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C $Header: /u/gcmpack/MITgcm/pkg/exf/exf_set_uv.F,v 1.28 2014/06/07 17:52:18 jmc 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_UV( |
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I uvecfile, uvecstartdate, uvecperiod, |
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I exf_inscal_uvec, uvec_remove_intercept, uvec_remove_slope, |
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U uvec, uvec0, uvec1, uvecmask, |
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I vvecfile, vvecstartdate, vvecperiod, |
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I exf_inscal_vvec, vvec_remove_intercept, vvec_remove_slope, |
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U vvec, vvec0, vvec1, vvecmask, |
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#ifdef USE_EXF_INTERPOLATION |
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I uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
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I uvec_nlon, uvec_nlat, u_interp_method, |
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I vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
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I vvec_nlon, vvec_nlat, v_interp_method, uvInterp, |
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#endif /* USE_EXF_INTERPOLATION */ |
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I myTime, myIter, myThid ) |
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|
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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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|
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IMPLICIT NONE |
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|
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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 "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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|
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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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|
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CHARACTER*(128) uvecfile |
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_RL uvecstartdate, uvecperiod |
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_RL exf_inscal_uvec |
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_RL uvec_remove_intercept, uvec_remove_slope |
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_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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CHARACTER*(128) vvecfile |
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_RL vvecstartdate, vvecperiod |
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_RL exf_inscal_vvec |
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_RL vvec_remove_intercept, vvec_remove_slope |
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_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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#ifdef USE_EXF_INTERPOLATION |
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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, u_interp_method |
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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, v_interp_method |
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LOGICAL uvInterp |
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#endif /* USE_EXF_INTERPOLATION */ |
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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 == Functions == |
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INTEGER ILNBLNK |
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EXTERNAL ILNBLNK |
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|
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C == local variables == |
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#ifdef USE_EXF_INTERPOLATION |
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C msgBuf :: Informational/error message buffer |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CHARACTER*(128) uvecfile0, uvecfile1 |
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CHARACTER*(128) vvecfile0, vvecfile1 |
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LOGICAL first, changed |
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_RL fac |
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#ifdef EXF_USE_OLD_VEC_ROTATION |
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_RL x1, x2, x3, x4, y1, y2, y3, y4, dx, dy |
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#endif |
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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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INTEGER year0, year1 |
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#endif /* USE_EXF_INTERPOLATION */ |
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|
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C == end of interface == |
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|
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#ifdef USE_EXF_INTERPOLATION |
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IF ( u_interp_method.GE.1 .AND. v_interp_method.GE.1 .AND. |
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& uvecfile.NE.' ' .AND. vvecfile.NE.' ' .AND. |
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& (usingCurvilinearGrid .OR. rotateGrid .OR. uvInterp) ) THEN |
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|
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IF ( uvecperiod .EQ. -12. ) THEN |
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C- genperiod=-12 means input file contains 12 monthly means |
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C records, corresponding to Jan. (rec=1) through Dec. (rec=12) |
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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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ELSEIF ( uvecperiod .LE. 0. ) THEN |
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j = ILNBLNK(uvecfile) |
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WRITE(msgBuf,'(A,1PE16.8,2A)') |
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& 'EXF_SET_UV: Invalid uvecperiod=', uvecperiod, |
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& ' for file: ', uvecfile(1:j) |
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CALL PRINT_ERROR( msgBuf, myThid ) |
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STOP 'ABNORMAL END: S/R EXF_SET_UV' |
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ELSE |
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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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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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ENDIF |
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IF ( exf_debugLev.GE.debLevD ) THEN |
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_BEGIN_MASTER( myThid ) |
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i = ILNBLNK(uvecfile) |
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j = ILNBLNK(vvecfile) |
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WRITE(msgBuf,'(5A)') ' EXF_SET_UV: ', |
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& 'processing: ', uvecfile(1:i), ' & ', vvecfile(1:j) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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WRITE(msgBuf,'(2A,I10,2I7)') ' EXF_SET_UV: ', |
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& ' myIter, count0, count1:', myIter, count0, count1 |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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WRITE(msgBuf,'(2A,2(L2,2X),E16.9)') ' EXF_SET_UV: ', |
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& ' first, changed, fac: ', first, changed, fac |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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_END_MASTER( myThid ) |
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ENDIF |
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|
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IF ( first ) THEN |
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C-- Load and interpolate a new reccord (= 1rst one of this run) |
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|
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CALL exf_GetYearlyFieldName( |
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I useExfYearlyFields, twoDigitYear, uvecperiod, year0, |
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I uvecfile, |
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O uvecfile0, |
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I myTime, myIter, myThid ) |
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CALL exf_GetYearlyFieldName( |
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I useExfYearlyFields, twoDigitYear, vvecperiod, year0, |
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I vvecfile, |
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O vvecfile0, |
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I myTime, myIter, myThid ) |
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IF ( exf_debugLev.GE.debLevC ) THEN |
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_BEGIN_MASTER(myThid) |
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j = ILNBLNK(uvecfile0) |
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WRITE(msgBuf,'(A,I10,A,I6,2A)') |
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& ' EXF_SET_UV: it=', myIter, ' loading rec=', count0, |
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& ' from: ', uvecfile0(1:j) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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j = ILNBLNK(vvecfile0) |
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WRITE(msgBuf,'(A,I10,A,I6,2A)') |
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& ' EXF_SET_UV: it=', myIter, ' loading rec=', count0, |
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& ' from: ', vvecfile0(1:j) |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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_END_MASTER(myThid) |
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ENDIF |
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|
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IF ( uvInterp ) THEN |
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C- vector interpolation to (xC,yC) locations |
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CALL EXF_INTERP_UV( |
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I uvecfile0, vvecfile0, exf_iprec, count0, |
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I uvec_nlon, uvec_nlat, |
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I uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
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O tmp_u, tmp_v, |
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I xC, yC, |
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I u_interp_method, v_interp_method, myIter, myThid ) |
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ELSE |
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C- scalar interpolation to (xC,yC) locations |
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CALL EXF_INTERP( |
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I uvecfile0, exf_iprec, |
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O tmp_u, |
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I count0, xC, yC, |
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I uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
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I uvec_nlon, uvec_nlat, u_interp_method, |
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I myIter, myThid ) |
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CALL EXF_INTERP( |
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I vvecfile0, exf_iprec, |
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O tmp_v, |
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I count0, xC, yC, |
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I vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
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I vvec_nlon, vvec_nlat, v_interp_method, |
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I myIter, myThid ) |
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ENDIF |
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|
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C- vector rotation |
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IF ( usingCurvilinearGrid .OR. rotateGrid ) THEN |
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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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#ifdef EXF_USE_OLD_VEC_ROTATION |
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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 |
| 223 |
IF ((x3-x1).GT.180) x3=x3-360 |
| 224 |
IF ((x1-x3).GT.180) x3=x3+360 |
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IF ((x4-x1).GT.180) x4=x4-360 |
| 226 |
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* |
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& 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)= |
| 236 |
& (tmp_u(i,j,bi,bj)*dx+ |
| 237 |
& tmp_v(i,j,bi,bj)*dy)/ |
| 238 |
& SQRT(dx*dx+dy*dy) |
| 239 |
dx=0.5*(x2+x4-x1-x3) |
| 240 |
dx=dx* |
| 241 |
& cos(deg2rad*yC(i,j,bi,bj)) |
| 242 |
dy=0.5*(y2+y4-y1-y3) |
| 243 |
uvec1(i,j,bi,bj)= |
| 244 |
& (tmp_u(i,j,bi,bj)*dx+ |
| 245 |
& tmp_v(i,j,bi,bj)*dy)/ |
| 246 |
& SQRT(dx*dx+dy*dy) |
| 247 |
#else /* EXF_USE_OLD_VEC_ROTATION */ |
| 248 |
uvec1(i,j,bi,bj) = |
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& angleCosC(i,j,bi,bj)*tmp_u(i,j,bi,bj) |
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& +angleSinC(i,j,bi,bj)*tmp_v(i,j,bi,bj) |
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vvec1(i,j,bi,bj) = |
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& -angleSinC(i,j,bi,bj)*tmp_u(i,j,bi,bj) |
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& +angleCosC(i,j,bi,bj)*tmp_v(i,j,bi,bj) |
| 254 |
#endif /* EXF_USE_OLD_VEC_ROTATION */ |
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ENDDO |
| 256 |
ENDDO |
| 257 |
ENDDO |
| 258 |
ENDDO |
| 259 |
ELSE |
| 260 |
DO bj = myByLo(myThid),myByHi(myThid) |
| 261 |
DO bi = myBxLo(myThid),myBxHi(myThid) |
| 262 |
DO j = 1,sNy |
| 263 |
DO i = 1,sNx |
| 264 |
uvec1(i,j,bi,bj) = tmp_u(i,j,bi,bj) |
| 265 |
vvec1(i,j,bi,bj) = tmp_v(i,j,bi,bj) |
| 266 |
ENDDO |
| 267 |
ENDDO |
| 268 |
ENDDO |
| 269 |
ENDDO |
| 270 |
ENDIF |
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C- apply mask |
| 272 |
CALL EXF_FILTER_RL( uvec1, uvecmask, myThid ) |
| 273 |
CALL EXF_FILTER_RL( vvec1, vvecmask, myThid ) |
| 274 |
ENDIF |
| 275 |
|
| 276 |
IF ( first .OR. changed ) THEN |
| 277 |
C-- Load and interpolate a new reccord |
| 278 |
|
| 279 |
CALL exf_SwapFFields( uvec0, uvec1, myThid ) |
| 280 |
CALL exf_SwapFFields( vvec0, vvec1, myThid ) |
| 281 |
|
| 282 |
CALL exf_GetYearlyFieldName( |
| 283 |
I useExfYearlyFields, twoDigitYear, uvecperiod, year1, |
| 284 |
I uvecfile, |
| 285 |
O uvecfile1, |
| 286 |
I myTime, myIter, myThid ) |
| 287 |
CALL exf_GetYearlyFieldName( |
| 288 |
I useExfYearlyFields, twoDigitYear, vvecperiod, year1, |
| 289 |
I vvecfile, |
| 290 |
O vvecfile1, |
| 291 |
I myTime, myIter, myThid ) |
| 292 |
IF ( exf_debugLev.GE.debLevC ) THEN |
| 293 |
_BEGIN_MASTER(myThid) |
| 294 |
j = ILNBLNK(uvecfile1) |
| 295 |
WRITE(msgBuf,'(A,I10,A,I6,2A)') |
| 296 |
& ' EXF_SET_UV: it=', myIter, ' loading rec=', count1, |
| 297 |
& ' from: ', uvecfile1(1:j) |
| 298 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 299 |
& SQUEEZE_RIGHT, myThid ) |
| 300 |
j = ILNBLNK(vvecfile1) |
| 301 |
WRITE(msgBuf,'(A,I10,A,I6,2A)') |
| 302 |
& ' EXF_SET_UV: it=', myIter, ' loading rec=', count1, |
| 303 |
& ' from: ', vvecfile1(1:j) |
| 304 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 305 |
& SQUEEZE_RIGHT, myThid ) |
| 306 |
_END_MASTER(myThid) |
| 307 |
ENDIF |
| 308 |
|
| 309 |
IF ( uvInterp ) THEN |
| 310 |
C- vector interpolation to (xC,yC) locations |
| 311 |
CALL EXF_INTERP_UV( |
| 312 |
I uvecfile1, vvecfile1, exf_iprec, count1, |
| 313 |
I uvec_nlon, uvec_nlat, |
| 314 |
I uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
| 315 |
O tmp_u, tmp_v, |
| 316 |
I xC, yC, |
| 317 |
I u_interp_method, v_interp_method, myIter, myThid ) |
| 318 |
ELSE |
| 319 |
C- scalar interpolation to (xC,yC) locations |
| 320 |
CALL EXF_INTERP( |
| 321 |
I uvecfile1, exf_iprec, |
| 322 |
O tmp_u, |
| 323 |
I count1, xC, yC, |
| 324 |
I uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
| 325 |
I uvec_nlon, uvec_nlat, u_interp_method, |
| 326 |
I myIter, myThid ) |
| 327 |
CALL EXF_INTERP( |
| 328 |
I vvecfile1, exf_iprec, |
| 329 |
O tmp_v, |
| 330 |
I count1, xC, yC, |
| 331 |
I vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
| 332 |
I vvec_nlon, vvec_nlat, v_interp_method, |
| 333 |
I myIter, myThid ) |
| 334 |
ENDIF |
| 335 |
|
| 336 |
C- vector rotation |
| 337 |
IF ( usingCurvilinearGrid .OR. rotateGrid ) THEN |
| 338 |
DO bj = myByLo(myThid),myByHi(myThid) |
| 339 |
DO bi = myBxLo(myThid),myBxHi(myThid) |
| 340 |
DO j = 1,sNy |
| 341 |
DO i = 1,sNx |
| 342 |
#ifdef EXF_USE_OLD_VEC_ROTATION |
| 343 |
x1=xG(i,j,bi,bj) |
| 344 |
x2=xG(i+1,j,bi,bj) |
| 345 |
x3=xG(i,j+1,bi,bj) |
| 346 |
x4=xG(i+1,j+1,bi,bj) |
| 347 |
IF ((x2-x1).GT.180) x2=x2-360 |
| 348 |
IF ((x1-x2).GT.180) x2=x2+360 |
| 349 |
IF ((x3-x1).GT.180) x3=x3-360 |
| 350 |
IF ((x1-x3).GT.180) x3=x3+360 |
| 351 |
IF ((x4-x1).GT.180) x4=x4-360 |
| 352 |
IF ((x1-x4).GT.180) x4=x4+360 |
| 353 |
y1=yG(i,j,bi,bj) |
| 354 |
y2=yG(i+1,j,bi,bj) |
| 355 |
y3=yG(i,j+1,bi,bj) |
| 356 |
y4=yG(i+1,j+1,bi,bj) |
| 357 |
dx=0.5*(x3+x4-x1-x2) |
| 358 |
dx=dx* |
| 359 |
& cos(deg2rad*yC(i,j,bi,bj)) |
| 360 |
dy=0.5*(y3+y4-y1-y2) |
| 361 |
vvec1(i,j,bi,bj)= |
| 362 |
& (tmp_u(i,j,bi,bj)*dx+ |
| 363 |
& tmp_v(i,j,bi,bj)*dy)/ |
| 364 |
& SQRT(dx*dx+dy*dy) |
| 365 |
dx=0.5*(x2+x4-x1-x3) |
| 366 |
dx=dx* |
| 367 |
& cos(deg2rad*yC(i,j,bi,bj)) |
| 368 |
dy=0.5*(y2+y4-y1-y3) |
| 369 |
uvec1(i,j,bi,bj)= |
| 370 |
& (tmp_u(i,j,bi,bj)*dx+ |
| 371 |
& tmp_v(i,j,bi,bj)*dy)/ |
| 372 |
& SQRT(dx*dx+dy*dy) |
| 373 |
#else /* EXF_USE_OLD_VEC_ROTATION */ |
| 374 |
uvec1(i,j,bi,bj) = |
| 375 |
& angleCosC(i,j,bi,bj)*tmp_u(i,j,bi,bj) |
| 376 |
& +angleSinC(i,j,bi,bj)*tmp_v(i,j,bi,bj) |
| 377 |
vvec1(i,j,bi,bj) = |
| 378 |
& -angleSinC(i,j,bi,bj)*tmp_u(i,j,bi,bj) |
| 379 |
& +angleCosC(i,j,bi,bj)*tmp_v(i,j,bi,bj) |
| 380 |
#endif /* EXF_USE_OLD_VEC_ROTATION */ |
| 381 |
ENDDO |
| 382 |
ENDDO |
| 383 |
ENDDO |
| 384 |
ENDDO |
| 385 |
ELSE |
| 386 |
DO bj = myByLo(myThid),myByHi(myThid) |
| 387 |
DO bi = myBxLo(myThid),myBxHi(myThid) |
| 388 |
DO j = 1,sNy |
| 389 |
DO i = 1,sNx |
| 390 |
uvec1(i,j,bi,bj) = tmp_u(i,j,bi,bj) |
| 391 |
vvec1(i,j,bi,bj) = tmp_v(i,j,bi,bj) |
| 392 |
ENDDO |
| 393 |
ENDDO |
| 394 |
ENDDO |
| 395 |
ENDDO |
| 396 |
ENDIF |
| 397 |
C- apply mask |
| 398 |
CALL EXF_FILTER_RL( uvec1, uvecmask, myThid ) |
| 399 |
CALL EXF_FILTER_RL( vvec1, vvecmask, myThid ) |
| 400 |
ENDIF |
| 401 |
|
| 402 |
C-- Interpolate linearly onto the current time. |
| 403 |
DO bj = myByLo(myThid),myByHi(myThid) |
| 404 |
DO bi = myBxLo(myThid),myBxHi(myThid) |
| 405 |
DO j = 1,sNy |
| 406 |
DO i = 1,sNx |
| 407 |
uvec(i,j,bi,bj) = exf_inscal_uvec * ( |
| 408 |
& fac * uvec0(i,j,bi,bj) + |
| 409 |
& (exf_one - fac) * uvec1(i,j,bi,bj) ) |
| 410 |
vvec(i,j,bi,bj) = exf_inscal_vvec * ( |
| 411 |
& fac * vvec0(i,j,bi,bj) + |
| 412 |
& (exf_one - fac) * vvec1(i,j,bi,bj) ) |
| 413 |
ENDDO |
| 414 |
ENDDO |
| 415 |
ENDDO |
| 416 |
ENDDO |
| 417 |
|
| 418 |
ELSE |
| 419 |
C case no-interpolation |
| 420 |
C or ( .NOT.usingCurvilinearGrid & .NOT.rotateGrid & .NOT.uvInterp ) |
| 421 |
#else /* USE_EXF_INTERPOLATION */ |
| 422 |
IF ( .TRUE. ) THEN |
| 423 |
#endif /* USE_EXF_INTERPOLATION */ |
| 424 |
|
| 425 |
CALL EXF_SET_GEN( |
| 426 |
& uvecfile, uvecstartdate, uvecperiod, |
| 427 |
& exf_inscal_uvec, |
| 428 |
& uvec_remove_intercept, uvec_remove_slope, |
| 429 |
& uvec, uvec0, uvec1, uvecmask, |
| 430 |
#ifdef USE_EXF_INTERPOLATION |
| 431 |
& uvec_lon0, uvec_lon_inc, uvec_lat0, uvec_lat_inc, |
| 432 |
& uvec_nlon, uvec_nlat, xC, yC, u_interp_method, |
| 433 |
#endif /* USE_EXF_INTERPOLATION */ |
| 434 |
& myTime, myIter, myThid ) |
| 435 |
|
| 436 |
CALL EXF_SET_GEN( |
| 437 |
& vvecfile, vvecstartdate, vvecperiod, |
| 438 |
& exf_inscal_vvec, |
| 439 |
& vvec_remove_intercept, vvec_remove_slope, |
| 440 |
& vvec, vvec0, vvec1, vvecmask, |
| 441 |
#ifdef USE_EXF_INTERPOLATION |
| 442 |
& vvec_lon0, vvec_lon_inc, vvec_lat0, vvec_lat_inc, |
| 443 |
& vvec_nlon, vvec_nlat, xC, yC, v_interp_method, |
| 444 |
#endif /* USE_EXF_INTERPOLATION */ |
| 445 |
& myTime, myIter, myThid ) |
| 446 |
|
| 447 |
ENDIF |
| 448 |
|
| 449 |
RETURN |
| 450 |
END |
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