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! $Id: fxysinus.F 2597 2016-07-22 06:44:47Z emillour $ |
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SUBROUTINE fxysinus (rlatu,yprimu,rlatv,yprimv,rlatu1,yprimu1, |
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, rlatu2,yprimu2, |
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, rlonu,xprimu,rlonv,xprimv,rlonm025,xprimm025,rlonp025,xprimp025) |
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USE comconst_mod, ONLY: pi |
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IMPLICIT NONE |
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c Calcul des longitudes et des latitudes pour une fonction f(x,y) |
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c avec y = Asin( j ) . |
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c Auteur : P. Le Van |
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!----------------------------------------------------------------------- |
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! INCLUDE 'dimensions.h' |
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! dimensions.h contient les dimensions du modele |
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! ndm est tel que iim=2**ndm |
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!----------------------------------------------------------------------- |
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INTEGER iim,jjm,llm,ndm |
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PARAMETER (iim= 32,jjm=32,llm=39,ndm=1) |
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!----------------------------------------------------------------------- |
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! $Header$ |
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! ATTENTION!!!!: ce fichier include est compatible format fixe/format libre |
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! veillez n'utiliser que des ! pour les commentaires |
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! et bien positionner les & des lignes de continuation |
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! (les placer en colonne 6 et en colonne 73) |
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!----------------------------------------------------------------------- |
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! INCLUDE 'paramet.h' |
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INTEGER iip1,iip2,iip3,jjp1,llmp1,llmp2,llmm1 |
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INTEGER kftd,ip1jm,ip1jmp1,ip1jmi1,ijp1llm |
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INTEGER ijmllm,mvar |
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INTEGER jcfil,jcfllm |
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PARAMETER( iip1= iim+1,iip2=iim+2,iip3=iim+3 & |
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& ,jjp1=jjm+1-1/jjm) |
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PARAMETER( llmp1 = llm+1, llmp2 = llm+2, llmm1 = llm-1 ) |
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PARAMETER( kftd = iim/2 -ndm ) |
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PARAMETER( ip1jm = iip1*jjm, ip1jmp1= iip1*jjp1 ) |
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PARAMETER( ip1jmi1= ip1jm - iip1 ) |
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PARAMETER( ijp1llm= ip1jmp1 * llm, ijmllm= ip1jm * llm ) |
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PARAMETER( mvar= ip1jmp1*( 2*llm+1) + ijmllm ) |
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PARAMETER( jcfil=jjm/2+5, jcfllm=jcfil*llm ) |
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!----------------------------------------------------------------------- |
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INTEGER i,j |
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REAL rlatu(jjp1), yprimu(jjp1),rlatv(jjm), yprimv(jjm), |
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, rlatu1(jjm), yprimu1(jjm), rlatu2(jjm), yprimu2(jjm) |
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REAL rlonu(iip1),xprimu(iip1),rlonv(iip1),xprimv(iip1), |
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, rlonm025(iip1),xprimm025(iip1), rlonp025(iip1),xprimp025(iip1) |
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! $Header$ |
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c----------------------------------------------------------------------- |
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c INCLUDE 'fxyprim.h' |
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c ................................................................ |
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c ................ Fonctions in line ........................... |
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c ................................................................ |
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REAL fy, fx, fxprim, fyprim |
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REAL ri, rj |
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fy(rj)=ASIN(1.+2.*((1.-rj)/REAL(jjm))) |
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fyprim(rj)=1./SQRT((rj-1.)*(jjm+1.-rj)) |
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fx ( ri ) = 2.*pi/REAL(iim) * ( ri - 0.5* REAL(iim) - 1. ) |
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c fx ( ri ) = 2.*pi/REAL(iim) * ( ri - 0.5* ( REAL(iim) + 1.) ) |
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fxprim( ri ) = 2.*pi/REAL(iim) |
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c La valeur de pi est passee par le common/const/ou /const2/ . |
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c Sinon, il faut la calculer avant d'appeler ces fonctions . |
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c ---------------------------------------------------------------- |
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c Fonctions a changer eventuellement, selon x(x) et y(y) choisis . |
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c ----------------------------------------------------------------- |
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c |
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c ..... ici, on a l'application particuliere suivante ........ |
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c ************************************** |
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c ** x = 2. * pi/iim * X ** |
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c ** y = pi/jjm * Y ** |
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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 ...... calcul des latitudes et de y' ..... |
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c |
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DO j = 1, jjm + 1 |
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rlatu(j) = fy ( REAL( j ) ) |
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yprimu(j) = fyprim( REAL( j ) ) |
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ENDDO |
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DO j = 1, jjm |
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rlatv(j) = fy ( REAL( j ) + 0.5 ) |
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rlatu1(j) = fy ( REAL( j ) + 0.25 ) |
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rlatu2(j) = fy ( REAL( j ) + 0.75 ) |
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yprimv(j) = fyprim( REAL( j ) + 0.5 ) |
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yprimu1(j) = fyprim( REAL( j ) + 0.25 ) |
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yprimu2(j) = fyprim( REAL( j ) + 0.75 ) |
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ENDDO |
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c ..... calcul des longitudes et de x' ..... |
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DO i = 1, iim + 1 |
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rlonv(i) = fx ( REAL( i ) ) |
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rlonu(i) = fx ( REAL( i ) + 0.5 ) |
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rlonm025(i) = fx ( REAL( i ) - 0.25 ) |
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rlonp025(i) = fx ( REAL( i ) + 0.25 ) |
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xprimv (i) = fxprim ( REAL( i ) ) |
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xprimu (i) = fxprim ( REAL( i ) + 0.5 ) |
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xprimm025(i) = fxprim ( REAL( i ) - 0.25 ) |
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xprimp025(i) = fxprim ( REAL( i ) + 0.25 ) |
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ENDDO |
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c |
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RETURN |
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END |
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