1 |
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module inifilr_m |
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! $Header: /home/cvsroot/LMDZ4/libf/filtrez/inifilr.F,v 1.1.1.1 2004/05/19 12:53:09 lmdzadmin Exp $ |
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! |
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SUBROUTINE inifilr |
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c |
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c ... H. Upadhyaya, O.Sharma ... |
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c |
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use dimens_m |
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use paramet_m |
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use logic |
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use comgeom |
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use serre |
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use parafilt |
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IMPLICIT NONE |
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c |
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c version 3 ..... |
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c Correction le 28/10/97 P. Le Van . |
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c ------------------------------------------------------------------- |
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c ------------------------------------------------------------------- |
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include "coefils.h" |
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REAL dlonu(iim),dlatu(jjm) |
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REAL rlamda( iim ), eignvl( iim ) |
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c |
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REAL lamdamax,pi,cof |
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INTEGER i,j,modemax,imx,k,kf,ii |
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REAL dymin,dxmin,colat0 |
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REAL eignft(iim,iim), coff |
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REAL matriceun,matriceus,matricevn,matricevs,matrinvn,matrinvs |
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COMMON/matrfil/matriceun(iim,iim,nfilun),matriceus(iim,iim,nfilus) |
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, , matricevn(iim,iim,nfilvn),matricevs(iim,iim,nfilvs) |
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, , matrinvn(iim,iim,nfilun),matrinvs (iim,iim,nfilus) |
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EXTERNAL inifgn |
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c |
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c ------------------------------------------------------------ |
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c This routine computes the eigenfunctions of the laplacien |
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c on the stretched grid, and the filtering coefficients |
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c |
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c We designate: |
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c eignfn eigenfunctions of the discrete laplacien |
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c eigenvl eigenvalues |
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c jfiltn indexof the last scalar line filtered in NH |
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c jfilts index of the first line filtered in SH |
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c modfrst index of the mode from where modes are filtered |
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c modemax maximum number of modes ( im ) |
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c coefil filtering coefficients ( lamda_max*cos(rlat)/lamda ) |
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c sdd SQRT( dx ) |
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c |
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c the modes are filtered from modfrst to modemax |
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c |
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c----------------------------------------------------------- |
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c |
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pi = 2. * ASIN( 1. ) |
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DO i = 1,iim |
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dlonu(i) = xprimu( i ) |
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ENDDO |
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c |
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CALL inifgn(eignvl) |
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c |
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print *,' EIGNVL ' |
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PRINT 250,eignvl |
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250 FORMAT( 1x,5e13.6) |
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c |
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c compute eigenvalues and eigenfunctions |
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c |
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c |
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c................................................................. |
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c |
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c compute the filtering coefficients for scalar lines and |
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c meridional wind v-lines |
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c |
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c we filter all those latitude lines where coefil < 1 |
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c NO FILTERING AT POLES |
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c |
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c colat0 is to be used when alpha (stretching coefficient) |
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c is set equal to zero for the regular grid case |
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c |
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c ....... Calcul de colat0 ......... |
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c ..... colat0 = minimum de ( 0.5, min dy/ min dx ) ... |
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c |
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c |
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DO 45 j = 1,jjm |
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dlatu( j ) = rlatu( j ) - rlatu( j+1 ) |
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45 CONTINUE |
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c |
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dxmin = dlonu(1) |
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DO i = 2, iim |
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dxmin = MIN( dxmin,dlonu(i) ) |
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ENDDO |
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dymin = dlatu(1) |
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DO j = 2, jjm |
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dymin = MIN( dymin,dlatu(j) ) |
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ENDDO |
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c |
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c |
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colat0 = MIN( 0.5, dymin/dxmin ) |
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c |
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IF( .NOT.fxyhypb.AND.ysinus ) THEN |
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colat0 = 0.6 |
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c ...... a revoir pour ysinus ! ....... |
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alphax = 0. |
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ENDIF |
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c |
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PRINT 50, colat0,alphax |
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50 FORMAT(/15x,' Inifilr colat0 alphax ',2e16.7) |
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c |
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IF(alphax.EQ.1. ) THEN |
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PRINT *,' Inifilr alphax doit etre < a 1. Corriger ' |
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STOP 1 |
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ENDIF |
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c |
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lamdamax = iim / ( pi * colat0 * ( 1. - alphax ) ) |
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cc ... Correction le 28/10/97 ( P.Le Van ) .. |
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c |
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DO 71 i = 2,iim |
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rlamda( i ) = lamdamax/ SQRT( ABS( eignvl(i) ) ) |
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71 CONTINUE |
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c |
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DO 72 j = 1,jjm |
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DO 73 i = 1,iim |
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coefilu( i,j ) = 0.0 |
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coefilv( i,j ) = 0.0 |
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coefilu2( i,j ) = 0.0 |
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coefilv2( i,j ) = 0.0 |
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73 CONTINUE |
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72 CONTINUE |
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c |
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c ... Determination de jfiltnu,jfiltnv,jfiltsu,jfiltsv .... |
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c ......................................................... |
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c |
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modemax = iim |
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cccc imx = modemax - 4 * (modemax/iim) |
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imx = iim |
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c |
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PRINT *,' TRUNCATION AT ',imx |
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c |
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DO 75 j = 2, jjm/2+1 |
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cof = COS( rlatu(j) )/ colat0 |
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IF ( cof .LT. 1. ) THEN |
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IF( rlamda(imx) * COS(rlatu(j) ).LT.1. ) jfiltnu= j |
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ENDIF |
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cof = COS( rlatu(jjp1-j+1) )/ colat0 |
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IF ( cof .LT. 1. ) THEN |
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IF( rlamda(imx) * COS(rlatu(jjp1-j+1) ).LT.1. ) |
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$ jfiltsu= jjp1-j+1 |
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ENDIF |
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75 CONTINUE |
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c |
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DO 76 j = 1, jjm/2 |
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cof = COS( rlatv(j) )/ colat0 |
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IF ( cof .LT. 1. ) THEN |
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IF( rlamda(imx) * COS(rlatv(j) ).LT.1. ) jfiltnv= j |
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ENDIF |
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cof = COS( rlatv(jjm-j+1) )/ colat0 |
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IF ( cof .LT. 1. ) THEN |
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IF( rlamda(imx) * COS(rlatv(jjm-j+1) ).LT.1. ) |
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$ jfiltsv= jjm-j+1 |
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ENDIF |
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76 CONTINUE |
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c |
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if ( jfiltnu.LE.0 ) jfiltnu=1 |
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IF( jfiltnu.GT. jjm/2 +1 ) THEN |
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PRINT *,' jfiltnu en dehors des valeurs acceptables ' ,jfiltnu |
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STOP 1 |
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ENDIF |
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IF( jfiltsu.LE.0) jfiltsu=1 |
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IF( jfiltsu.GT. jjm +1 ) THEN |
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PRINT *,' jfiltsu en dehors des valeurs acceptables ' ,jfiltsu |
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STOP 1 |
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ENDIF |
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IF( jfiltnv.LE.0) jfiltnv=1 |
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IF( jfiltnv.GT. jjm/2 ) THEN |
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PRINT *,' jfiltnv en dehors des valeurs acceptables ' ,jfiltnv |
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STOP 1 |
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ENDIF |
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IF( jfiltsv.LE.0) jfiltsv=1 |
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IF( jfiltsv.GT. jjm ) THEN |
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PRINT *,' jfiltsv en dehors des valeurs acceptables ' ,jfiltsv |
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STOP 1 |
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ENDIF |
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PRINT *,' jfiltnv jfiltsv jfiltnu jfiltsu ' , |
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* jfiltnv,jfiltsv,jfiltnu,jfiltsu |
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c |
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c ... Determination de coefilu,coefilv,n=modfrstu,modfrstv .... |
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c................................................................ |
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c |
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c |
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DO 77 j = 1,jjm |
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modfrstu( j ) = iim |
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modfrstv( j ) = iim |
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77 CONTINUE |
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c |
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DO 84 j = 2,jfiltnu |
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DO 81 k = 2,modemax |
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cof = rlamda(k) * COS( rlatu(j) ) |
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IF ( cof .LT. 1. ) GOTO 82 |
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81 CONTINUE |
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GOTO 84 |
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82 modfrstu( j ) = k |
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c |
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kf = modfrstu( j ) |
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DO 83 k = kf , modemax |
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cof = rlamda(k) * COS( rlatu(j) ) |
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coefilu(k,j) = cof - 1. |
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coefilu2(k,j) = cof*cof - 1. |
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83 CONTINUE |
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84 CONTINUE |
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c |
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c |
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DO 89 j = 1,jfiltnv |
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c |
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DO 86 k = 2,modemax |
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cof = rlamda(k) * COS( rlatv(j) ) |
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IF ( cof .LT. 1. ) GOTO 87 |
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86 CONTINUE |
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GOTO 89 |
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87 modfrstv( j ) = k |
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c |
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kf = modfrstv( j ) |
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DO 88 k = kf , modemax |
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cof = rlamda(k) * COS( rlatv(j) ) |
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coefilv(k,j) = cof - 1. |
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coefilv2(k,j) = cof*cof - 1. |
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88 CONTINUE |
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c |
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89 CONTINUE |
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c |
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DO 94 j = jfiltsu,jjm |
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DO 91 k = 2,modemax |
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cof = rlamda(k) * COS( rlatu(j) ) |
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IF ( cof .LT. 1. ) GOTO 92 |
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91 CONTINUE |
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GOTO 94 |
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92 modfrstu( j ) = k |
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c |
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kf = modfrstu( j ) |
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DO 93 k = kf , modemax |
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cof = rlamda(k) * COS( rlatu(j) ) |
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coefilu(k,j) = cof - 1. |
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coefilu2(k,j) = cof*cof - 1. |
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93 CONTINUE |
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94 CONTINUE |
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c |
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DO 99 j = jfiltsv,jjm |
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DO 96 k = 2,modemax |
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cof = rlamda(k) * COS( rlatv(j) ) |
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IF ( cof .LT. 1. ) GOTO 97 |
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96 CONTINUE |
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GOTO 99 |
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97 modfrstv( j ) = k |
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c |
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kf = modfrstv( j ) |
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DO 98 k = kf , modemax |
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cof = rlamda(k) * COS( rlatv(j) ) |
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coefilv(k,j) = cof - 1. |
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coefilv2(k,j) = cof*cof - 1. |
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98 CONTINUE |
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99 CONTINUE |
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c |
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IF(jfiltnv.GE.jjm/2 .OR. jfiltnu.GE.jjm/2)THEN |
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IF(jfiltnv.EQ.jfiltsv)jfiltsv=1+jfiltnv |
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IF(jfiltnu.EQ.jfiltsu)jfiltsu=1+jfiltnu |
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PRINT *,'jfiltnv jfiltsv jfiltnu jfiltsu' , |
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* jfiltnv,jfiltsv,jfiltnu,jfiltsu |
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ENDIF |
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PRINT *,' Modes premiers v ' |
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PRINT 334,modfrstv |
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PRINT *,' Modes premiers u ' |
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PRINT 334,modfrstu |
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IF( nfilun.LT. jfiltnu ) THEN |
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PRINT *,' le parametre nfilun utilise pour la matrice ', |
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* ' matriceun est trop petit ! ' |
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PRINT *,'Le changer dans parafilt.h et le mettre a ',jfiltnu |
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PRINT *,' Pour information, nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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STOP 1 |
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ENDIF |
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IF( nfilun.GT. jfiltnu+ 2 ) THEN |
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PRINT *,' le parametre nfilun utilise pour la matrice ', |
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*' matriceun est trop grand ! Gachis de memoire ! ' |
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PRINT *,'Le changer dans parafilt.h et le mettre a ',jfiltnu |
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PRINT *,' Pour information, nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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c STOP 1 |
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ENDIF |
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IF( nfilus.LT. jjm - jfiltsu +1 ) THEN |
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PRINT *,' le parametre nfilus utilise pour la matrice ', |
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* ' matriceus est trop petit ! ' |
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PRINT *,' Le changer dans parafilt.h et le mettre a ', |
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* jjm - jfiltsu + 1 |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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STOP 1 |
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ENDIF |
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IF( nfilus.GT. jjm - jfiltsu + 3 ) THEN |
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PRINT *,' le parametre nfilus utilise pour la matrice ', |
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* ' matriceus est trop grand ! ' |
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PRINT *,' Le changer dans parafilt.h et le mettre a ' , |
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* jjm - jfiltsu + 1 |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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c STOP 1 |
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ENDIF |
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IF( nfilvn.LT. jfiltnv ) THEN |
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PRINT *,' le parametre nfilvn utilise pour la matrice ', |
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* ' matricevn est trop petit ! ' |
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PRINT *,'Le changer dans parafilt.h et le mettre a ',jfiltnv |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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STOP 1 |
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ENDIF |
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IF( nfilvn.GT. jfiltnv+ 2 ) THEN |
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PRINT *,' le parametre nfilvn utilise pour la matrice ', |
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*' matricevn est trop grand ! Gachis de memoire ! ' |
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PRINT *,'Le changer dans parafilt.h et le mettre a ',jfiltnv |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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c STOP 1 |
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ENDIF |
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IF( nfilvs.LT. jjm - jfiltsv +1 ) THEN |
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PRINT *,' le parametre nfilvs utilise pour la matrice ', |
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* ' matricevs est trop petit ! Le changer dans parafilt.h ' |
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PRINT *,' Le changer dans parafilt.h et le mettre a ' |
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* , jjm - jfiltsv + 1 |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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STOP 1 |
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ENDIF |
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IF( nfilvs.GT. jjm - jfiltsv + 3 ) THEN |
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PRINT *,' le parametre nfilvs utilise pour la matrice ', |
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* ' matricevs est trop grand ! Gachis de memoire ! ' |
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PRINT *,' Le changer dans parafilt.h et le mettre a ' |
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* , jjm - jfiltsv + 1 |
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PRINT *,' Pour information , nfilun,nfilus,nfilvn,nfilvs ' |
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* ,'doivent etre egaux successivement a ',jfiltnu,jjm-jfiltsu+1 |
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* ,jfiltnv,jjm-jfiltsv+1 |
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c STOP 1 |
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ENDIF |
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c |
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c ................................................................... |
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c |
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c ... Calcul de la matrice filtre 'matriceu' pour les champs situes |
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c sur la grille scalaire ........ |
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c ................................................................... |
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c |
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DO j = 2, jfiltnu |
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DO i=1,iim |
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coff = coefilu(i,j) |
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IF( i.LT.modfrstu(j) ) coff = 0. |
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DO k=1,iim |
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eignft(i,k) = eignfnv(k,i) * coff |
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ENDDO |
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ENDDO |
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DO k = 1, iim |
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DO i = 1, iim |
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matriceun(i,k,j) = 0.0 |
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DO ii = 1, iim |
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matriceun(i,k,j) = matriceun(i,k,j) |
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. + eignfnv(i,ii)*eignft(ii,k) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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DO j = jfiltsu, jjm |
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DO i=1,iim |
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coff = coefilu(i,j) |
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IF( i.LT.modfrstu(j) ) coff = 0. |
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DO k=1,iim |
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eignft(i,k) = eignfnv(k,i) * coff |
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ENDDO |
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ENDDO |
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DO k = 1, iim |
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DO i = 1, iim |
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matriceus(i,k,j-jfiltsu+1) = 0.0 |
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DO ii = 1, iim |
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matriceus(i,k,j-jfiltsu+1) = matriceus(i,k,j-jfiltsu+1) |
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. + eignfnv(i,ii)*eignft(ii,k) |
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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 ................................................................... |
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c |
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c ... Calcul de la matrice filtre 'matricev' pour les champs situes |
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c sur la grille de V ou de Z ........ |
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c ................................................................... |
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c |
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DO j = 1, jfiltnv |
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DO i = 1, iim |
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coff = coefilv(i,j) |
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IF( i.LT.modfrstv(j) ) coff = 0. |
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DO k = 1, iim |
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eignft(i,k) = eignfnu(k,i) * coff |
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ENDDO |
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ENDDO |
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DO k = 1, iim |
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DO i = 1, iim |
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matricevn(i,k,j) = 0.0 |
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DO ii = 1, iim |
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matricevn(i,k,j) = matricevn(i,k,j) |
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. + eignfnu(i,ii)*eignft(ii,k) |
|
|
ENDDO |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
ENDDO |
|
|
|
|
|
DO j = jfiltsv, jjm |
|
|
|
|
|
DO i = 1, iim |
|
|
coff = coefilv(i,j) |
|
|
IF( i.LT.modfrstv(j) ) coff = 0. |
|
|
DO k = 1, iim |
|
|
eignft(i,k) = eignfnu(k,i) * coff |
|
|
ENDDO |
|
|
ENDDO |
|
|
DO k = 1, iim |
|
|
DO i = 1, iim |
|
|
matricevs(i,k,j-jfiltsv+1) = 0.0 |
|
|
DO ii = 1, iim |
|
|
matricevs(i,k,j-jfiltsv+1) = matricevs(i,k,j-jfiltsv+1) |
|
|
. + eignfnu(i,ii)*eignft(ii,k) |
|
|
ENDDO |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
ENDDO |
|
|
|
|
|
c ................................................................... |
|
|
c |
|
|
c ... Calcul de la matrice filtre 'matrinv' pour les champs situes |
|
|
c sur la grille scalaire , pour le filtre inverse ........ |
|
|
c ................................................................... |
|
|
c |
|
|
DO j = 2, jfiltnu |
|
|
|
|
|
DO i = 1,iim |
|
|
coff = coefilu(i,j)/ ( 1. + coefilu(i,j) ) |
|
|
IF( i.LT.modfrstu(j) ) coff = 0. |
|
|
DO k=1,iim |
|
|
eignft(i,k) = eignfnv(k,i) * coff |
|
|
ENDDO |
|
|
ENDDO |
|
|
DO k = 1, iim |
|
|
DO i = 1, iim |
|
|
matrinvn(i,k,j) = 0.0 |
|
|
DO ii = 1, iim |
|
|
matrinvn(i,k,j) = matrinvn(i,k,j) |
|
|
. + eignfnv(i,ii)*eignft(ii,k) |
|
|
ENDDO |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
ENDDO |
|
|
|
|
|
DO j = jfiltsu, jjm |
|
|
|
|
|
DO i = 1,iim |
|
|
coff = coefilu(i,j) / ( 1. + coefilu(i,j) ) |
|
|
IF( i.LT.modfrstu(j) ) coff = 0. |
|
|
DO k=1,iim |
|
|
eignft(i,k) = eignfnv(k,i) * coff |
|
|
ENDDO |
|
|
ENDDO |
|
|
DO k = 1, iim |
|
|
DO i = 1, iim |
|
|
matrinvs(i,k,j-jfiltsu+1) = 0.0 |
|
|
DO ii = 1, iim |
|
|
matrinvs(i,k,j-jfiltsu+1) = matrinvs(i,k,j-jfiltsu+1) |
|
|
. + eignfnv(i,ii)*eignft(ii,k) |
|
|
ENDDO |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
ENDDO |
|
|
|
|
|
c ................................................................... |
|
|
|
|
|
c |
|
|
334 FORMAT(1x,24i3) |
|
|
755 FORMAT(1x,6f10.3,i3) |
|
2 |
|
|
3 |
RETURN |
IMPLICIT NONE |
4 |
END |
|
5 |
|
INTEGER jfiltnu, jfiltsu, jfiltnv, jfiltsv |
6 |
|
|
7 |
|
! North: |
8 |
|
real, allocatable:: matriceun(:, :, :), matrinvn(:, :, :) |
9 |
|
! (iim, iim, 2:jfiltnu) |
10 |
|
|
11 |
|
real, allocatable:: matricevn(:, :, :) ! (iim, iim, jfiltnv) |
12 |
|
|
13 |
|
! South: |
14 |
|
real, allocatable:: matriceus(:, :, :), matrinvs(:, :, :) |
15 |
|
! (iim, iim, jfiltsu:jjm) |
16 |
|
|
17 |
|
real, allocatable:: matricevs(:, :, :) ! (iim, iim, jfiltsv:jjm) |
18 |
|
|
19 |
|
contains |
20 |
|
|
21 |
|
SUBROUTINE inifilr |
22 |
|
|
23 |
|
! From filtrez/inifilr.F, version 1.1.1.1 2004/05/19 12:53:09 |
24 |
|
! H. Upadhyaya, O. Sharma |
25 |
|
|
26 |
|
! This routine computes the eigenfunctions of the laplacian on the |
27 |
|
! stretched grid, and the filtering coefficients. |
28 |
|
! We designate: |
29 |
|
! eignfn eigenfunctions of the discrete laplacian |
30 |
|
! eigenvl eigenvalues |
31 |
|
! jfiltn index of the last scalar line filtered in NH |
32 |
|
! jfilts index of the first line filtered in SH |
33 |
|
! modfrst index of the mode from where modes are filtered |
34 |
|
! modemax maximum number of modes (im) |
35 |
|
! coefil filtering coefficients (lamda_max * cos(rlat) / lamda) |
36 |
|
! sdd SQRT(dx) |
37 |
|
|
38 |
|
! The modes are filtered from modfrst to modemax. |
39 |
|
|
40 |
|
USE coefils, ONLY : coefilu, coefilu2, coefilv, coefilv2, eignfnu, & |
41 |
|
eignfnv, modfrstu, modfrstv |
42 |
|
USE comgeom, ONLY : rlatu, rlatv, xprimu |
43 |
|
USE dimens_m, ONLY : iim, jjm |
44 |
|
use inifgn_m, only: inifgn |
45 |
|
use nr_util, only: pi |
46 |
|
USE serre, ONLY : grossismx |
47 |
|
|
48 |
|
! Local: |
49 |
|
REAL dlatu(jjm) |
50 |
|
REAL rlamda(2: iim), eignvl(iim) |
51 |
|
|
52 |
|
REAL lamdamax, cof |
53 |
|
INTEGER i, j, modemax, imx, k, kf |
54 |
|
REAL dymin, colat0 |
55 |
|
REAL eignft(iim, iim), coff |
56 |
|
|
57 |
|
!----------------------------------------------------------- |
58 |
|
|
59 |
|
print *, "Call sequence information: inifilr" |
60 |
|
|
61 |
|
CALL inifgn(eignvl) |
62 |
|
|
63 |
|
PRINT *, 'EIGNVL ' |
64 |
|
PRINT "(1X, 5E13.6)", eignvl |
65 |
|
|
66 |
|
! compute eigenvalues and eigenfunctions |
67 |
|
! compute the filtering coefficients for scalar lines and |
68 |
|
! meridional wind v-lines |
69 |
|
! we filter all those latitude lines where coefil < 1 |
70 |
|
! NO FILTERING AT POLES |
71 |
|
! colat0 is to be used when alpha (stretching coefficient) |
72 |
|
! is set equal to zero for the regular grid case |
73 |
|
|
74 |
|
! Calcul de colat0 |
75 |
|
|
76 |
|
DO j = 1, jjm |
77 |
|
dlatu(j) = rlatu(j) - rlatu(j+1) |
78 |
|
END DO |
79 |
|
|
80 |
|
dymin = dlatu(1) |
81 |
|
DO j = 2, jjm |
82 |
|
dymin = min(dymin, dlatu(j)) |
83 |
|
END DO |
84 |
|
|
85 |
|
colat0 = min(0.5, dymin / minval(xprimu(:iim))) |
86 |
|
|
87 |
|
PRINT *, 'colat0 = ', colat0 |
88 |
|
|
89 |
|
lamdamax = iim / (pi * colat0 / grossismx) |
90 |
|
rlamda = lamdamax / sqrt(abs(eignvl(2: iim))) |
91 |
|
|
92 |
|
DO j = 1, jjm |
93 |
|
DO i = 1, iim |
94 |
|
coefilu(i, j) = 0. |
95 |
|
coefilv(i, j) = 0. |
96 |
|
coefilu2(i, j) = 0. |
97 |
|
coefilv2(i, j) = 0. |
98 |
|
end DO |
99 |
|
END DO |
100 |
|
|
101 |
|
! Determination de jfiltnu, jfiltnv, jfiltsu, jfiltsv |
102 |
|
|
103 |
|
modemax = iim |
104 |
|
imx = iim |
105 |
|
|
106 |
|
PRINT *, 'TRUNCATION AT ', imx |
107 |
|
|
108 |
|
DO j = 2, jjm / 2 + 1 |
109 |
|
IF (cos(rlatu(j)) / colat0 < 1. & |
110 |
|
.and. rlamda(imx) * cos(rlatu(j)) < 1.) jfiltnu = j |
111 |
|
|
112 |
|
IF (cos(rlatu(jjm - j + 2)) / colat0 < 1. & |
113 |
|
.and. rlamda(imx) * cos(rlatu(jjm - j + 2)) < 1.) & |
114 |
|
jfiltsu = jjm - j + 2 |
115 |
|
END DO |
116 |
|
|
117 |
|
DO j = 1, jjm/2 |
118 |
|
cof = cos(rlatv(j))/colat0 |
119 |
|
IF (cof < 1.) THEN |
120 |
|
IF (rlamda(imx)*cos(rlatv(j)) < 1.) jfiltnv = j |
121 |
|
END IF |
122 |
|
|
123 |
|
cof = cos(rlatv(jjm-j+1))/colat0 |
124 |
|
IF (cof < 1.) THEN |
125 |
|
IF (rlamda(imx)*cos(rlatv(jjm-j+1)) < 1.) jfiltsv = jjm - j + 1 |
126 |
|
END IF |
127 |
|
END DO |
128 |
|
|
129 |
|
IF (jfiltnu <= 0) jfiltnu = 1 |
130 |
|
IF (jfiltnu > jjm/2+1) THEN |
131 |
|
PRINT *, 'jfiltnu en dehors des valeurs acceptables ', jfiltnu |
132 |
|
STOP 1 |
133 |
|
END IF |
134 |
|
|
135 |
|
IF (jfiltsu <= 0) jfiltsu = 1 |
136 |
|
IF (jfiltsu > jjm + 1) THEN |
137 |
|
PRINT *, 'jfiltsu en dehors des valeurs acceptables ', jfiltsu |
138 |
|
STOP 1 |
139 |
|
END IF |
140 |
|
|
141 |
|
IF (jfiltnv <= 0) jfiltnv = 1 |
142 |
|
IF (jfiltnv > jjm/2) THEN |
143 |
|
PRINT *, 'jfiltnv en dehors des valeurs acceptables ', jfiltnv |
144 |
|
STOP 1 |
145 |
|
END IF |
146 |
|
|
147 |
|
IF (jfiltsv <= 0) jfiltsv = 1 |
148 |
|
IF (jfiltsv > jjm) THEN |
149 |
|
PRINT *, 'jfiltsv en dehors des valeurs acceptables ', jfiltsv |
150 |
|
STOP 1 |
151 |
|
END IF |
152 |
|
|
153 |
|
PRINT *, 'jfiltnv jfiltsv jfiltnu jfiltsu ', jfiltnv, jfiltsv, jfiltnu, & |
154 |
|
jfiltsu |
155 |
|
|
156 |
|
! Determination de coefilu, coefilv, n=modfrstu, modfrstv |
157 |
|
|
158 |
|
DO j = 1, jjm |
159 |
|
modfrstu(j) = iim |
160 |
|
modfrstv(j) = iim |
161 |
|
END DO |
162 |
|
|
163 |
|
DO j = 2, jfiltnu |
164 |
|
DO k = 2, modemax |
165 |
|
cof = rlamda(k) * cos(rlatu(j)) |
166 |
|
IF (cof < 1.) exit |
167 |
|
end DO |
168 |
|
if (k == modemax + 1) cycle |
169 |
|
modfrstu(j) = k |
170 |
|
|
171 |
|
kf = modfrstu(j) |
172 |
|
DO k = kf, modemax |
173 |
|
cof = rlamda(k)*cos(rlatu(j)) |
174 |
|
coefilu(k, j) = cof - 1. |
175 |
|
coefilu2(k, j) = cof*cof - 1. |
176 |
|
end DO |
177 |
|
END DO |
178 |
|
|
179 |
|
DO j = 1, jfiltnv |
180 |
|
DO k = 2, modemax |
181 |
|
cof = rlamda(k)*cos(rlatv(j)) |
182 |
|
IF (cof < 1.) exit |
183 |
|
end DO |
184 |
|
if (k == modemax + 1) cycle |
185 |
|
modfrstv(j) = k |
186 |
|
|
187 |
|
kf = modfrstv(j) |
188 |
|
DO k = kf, modemax |
189 |
|
cof = rlamda(k)*cos(rlatv(j)) |
190 |
|
coefilv(k, j) = cof - 1. |
191 |
|
coefilv2(k, j) = cof*cof - 1. |
192 |
|
end DO |
193 |
|
end DO |
194 |
|
|
195 |
|
DO j = jfiltsu, jjm |
196 |
|
DO k = 2, modemax |
197 |
|
cof = rlamda(k)*cos(rlatu(j)) |
198 |
|
IF (cof < 1.) exit |
199 |
|
end DO |
200 |
|
if (k == modemax + 1) cycle |
201 |
|
modfrstu(j) = k |
202 |
|
|
203 |
|
kf = modfrstu(j) |
204 |
|
DO k = kf, modemax |
205 |
|
cof = rlamda(k)*cos(rlatu(j)) |
206 |
|
coefilu(k, j) = cof - 1. |
207 |
|
coefilu2(k, j) = cof*cof - 1. |
208 |
|
end DO |
209 |
|
end DO |
210 |
|
|
211 |
|
DO j = jfiltsv, jjm |
212 |
|
DO k = 2, modemax |
213 |
|
cof = rlamda(k)*cos(rlatv(j)) |
214 |
|
IF (cof < 1.) exit |
215 |
|
end DO |
216 |
|
if (k == modemax + 1) cycle |
217 |
|
modfrstv(j) = k |
218 |
|
|
219 |
|
kf = modfrstv(j) |
220 |
|
DO k = kf, modemax |
221 |
|
cof = rlamda(k)*cos(rlatv(j)) |
222 |
|
coefilv(k, j) = cof - 1. |
223 |
|
coefilv2(k, j) = cof*cof - 1. |
224 |
|
end DO |
225 |
|
END DO |
226 |
|
|
227 |
|
IF (jfiltnv>=jjm/2 .OR. jfiltnu>=jjm/2) THEN |
228 |
|
IF (jfiltnv == jfiltsv) jfiltsv = 1 + jfiltnv |
229 |
|
IF (jfiltnu == jfiltsu) jfiltsu = 1 + jfiltnu |
230 |
|
|
231 |
|
PRINT *, 'jfiltnv jfiltsv jfiltnu jfiltsu', jfiltnv, jfiltsv, jfiltnu, & |
232 |
|
jfiltsu |
233 |
|
END IF |
234 |
|
|
235 |
|
PRINT *, 'Modes premiers v ' |
236 |
|
PRINT 334, modfrstv |
237 |
|
PRINT *, 'Modes premiers u ' |
238 |
|
PRINT 334, modfrstu |
239 |
|
|
240 |
|
allocate(matriceun(iim, iim, 2:jfiltnu), matrinvn(iim, iim, 2:jfiltnu)) |
241 |
|
allocate(matricevn(iim, iim, jfiltnv)) |
242 |
|
allocate(matricevs(iim, iim, jfiltsv:jjm)) |
243 |
|
allocate(matriceus(iim, iim, jfiltsu:jjm), matrinvs(iim, iim, jfiltsu:jjm)) |
244 |
|
|
245 |
|
! Calcul de la matrice filtre 'matriceu' pour les champs situes |
246 |
|
! sur la grille scalaire |
247 |
|
|
248 |
|
DO j = 2, jfiltnu |
249 |
|
DO i = 1, iim |
250 |
|
IF (i < modfrstu(j)) then |
251 |
|
coff = 0. |
252 |
|
else |
253 |
|
coff = coefilu(i, j) |
254 |
|
end IF |
255 |
|
eignft(i, :) = eignfnv(:, i)*coff |
256 |
|
END DO |
257 |
|
matriceun(:, :, j) = matmul(eignfnv, eignft) |
258 |
|
END DO |
259 |
|
|
260 |
|
DO j = jfiltsu, jjm |
261 |
|
DO i = 1, iim |
262 |
|
IF (i < modfrstu(j)) then |
263 |
|
coff = 0. |
264 |
|
else |
265 |
|
coff = coefilu(i, j) |
266 |
|
end IF |
267 |
|
eignft(i, :) = eignfnv(:, i) * coff |
268 |
|
END DO |
269 |
|
matriceus(:, :, j) = matmul(eignfnv, eignft) |
270 |
|
END DO |
271 |
|
|
272 |
|
! Calcul de la matrice filtre 'matricev' pour les champs situes |
273 |
|
! sur la grille de V ou de Z |
274 |
|
|
275 |
|
DO j = 1, jfiltnv |
276 |
|
DO i = 1, iim |
277 |
|
IF (i < modfrstv(j)) then |
278 |
|
coff = 0. |
279 |
|
else |
280 |
|
coff = coefilv(i, j) |
281 |
|
end IF |
282 |
|
eignft(i, :) = eignfnu(:, i)*coff |
283 |
|
END DO |
284 |
|
matricevn(:, :, j) = matmul(eignfnu, eignft) |
285 |
|
END DO |
286 |
|
|
287 |
|
DO j = jfiltsv, jjm |
288 |
|
DO i = 1, iim |
289 |
|
IF (i < modfrstv(j)) then |
290 |
|
coff = 0. |
291 |
|
else |
292 |
|
coff = coefilv(i, j) |
293 |
|
end IF |
294 |
|
eignft(i, :) = eignfnu(:, i)*coff |
295 |
|
END DO |
296 |
|
matricevs(:, :, j) = matmul(eignfnu, eignft) |
297 |
|
END DO |
298 |
|
|
299 |
|
! Calcul de la matrice filtre 'matrinv' pour les champs situes |
300 |
|
! sur la grille scalaire , pour le filtre inverse |
301 |
|
|
302 |
|
DO j = 2, jfiltnu |
303 |
|
DO i = 1, iim |
304 |
|
IF (i < modfrstu(j)) then |
305 |
|
coff = 0. |
306 |
|
else |
307 |
|
coff = coefilu(i, j)/(1.+coefilu(i, j)) |
308 |
|
end IF |
309 |
|
eignft(i, :) = eignfnv(:, i)*coff |
310 |
|
END DO |
311 |
|
matrinvn(:, :, j) = matmul(eignfnv, eignft) |
312 |
|
END DO |
313 |
|
|
314 |
|
DO j = jfiltsu, jjm |
315 |
|
DO i = 1, iim |
316 |
|
IF (i < modfrstu(j)) then |
317 |
|
coff = 0. |
318 |
|
else |
319 |
|
coff = coefilu(i, j)/(1.+coefilu(i, j)) |
320 |
|
end IF |
321 |
|
eignft(i, :) = eignfnv(:, i)*coff |
322 |
|
END DO |
323 |
|
matrinvs(:, :, j) = matmul(eignfnv, eignft) |
324 |
|
END DO |
325 |
|
|
326 |
|
334 FORMAT (1X, 24I3) |
327 |
|
|
328 |
|
END SUBROUTINE inifilr |
329 |
|
|
330 |
|
end module inifilr_m |