32 |
USE dimens_m, ONLY : iim, jjm |
USE dimens_m, ONLY : iim, jjm |
33 |
USE dynetat0_m, ONLY : rlatu, rlatv, xprimu, grossismx |
USE dynetat0_m, ONLY : rlatu, rlatv, xprimu, grossismx |
34 |
use inifgn_m, only: inifgn, eignfnu, eignfnv |
use inifgn_m, only: inifgn, eignfnu, eignfnv |
35 |
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use jumble, only: new_unit |
36 |
use nr_util, only: pi |
use nr_util, only: pi |
37 |
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! Local: |
! Local: |
39 |
REAL dlatu(jjm) |
REAL dlatu(jjm) |
40 |
REAL rlamda(2: iim) |
REAL rlamda(2: iim) |
41 |
real eignvl(iim) ! eigenvalues |
real eignvl(iim) ! eigenvalues |
42 |
REAL lamdamax, cof |
REAL cof |
43 |
INTEGER i, j, k, kf |
INTEGER i, j, k, kf, unit |
44 |
REAL dymin, colat0 |
REAL colat0 |
45 |
REAL eignft(iim, iim), coff |
REAL eignft(iim, iim), coff |
46 |
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47 |
! Filtering coefficients (lamda_max * cos(rlat) / lamda): |
! Filtering coefficients (lamda_max * cos(rlat) / lamda): |
57 |
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58 |
CALL inifgn(eignvl) |
CALL inifgn(eignvl) |
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60 |
PRINT *, 'EIGNVL ' |
call new_unit(unit) |
61 |
PRINT "(1X, 5E13.6)", eignvl |
open(unit, file = "eignvl.txt", status = "replace", action = "write") |
62 |
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write(unit, fmt = *) EIGNVL |
63 |
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close(unit) |
64 |
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65 |
! compute eigenvalues and eigenfunctions |
! compute eigenvalues and eigenfunctions |
66 |
! compute the filtering coefficients for scalar lines and |
! compute the filtering coefficients for scalar lines and |
71 |
! is set equal to zero for the regular grid case |
! is set equal to zero for the regular grid case |
72 |
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73 |
! Calcul de colat0 |
! Calcul de colat0 |
74 |
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forall (j = 1:jjm) dlatu(j) = rlatu(j) - rlatu(j + 1) |
75 |
DO j = 1, jjm |
colat0 = min(0.5, minval(dlatu) / minval(xprimu(:iim))) |
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dlatu(j) = rlatu(j) - rlatu(j + 1) |
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END DO |
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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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END DO |
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colat0 = min(0.5, dymin / minval(xprimu(:iim))) |
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76 |
PRINT *, 'colat0 = ', colat0 |
PRINT *, 'colat0 = ', colat0 |
77 |
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78 |
lamdamax = iim / (pi * colat0 / grossismx) |
rlamda = iim / (pi * colat0 / grossismx) / sqrt(abs(eignvl(2: iim))) |
79 |
rlamda = lamdamax / sqrt(abs(eignvl(2: iim))) |
coefilu = 0. |
80 |
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coefilv = 0. |
81 |
DO j = 1, jjm |
coefilu2 = 0. |
82 |
DO i = 1, iim |
coefilv2 = 0. |
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coefilu(i, j) = 0. |
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coefilv(i, j) = 0. |
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coefilu2(i, j) = 0. |
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coefilv2(i, j) = 0. |
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end DO |
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END DO |
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83 |
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84 |
! Determination de jfiltnu, jfiltnv, jfiltsu, jfiltsv |
! Determination de jfiltnu, jfiltnv, jfiltsu, jfiltsv |
85 |
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PRINT *, 'TRUNCATION AT ', iim |
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86 |
DO j = 2, jjm / 2 + 1 |
DO j = 2, jjm / 2 + 1 |
87 |
IF (cos(rlatu(j)) / colat0 < 1. & |
IF (cos(rlatu(j)) / colat0 < 1. & |
88 |
.and. rlamda(iim) * cos(rlatu(j)) < 1.) jfiltnu = j |
.and. rlamda(iim) * cos(rlatu(j)) < 1.) jfiltnu = j |