1 | MODULE getlandseamask |
---|
2 | ! |
---|
3 | !================================================================================================================================ |
---|
4 | !! MODULE : getlandseamask |
---|
5 | !! |
---|
6 | !> BRIEF This module contains a few methods in order to build a land surface mask which can serve |
---|
7 | !! to test the routing and its ability to build a river network. |
---|
8 | !! |
---|
9 | !! DESCRIPTION : None |
---|
10 | !! |
---|
11 | !! RECENT CHANGE(S): None |
---|
12 | !! |
---|
13 | !! MAIN OUTPUT VARIABLE(S): |
---|
14 | !! |
---|
15 | !! REFERENCES : None |
---|
16 | !! |
---|
17 | !! FLOWCHART : This module has 2 possible modes for building the land/sea mask : |
---|
18 | !! TOPOFILE : This configuration option contains a file name of the orography file |
---|
19 | !! which will be used in order to build the land/sea mask. |
---|
20 | !! IIM_LON, JJM_lon : the number of points the grid should have in longitude and |
---|
21 | !! latitude. This is only used when we build the mask based on orography. |
---|
22 | !! Should these parameters not be provided, then the gird of the orography |
---|
23 | !! file is used. |
---|
24 | !! CONTFRACFILE :: File name in which we will find variable "Contfrac". This land/sea mask will be |
---|
25 | !! used with the associated lat/lon grid. |
---|
26 | !! WEST_EAST, SOUTH_NORTH : The zoom to be performed on the grid so as to retain only this window |
---|
27 | !! of the land-sea mask. |
---|
28 | !! \n |
---|
29 | !_================================================================================================================================ |
---|
30 | |
---|
31 | USE ioipsl_para |
---|
32 | USE mod_orchidee_para |
---|
33 | USE control |
---|
34 | USE constantes_soil_var |
---|
35 | USE constantes_var |
---|
36 | USE constantes |
---|
37 | |
---|
38 | USE netcdf |
---|
39 | |
---|
40 | IMPLICIT NONE |
---|
41 | |
---|
42 | PRIVATE |
---|
43 | PUBLIC :: getlandseamask_init, getlandseamask_read |
---|
44 | |
---|
45 | INTEGER(i_std), SAVE :: iim, jjm, nbland |
---|
46 | REAL(r_std), SAVE, ALLOCATABLE, DIMENSION(:,:) :: lon, lat |
---|
47 | REAL(r_std), SAVE, ALLOCATABLE, DIMENSION(:,:) :: contfrac, orog |
---|
48 | |
---|
49 | CONTAINS |
---|
50 | !================================================================================================================================ |
---|
51 | !! SUBROUTINE : getlandseamask_init |
---|
52 | !! |
---|
53 | !> BRIEF Builds the land/sea mask and returns its size to the calling program. |
---|
54 | !! |
---|
55 | !! DESCRIPTION : None |
---|
56 | !! |
---|
57 | !! RECENT CHANGE(S): None |
---|
58 | !! |
---|
59 | !! MAIN OUTPUT VARIABLE(S): |
---|
60 | !! |
---|
61 | !! REFERENCES : None |
---|
62 | !! |
---|
63 | !! FLOWCHART : None |
---|
64 | !! \n |
---|
65 | !_================================================================================================================================ |
---|
66 | SUBROUTINE getlandseamask_init(iim_out, jjm_out, nbland_out) |
---|
67 | ! |
---|
68 | ! ARGUMENTS |
---|
69 | ! |
---|
70 | INTEGER(i_std), INTENT(out) :: iim_out, jjm_out, nbland_out |
---|
71 | ! |
---|
72 | ! LOCAL |
---|
73 | ! |
---|
74 | CHARACTER(LEN=120) :: filename !! File name for topography (var: ROSE in "etopo20.nc") |
---|
75 | CHARACTER(LEN=120) :: contfracfile !! filename for contfrac |
---|
76 | INTEGER(i_std) :: iim_full, jjm_full !! Lon/Lat dimensions for ROSE in etopo20.nc |
---|
77 | REAL(r_std), ALLOCATABLE, DIMENSION (:,:) :: lon_full, lat_full !! Lon/Lat array for ROSE |
---|
78 | REAL(r_std), ALLOCATABLE, DIMENSION (:,:) :: etopo, contfrac_full !! Array for reading ROSE in etopo20.nc |
---|
79 | INTEGER(i_std), DIMENSION(1) :: ibeg, iend |
---|
80 | INTEGER(i_std), DIMENSION(1) :: jbeg, jend |
---|
81 | INTEGER(i_std) :: fid, i, j |
---|
82 | REAL(r_std) :: dx, dy |
---|
83 | ! |
---|
84 | REAL(r_std), DIMENSION(2) :: zoom_lon, zoom_lat !! For crop region when reading |
---|
85 | ! |
---|
86 | LOGICAL :: buildcontfrac=.FALSE. |
---|
87 | ! |
---|
88 | ! Read the full topography which we will use to get the land-see mask for all resolutions. |
---|
89 | ! |
---|
90 | !Config Key = TOPOFILE |
---|
91 | !Config Desc = File containing high resolution topographic informations |
---|
92 | !Config If = |
---|
93 | !Config Def = etopo20.nc |
---|
94 | !Config Help = This needs to be a netCDF file. |
---|
95 | !Config Units = [-] |
---|
96 | !- |
---|
97 | filename = 'NONE' |
---|
98 | CALL getin('TOPOFILE', filename) |
---|
99 | WRITE(*,*) "TOPOFILE = ", filename |
---|
100 | ! |
---|
101 | !Config Key = CONTFRACFILE |
---|
102 | !Config Desc = File containing a contfrac variable as defined in ORCHIDEE. |
---|
103 | !Config If = |
---|
104 | !Config Def = NONE |
---|
105 | !Config Help = This needs to be a netCDF file and can be any history file ORCHIDEE |
---|
106 | ! has produced ina previous simulation. |
---|
107 | !Config Units = [-] |
---|
108 | !- |
---|
109 | contfracfile = 'NONE' |
---|
110 | CALL getin('CONTFRACFILE', contfracfile) |
---|
111 | WRITE(*,*) "CONTFRACFILE = ", contfracfile |
---|
112 | ! |
---|
113 | ! Initialize Orchidee parameter and calendar |
---|
114 | ! |
---|
115 | IF ( INDEX(filename,"NONE") <= 0 ) THEN |
---|
116 | IF ( is_root_prc) THEN |
---|
117 | CALL topo_getsize(filename, iim_full, jjm_full) |
---|
118 | ! |
---|
119 | ALLOCATE(lon_full(iim_full,jjm_full),lat_full(iim_full,jjm_full)) |
---|
120 | ALLOCATE(etopo(iim_full,jjm_full)) |
---|
121 | ! |
---|
122 | CALL topo_getvar(filename, iim_full, jjm_full, lon_full, lat_full, etopo) |
---|
123 | ! |
---|
124 | WRITE(*,*) MINVAL(lon_full), ' < LON_FULL < ', MAXVAL(lon_full) |
---|
125 | WRITE(*,*) MINVAL(lat_full), ' < LAT_FULL < ', MAXVAL(lat_full) |
---|
126 | WRITE(*,*) 'ETOPO :', MINVAL(etopo), MAXVAL(etopo) |
---|
127 | ! |
---|
128 | buildcontfrac=.TRUE. |
---|
129 | ! |
---|
130 | ENDIF |
---|
131 | ELSE IF ( INDEX( contfracfile,"NONE") <= 0 ) THEN |
---|
132 | IF ( is_root_prc) THEN |
---|
133 | ! |
---|
134 | ! Read lon, lat and contfrac from a netCDF file generated by ORCHIDEE |
---|
135 | ! |
---|
136 | CALL opencontfrac(contfracfile, iim_full, jjm_full, fid) |
---|
137 | ! |
---|
138 | ALLOCATE(lon_full(iim_full,jjm_full), lat_full(iim_full,jjm_full), contfrac_full(iim_full,jjm_full)) |
---|
139 | CALL readcontfrac(fid, contfracfile, iim_full, jjm_full, lon_full, lat_full, contfrac_full) |
---|
140 | ! |
---|
141 | buildcontfrac=.FALSE. |
---|
142 | ! |
---|
143 | ENDIF |
---|
144 | ELSE |
---|
145 | WRITE(*,*) "Neither a orography nore a contfrac file was provided" |
---|
146 | WRITE(*,*) "CONTFRACFILE = ", contfracfile |
---|
147 | write(*,*) "TOPOFILE = ", filename |
---|
148 | ENDIF |
---|
149 | ! |
---|
150 | !- |
---|
151 | !- Define the zoom |
---|
152 | !- |
---|
153 | zoom_lon=(/-180,180/) |
---|
154 | zoom_lat=(/-90,90/) |
---|
155 | ! |
---|
156 | !Config Key = LIMIT_WEST |
---|
157 | !Config Desc = Western limit of region |
---|
158 | !Config If = [-] |
---|
159 | !Config Def = -180. |
---|
160 | !Config Help = Western limit of the region we are |
---|
161 | !Config interested in. Between -180 and +180 degrees |
---|
162 | !Config The model will use the smalest regions from |
---|
163 | !Config region specified here and the one of the forcing file. |
---|
164 | !Config Units = [Degrees] |
---|
165 | !- |
---|
166 | CALL getin_p('LIMIT_WEST',zoom_lon(1)) |
---|
167 | !- |
---|
168 | !Config Key = LIMIT_EAST |
---|
169 | !Config Desc = Eastern limit of region |
---|
170 | !Config If = [-] |
---|
171 | !Config Def = 180. |
---|
172 | !Config Help = Eastern limit of the region we are |
---|
173 | !Config interested in. Between -180 and +180 degrees |
---|
174 | !Config The model will use the smalest regions from |
---|
175 | !Config region specified here and the one of the forcing file. |
---|
176 | !Config Units = [Degrees] |
---|
177 | !- |
---|
178 | CALL getin_p('LIMIT_EAST',zoom_lon(2)) |
---|
179 | !- |
---|
180 | !Config Key = LIMIT_NORTH |
---|
181 | !Config Desc = Northern limit of region |
---|
182 | !Config If = [-] |
---|
183 | !Config Def = 90. |
---|
184 | !Config Help = Northern limit of the region we are |
---|
185 | !Config interested in. Between +90 and -90 degrees |
---|
186 | !Config The model will use the smalest regions from |
---|
187 | !Config region specified here and the one of the forcing file. |
---|
188 | !Config Units = [Degrees] |
---|
189 | !- |
---|
190 | CALL getin_p('LIMIT_NORTH',zoom_lat(2)) |
---|
191 | !- |
---|
192 | !Config Key = LIMIT_SOUTH |
---|
193 | !Config Desc = Southern limit of region |
---|
194 | !Config If = [-] |
---|
195 | !Config Def = -90. |
---|
196 | !Config Help = Southern limit of the region we are |
---|
197 | !Config interested in. Between 90 and -90 degrees |
---|
198 | !Config The model will use the smalest regions from |
---|
199 | !Config region specified here and the one of the forcing file. |
---|
200 | !Config Units = [Degrees] |
---|
201 | !- |
---|
202 | CALL getin_p('LIMIT_SOUTH',zoom_lat(1)) |
---|
203 | IF ( (zoom_lon(1)+180 < EPSILON(zoom_lon(1))) .AND. (zoom_lon(2)-180 < EPSILON(zoom_lon(2))) .AND.& |
---|
204 | &(zoom_lat(1)+90 < EPSILON(zoom_lat(1))) .AND. (zoom_lat(2)-90 < EPSILON(zoom_lat(2))) ) THEN |
---|
205 | ! |
---|
206 | !Config Key = WEST_EAST |
---|
207 | !Config Desc = Longitude interval to use from the forcing data |
---|
208 | !Config If = [-] |
---|
209 | !Config Def = -180, 180 |
---|
210 | !Config Help = This function allows to zoom into the forcing data |
---|
211 | !Config Units = [degrees east] |
---|
212 | !- |
---|
213 | CALL getin('WEST_EAST', zoom_lon) |
---|
214 | ! |
---|
215 | !Config Key = SOUTH_NORTH |
---|
216 | !Config Desc = Latitude interval to use from the forcing data |
---|
217 | !Config If = [-] |
---|
218 | !Config Def = -90, 90 |
---|
219 | !Config Help = This function allows to zoom into the forcing data |
---|
220 | !Config Units = [degrees north] |
---|
221 | !- |
---|
222 | CALL getin('SOUTH_NORTH', zoom_lat) |
---|
223 | ENDIF |
---|
224 | ! |
---|
225 | ! Get the finer coarser grid |
---|
226 | ! |
---|
227 | ! |
---|
228 | ! We see if the user has specified the resolution, in number of |
---|
229 | ! points he wishes to use. |
---|
230 | ! |
---|
231 | IF ( buildcontfrac ) THEN |
---|
232 | IF ( is_root_prc) THEN |
---|
233 | iim=-1 |
---|
234 | jjm=-1 |
---|
235 | !Config Key = IIM_LON |
---|
236 | !Config Desc = Number of points in longitude |
---|
237 | !Config If = [-] |
---|
238 | !Config Def = -1 |
---|
239 | !Config Help = This allows to select the resolution at which the land/sea mask should be built. |
---|
240 | !Config Units = - |
---|
241 | CALL getin('IIM_LON', iim) |
---|
242 | !Config Key = IIM_LAT |
---|
243 | !Config Desc = Number of points in latitude |
---|
244 | !Config If = [-] |
---|
245 | !Config Def = -1 |
---|
246 | !Config Help = This allows to select the resolution at which the land/sea mask should be built. |
---|
247 | !Config Units = - |
---|
248 | CALL getin('JJM_LAT', jjm) |
---|
249 | ! |
---|
250 | IF (iim > 0 .AND. jjm > 0 ) THEN |
---|
251 | ! |
---|
252 | ALLOCATE(lon(iim,jjm), lat(iim,jjm), orog(iim,jjm)) |
---|
253 | ! Trung: Calculate resolution |
---|
254 | dx = (MAXVAL(zoom_lon)-MINVAL(zoom_lon))/REAL(iim, r_std) |
---|
255 | dy = (MAXVAL(zoom_lat)-MINVAL(zoom_lat))/REAL(jjm, r_std) |
---|
256 | WRITE (*,*) "Resolution in longitude [degrees] dx = ",dx |
---|
257 | WRITE (*,*) "Resolution in laltiude [degrees] dy = ",dy |
---|
258 | ! |
---|
259 | ! Generate lon and lat |
---|
260 | ! |
---|
261 | DO i=1,iim |
---|
262 | lon(i,:) = MINVAL(zoom_lon) + (i-1)*dx + dx/2.0 |
---|
263 | ENDDO |
---|
264 | DO j=1,jjm |
---|
265 | lat(:,j) = MINVAL(zoom_lat) + (j-1)*dy + dy/2.0 |
---|
266 | ENDDO |
---|
267 | ! |
---|
268 | ! Interpolate to new orography |
---|
269 | ! |
---|
270 | CALL interpol(iim_full, jjm_full, lon_full, lat_full, etopo, iim, jjm, lon, lat, orog) |
---|
271 | ! |
---|
272 | ! Write orog to netcdf for checking (deleted) |
---|
273 | ! |
---|
274 | ELSE |
---|
275 | ! Just transfer the data over the zoomed area |
---|
276 | ibeg=MINLOC(ABS(lon_full(:,1)-MINVAL(zoom_lon))) |
---|
277 | iend=MINLOC(ABS(lon_full(:,1)-MAXVAL(zoom_lon))) |
---|
278 | jbeg=MINLOC(ABS(lat_full(1,:)-MINVAL(zoom_lat))) |
---|
279 | jend=MINLOC(ABS(lat_full(1,:)-MAXVAL(zoom_lat))) |
---|
280 | iim = (iend(1)-ibeg(1))+1 |
---|
281 | jjm = (jend(1)-jbeg(1))+1 |
---|
282 | ! |
---|
283 | ! |
---|
284 | ALLOCATE(lon(iim,jjm), lat(iim,jjm), orog(iim,jjm), contfrac(iim,jjm)) |
---|
285 | ! |
---|
286 | DO j=1,jjm |
---|
287 | lon(:,j) = lon_full(ibeg(1):iend(1),j) |
---|
288 | ENDDO |
---|
289 | DO i=1,iim |
---|
290 | lat(i,:) = lat_full(i,jbeg(1):jend(1)) |
---|
291 | ENDDO |
---|
292 | ! Some treatment for the orogography |
---|
293 | orog(:,:) = 0.0 |
---|
294 | DO i=ibeg(1),iend(1) |
---|
295 | DO j=jbeg(1),jend(1) |
---|
296 | orog(i-ibeg(1)+1,j-jbeg(1)+1) = MAX(etopo(i,j), 0.0) |
---|
297 | ENDDO |
---|
298 | ENDDO |
---|
299 | ! |
---|
300 | ! Generate the contfrac field |
---|
301 | ! |
---|
302 | contfrac(:,:)= 0.0 |
---|
303 | DO i=1,iim |
---|
304 | DO j=1,jjm |
---|
305 | IF ( orog(i,j) > 0 ) THEN |
---|
306 | contfrac(i,j) = 1.0 |
---|
307 | ENDIF |
---|
308 | ENDDO |
---|
309 | ENDDO |
---|
310 | ENDIF |
---|
311 | ! |
---|
312 | ENDIF |
---|
313 | ! |
---|
314 | ELSE |
---|
315 | ! |
---|
316 | ! Just zoom into the contfrac if needed and build a dummy orog |
---|
317 | ! |
---|
318 | IF ( is_root_prc) THEN |
---|
319 | IF ( MINVAL(zoom_lon) > -180 .OR. MAXVAL(zoom_lon) < 180 .OR.& |
---|
320 | & MINVAL(zoom_lat) > -90 .OR. MAXVAL(zoom_lat) < 90 ) THEN |
---|
321 | ! Just transfer the data over the zoomed area |
---|
322 | ibeg=MINLOC(ABS(lon_full(:,1)-MINVAL(zoom_lon))) |
---|
323 | iend=MINLOC(ABS(lon_full(:,1)-MAXVAL(zoom_lon))) |
---|
324 | jbeg=MINLOC(ABS(lat_full(1,:)-MINVAL(zoom_lat))) |
---|
325 | jend=MINLOC(ABS(lat_full(1,:)-MAXVAL(zoom_lat))) |
---|
326 | iim = (iend(1)-ibeg(1))+1 |
---|
327 | jjm = (jend(1)-jbeg(1))+1 |
---|
328 | ! |
---|
329 | ! |
---|
330 | ALLOCATE(lon(iim,jjm), lat(iim,jjm), orog(iim,jjm), contfrac(iim,jjm)) |
---|
331 | ! |
---|
332 | DO j=1,jjm |
---|
333 | lon(:,j) = lon_full(ibeg(1):iend(1),j) |
---|
334 | ENDDO |
---|
335 | DO i=1,iim |
---|
336 | lat(i,:) = lat_full(i,jbeg(1):jend(1)) |
---|
337 | ENDDO |
---|
338 | ! Some treatment for the orogography |
---|
339 | orog(:,:) = 0.0 |
---|
340 | contfrac(:,:) = 0.0 |
---|
341 | DO i=ibeg(1),iend(1) |
---|
342 | DO j=jbeg(1),jend(1) |
---|
343 | orog(i-ibeg(1)+1,j-jbeg(1)+1) = 1.0 |
---|
344 | contfrac(i-ibeg(1)+1,j-jbeg(1)+1) = contfrac_full(i,j) |
---|
345 | ENDDO |
---|
346 | ENDDO |
---|
347 | ! |
---|
348 | ELSE |
---|
349 | iim = iim_full |
---|
350 | jjm = jjm_full |
---|
351 | ALLOCATE(lon(iim,jjm), lat(iim,jjm), orog(iim,jjm), contfrac(iim,jjm)) |
---|
352 | lon(:,:) = lon_full(:,:) |
---|
353 | lat(:,:) = lat_full(:,:) |
---|
354 | contfrac(:,:) = contfrac_full(:,:) |
---|
355 | orog(:,:) = contfrac_full(:,:)+100 |
---|
356 | ENDIF |
---|
357 | ENDIF |
---|
358 | ! |
---|
359 | ENDIF |
---|
360 | ! |
---|
361 | IF ( is_root_prc) THEN |
---|
362 | WRITE(*,*) "Dimensions : ", iim, jjm |
---|
363 | WRITE(*,*) MINVAL(lon), ' < LON < ', MAXVAL(lon) |
---|
364 | WRITE(*,*) MINVAL(lat), ' < LAT < ', MAXVAL(lat) |
---|
365 | WRITE(*,*) MINVAL(orog), " < OROG < ", MAXVAL(orog) |
---|
366 | WRITE(*,*) MINVAL(contfrac), " < contfrac < ", MAXVAL(contfrac) |
---|
367 | ENDIF |
---|
368 | ! |
---|
369 | ! Free some memory |
---|
370 | ! |
---|
371 | IF (ALLOCATED(lon_full)) DEALLOCATE(lon_full) |
---|
372 | IF (ALLOCATED(lat_full)) DEALLOCATE(lat_full) |
---|
373 | IF (ALLOCATED(etopo)) DEALLOCATE(etopo) |
---|
374 | IF (ALLOCATED(contfrac_full)) DEALLOCATE(contfrac_full) |
---|
375 | ! |
---|
376 | ! Distribute the information to all processors |
---|
377 | ! |
---|
378 | CALL bcast(iim) |
---|
379 | CALL bcast(jjm) |
---|
380 | IF ( .NOT. ALLOCATED(lon)) ALLOCATE(lon(iim,jjm)) |
---|
381 | IF ( .NOT. ALLOCATED(lat)) ALLOCATE(lat(iim,jjm)) |
---|
382 | IF ( .NOT. ALLOCATED(orog)) ALLOCATE(orog(iim,jjm)) |
---|
383 | IF ( .NOT. ALLOCATED(contfrac)) ALLOCATE(contfrac(iim,jjm)) |
---|
384 | CALL bcast(lon) |
---|
385 | CALL bcast(lat) |
---|
386 | CALL bcast(orog) |
---|
387 | CALL bcast(contfrac) |
---|
388 | ! |
---|
389 | ! Count the number of land points |
---|
390 | ! |
---|
391 | nbland = COUNT(contfrac > 0.0) |
---|
392 | ! |
---|
393 | iim_out = iim |
---|
394 | jjm_out = jjm |
---|
395 | nbland_out = nbland |
---|
396 | ! |
---|
397 | END SUBROUTINE getlandseamask_init |
---|
398 | !! |
---|
399 | !================================================================================================================================ |
---|
400 | !! SUBROUTINE : getlandseamask_read |
---|
401 | !! |
---|
402 | !> BRIEF Returns the land/sea mask |
---|
403 | !! |
---|
404 | !! DESCRIPTION : None |
---|
405 | !! |
---|
406 | !! RECENT CHANGE(S): None |
---|
407 | !! |
---|
408 | !! MAIN OUTPUT VARIABLE(S): |
---|
409 | !! |
---|
410 | !! REFERENCES : None |
---|
411 | !! |
---|
412 | !! FLOWCHART : None |
---|
413 | !! \n |
---|
414 | !_================================================================================================================================ |
---|
415 | !! |
---|
416 | SUBROUTINE getlandseamask_read(lon_out, lat_out, mask_out, orog_out) |
---|
417 | ! |
---|
418 | ! ARGUMENTS |
---|
419 | ! |
---|
420 | REAL(r_std), DIMENSION(:,:), INTENT(out) :: lon_out, lat_out |
---|
421 | REAL(r_std), DIMENSION(:,:), INTENT(out) :: mask_out, orog_out |
---|
422 | ! |
---|
423 | ! LOCAL |
---|
424 | ! |
---|
425 | lon_out(:,:) = lon(:,:) |
---|
426 | lat_out(:,:) = lat(:,:) |
---|
427 | mask_out(:,:) = contfrac(:,:) |
---|
428 | orog_out(:,:) = orog(:,:) |
---|
429 | ! |
---|
430 | END SUBROUTINE getlandseamask_read |
---|
431 | !! |
---|
432 | !! |
---|
433 | ! |
---|
434 | !================================================================================================================================ |
---|
435 | !! SUBROUTINE : opencontfrac |
---|
436 | !! |
---|
437 | !> BRIEF This subroutine gets the dimensions of the fields in the filename. Lat and lon in particular. |
---|
438 | !! |
---|
439 | !! DESCRIPTION : This routines caters for ORCHIDEE as well as the WRF geo files. |
---|
440 | !! |
---|
441 | !! RECENT CHANGE(S): None |
---|
442 | !! |
---|
443 | !! MAIN OUTPUT VARIABLE(S): |
---|
444 | !! |
---|
445 | !! REFERENCES : None |
---|
446 | !! |
---|
447 | !! FLOWCHART : None |
---|
448 | !! \n |
---|
449 | !_================================================================================================================================ |
---|
450 | SUBROUTINE opencontfrac(filename, iim_full, jjm_full, fid) |
---|
451 | ! |
---|
452 | ! ARGUMENTS |
---|
453 | ! |
---|
454 | CHARACTER(LEN=*), INTENT(in) :: filename |
---|
455 | INTEGER(i_std), INTENT(out) :: iim_full, jjm_full, fid |
---|
456 | ! |
---|
457 | INTEGER(i_std) :: iret, i, lll, ndims, nvars |
---|
458 | CHARACTER(LEN=20) :: dimname |
---|
459 | ! |
---|
460 | iret = NF90_OPEN(filename, NF90_NOWRITE, fid) |
---|
461 | IF (iret /= NF90_NOERR) THEN |
---|
462 | WRITE(*,*) "==>",trim(nf90_strerror(iret)) |
---|
463 | WRITE(*,*) "Error opening ", filename |
---|
464 | STOP |
---|
465 | ENDIF |
---|
466 | iret = NF90_INQUIRE (fid, nDimensions=ndims, nVariables=nvars) |
---|
467 | DO i=1,ndims |
---|
468 | iret = NF90_INQUIRE_DIMENSION (fid, i, name=dimname, len=lll) |
---|
469 | CALL change_to_lowercase(dimname) |
---|
470 | IF ( INDEX(dimname,"lon") > 0 ) THEN |
---|
471 | iim_full = lll |
---|
472 | ELSE IF (INDEX(dimname,"west_east") > 0 .AND. LEN_TRIM(dimname) == LEN_TRIM("west_east")) THEN |
---|
473 | iim_full = lll |
---|
474 | ELSE IF ( INDEX(dimname,"lat") > 0 ) THEN |
---|
475 | jjm_full = lll |
---|
476 | ELSE IF (INDEX(dimname,"south_north") > 0 .AND. LEN_TRIM(dimname) == LEN_TRIM("south_north")) THEN |
---|
477 | jjm_full = lll |
---|
478 | ENDIF |
---|
479 | ENDDO |
---|
480 | ! |
---|
481 | WRITE(*,*) "XXX iimf, jjmf = ", iim_full, jjm_full |
---|
482 | ! |
---|
483 | END SUBROUTINE opencontfrac |
---|
484 | |
---|
485 | !================================================================================================================================ |
---|
486 | !! SUBROUTINE : readcontfrac |
---|
487 | !! |
---|
488 | !> BRIEF This subroutine gets the topography out of the file |
---|
489 | !! |
---|
490 | !! DESCRIPTION : This routines caters for ORCHIDEE as well as the WRF geo files. |
---|
491 | !! |
---|
492 | !! RECENT CHANGE(S): None |
---|
493 | !! |
---|
494 | !! MAIN OUTPUT VARIABLE(S): |
---|
495 | !! |
---|
496 | !! REFERENCES : None |
---|
497 | !! |
---|
498 | !! FLOWCHART : None |
---|
499 | !! \n |
---|
500 | !_================================================================================================================================ |
---|
501 | SUBROUTINE readcontfrac(fid, filename, iimf, jjmf, lon, lat, contf) |
---|
502 | ! |
---|
503 | ! ARGUMENTS |
---|
504 | ! |
---|
505 | INTEGER(i_std), INTENT(in) :: fid |
---|
506 | CHARACTER(LEN=*), INTENT(in) :: filename |
---|
507 | INTEGER(i_std), INTENT(in) :: iimf, jjmf |
---|
508 | REAL(r_std), DIMENSION(:,:), INTENT(out) :: lon, lat |
---|
509 | REAL(r_std), DIMENSION(:,:), INTENT(out) :: contf |
---|
510 | ! |
---|
511 | ! LOCAL |
---|
512 | ! |
---|
513 | INTEGER(i_std) :: iret, ndims, nvars, xid, yid, vid, wid |
---|
514 | INTEGER(i_std) :: xndims, yndims, vndims, wndims |
---|
515 | INTEGER(i_std) :: iv, ndimsvar, i, j |
---|
516 | INTEGER(i_std), DIMENSION(4) :: dimids |
---|
517 | CHARACTER(LEN=60) :: varname, units |
---|
518 | CHARACTER(LEN=3) :: model='ORC' |
---|
519 | INTEGER(i_std), DIMENSION(3) :: start, count |
---|
520 | REAL(r_std), ALLOCATABLE, DIMENSION(:) :: vtmp |
---|
521 | ! |
---|
522 | iret = NF90_INQUIRE (fid, nDimensions=ndims, nVariables=nvars) |
---|
523 | ! |
---|
524 | xid = -1 |
---|
525 | yid = -1 |
---|
526 | vid = -1 |
---|
527 | wid = -1 |
---|
528 | ! |
---|
529 | DO iv=1,nvars |
---|
530 | ! |
---|
531 | iret = NF90_INQUIRE_VARIABLE(fid, iv, name=varname, ndims=ndimsvar, dimids=dimids) |
---|
532 | iret = NF90_GET_ATT(fid, iv, 'units', units) |
---|
533 | CALL change_to_lowercase(units) |
---|
534 | CALL change_to_lowercase(varname) |
---|
535 | ! |
---|
536 | IF ( INDEX(units,"east") > 0 .OR. INDEX(varname, "xlong_m") > 0 ) THEN |
---|
537 | xid = iv |
---|
538 | xndims = ndimsvar |
---|
539 | IF ( INDEX(varname, "xlong_m") > 0 ) THEN |
---|
540 | model='WRF' |
---|
541 | ENDIF |
---|
542 | ELSE IF (INDEX(units,"north") > 0 .OR. INDEX(varname, "xlat_m") > 0 ) THEN |
---|
543 | yid = iv |
---|
544 | yndims = ndimsvar |
---|
545 | IF ( INDEX(varname, "xlat_m") > 0 ) THEN |
---|
546 | model='WRF' |
---|
547 | ENDIF |
---|
548 | ENDIF |
---|
549 | ! |
---|
550 | IF ( INDEX(varname,"contfrac") > 0 ) THEN |
---|
551 | vid = iv |
---|
552 | vndims = ndimsvar |
---|
553 | ENDIF |
---|
554 | IF ( INDEX(varname,"landmask") > 0 ) THEN |
---|
555 | wid = iv |
---|
556 | wndims = ndimsvar |
---|
557 | ENDIF |
---|
558 | ! |
---|
559 | ENDDO |
---|
560 | ! |
---|
561 | ! Get longitude |
---|
562 | ! |
---|
563 | IF ( xid > 0 ) THEN |
---|
564 | IF ( xndims == 1 ) THEN |
---|
565 | ALLOCATE(vtmp(iimf)) |
---|
566 | iret = NF90_GET_VAR(fid, xid, vtmp) |
---|
567 | DO j=1,jjmf |
---|
568 | lon(:,j) = vtmp(:) |
---|
569 | ENDDO |
---|
570 | DEALLOCATE(vtmp) |
---|
571 | ELSE IF ( xndims == 2 ) THEN |
---|
572 | iret = NF90_GET_VAR(fid, xid, lon) |
---|
573 | ELSE IF ( xndims == 3 ) THEN |
---|
574 | start = (/1,1,1/) |
---|
575 | count = (/iimf,jjmf,1/) |
---|
576 | iret = NF90_GET_VAR(fid, xid, lon, start, count) |
---|
577 | ELSE |
---|
578 | WRITE(*,*) "Unforeseen number of dimensions for longitude ", xndims |
---|
579 | STOP |
---|
580 | ENDIF |
---|
581 | ELSE |
---|
582 | WRITE(*,*) "could not find the longitude in file ", filename |
---|
583 | STOP |
---|
584 | ENDIF |
---|
585 | ! |
---|
586 | ! Get latitude |
---|
587 | ! |
---|
588 | IF ( yid > 0 ) THEN |
---|
589 | IF ( yndims == 1 ) THEN |
---|
590 | ALLOCATE(vtmp(jjmf)) |
---|
591 | iret = NF90_GET_VAR(fid, xid, vtmp) |
---|
592 | DO i=1,iimf |
---|
593 | lat(i,:) = vtmp(:) |
---|
594 | ENDDO |
---|
595 | DEALLOCATE(vtmp) |
---|
596 | ELSE IF ( yndims == 2 ) THEN |
---|
597 | iret = NF90_GET_VAR(fid, yid, lat) |
---|
598 | ELSE IF ( yndims == 3 ) THEN |
---|
599 | start = (/1,1,1/) |
---|
600 | count = (/iimf,jjmf,1/) |
---|
601 | iret = NF90_GET_VAR(fid, yid, lat, start, count) |
---|
602 | ELSE |
---|
603 | WRITE(*,*) "Unforeseen number of dimensions for latitude ", yndims |
---|
604 | STOP |
---|
605 | ENDIF |
---|
606 | ELSE |
---|
607 | WRITE(*,*) "could not find the latitude in file ", filename |
---|
608 | STOP |
---|
609 | ENDIF |
---|
610 | ! |
---|
611 | ! Get the variable |
---|
612 | ! |
---|
613 | contf(:,:) = 0.0 |
---|
614 | IF ( model == "ORC" ) THEN |
---|
615 | IF ( vid > 0 ) THEN |
---|
616 | iret = NF90_GET_VAR(fid, vid, contf) |
---|
617 | IF (iret /= NF90_NOERR) THEN |
---|
618 | WRITE(*,*) "==>",trim(nf90_strerror(iret)) |
---|
619 | WRITE(*,*) "Cannot read variable contfrac" |
---|
620 | STOP |
---|
621 | ENDIF |
---|
622 | ELSE |
---|
623 | WRITE(*,*) "could not find the variable contfrac in file ", filename |
---|
624 | STOP |
---|
625 | ENDIF |
---|
626 | ELSE IF ( model == "WRF" ) THEN |
---|
627 | ! |
---|
628 | ! This is a time varying variable so start and count needs to be specified |
---|
629 | ! |
---|
630 | start = (/1,1,1/) |
---|
631 | count = (/iimf,jjmf,1/) |
---|
632 | IF ( wid > 0 ) THEN |
---|
633 | iret = NF90_GET_VAR(fid, wid, contf, start, count) |
---|
634 | IF (iret /= NF90_NOERR) THEN |
---|
635 | WRITE(*,*) "==>",trim(nf90_strerror(iret)) |
---|
636 | WRITE(*,*) "Cannot read variable landmask" |
---|
637 | STOP |
---|
638 | ENDIF |
---|
639 | ELSE |
---|
640 | WRITE(*,*) "could not find the variable contfrac in file ", filename |
---|
641 | STOP |
---|
642 | ENDIF |
---|
643 | WRITE(*,*) "XXX", MINVAL(contf), " < contf < ", MAXVAL(contf) |
---|
644 | ELSE |
---|
645 | WRITE(*,*) "Unknown model = ", model |
---|
646 | STOP |
---|
647 | ENDIF |
---|
648 | ! |
---|
649 | ! Delete undef values |
---|
650 | ! |
---|
651 | DO i=1,iimf |
---|
652 | DO j=1,jjmf |
---|
653 | IF ( contf(i,j) > 1.0 .OR. contf(i,j) < 0.0 ) THEN |
---|
654 | contf(i,j) = 0.0 |
---|
655 | ENDIF |
---|
656 | ENDDO |
---|
657 | ENDDO |
---|
658 | ! |
---|
659 | iret = NF90_CLOSE(fid) |
---|
660 | ! |
---|
661 | END SUBROUTINE readcontfrac |
---|
662 | !! |
---|
663 | ! |
---|
664 | !================================================================================================================================ |
---|
665 | !! SUBROUTINE : topo_getsize |
---|
666 | !! |
---|
667 | !> BRIEF This subroutine gets the size of the topography field |
---|
668 | !! |
---|
669 | !! DESCRIPTION : None |
---|
670 | !! |
---|
671 | !! RECENT CHANGE(S): None |
---|
672 | !! |
---|
673 | !! MAIN OUTPUT VARIABLE(S): |
---|
674 | !! |
---|
675 | !! REFERENCES : None |
---|
676 | !! |
---|
677 | !! FLOWCHART : None |
---|
678 | !! \n |
---|
679 | !_================================================================================================================================ |
---|
680 | SUBROUTINE topo_getsize(filename, iim_full, jjm_full) |
---|
681 | ! |
---|
682 | USE defprec |
---|
683 | USE netcdf |
---|
684 | ! |
---|
685 | ! ARGUMENTS |
---|
686 | ! |
---|
687 | CHARACTER(LEN=*), INTENT(in) :: filename |
---|
688 | INTEGER(i_std), INTENT(out) :: iim_full, jjm_full |
---|
689 | ! |
---|
690 | ! LOCAL |
---|
691 | ! |
---|
692 | INTEGER(i_std) :: fid, iret, xid, yid, ndims, nvars, i, lll |
---|
693 | CHARACTER(LEN=20) :: dimname |
---|
694 | ! |
---|
695 | iret = NF90_OPEN(filename, NF90_NOWRITE, fid) |
---|
696 | IF (iret /= NF90_NOERR) THEN |
---|
697 | WRITE(*,*) "Error opening ", filename |
---|
698 | STOP |
---|
699 | ENDIF |
---|
700 | iret = NF90_INQUIRE (fid, nDimensions=ndims, nVariables=nvars) |
---|
701 | DO i=1,ndims |
---|
702 | iret = NF90_INQUIRE_DIMENSION (fid, i, name=dimname, len=lll) |
---|
703 | CALL change_to_lowercase(dimname) |
---|
704 | IF ( INDEX(dimname,"x") > 0 ) THEN |
---|
705 | iim_full = lll |
---|
706 | ELSE IF ( INDEX(dimname,"y") > 0 ) THEN |
---|
707 | jjm_full = lll |
---|
708 | ENDIF |
---|
709 | ENDDO |
---|
710 | ! |
---|
711 | iret = NF90_CLOSE(fid) |
---|
712 | ! |
---|
713 | END SUBROUTINE topo_getsize |
---|
714 | !================================================================================================================================ |
---|
715 | !! SUBROUTINE : topo_getvar |
---|
716 | !! |
---|
717 | !> BRIEF This subroutine gets the topography out of the file |
---|
718 | !! |
---|
719 | !! DESCRIPTION : None |
---|
720 | !! |
---|
721 | !! RECENT CHANGE(S): None |
---|
722 | !! |
---|
723 | !! MAIN OUTPUT VARIABLE(S): |
---|
724 | !! |
---|
725 | !! REFERENCES : None |
---|
726 | !! |
---|
727 | !! FLOWCHART : None |
---|
728 | !! \n |
---|
729 | !_================================================================================================================================ |
---|
730 | SUBROUTINE topo_getvar(filename, iim, jjm, lon, lat, etopo) |
---|
731 | ! |
---|
732 | USE defprec |
---|
733 | USE netcdf |
---|
734 | ! |
---|
735 | ! ARGUMENTS |
---|
736 | ! |
---|
737 | CHARACTER(LEN=*), INTENT(in) :: filename |
---|
738 | INTEGER(i_std), INTENT(in) :: iim, jjm |
---|
739 | REAL(r_std), DIMENSION(iim,jjm), INTENT(out) :: lon |
---|
740 | REAL(r_std), DIMENSION(iim,jjm), INTENT(out) :: lat |
---|
741 | REAL(r_std), DIMENSION(iim,jjm), INTENT(out) :: etopo |
---|
742 | ! |
---|
743 | ! LOCAL |
---|
744 | ! |
---|
745 | INTEGER(i_std) :: fid, iret, xid, yid, vid |
---|
746 | INTEGER(i_std) :: i, j, iv, ndimsvar, ndims, nvars |
---|
747 | CHARACTER(LEN=20) :: varname, units |
---|
748 | INTEGER(i_std), DIMENSION(1) :: il |
---|
749 | REAL(r_std), ALLOCATABLE, DIMENSION(:) :: lon_loc, lon_read, lat_read |
---|
750 | REAL(r_std), ALLOCATABLE, DIMENSION(:,:) :: etopo_loc |
---|
751 | INTEGER(i_std), ALLOCATABLE, DIMENSION(:) :: dimids, londim_ids, latdim_ids |
---|
752 | ! |
---|
753 | ALLOCATE(lon_loc(iim)) |
---|
754 | ALLOCATE(lon_read(iim)) |
---|
755 | ALLOCATE(lat_read(jjm)) |
---|
756 | ALLOCATE(etopo_loc(iim,jjm)) |
---|
757 | ALLOCATE(dimids(NF90_MAX_VAR_DIMS), londim_ids(NF90_MAX_VAR_DIMS), latdim_ids(NF90_MAX_VAR_DIMS)) |
---|
758 | ! |
---|
759 | iret = NF90_OPEN(filename, NF90_NOWRITE, fid) |
---|
760 | IF (iret /= NF90_NOERR) THEN |
---|
761 | WRITE(*,*) "Error opening ", filename |
---|
762 | STOP |
---|
763 | ENDIF |
---|
764 | ! |
---|
765 | iret = NF90_INQUIRE (fid, nDimensions=ndims, nVariables=nvars) |
---|
766 | ! |
---|
767 | ! Identify the variables |
---|
768 | ! |
---|
769 | xid = -1 |
---|
770 | yid = -1 |
---|
771 | vid = -1 |
---|
772 | ! |
---|
773 | DO iv=1,nvars |
---|
774 | iret = NF90_INQUIRE_VARIABLE(fid, iv, name=varname, ndims=ndimsvar, dimids=dimids) |
---|
775 | iret = NF90_GET_ATT(fid, iv, 'units', units) |
---|
776 | CALL change_to_lowercase(units) |
---|
777 | ! |
---|
778 | IF ( INDEX(units,"east") > 0 ) THEN |
---|
779 | xid = iv |
---|
780 | ELSE IF (INDEX(units,"north") > 0 ) THEN |
---|
781 | yid = iv |
---|
782 | ELSE IF ( INDEX(units,"meters") > 0 ) THEN |
---|
783 | vid = iv |
---|
784 | ENDIF |
---|
785 | ENDDO |
---|
786 | ! |
---|
787 | ! Get variables now that they have been identified |
---|
788 | ! |
---|
789 | IF ( xid > 0 ) THEN |
---|
790 | iret = NF90_GET_VAR(fid, xid, lon_read) |
---|
791 | ELSE |
---|
792 | WRITE(*,*) "cound not find the longitude in file ", filename |
---|
793 | STOP |
---|
794 | ENDIF |
---|
795 | IF ( yid > 0 ) THEN |
---|
796 | iret = NF90_GET_VAR(fid, yid, lat_read) |
---|
797 | ELSE |
---|
798 | WRITE(*,*) "cound not find the latitude in file ", filename |
---|
799 | STOP |
---|
800 | ENDIF |
---|
801 | IF ( vid > 0 ) THEN |
---|
802 | iret = NF90_GET_VAR(fid, vid, etopo_loc) |
---|
803 | ELSE |
---|
804 | WRITE(*,*) "cound not find the topography in file ", filename |
---|
805 | STOP |
---|
806 | ENDIF |
---|
807 | iret = NF90_CLOSE(fid) |
---|
808 | ! |
---|
809 | ! Shift the topography around the longitude to get a -180:180 range |
---|
810 | ! Only if needed ! |
---|
811 | ! |
---|
812 | IF ( MAXVAL(lon_read) > 180. ) THEN |
---|
813 | ! |
---|
814 | lon_loc(:) = lon_read(:) |
---|
815 | ! |
---|
816 | DO i=1,iim |
---|
817 | IF (lon_loc(i) > 180. ) THEN |
---|
818 | lon_loc(i) = lon_loc(i)-360. |
---|
819 | ENDIF |
---|
820 | ENDDO |
---|
821 | ! |
---|
822 | DO i=1,iim |
---|
823 | il = MINLOC(lon_loc) |
---|
824 | lon_read(i) = lon_loc(il(1)) |
---|
825 | etopo(i,:) = etopo_loc(il(1),:) |
---|
826 | lon_loc(il(1)) = 9999999.999999 |
---|
827 | ENDDO |
---|
828 | ! |
---|
829 | DO j=1,jjm |
---|
830 | lon(:,j) = lon_read(:) |
---|
831 | ENDDO |
---|
832 | DO i=1,iim |
---|
833 | lat(i,:) = lat_read(:) |
---|
834 | ENDDO |
---|
835 | ELSE |
---|
836 | DO j=1,jjm |
---|
837 | lon(:,j) = lon_read(:) |
---|
838 | ENDDO |
---|
839 | DO i=1,iim |
---|
840 | lat(i,:) = lat_read(:) |
---|
841 | ENDDO |
---|
842 | etopo(:,:) = etopo_loc(:,:) |
---|
843 | ENDIF |
---|
844 | ! |
---|
845 | ! |
---|
846 | DEALLOCATE(lon_read) |
---|
847 | DEALLOCATE(lon_loc) |
---|
848 | DEALLOCATE(lat_read) |
---|
849 | DEALLOCATE(etopo_loc) |
---|
850 | ! |
---|
851 | END SUBROUTINE topo_getvar |
---|
852 | ! |
---|
853 | !================================================================================================================================ |
---|
854 | !! SUBROUTINE : interpol |
---|
855 | !! |
---|
856 | !> BRIEF This subroutine interpolates topography to new resolution. |
---|
857 | !! |
---|
858 | !! DESCRIPTION : None |
---|
859 | !! |
---|
860 | !! RECENT CHANGE(S): None |
---|
861 | !! |
---|
862 | !! MAIN OUTPUT VARIABLE(S): |
---|
863 | !! |
---|
864 | !! REFERENCES : None |
---|
865 | !! |
---|
866 | !! FLOWCHART : None |
---|
867 | !! \n |
---|
868 | !_================================================================================================================================ |
---|
869 | |
---|
870 | SUBROUTINE interpol(iim_fine, jjm_fine, lon_fine, lat_fine, orog, iim, jjm, lon, lat, neworog) |
---|
871 | ! |
---|
872 | USE constantes_var |
---|
873 | USE ioipsl_para |
---|
874 | ! |
---|
875 | IMPLICIT NONE |
---|
876 | ! Parameter |
---|
877 | !INTEGER(i_std), PARAMETER :: nbvmax = 800 |
---|
878 | INTEGER(i_std), PARAMETER :: nbvmax = 30000 |
---|
879 | ! |
---|
880 | INTEGER(i_std) :: iim_fine, jjm_fine, iim, jjm |
---|
881 | REAL(r_std), DIMENSION (iim_fine,jjm_fine) :: lon_fine |
---|
882 | REAL(r_std), DIMENSION (iim_fine,jjm_fine) :: lat_fine |
---|
883 | REAL(r_std), DIMENSION (iim_fine,jjm_fine) :: orog |
---|
884 | REAL(r_std), DIMENSION (iim,jjm) :: lon |
---|
885 | REAL(r_std), DIMENSION (jjm,iim) :: lat |
---|
886 | REAL(r_std), DIMENSION (iim,jjm) :: neworog |
---|
887 | ! |
---|
888 | REAL(r_std), DIMENSION (nbvmax) :: area, topo |
---|
889 | ! |
---|
890 | INTEGER(i_std) :: ip, jp, ig, jg, i, fopt, lastjp |
---|
891 | REAL(r_std) :: dx, dy, ax, ay, ox, lon_up, lon_low, lat_up, lat_low, sgn |
---|
892 | REAL(r_std) :: totarea, landarea, height |
---|
893 | REAL(r_std), ALLOCATABLE, DIMENSION (:,:) :: lon_ful, lat_ful, laup_rel, loup_rel, lalow_rel, lolow_rel |
---|
894 | REAL(r_std) :: lonrel, lolowrel, louprel, coslat |
---|
895 | ! |
---|
896 | ! Allocate arrays |
---|
897 | ! |
---|
898 | ALLOCATE (laup_rel(iim_fine,jjm_fine)) |
---|
899 | ALLOCATE (loup_rel(iim_fine,jjm_fine)) |
---|
900 | ALLOCATE (lalow_rel(iim_fine,jjm_fine)) |
---|
901 | ALLOCATE (lolow_rel(iim_fine,jjm_fine)) |
---|
902 | ALLOCATE (lat_ful(iim_fine+2,jjm_fine+2)) |
---|
903 | ALLOCATE (lon_ful(iim_fine+2,jjm_fine+2)) |
---|
904 | ! |
---|
905 | ! Duplicate the border assuming we have a global grid going from west to east |
---|
906 | ! |
---|
907 | DO jp=2,jjm_fine+1 |
---|
908 | lon_ful(2:iim_fine+1,jp) = lon_fine(1:iim_fine,jp) |
---|
909 | ENDDO |
---|
910 | DO ip=2,iim_fine+1 |
---|
911 | lat_ful(ip,2:jjm_fine+1) = lat_fine(ip,1:jjm_fine) |
---|
912 | ENDDO |
---|
913 | ! |
---|
914 | IF ( lon_fine(iim_fine,1) .LT. lon_ful(2,2)) THEN |
---|
915 | lon_ful(1,2:jjm_fine+1) = lon_fine(iim_fine,:) |
---|
916 | lat_ful(1,2:jjm_fine+1) = lat_fine(1,1:jjm_fine) |
---|
917 | ELSE |
---|
918 | lon_ful(1,2:jjm_fine+1) = lon_fine(iim_fine,:)-360. |
---|
919 | lat_ful(1,2:jjm_fine+1) = lat_fine(1,1:jjm_fine) |
---|
920 | ENDIF |
---|
921 | |
---|
922 | IF ( lon_fine(1,1) .GT. lon_ful(iim_fine+1,2)) THEN |
---|
923 | lon_ful(iim_fine+2,2:jjm_fine+1) = lon_fine(1,1:jjm_fine) |
---|
924 | lat_ful(iim_fine+2,2:jjm_fine+1) = lat_fine(iim_fine,1:jjm_fine) |
---|
925 | ELSE |
---|
926 | lon_ful(iim_fine+2,2:jjm_fine+1) = lon_fine(1,1:jjm_fine)+360 |
---|
927 | lat_ful(iim_fine+2,2:jjm_fine+1) = lat_fine(iim_fine,1:jjm_fine) |
---|
928 | ENDIF |
---|
929 | ! |
---|
930 | sgn = lat_fine(1,1)/ABS(lat_fine(1,1)) |
---|
931 | lat_ful(2:iim_fine+1,1) = sgn*180 - lat_fine(1,1) |
---|
932 | sgn = lat_fine(iim_fine,jjm_fine)/ABS(lat_fine(iim_fine,jjm_fine)) |
---|
933 | lat_ful(2:iim_fine+1,jjm_fine+2) = sgn*180 - lat_fine(iim_fine,jjm_fine) |
---|
934 | lat_ful(1,1) = lat_ful(iim_fine+1,1) |
---|
935 | lat_ful(iim_fine+2,1) = lat_ful(2,1) |
---|
936 | lat_ful(1,jjm_fine+2) = lat_ful(iim_fine+1,jjm_fine+2) |
---|
937 | lat_ful(iim_fine+2,jjm_fine+2) = lat_ful(2,jjm_fine+2) |
---|
938 | ! |
---|
939 | ! Add the longitude lines to the top and bottom |
---|
940 | ! |
---|
941 | lon_ful(:,1) = lon_ful(:,2) |
---|
942 | lon_ful(:,jjm_fine+2) = lon_ful(:,jjm_fine+1) |
---|
943 | ! |
---|
944 | ! Get the upper and lower limits of each grid box |
---|
945 | ! |
---|
946 | DO ip=1,iim_fine |
---|
947 | DO jp=1,jjm_fine |
---|
948 | loup_rel(ip,jp) =MAX(0.5*(lon_ful(ip,jp+1)+lon_ful(ip+1,jp+1)), 0.5*(lon_ful(ip+1,jp+1)+lon_ful(ip+2,jp+1))) |
---|
949 | lolow_rel(ip,jp) =MIN(0.5*(lon_ful(ip,jp+1)+lon_ful(ip+1,jp+1)), 0.5*(lon_ful(ip+1,jp+1)+lon_ful(ip+2,jp+1))) |
---|
950 | laup_rel(ip,jp) =MAX(0.5*(lat_ful(ip+1,jp)+lat_ful(ip+1,jp+1)), 0.5*(lat_ful(ip+1,jp+1)+lat_ful(ip+1,jp+2))) |
---|
951 | lalow_rel(ip,jp) =MIN(0.5*(lat_ful(ip+1,jp)+lat_ful(ip+1,jp+1)), 0.5*(lat_ful(ip+1,jp+1)+lat_ful(ip+1,jp+2))) |
---|
952 | ENDDO |
---|
953 | ENDDO |
---|
954 | ! |
---|
955 | ! Now we take each grid point and find out which values from the forcing we need to average |
---|
956 | ! |
---|
957 | dx = ABS(lon(2,1) - lon(1,1)) |
---|
958 | dy = ABS(lat(1,2) - lat(1,1)) |
---|
959 | ! |
---|
960 | DO ig = 1,iim |
---|
961 | DO jg = 1,jjm |
---|
962 | ! |
---|
963 | ! |
---|
964 | lon_up = lon(ig,jg) + dx/2.0 |
---|
965 | lon_low = lon(ig,jg) - dx/2.0 |
---|
966 | ! |
---|
967 | ! |
---|
968 | lat_up = lat(ig,jg) + dy/2.0 |
---|
969 | lat_low = lat(ig,jg) - dy/2.0 |
---|
970 | ! |
---|
971 | ! Find the grid boxes from the data that go into the model's boxes |
---|
972 | ! We still work as if we had a regular grid ! Well it needs to be localy regular so |
---|
973 | ! so that the longitude at the latitude of the last found point is close to the one of the next point. |
---|
974 | ! |
---|
975 | totarea = 0.0 |
---|
976 | landarea = 0.0 |
---|
977 | height = 0.0 |
---|
978 | ! |
---|
979 | fopt = 0 |
---|
980 | lastjp = 1 |
---|
981 | DO ip=1,iim_fine |
---|
982 | ! |
---|
983 | DO jp = 1, jjm_fine |
---|
984 | ! Either the center of the data grid point is in the interval of the model grid or |
---|
985 | ! the East and West limits of the data grid point are on either sides of the border of |
---|
986 | ! the data grid. |
---|
987 | ! |
---|
988 | ! To do that correctly we have to check if the grid box sits on the date-line. |
---|
989 | ! |
---|
990 | IF ( lon_low < -180.0 ) THEN |
---|
991 | lonrel = MOD( lon_fine(ip,jp) - 360.0, 360.0) |
---|
992 | lolowrel = MOD( lolow_rel(ip,jp) - 360.0, 360.0) |
---|
993 | louprel = MOD( loup_rel(ip,jp) - 360.0, 360.0) |
---|
994 | ! |
---|
995 | ELSE IF ( lon_up > 180.0 ) THEN |
---|
996 | lonrel = MOD( 360. - lon_fine(ip,jp), 360.0) |
---|
997 | lolowrel = MOD( 360. - lolow_rel(ip,jp), 360.0) |
---|
998 | louprel = MOD( 360. - loup_rel(ip,jp), 360.0) |
---|
999 | ELSE |
---|
1000 | lonrel = lon_fine(ip,jp) |
---|
1001 | lolowrel = lolow_rel(ip,jp) |
---|
1002 | louprel = loup_rel(ip,jp) |
---|
1003 | ENDIF |
---|
1004 | ! |
---|
1005 | ! |
---|
1006 | IF ( lonrel > lon_low .AND. lonrel < lon_up .OR. & |
---|
1007 | & lolowrel < lon_low .AND. louprel > lon_low .OR. & |
---|
1008 | & lolowrel < lon_up .AND. louprel > lon_up ) THEN |
---|
1009 | ! |
---|
1010 | ! |
---|
1011 | ! Now that we have the longitude let us find the latitude |
---|
1012 | ! |
---|
1013 | IF ( lat_fine(ip,jp) > lat_low .AND. lat_fine(ip,jp) < lat_up .OR. & |
---|
1014 | & lalow_rel(ip,jp) < lat_low .AND. laup_rel(ip,jp) > lat_low .OR.& |
---|
1015 | & lalow_rel(ip,jp) < lat_up .AND. laup_rel(ip,jp) > lat_up) THEN |
---|
1016 | ! |
---|
1017 | lastjp = jp |
---|
1018 | ! |
---|
1019 | fopt = fopt + 1 |
---|
1020 | IF ( fopt .GT. nbvmax) THEN |
---|
1021 | WRITE(*,*) 'Please increase nbvmax in subroutine interpol', ig, jg |
---|
1022 | WRITE(*,*) "nbvmax = ", nbvmax |
---|
1023 | STOP |
---|
1024 | ELSE |
---|
1025 | ! |
---|
1026 | ! If we sit on the date line we need to do the same transformations as above. |
---|
1027 | ! |
---|
1028 | IF ( lon_low < -180.0 ) THEN |
---|
1029 | lolowrel = MOD( lolow_rel(ip,jp) - 360.0, 360.0) |
---|
1030 | louprel = MOD( loup_rel(ip,jp) - 360.0, 360.0) |
---|
1031 | ! |
---|
1032 | ELSE IF ( lon_up > 180.0 ) THEN |
---|
1033 | lolowrel = MOD( 360. - lolow_rel(ip,jp), 360.0) |
---|
1034 | louprel = MOD( 360. - loup_rel(ip,jp), 360.0) |
---|
1035 | ELSE |
---|
1036 | lolowrel = lolow_rel(ip,jp) |
---|
1037 | louprel = loup_rel(ip,jp) |
---|
1038 | ENDIF |
---|
1039 | ! |
---|
1040 | ! Get the area of the fine grid in the model grid |
---|
1041 | ! |
---|
1042 | coslat = MAX( COS( lat_fine(ip,jp) * pi/180. ), 0.001 ) |
---|
1043 | ax = (MIN(lon_up,louprel)-MAX(lon_low, lolowrel))*pi/180. * R_Earth * coslat |
---|
1044 | ay = (MIN(lat_up, laup_rel(ip,jp))-MAX(lat_low,lalow_rel(ip,jp)))*pi/180. * R_Earth |
---|
1045 | ! |
---|
1046 | totarea = totarea + ax*ay |
---|
1047 | IF ( orog(ip, jp) > 0.0 ) THEN |
---|
1048 | landarea = landarea + ax*ay |
---|
1049 | height = height + ax*ay*orog(ip,jp) |
---|
1050 | ENDIF |
---|
1051 | ! |
---|
1052 | ENDIF |
---|
1053 | ENDIF |
---|
1054 | ! |
---|
1055 | ENDIF |
---|
1056 | ! |
---|
1057 | ENDDO |
---|
1058 | ! |
---|
1059 | ENDDO |
---|
1060 | ! |
---|
1061 | IF ( landarea > 0 .AND. landarea > 0.1*totarea ) THEN |
---|
1062 | neworog(ig,jg) = height/landarea |
---|
1063 | ELSE |
---|
1064 | neworog(ig,jg) = 0.0 |
---|
1065 | ENDIF |
---|
1066 | ! |
---|
1067 | ENDDO |
---|
1068 | ! |
---|
1069 | ENDDO |
---|
1070 | END SUBROUTINE interpol |
---|
1071 | |
---|
1072 | SUBROUTINE change_to_lowercase (str) |
---|
1073 | !--------------------------------------------------------------------- |
---|
1074 | !- Converts a string into lower case letters |
---|
1075 | !--------------------------------------------------------------------- |
---|
1076 | IMPLICIT NONE |
---|
1077 | !- |
---|
1078 | CHARACTER(LEN=*) :: str |
---|
1079 | !- |
---|
1080 | INTEGER :: i,ic |
---|
1081 | !--------------------------------------------------------------------- |
---|
1082 | DO i=1,LEN_TRIM(str) |
---|
1083 | ic = IACHAR(str(i:i)) |
---|
1084 | IF ( (ic >= 65).AND.(ic <= 90) ) str(i:i) = ACHAR(ic+32) |
---|
1085 | ENDDO |
---|
1086 | !-------------------------- |
---|
1087 | END SUBROUTINE change_to_lowercase |
---|
1088 | |
---|
1089 | END MODULE getlandseamask |
---|