| 1 |
! |
| 2 |
! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/fxysinus.F,v 1.1.1.1 2004/05/19 12:53:06 lmdzadmin Exp $ |
| 3 |
! |
| 4 |
SUBROUTINE fxysinus (rlatu,yprimu,rlatv,yprimv,rlatu1,yprimu1, |
| 5 |
, rlatu2,yprimu2, |
| 6 |
, rlonu,xprimu,rlonv,xprimv,rlonm025,xprimm025,rlonp025,xprimp025) |
| 7 |
|
| 8 |
|
| 9 |
use dimens_m |
| 10 |
use paramet_m |
| 11 |
use comconst |
| 12 |
use nr_util, only: pi |
| 13 |
IMPLICIT NONE |
| 14 |
c |
| 15 |
c Calcul des longitudes et des latitudes pour une fonction f(x,y) |
| 16 |
c avec y = Asin( j ) . |
| 17 |
c |
| 18 |
c Auteur : P. Le Van |
| 19 |
c |
| 20 |
c |
| 21 |
|
| 22 |
INTEGER i,j |
| 23 |
|
| 24 |
REAL rlatu(jjp1), yprimu(jjp1),rlatv(jjm), yprimv(jjm), |
| 25 |
, rlatu1(jjm), yprimu1(jjm), rlatu2(jjm), yprimu2(jjm) |
| 26 |
REAL rlonu(iip1),xprimu(iip1),rlonv(iip1),xprimv(iip1), |
| 27 |
, rlonm025(iip1),xprimm025(iip1), rlonp025(iip1),xprimp025(iip1) |
| 28 |
|
| 29 |
! |
| 30 |
! $Header: /home/cvsroot/LMDZ4/libf/grid/fxy_sin.h,v 1.1.1.1 2004/05/19 12:53:05 lmdzadmin Exp $ |
| 31 |
! |
| 32 |
c----------------------------------------------------------------------- |
| 33 |
c INCLUDE 'fxyprim.h' |
| 34 |
c |
| 35 |
c ................................................................ |
| 36 |
c ................ Fonctions in line ........................... |
| 37 |
c ................................................................ |
| 38 |
c |
| 39 |
REAL fy, fx, fxprim, fyprim |
| 40 |
REAL ri, rj |
| 41 |
c |
| 42 |
c |
| 43 |
fy(rj)=ASIN(1.+2.*((1.-rj)/FLOAT(jjm))) |
| 44 |
fyprim(rj)=1./SQRT((rj-1.)*(jjm+1.-rj)) |
| 45 |
|
| 46 |
fx ( ri ) = 2.*pi/FLOAT(iim) * ( ri - 0.5* FLOAT(iim) - 1. ) |
| 47 |
c fx ( ri ) = 2.*pi/FLOAT(iim) * ( ri - 0.5* ( FLOAT(iim) + 1.) ) |
| 48 |
fxprim( ri ) = 2.*pi/FLOAT(iim) |
| 49 |
c |
| 50 |
c |
| 51 |
c La valeur de pi est passee par le common/const/ou /const2/ . |
| 52 |
c Sinon, il faut la calculer avant d'appeler ces fonctions . |
| 53 |
c |
| 54 |
c ---------------------------------------------------------------- |
| 55 |
c Fonctions a changer eventuellement, selon x(x) et y(y) choisis . |
| 56 |
c ----------------------------------------------------------------- |
| 57 |
c |
| 58 |
c ..... ici, on a l'application particuliere suivante ........ |
| 59 |
c |
| 60 |
c ************************************** |
| 61 |
c ** x = 2. * pi/iim * X ** |
| 62 |
c ** y = pi/jjm * Y ** |
| 63 |
c ************************************** |
| 64 |
c |
| 65 |
c .................................................................. |
| 66 |
c .................................................................. |
| 67 |
c |
| 68 |
c |
| 69 |
c |
| 70 |
c----------------------------------------------------------------------- |
| 71 |
|
| 72 |
c ...... calcul des latitudes et de y' ..... |
| 73 |
c |
| 74 |
DO j = 1, jjm + 1 |
| 75 |
rlatu(j) = fy ( FLOAT( j ) ) |
| 76 |
yprimu(j) = fyprim( FLOAT( j ) ) |
| 77 |
ENDDO |
| 78 |
|
| 79 |
|
| 80 |
DO j = 1, jjm |
| 81 |
|
| 82 |
rlatv(j) = fy ( FLOAT( j ) + 0.5 ) |
| 83 |
rlatu1(j) = fy ( FLOAT( j ) + 0.25 ) |
| 84 |
rlatu2(j) = fy ( FLOAT( j ) + 0.75 ) |
| 85 |
|
| 86 |
yprimv(j) = fyprim( FLOAT( j ) + 0.5 ) |
| 87 |
yprimu1(j) = fyprim( FLOAT( j ) + 0.25 ) |
| 88 |
yprimu2(j) = fyprim( FLOAT( j ) + 0.75 ) |
| 89 |
|
| 90 |
ENDDO |
| 91 |
|
| 92 |
c |
| 93 |
c ..... calcul des longitudes et de x' ..... |
| 94 |
c |
| 95 |
DO i = 1, iim + 1 |
| 96 |
rlonv(i) = fx ( FLOAT( i ) ) |
| 97 |
rlonu(i) = fx ( FLOAT( i ) + 0.5 ) |
| 98 |
rlonm025(i) = fx ( FLOAT( i ) - 0.25 ) |
| 99 |
rlonp025(i) = fx ( FLOAT( i ) + 0.25 ) |
| 100 |
|
| 101 |
xprimv (i) = fxprim ( FLOAT( i ) ) |
| 102 |
xprimu (i) = fxprim ( FLOAT( i ) + 0.5 ) |
| 103 |
xprimm025(i) = fxprim ( FLOAT( i ) - 0.25 ) |
| 104 |
xprimp025(i) = fxprim ( FLOAT( i ) + 0.25 ) |
| 105 |
ENDDO |
| 106 |
|
| 107 |
c |
| 108 |
RETURN |
| 109 |
END |
| 110 |
|
Parent Directory
| 
Revision Log