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C $Header: /u/gcmpack/MITgcm/pkg/exf/exf_set_gen.F,v 1.24 2008/01/25 16:02:56 mlosch Exp $ |
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C $Name: $ |
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|
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#include "EXF_OPTIONS.h" |
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|
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subroutine exf_set_gen( |
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& genfile, genstartdate, genperiod, |
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& exf_inscal_gen, genremove_intercept, genremove_slope, |
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& genfld, gen0, gen1, genmask, |
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#ifdef USE_EXF_INTERPOLATION |
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& gen_lon0, gen_lon_inc, gen_lat0, gen_lat_inc, |
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& gen_nlon, gen_nlat, gen_xout, gen_yout, interp_method, |
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#endif |
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& mytime, myiter, mythid ) |
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|
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c ================================================================== |
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c SUBROUTINE exf_set_gen |
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c ================================================================== |
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c |
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c o set external forcing gen |
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c |
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c started: Ralf.Giering@FastOpt.de 25-Mai-2000 |
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c changed: heimbach@mit.edu 10-Jan-2002 |
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c 20-Dec-2002: mods for pkg/seaice, menemenlis@jpl.nasa.gov |
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c heimbach@mit.edu: totally re-organized exf_set_... |
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c replaced all routines by one generic routine |
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c 5-Aug-2003: added USE_EXF_INTERPOLATION for arbitrary |
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c input grid capability |
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c 11-Dec-2006 added time-mean and monthly-mean climatology options |
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c genperiod=0 means input file is one time-constant field |
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c genperiod=-12 means input file contains 12 monthly means |
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|
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c ================================================================== |
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c SUBROUTINE exf_set_gen |
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c ================================================================== |
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|
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implicit none |
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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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|
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#include "EXF_PARAM.h" |
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#include "EXF_CONSTANTS.h" |
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|
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c == routine arguments == |
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|
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_RL genstartdate, genperiod |
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_RL exf_inscal_gen |
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_RL genremove_intercept, genremove_slope |
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_RL genfld(1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL gen0 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL gen1 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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character*1 genmask |
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character*(128) genfile |
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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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#ifdef USE_EXF_INTERPOLATION |
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c gen_lon_0 ,gen_lat_0 :: longitude and latitude of SouthWest |
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c corner of global input grid |
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c gen_nlon, gen_nlat :: input x-grid and y-grid size |
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c gen_lon_inc :: scalar x-grid increment |
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c gen_lat_inc :: vector y-grid increments |
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c gen_xout, gen_yout :: coordinates for output grid |
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_RL gen_lon0, gen_lon_inc |
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_RL gen_lat0, gen_lat_inc(MAX_LAT_INC) |
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INTEGER gen_nlon, gen_nlat |
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_RS gen_xout (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS gen_yout (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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integer interp_method |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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c == local variables == |
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|
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logical first, changed |
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integer count0, count1 |
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integer year0, year1 |
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integer bi, bj, i, j, il |
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_RL fac |
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character*(128) genfile0, genfile1 |
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|
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c == external == |
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|
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integer ilnblnk |
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external ilnblnk |
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|
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c == end of interface == |
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|
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if ( genfile .NE. ' ' .and. genperiod .ne. 0 ) then |
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|
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cph( |
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cph-exf-print if (genfile .EQ. hfluxfile) year0 = 3000 |
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cph) |
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|
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if ( genperiod .eq. -12 ) then |
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c genperiod=-12 means input file contains 12 monthly means |
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c record numbers are assumed 1 to 12 corresponding to |
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c Jan. through Dec. |
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call cal_GetMonthsRec( |
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O fac, first, changed, |
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O count0, count1, |
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I mytime, myiter, mythid |
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& ) |
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|
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elseif ( genperiod .lt. 0 ) then |
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print *, 'genperiod is out of range' |
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STOP 'ABNORMAL END: S/R EXF_SET_GEN' |
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|
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else |
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c get record numbers and interpolation factor for gen |
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call exf_GetFFieldRec( |
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I genstartdate, genperiod |
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I , useExfYearlyFields |
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O , fac, first, changed |
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O , count0, count1, year0, year1 |
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I , mytime, myiter, mythid |
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& ) |
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|
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endif |
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|
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if ( first ) then |
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call exf_GetYearlyFieldName( |
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I useExfYearlyFields, twoDigitYear, genperiod, year0, |
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I genfile, |
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O genfile0, |
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I mytime, myiter, mythid ) |
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|
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#ifdef USE_EXF_INTERPOLATION |
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call exf_interp( genfile0, exf_iprec |
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& , gen1, count0, gen_xout, gen_yout |
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& , gen_lon0,gen_lon_inc |
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& , gen_lat0,gen_lat_inc |
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& , gen_nlon,gen_nlat,interp_method,mythid |
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& ) |
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#else |
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_BARRIER |
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call mdsreadfield( genfile0, exf_iprec, exf_yftype, 1 |
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& , gen1, count0, mythid |
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& ) |
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_BARRIER |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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if (exf_yftype .eq. 'RL') then |
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call exf_filter_rl( gen1, genmask, mythid ) |
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else |
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call exf_filter_rs( gen1, genmask, mythid ) |
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end if |
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endif |
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|
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if (( first ) .or. ( changed )) then |
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call exf_SwapFFields( gen0, gen1, mythid ) |
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|
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call exf_GetYearlyFieldName( |
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I useExfYearlyFields, twoDigitYear, genperiod, year1, |
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I genfile, |
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O genfile1, |
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I mytime, myiter, mythid ) |
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|
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#ifdef USE_EXF_INTERPOLATION |
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call exf_interp( genfile1, exf_iprec |
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& , gen1, count1, gen_xout, gen_yout |
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& , gen_lon0,gen_lon_inc |
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& , gen_lat0,gen_lat_inc |
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& , gen_nlon,gen_nlat,interp_method,mythid |
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& ) |
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#else |
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_BARRIER |
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call mdsreadfield( genfile1, exf_iprec, exf_yftype, 1 |
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& , gen1, count1, mythid |
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& ) |
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_BARRIER |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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if (exf_yftype .eq. 'RL') then |
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call exf_filter_rl( gen1, genmask, mythid ) |
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else |
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call exf_filter_rs( gen1, genmask, mythid ) |
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end if |
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endif |
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|
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c Loop over tiles. |
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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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c Interpolate linearly onto the time. |
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genfld(i,j,bi,bj) = exf_inscal_gen * ( |
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& fac * gen0(i,j,bi,bj) + |
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& (exf_one - fac) * gen1(i,j,bi,bj) ) |
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genfld(i,j,bi,bj) = |
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& genfld(i,j,bi,bj) - |
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& exf_inscal_gen * ( genremove_intercept + |
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& genremove_slope*(mytime-starttime) ) |
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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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endif |
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|
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RETURN |
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END |
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|
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C+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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C+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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|
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subroutine exf_init_gen ( |
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& genfile, genperiod, exf_inscal_gen, genmask, |
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& genconst, genfld, gen0, gen1, |
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#ifdef USE_EXF_INTERPOLATION |
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& gen_lon0, gen_lon_inc, gen_lat0, gen_lat_inc, |
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& gen_nlon, gen_nlat, gen_xout, gen_yout, interp_method, |
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#endif |
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& mythid ) |
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|
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|
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c ================================================================== |
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c SUBROUTINE exf_init_gen |
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c ================================================================== |
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c |
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c o |
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c |
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c started: Ralf.Giering@FastOpt.de 25-Mai-2000 |
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c changed: heimbach@mit.edu 10-Jan-2002 |
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c heimbach@mit.edu: totally re-organized exf_set_... |
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c replaced all routines by one generic routine |
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c |
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c ================================================================== |
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c SUBROUTINE exf_init_gen |
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c ================================================================== |
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|
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implicit none |
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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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|
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#include "EXF_PARAM.h" |
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|
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c == routine arguments == |
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|
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_RL genperiod, exf_inscal_gen, genconst |
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_RL genfld(1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL gen0 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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_RL gen1 (1-olx:snx+olx,1-oly:sny+oly,nsx,nsy) |
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character*1 genmask |
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character*(128) genfile |
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integer mythid |
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|
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#ifdef USE_EXF_INTERPOLATION |
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c gen_lon_0 ,gen_lat_0 :: longitude and latitude of SouthWest |
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c corner of global input grid |
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c gen_nlon, gen_nlat :: input x-grid and y-grid size |
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c gen_lon_inc :: scalar x-grid increment |
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c gen_lat_inc :: vector y-grid increments |
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c gen_xout, gen_yout :: coordinates for output grid |
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_RL gen_lon0, gen_lon_inc |
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_RL gen_lat0, gen_lat_inc(MAX_LAT_INC) |
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INTEGER gen_nlon, gen_nlat |
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_RS gen_xout (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS gen_yout (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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integer interp_method |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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c == local variables == |
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|
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integer bi, bj, i, j, count |
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|
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c == end of interface == |
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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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do j = 1-oly, sny+oly |
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do i = 1-olx, snx+olx |
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genfld(i,j,bi,bj) = genconst |
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gen0(i,j,bi,bj) = genconst |
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gen1(i,j,bi,bj) = genconst |
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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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if ( genfile .NE. ' ' .and. genperiod .eq. 0. ) then |
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count = 1 |
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|
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#ifdef USE_EXF_INTERPOLATION |
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call exf_interp( genfile, exf_iprec |
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& , genfld, count, gen_xout, gen_yout |
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& , gen_lon0,gen_lon_inc |
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& , gen_lat0,gen_lat_inc |
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& , gen_nlon,gen_nlat,interp_method,mythid |
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& ) |
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#else |
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_BARRIER |
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call mdsreadfield( genfile, exf_iprec, exf_yftype, 1 |
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& , genfld, count, mythid |
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& ) |
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_BARRIER |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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if (exf_yftype .eq. 'RL') then |
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call exf_filter_rl( genfld, genmask, mythid ) |
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else |
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call exf_filter_rs( genfld, genmask, mythid ) |
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end if |
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|
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c Loop over tiles and scale genfld |
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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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genfld(i,j,bi,bj) = |
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& exf_inscal_gen * genfld(i,j,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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|
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endif |
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|
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RETURN |
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END |
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