15 |
! Il vaut mieux avoir : grossismx \times dzoom < pi |
! Il vaut mieux avoir : grossismx \times dzoom < pi |
16 |
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17 |
! Le premier point scalaire pour une grille regulière (grossismx = |
! Le premier point scalaire pour une grille regulière (grossismx = |
18 |
! 1., taux=0., clon=0.) est à - 180 degrés. |
! 1., taux = 0., clon = 0.) est à - 180 degrés. |
19 |
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20 |
USE dimens_m, ONLY: iim |
USE dimens_m, ONLY: iim |
21 |
use fxhyp_loop_ik_m, only: fxhyp_loop_ik, nmax |
use dynetat0_m, only: clon, grossismx, dzoomx, taux |
22 |
use nr_util, only: pi, pi_d, twopi_d, arth |
use invert_zoom_x_m, only: invert_zoom_x, nmax |
23 |
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use nr_util, only: pi, pi_d, twopi, twopi_d, arth |
24 |
use principal_cshift_m, only: principal_cshift |
use principal_cshift_m, only: principal_cshift |
25 |
use serre, only: clon, grossismx, dzoomx, taux |
use tanh_cautious_m, only: tanh_cautious |
26 |
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27 |
REAL, intent(out):: xprimm025(:), rlonv(:), xprimv(:) ! (iim + 1) |
REAL, intent(out):: xprimm025(:), rlonv(:), xprimv(:) ! (iim + 1) |
28 |
real, intent(out):: rlonu(:), xprimu(:), xprimp025(:) ! (iim + 1) |
real, intent(out):: rlonu(:), xprimu(:), xprimp025(:) ! (iim + 1) |
29 |
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30 |
! Local: |
! Local: |
31 |
real rlonm025(iim + 1), rlonp025(iim + 1) |
real rlonm025(iim + 1), rlonp025(iim + 1), d_rlonv(iim) |
32 |
REAL dzoom |
REAL dzoom, step |
33 |
real d_rlonv(iim) |
DOUBLE PRECISION, dimension(0:nmax):: xtild, fhyp, G, Xf |
34 |
DOUBLE PRECISION xtild(0:2 * nmax) |
DOUBLE PRECISION ffdx, beta |
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DOUBLE PRECISION fhyp(nmax:2 * nmax), ffdx, beta, Xprimt(0:2 * nmax) |
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DOUBLE PRECISION Xf(0:2 * nmax), xxpr(2 * nmax) |
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DOUBLE PRECISION xzoom, fa, fb |
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35 |
INTEGER i, is2 |
INTEGER i, is2 |
36 |
DOUBLE PRECISION xmoy, fxm |
DOUBLE PRECISION xxpr(nmax - 1), xmoy(nmax), fxm(nmax) |
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DOUBLE PRECISION decalx |
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37 |
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!---------------------------------------------------------------------- |
!---------------------------------------------------------------------- |
39 |
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40 |
print *, "Call sequence information: fxhyp" |
print *, "Call sequence information: fxhyp" |
41 |
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42 |
dzoom = dzoomx * twopi_d |
test_grossismx: if (grossismx == 1.) then |
43 |
xtild = arth(- pi_d, pi_d / nmax, 2 * nmax + 1) |
step = twopi / iim |
44 |
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45 |
! Compute fhyp: |
xprimm025(:iim) = step |
46 |
DO i = nmax, 2 * nmax |
xprimp025(:iim) = step |
47 |
fa = taux * (dzoom / 2. - xtild(i)) |
xprimv(:iim) = step |
48 |
fb = xtild(i) * (pi_d - xtild(i)) |
xprimu(:iim) = step |
49 |
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50 |
IF (200. * fb < - fa) THEN |
rlonv(:iim) = arth(- pi + clon, step, iim) |
51 |
fhyp(i) = - 1. |
rlonm025(:iim) = rlonv(:iim) - 0.25 * step |
52 |
ELSE IF (200. * fb < fa) THEN |
rlonp025(:iim) = rlonv(:iim) + 0.25 * step |
53 |
fhyp(i) = 1. |
rlonu(:iim) = rlonv(:iim) + 0.5 * step |
54 |
ELSE |
else test_grossismx |
55 |
IF (ABS(fa) < 1e-13 .AND. ABS(fb) < 1e-13) THEN |
dzoom = dzoomx * twopi_d |
56 |
IF (200. * fb + fa < 1e-10) THEN |
xtild = arth(0d0, pi_d / nmax, nmax + 1) |
57 |
fhyp(i) = - 1. |
forall (i = 1:nmax) xmoy(i) = 0.5d0 * (xtild(i-1) + xtild(i)) |
58 |
ELSE IF (200. * fb - fa < 1e-10) THEN |
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59 |
fhyp(i) = 1. |
! Compute fhyp: |
60 |
END IF |
fhyp(1:nmax - 1) = tanh_cautious(taux * (dzoom / 2. & |
61 |
ELSE |
- xtild(1:nmax - 1)), xtild(1:nmax - 1) & |
62 |
fhyp(i) = TANH(fa / fb) |
* (pi_d - xtild(1:nmax - 1))) |
63 |
END IF |
fhyp(0) = 1d0 |
64 |
END IF |
fhyp(nmax) = -1d0 |
65 |
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66 |
IF (xtild(i) == 0.) fhyp(i) = 1. |
fxm = tanh_cautious(taux * (dzoom / 2. - xmoy), xmoy * (pi_d - xmoy)) |
67 |
IF (xtild(i) == pi_d) fhyp(i) = -1. |
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68 |
END DO |
! Calcul de beta |
69 |
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70 |
! Calcul de beta |
ffdx = 0. |
71 |
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72 |
ffdx = 0. |
DO i = 1, nmax |
73 |
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ffdx = ffdx + fxm(i) * (xtild(i) - xtild(i-1)) |
74 |
DO i = nmax + 1, 2 * nmax |
END DO |
75 |
xmoy = 0.5 * (xtild(i-1) + xtild(i)) |
|
76 |
fa = taux * (dzoom / 2. - xmoy) |
print *, "ffdx = ", ffdx |
77 |
fb = xmoy * (pi_d - xmoy) |
beta = (pi_d - grossismx * ffdx) / (pi_d - ffdx) |
78 |
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print *, "beta = ", beta |
79 |
IF (200. * fb < - fa) THEN |
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80 |
fxm = - 1. |
IF (2. * beta - grossismx <= 0.) THEN |
81 |
ELSE IF (200. * fb < fa) THEN |
print *, 'Bad choice of grossismx, taux, dzoomx.' |
82 |
fxm = 1. |
print *, 'Decrease dzoomx or grossismx.' |
83 |
ELSE |
STOP 1 |
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IF (ABS(fa) < 1e-13 .AND. ABS(fb) < 1e-13) THEN |
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IF (200. * fb + fa < 1e-10) THEN |
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fxm = - 1. |
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ELSE IF (200. * fb - fa < 1e-10) THEN |
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fxm = 1. |
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END IF |
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ELSE |
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fxm = TANH(fa / fb) |
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END IF |
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84 |
END IF |
END IF |
85 |
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86 |
IF (xmoy == 0.) fxm = 1. |
G = beta + (grossismx - beta) * fhyp |
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IF (xmoy == pi_d) fxm = -1. |
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87 |
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88 |
ffdx = ffdx + fxm * (xtild(i) - xtild(i-1)) |
! Calcul de Xf |
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END DO |
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89 |
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90 |
print *, "ffdx = ", ffdx |
xxpr = beta + (grossismx - beta) * fxm(:nmax - 1) |
91 |
beta = (grossismx * ffdx - pi_d) / (ffdx - pi_d) |
Xf(0) = 0d0 |
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print *, "beta = ", beta |
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IF (2. * beta - grossismx <= 0.) THEN |
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print *, 'Bad choice of grossismx, taux, dzoomx.' |
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print *, 'Decrease dzoomx or grossismx.' |
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STOP 1 |
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END IF |
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! calcul de Xprimt |
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Xprimt(nmax:2 * nmax) = beta + (grossismx - beta) * fhyp |
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xprimt(:nmax - 1) = xprimt(2 * nmax:nmax + 1:- 1) |
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! Calcul de Xf |
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DO i = nmax + 1, 2 * nmax |
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xmoy = 0.5 * (xtild(i-1) + xtild(i)) |
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fa = taux * (dzoom / 2. - xmoy) |
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fb = xmoy * (pi_d - xmoy) |
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IF (200. * fb < - fa) THEN |
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fxm = - 1. |
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ELSE IF (200. * fb < fa) THEN |
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fxm = 1. |
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ELSE |
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fxm = TANH(fa / fb) |
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END IF |
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IF (xmoy == 0.) fxm = 1. |
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IF (xmoy == pi_d) fxm = -1. |
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xxpr(i) = beta + (grossismx - beta) * fxm |
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END DO |
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xxpr(:nmax) = xxpr(2 * nmax:nmax + 1:- 1) |
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Xf(0) = - pi_d |
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DO i=1, 2 * nmax - 1 |
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Xf(i) = Xf(i-1) + xxpr(i) * (xtild(i) - xtild(i-1)) |
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END DO |
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Xf(2 * nmax) = pi_d |
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IF (grossismx == 1.) THEN |
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decalx = 1d0 |
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else |
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decalx = 0.75d0 |
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END IF |
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92 |
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93 |
xzoom = clon * pi_d / 180d0 |
DO i = 1, nmax - 1 |
94 |
call fxhyp_loop_ik(1, decalx, xf, xtild, Xprimt, xzoom, rlonm025(:iim), & |
Xf(i) = Xf(i-1) + xxpr(i) * (xtild(i) - xtild(i-1)) |
95 |
xprimm025(:iim), xuv = - 0.25d0) |
END DO |
96 |
call fxhyp_loop_ik(2, decalx, xf, xtild, Xprimt, xzoom, rlonv(:iim), & |
|
97 |
xprimv(:iim), xuv = 0d0) |
Xf(nmax) = pi_d |
98 |
call fxhyp_loop_ik(3, decalx, xf, xtild, Xprimt, xzoom, rlonu(:iim), & |
|
99 |
xprimu(:iim), xuv = 0.5d0) |
call invert_zoom_x(xf, xtild, G, rlonm025(:iim), xprimm025(:iim), & |
100 |
call fxhyp_loop_ik(4, decalx, xf, xtild, Xprimt, xzoom, rlonp025(:iim), & |
xuv = - 0.25d0) |
101 |
xprimp025(:iim), xuv = 0.25d0) |
call invert_zoom_x(xf, xtild, G, rlonv(:iim), xprimv(:iim), xuv = 0d0) |
102 |
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call invert_zoom_x(xf, xtild, G, rlonu(:iim), xprimu(:iim), xuv = 0.5d0) |
103 |
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call invert_zoom_x(xf, xtild, G, rlonp025(:iim), xprimp025(:iim), & |
104 |
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xuv = 0.25d0) |
105 |
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end if test_grossismx |
106 |
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107 |
is2 = 0 |
is2 = 0 |
108 |
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142 |
print *, "Minimum longitude step:", MINval(d_rlonv) * 180. / pi, "degrees" |
print *, "Minimum longitude step:", MINval(d_rlonv) * 180. / pi, "degrees" |
143 |
print *, "Maximum longitude step:", MAXval(d_rlonv) * 180. / pi, "degrees" |
print *, "Maximum longitude step:", MAXval(d_rlonv) * 180. / pi, "degrees" |
144 |
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145 |
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! Check that rlonm025 <= rlonv <= rlonp025 <= rlonu: |
146 |
DO i = 1, iim + 1 |
DO i = 1, iim + 1 |
147 |
IF (rlonp025(i) < rlonv(i)) THEN |
IF (rlonp025(i) < rlonv(i)) THEN |
148 |
print *, 'rlonp025(', i, ') = ', rlonp025(i) |
print *, 'rlonp025(', i, ') = ', rlonp025(i) |