1 |
guez |
7 |
SUBROUTINE fxy(rlatu, yprimu, rlatv, yprimv, rlatu1, yprimu1, rlatu2, & |
2 |
|
|
yprimu2, rlonu, xprimu, rlonv, xprimv, rlonm025, xprimm025, rlonp025, & |
3 |
|
|
xprimp025) |
4 |
guez |
3 |
|
5 |
guez |
7 |
! From dyn3d/fxy.F, v 1.1.1.1 2004/05/19 12:53:06 |
6 |
|
|
! Auteur : P. Le Van |
7 |
|
|
! Calcul des longitudes et des latitudes pour une fonction f(x, y) |
8 |
|
|
! à tangente sinusoïdale et éventuellement avec zoom. |
9 |
guez |
3 |
|
10 |
guez |
7 |
USE dimens_m, ONLY : iim, jjm |
11 |
guez |
3 |
|
12 |
guez |
7 |
IMPLICIT NONE |
13 |
guez |
3 |
|
14 |
guez |
7 |
REAL, INTENT (OUT) :: rlatu(jjm + 1), yprimu(jjm + 1), rlatv(jjm) |
15 |
|
|
REAL, INTENT (OUT) :: yprimv(jjm) |
16 |
|
|
REAL, INTENT (OUT) :: rlatu1(jjm) |
17 |
|
|
REAL, INTENT (OUT) :: yprimu1(jjm), rlatu2(jjm), yprimu2(jjm) |
18 |
|
|
REAL, INTENT (OUT) :: rlonu(iim + 1), xprimu(iim + 1), rlonv(iim + 1) |
19 |
|
|
REAL, INTENT (OUT) :: xprimv(iim + 1) |
20 |
|
|
REAL, INTENT (OUT) :: rlonm025(iim + 1), xprimm025(iim + 1) |
21 |
|
|
REAL, INTENT (OUT) :: rlonp025(iim + 1) |
22 |
|
|
REAL, INTENT (OUT) :: xprimp025(iim + 1) |
23 |
guez |
3 |
|
24 |
guez |
7 |
! Variables local to the procedure: |
25 |
guez |
3 |
|
26 |
guez |
7 |
INTEGER i, j |
27 |
guez |
3 |
|
28 |
guez |
7 |
!------------------------------------------------------------ |
29 |
guez |
3 |
|
30 |
guez |
7 |
! Calcul des latitudes et de y' |
31 |
guez |
3 |
|
32 |
guez |
7 |
DO j = 1, jjm + 1 |
33 |
|
|
rlatu(j) = fy(real(j)) |
34 |
|
|
yprimu(j) = fyprim(real(j)) |
35 |
|
|
END DO |
36 |
guez |
3 |
|
37 |
guez |
7 |
DO j = 1, jjm |
38 |
|
|
rlatv(j) = fy(real(j) + 0.5) |
39 |
|
|
rlatu1(j) = fy(real(j) + 0.25) |
40 |
|
|
rlatu2(j) = fy(real(j) + 0.75) |
41 |
guez |
3 |
|
42 |
guez |
7 |
yprimv(j) = fyprim(real(j) + 0.5) |
43 |
|
|
yprimu1(j) = fyprim(real(j) + 0.25) |
44 |
|
|
yprimu2(j) = fyprim(real(j) + 0.75) |
45 |
|
|
END DO |
46 |
guez |
3 |
|
47 |
guez |
7 |
! Calcul des longitudes et de x' |
48 |
guez |
3 |
|
49 |
guez |
7 |
DO i = 1, iim + 1 |
50 |
|
|
rlonv(i) = fx(real(i)) |
51 |
|
|
rlonu(i) = fx(real(i) + 0.5) |
52 |
|
|
rlonm025(i) = fx(real(i) - 0.25) |
53 |
|
|
rlonp025(i) = fx(real(i) + 0.25) |
54 |
guez |
3 |
|
55 |
guez |
7 |
xprimv(i) = fxprim(real(i)) |
56 |
|
|
xprimu(i) = fxprim(real(i) + 0.5) |
57 |
|
|
xprimm025(i) = fxprim(real(i) - 0.25) |
58 |
|
|
xprimp025(i) = fxprim(real(i) + 0.25) |
59 |
|
|
END DO |
60 |
guez |
3 |
|
61 |
guez |
7 |
CONTAINS |
62 |
guez |
3 |
|
63 |
guez |
7 |
! From grid/fxy_new.h, v 1.1.1.1 2004/05/19 12:53:05 |
64 |
|
|
|
65 |
|
|
REAL FUNCTION ripx(ri) |
66 |
|
|
! stretching in x |
67 |
|
|
USE comconst, ONLY : pi |
68 |
|
|
REAL, INTENT (IN) :: ri |
69 |
|
|
|
70 |
|
|
ripx = (ri - 1.) * 2 * pi / REAL(iim) |
71 |
|
|
end function ripx |
72 |
|
|
|
73 |
|
|
!****************************************************** |
74 |
|
|
|
75 |
|
|
REAL FUNCTION fx(ri) |
76 |
|
|
! stretching in x |
77 |
|
|
USE comconst, ONLY : pi |
78 |
|
|
USE serre, ONLY : alphax, pxo, transx |
79 |
|
|
REAL, INTENT (IN) :: ri |
80 |
|
|
|
81 |
|
|
fx = ripx(ri) + transx + alphax * SIN(ripx(ri) + transx - pxo) - pi |
82 |
|
|
end function fx |
83 |
|
|
|
84 |
|
|
!****************************************************** |
85 |
|
|
|
86 |
|
|
REAL FUNCTION fxprim(ri) |
87 |
|
|
! stretching in x |
88 |
|
|
USE comconst, ONLY : pi |
89 |
|
|
USE serre, ONLY : alphax, pxo, transx |
90 |
|
|
REAL, INTENT (IN) :: ri |
91 |
|
|
|
92 |
|
|
fxprim = 2 * pi / REAL(iim) * (1. + alphax * COS(ripx(ri) + transx - pxo)) |
93 |
|
|
end function fxprim |
94 |
|
|
|
95 |
|
|
!****************************************************** |
96 |
|
|
|
97 |
|
|
REAL FUNCTION bigy(rj) |
98 |
|
|
! stretching in y |
99 |
|
|
USE comconst, ONLY : pi |
100 |
|
|
REAL, INTENT (IN) :: rj |
101 |
|
|
|
102 |
|
|
bigy = 2 * (REAL(jjm + 1) - rj) * pi / jjm |
103 |
|
|
end function bigy |
104 |
|
|
|
105 |
|
|
!****************************************************** |
106 |
|
|
|
107 |
|
|
REAL FUNCTION fy(rj) |
108 |
|
|
! stretching in y |
109 |
|
|
USE comconst, ONLY : pi |
110 |
|
|
USE serre, ONLY : alphay, pyo, transy |
111 |
|
|
REAL, INTENT (IN) :: rj |
112 |
|
|
|
113 |
|
|
fy = (bigy(rj) + transy + alphay * SIN(bigy(rj) + transy - pyo)) / 2 & |
114 |
|
|
- pi / 2 |
115 |
|
|
end function fy |
116 |
|
|
|
117 |
|
|
!****************************************************** |
118 |
|
|
|
119 |
|
|
REAL FUNCTION fyprim(rj) |
120 |
|
|
! stretching in y |
121 |
|
|
USE comconst, ONLY : pi |
122 |
|
|
USE serre, ONLY : alphay, pyo, transy |
123 |
|
|
REAL, INTENT (IN) :: rj |
124 |
|
|
|
125 |
|
|
fyprim = (pi / jjm) * (1. + alphay * COS(bigy(rj) + transy - pyo)) |
126 |
|
|
end function fyprim |
127 |
|
|
|
128 |
|
|
END SUBROUTINE fxy |