/[lmdze]/trunk/libf/dyn3d/startdyn.f90
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Contents of /trunk/libf/dyn3d/startdyn.f90

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Revision 36 - (show annotations)
Thu Dec 2 17:11:04 2010 UTC (13 years, 5 months ago) by guez
File size: 5996 byte(s)
Now using the library "NR_util".

1 MODULE startdyn
2
3 ! From startvar.F, version 1.4
4 ! 2006/01/27 15:14:22 Fairhead
5
6 IMPLICIT NONE
7
8 private
9 public start_init_dyn, start_inter_3d
10
11 INTEGER fid_dyn, iml_dyn, jml_dyn, llm_dyn, ttm_dyn
12
13 REAL, ALLOCATABLE:: lon_ini(:), lat_ini(:)
14 ! (longitude and latitude from the input file, converted to rad)
15
16 real, ALLOCATABLE:: levdyn_ini(:)
17
18 CONTAINS
19
20 SUBROUTINE start_init_dyn(tsol_2d, psol)
21
22 ! Host associated variables appearing and modified in this procedure :
23 ! iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn, lon_ini, lat_ini, levdyn_ini
24
25 USE flincom, only: flininfo, flinopen_nozoom
26 use flinget_m, only: flinget
27 use comgeom, only: aire_2d, apoln, apols
28 use conf_dat2d_m, only: conf_dat2d
29 use inter_barxy_m, only: inter_barxy
30 use comconst, only: pi
31 use comgeom, only: rlonu, rlatv
32 use dimens_m, only: iim, jjm
33 use gr_int_dyn_m, only: gr_int_dyn
34 use start_init_orog_m, only: phis
35 use start_init_phys_m, only: start_init_phys
36 use nr_util, only: assert
37
38 REAL, intent(out):: tsol_2d(:, :)
39 REAL, intent(out):: psol(:, :) ! surface pressure, in Pa
40
41 ! Local:
42
43 REAL date, dt
44 INTEGER itau(1)
45 INTEGER i, j
46 REAL, ALLOCATABLE:: lon_rad(:), lat_rad(:)
47
48 REAL, ALLOCATABLE:: lon_dyn(:, :), lat_dyn(:, :)
49 ! (longitude and latitude from the input file, in rad or degrees)
50
51 REAL, ALLOCATABLE:: var_ana(:, :)
52 real z(iim + 1, jjm + 1)
53 real tmp_var(iim, jjm + 1)
54
55 !--------------------------
56
57 print *, "Call sequence information: start_init_dyn"
58 call assert((/size(tsol_2d, 1), size(psol, 1)/) == iim + 1, &
59 "start_init_phys size 1")
60 call assert((/size(tsol_2d, 2), size(psol, 2)/) == jjm + 1, &
61 "start_init_phys size 2")
62 CALL flininfo('ECDYN.nc', iml_dyn, jml_dyn, llm_dyn, ttm_dyn, fid_dyn)
63 print *, "iml_dyn = ", iml_dyn, ", jml_dyn = ", jml_dyn, &
64 ", llm_dyn = ", llm_dyn, ", ttm_dyn = ", ttm_dyn
65
66 ALLOCATE(lat_dyn(iml_dyn, jml_dyn))
67 ALLOCATE(lon_dyn(iml_dyn, jml_dyn))
68 ALLOCATE(levdyn_ini(llm_dyn))
69
70 CALL flinopen_nozoom(iml_dyn, jml_dyn, llm_dyn, &
71 lon_dyn, lat_dyn, levdyn_ini, ttm_dyn, itau, date, dt, fid_dyn)
72
73 ALLOCATE(var_ana(iml_dyn, jml_dyn))
74 ALLOCATE(lon_rad(iml_dyn))
75 ALLOCATE(lon_ini(iml_dyn))
76
77 IF (MAXVAL(lon_dyn) > pi) THEN
78 ! Assume "lon_dyn" is in degrees
79 lon_ini = lon_dyn(:, 1) * pi / 180.
80 ELSE
81 lon_ini = lon_dyn(:, 1)
82 ENDIF
83
84 ALLOCATE(lat_rad(jml_dyn))
85 ALLOCATE(lat_ini(jml_dyn))
86
87 IF (MAXVAL(lat_dyn) > pi) THEN
88 lat_ini = lat_dyn(1, :) * pi / 180.
89 ELSE
90 lat_ini = lat_dyn(1, :)
91 ENDIF
92
93 ! 'Z': Surface geopotential
94 CALL flinget(fid_dyn, 'Z', iml_dyn, jml_dyn, 0, ttm_dyn, 1, 1, var_ana)
95 CALL conf_dat2d(lon_ini, lat_ini, lon_rad, lat_rad, var_ana)
96 CALL inter_barxy(lon_rad, lat_rad(:jml_dyn -1), var_ana, rlonu(:iim), &
97 rlatv, tmp_var)
98 z = gr_int_dyn(tmp_var)
99
100 ! 'SP': Surface pressure
101 CALL flinget(fid_dyn, 'SP', iml_dyn, jml_dyn, 0, ttm_dyn, 1, 1, var_ana)
102 CALL conf_dat2d(lon_ini, lat_ini, lon_rad, lat_rad, var_ana)
103 CALL inter_barxy(lon_rad, lat_rad(:jml_dyn -1), var_ana, rlonu(:iim), &
104 rlatv, tmp_var)
105 psol = gr_int_dyn(tmp_var)
106 CALL start_init_phys(tsol_2d)
107
108 psol(:iim, :) = psol(:iim, :) &
109 * (1. + (z(:iim, :) - phis(:iim, :)) / 287. / tsol_2d(:iim, :))
110 psol(iim + 1, :) = psol(1, :)
111
112 psol(:, 1) = SUM(aire_2d(:iim, 1) * psol(:iim, 1)) / apoln
113 psol(:, jjm + 1) = SUM(aire_2d(:iim, jjm + 1) * psol(:iim, jjm + 1)) &
114 / apols
115
116 END SUBROUTINE start_init_dyn
117
118 !********************************
119
120 subroutine start_inter_3d(varname, lon_in2, lat_in2, pls_in, var3d)
121
122 ! This procedure gets a 3D variable from a file and interpolates it.
123
124 use flinget_m, only: flinget
125 use nr_util, only: assert_eq
126 use numer_rec, only: spline, splint
127 use inter_barxy_m, only: inter_barxy
128 use gr_int_dyn_m, only: gr_int_dyn
129 use conf_dat3d_m, only: conf_dat3d
130
131 CHARACTER(len=*), intent(in):: varname
132 REAL, intent(in):: lon_in2(:) ! (iml)
133 REAL, intent(in):: lat_in2(:)
134 REAL, intent(in):: pls_in(:, :, :) ! (iml, jml, lml)
135 REAL, intent(out):: var3d(:, :, :) ! (iml, jml, lml)
136
137 ! LOCAL:
138 INTEGER iml, jml, lml
139 INTEGER ii, ij, il
140 REAL lon_rad(iml_dyn), lat_rad(jml_dyn)
141 REAL lev_dyn(llm_dyn)
142 REAL var_tmp2d(size(lon_in2)-1, size(pls_in, 2))
143 real var_tmp3d(size(lon_in2), size(pls_in, 2), llm_dyn)
144 REAL ax(llm_dyn), ay(llm_dyn), yder(llm_dyn)
145 real var_ana3d(iml_dyn, jml_dyn, llm_dyn)
146
147 !--------------------------------
148
149 print *, "Call sequence information: start_inter_3d"
150
151 iml = assert_eq(size(pls_in, 1), size(lon_in2), size(var3d, 1), &
152 "start_inter_3d iml")
153 jml = assert_eq(size(pls_in, 2), size(var3d, 2), "start_inter_3d jml")
154 lml = assert_eq(size(pls_in, 3), size(var3d, 3), "start_inter_3d lml")
155
156 print *, "iml = ", iml, ", jml = ", jml
157 print *, "varname = ", varname
158 print *, 'Going into flinget to extract the 3D field.'
159 CALL flinget(fid_dyn, varname, iml_dyn, jml_dyn, llm_dyn, ttm_dyn, 1, 1, &
160 var_ana3d)
161 CALL conf_dat3d(lon_ini, lat_ini, levdyn_ini, lon_rad, lat_rad, lev_dyn, &
162 var_ana3d)
163
164 DO il = 1, llm_dyn
165 CALL inter_barxy(lon_rad, lat_rad(:jml_dyn-1), var_ana3d(:, :, il), &
166 lon_in2(:iml-1), lat_in2, var_tmp2d)
167 var_tmp3d(:, :, il) = gr_int_dyn(var_tmp2d)
168 ENDDO
169
170 ! Pour l'interpolation verticale, on interpole du haut de l'atmosphère
171 ! vers le sol :
172 ax = lev_dyn(llm_dyn:1:-1)
173 DO ij=1, jml
174 DO ii=1, iml-1
175 ay = var_tmp3d(ii, ij, llm_dyn:1:-1)
176 yder = SPLINE(ax, ay)
177 do il=1, lml
178 var3d(ii, ij, il) = SPLINT(ax, ay, yder, pls_in(ii, ij, il))
179 END do
180 ENDDO
181 ENDDO
182 var3d(iml, :, :) = var3d(1, :, :)
183
184 END subroutine start_inter_3d
185
186 END MODULE startdyn

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