| 292 |
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enddo |
| 293 |
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c apply mask |
| 294 |
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if (exf_yftype .eq. 'RL') then |
| 295 |
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call exf_filter_rl( uvec1, uvecmask, mythid ) |
| 296 |
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call exf_filter_rl( vvec1, vvecmask, mythid ) |
| 297 |
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else |
| 298 |
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call exf_filter_rs( uvec1, uvecmask, mythid ) |
| 299 |
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call exf_filter_rs( vvec1, vvecmask, mythid ) |
| 300 |
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end if |
| 301 |
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endif |
| 302 |
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| 303 |
|
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c Interpolate linearly onto the current time. |
| 304 |
|
|
do bj = mybylo(mythid),mybyhi(mythid) |
| 305 |
|
|
do bi = mybxlo(mythid),mybxhi(mythid) |
| 306 |
|
|
do j = 1,sny |
| 307 |
|
|
do i = 1,snx |
| 308 |
|
|
uvec(i,j,bi,bj) = exf_inscal_uvec * ( |
| 309 |
|
|
& fac * uvec0(i,j,bi,bj) + |
| 310 |
|
|
& (exf_one - fac) * uvec1(i,j,bi,bj) ) |
| 311 |
|
|
vvec(i,j,bi,bj) = exf_inscal_vvec * ( |
| 312 |
|
|
& fac * vvec0(i,j,bi,bj) + |
| 313 |
|
|
& (exf_one - fac) * vvec1(i,j,bi,bj) ) |
| 314 |
|
|
enddo |
| 315 |
|
|
enddo |
| 316 |
|
|
enddo |
| 317 |
|
|
enddo |
| 318 |
|
|
|
| 319 |
|
|
endif |
| 320 |
|
|
|
| 321 |
|
|
ELSE |
| 322 |
|
|
c IF ( .NOT. useCubedSphereExchange ) |
| 323 |
|
|
|
| 324 |
|
|
call exf_set_gen( |
| 325 |
|
|
& uvecfile, uvecstartdate, uvecperiod, |
| 326 |
heimbach |
1.5 |
I uvecstartdate1, uvecstartdate2, |
| 327 |
dimitri |
1.1 |
& exf_inscal_uvec, |
| 328 |
heimbach |
1.10 |
& uvec_remove_intercept, uvec_remove_slope, |
| 329 |
dimitri |
1.1 |
& uvec, uvec0, uvec1, uvecmask, |
| 330 |
|
|
& uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
| 331 |
dimitri |
1.7 |
& uvec_nlon, uvec_nlat, xC, yC, interp_method, |
| 332 |
dimitri |
1.1 |
& mycurrenttime, mycurrentiter, mythid ) |
| 333 |
|
|
call exf_set_gen( |
| 334 |
|
|
& vvecfile, vvecstartdate, vvecperiod, |
| 335 |
heimbach |
1.5 |
I vvecstartdate1, vvecstartdate2, |
| 336 |
dimitri |
1.1 |
& exf_inscal_vvec, |
| 337 |
heimbach |
1.10 |
& vvec_remove_intercept, vvec_remove_slope, |
| 338 |
dimitri |
1.1 |
& vvec, vvec0, vvec1, vvecmask, |
| 339 |
|
|
& vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
| 340 |
dimitri |
1.7 |
& vvec_nlon, vvec_nlat, xC, yC, interp_method, |
| 341 |
dimitri |
1.1 |
& mycurrenttime, mycurrentiter, mythid ) |
| 342 |
|
|
|
| 343 |
|
|
ENDIF |
| 344 |
|
|
|
| 345 |
heimbach |
1.4 |
#endif /* USE_EXF_INTERPOLATION */ |
| 346 |
|
|
|
| 347 |
dimitri |
1.1 |
return |
| 348 |
|
|
end |
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