[2352] | 1 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
---|
| 2 | ! |
---|
| 3 | ! This routine reads remapping information from files written |
---|
| 4 | ! by remap_setup. If remapping in both directions are required, |
---|
| 5 | ! two input files must be specified. |
---|
| 6 | ! |
---|
| 7 | !----------------------------------------------------------------------- |
---|
| 8 | ! |
---|
[5443] | 9 | ! CVS:$Id$ |
---|
[2352] | 10 | ! |
---|
| 11 | ! Copyright (c) 1997, 1998 the Regents of the University of |
---|
| 12 | ! California. |
---|
| 13 | ! |
---|
| 14 | ! This software and ancillary information (herein called software) |
---|
| 15 | ! called SCRIP is made available under the terms described here. |
---|
| 16 | ! The software has been approved for release with associated |
---|
| 17 | ! LA-CC Number 98-45. |
---|
| 18 | ! |
---|
| 19 | ! Unless otherwise indicated, this software has been authored |
---|
| 20 | ! by an employee or employees of the University of California, |
---|
| 21 | ! operator of the Los Alamos National Laboratory under Contract |
---|
| 22 | ! No. W-7405-ENG-36 with the U.S. Department of Energy. The U.S. |
---|
| 23 | ! Government has rights to use, reproduce, and distribute this |
---|
| 24 | ! software. The public may copy and use this software without |
---|
| 25 | ! charge, provided that this Notice and any statement of authorship |
---|
| 26 | ! are reproduced on all copies. Neither the Government nor the |
---|
| 27 | ! University makes any warranty, express or implied, or assumes |
---|
| 28 | ! any liability or responsibility for the use of this software. |
---|
| 29 | ! |
---|
| 30 | ! If software is modified to produce derivative works, such modified |
---|
| 31 | ! software should be clearly marked, so as not to confuse it with |
---|
| 32 | ! the version available from Los Alamos National Laboratory. |
---|
| 33 | ! |
---|
| 34 | !*********************************************************************** |
---|
| 35 | |
---|
| 36 | module remap_read |
---|
| 37 | |
---|
| 38 | !----------------------------------------------------------------------- |
---|
| 39 | ! |
---|
| 40 | ! contains routines for reading a remap file |
---|
| 41 | ! |
---|
| 42 | !----------------------------------------------------------------------- |
---|
| 43 | |
---|
| 44 | use kinds_mod ! defines common data types |
---|
| 45 | use constants ! defines useful constants |
---|
| 46 | use grids ! includes all grid information |
---|
| 47 | use netcdf_mod ! module with netcdf vars and utilities |
---|
| 48 | use remap_vars ! module for all required remapping variables |
---|
| 49 | |
---|
| 50 | implicit none |
---|
| 51 | |
---|
| 52 | !----------------------------------------------------------------------- |
---|
| 53 | ! |
---|
| 54 | ! module variables |
---|
| 55 | ! |
---|
| 56 | !----------------------------------------------------------------------- |
---|
| 57 | !----------------------------------------------------------------------- |
---|
| 58 | ! |
---|
| 59 | ! various netCDF ids for files variables |
---|
| 60 | ! |
---|
| 61 | !----------------------------------------------------------------------- |
---|
| 62 | |
---|
| 63 | integer (kind=int_kind), private :: & ! netCDF ids |
---|
| 64 | ncstat, nc_file_id, & |
---|
| 65 | nc_srcgrdsize_id, nc_dstgrdsize_id, & |
---|
| 66 | nc_srcgrdcorn_id, nc_dstgrdcorn_id, & |
---|
| 67 | nc_srcgrdrank_id, nc_dstgrdrank_id, & |
---|
| 68 | nc_srcgrddims_id, nc_dstgrddims_id, & |
---|
| 69 | nc_numlinks_id, nc_numwgts_id, & |
---|
| 70 | nc_srcgrdimask_id, nc_dstgrdimask_id, & |
---|
| 71 | nc_srcgrdcntrlat_id, nc_srcgrdcntrlon_id, & |
---|
| 72 | nc_srcgrdcrnrlat_id, nc_srcgrdcrnrlon_id, & |
---|
| 73 | nc_srcgrdarea_id, nc_srcgrdfrac_id, & |
---|
| 74 | nc_dstgrdcntrlat_id, nc_dstgrdcntrlon_id, & |
---|
| 75 | nc_dstgrdcrnrlat_id, nc_dstgrdcrnrlon_id, & |
---|
| 76 | nc_dstgrdarea_id, nc_dstgrdfrac_id, & |
---|
| 77 | nc_srcgrdadd_id, nc_dstgrdadd_id, nc_rmpmatrix_id |
---|
| 78 | |
---|
| 79 | !*********************************************************************** |
---|
| 80 | |
---|
| 81 | contains |
---|
| 82 | |
---|
| 83 | !*********************************************************************** |
---|
| 84 | |
---|
| 85 | subroutine read_remap(map_name, interp_file) |
---|
| 86 | |
---|
| 87 | !----------------------------------------------------------------------- |
---|
| 88 | ! |
---|
| 89 | ! this driver routine reads some global attributes and then |
---|
| 90 | ! calls a specific read routine based on file conventions |
---|
| 91 | ! |
---|
| 92 | !----------------------------------------------------------------------- |
---|
| 93 | |
---|
| 94 | !----------------------------------------------------------------------- |
---|
| 95 | ! |
---|
| 96 | ! input variables |
---|
| 97 | ! |
---|
| 98 | !----------------------------------------------------------------------- |
---|
| 99 | |
---|
| 100 | character(char_len), intent(in) :: & |
---|
| 101 | interp_file ! filename for remap data |
---|
| 102 | |
---|
| 103 | !----------------------------------------------------------------------- |
---|
| 104 | ! |
---|
| 105 | ! output variables |
---|
| 106 | ! |
---|
| 107 | !----------------------------------------------------------------------- |
---|
| 108 | |
---|
| 109 | character(char_len), intent(out) :: & |
---|
| 110 | map_name ! name for mapping |
---|
| 111 | |
---|
| 112 | !----------------------------------------------------------------------- |
---|
| 113 | ! |
---|
| 114 | ! local variables |
---|
| 115 | ! |
---|
| 116 | !----------------------------------------------------------------------- |
---|
| 117 | |
---|
| 118 | character(char_len) :: & |
---|
| 119 | map_method & ! character string for map_type |
---|
| 120 | , normalize_opt & ! character string for normalization option |
---|
| 121 | , convention ! character string for output convention |
---|
| 122 | |
---|
| 123 | !----------------------------------------------------------------------- |
---|
| 124 | ! |
---|
| 125 | ! open file and read some global information |
---|
| 126 | ! |
---|
| 127 | !----------------------------------------------------------------------- |
---|
| 128 | |
---|
| 129 | ncstat = nf_open(interp_file, NF_NOWRITE, nc_file_id) |
---|
| 130 | call netcdf_error_handler(ncstat) |
---|
| 131 | |
---|
| 132 | !*** |
---|
| 133 | !*** map name |
---|
| 134 | !*** |
---|
| 135 | map_name = ' ' |
---|
| 136 | ncstat = nf_get_att_text(nc_file_id, NF_GLOBAL, 'title', & |
---|
| 137 | map_name) |
---|
| 138 | call netcdf_error_handler(ncstat) |
---|
| 139 | |
---|
| 140 | print *,'Reading remapping:',trim(map_name) |
---|
| 141 | print *,'From file:',trim(interp_file) |
---|
| 142 | |
---|
| 143 | !*** |
---|
| 144 | !*** normalization option |
---|
| 145 | !*** |
---|
| 146 | normalize_opt = ' ' |
---|
| 147 | ncstat = nf_get_att_text(nc_file_id, NF_GLOBAL, 'normalization', & |
---|
| 148 | normalize_opt) |
---|
| 149 | call netcdf_error_handler(ncstat) |
---|
| 150 | |
---|
| 151 | select case(normalize_opt) |
---|
| 152 | case ('none') |
---|
| 153 | norm_opt = norm_opt_none |
---|
| 154 | case ('fracarea') |
---|
| 155 | norm_opt = norm_opt_frcarea |
---|
| 156 | case ('destarea') |
---|
| 157 | norm_opt = norm_opt_dstarea |
---|
| 158 | case default |
---|
| 159 | print *,'normalize_opt = ',normalize_opt |
---|
| 160 | stop 'Invalid normalization option' |
---|
| 161 | end select |
---|
| 162 | |
---|
| 163 | !*** |
---|
| 164 | !*** map method |
---|
| 165 | !*** |
---|
| 166 | map_method = ' ' |
---|
| 167 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'map_method', & |
---|
| 168 | map_method) |
---|
| 169 | call netcdf_error_handler(ncstat) |
---|
| 170 | |
---|
| 171 | select case(map_method) |
---|
| 172 | case('Conservative remapping') |
---|
| 173 | map_type = map_type_conserv |
---|
| 174 | case('Bilinear remapping') |
---|
| 175 | map_type = map_type_bilinear |
---|
| 176 | case('Distance weighted avg of nearest neighbors') |
---|
| 177 | map_type = map_type_distwgt |
---|
| 178 | case('Bicubic remapping') |
---|
| 179 | map_type = map_type_bicubic |
---|
| 180 | case default |
---|
| 181 | print *,'map_type = ',map_method |
---|
| 182 | stop 'Invalid Map Type' |
---|
| 183 | end select |
---|
| 184 | |
---|
| 185 | !*** |
---|
| 186 | !*** file convention |
---|
| 187 | !*** |
---|
| 188 | convention = ' ' |
---|
| 189 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'conventions', & |
---|
| 190 | convention) |
---|
| 191 | call netcdf_error_handler(ncstat) |
---|
| 192 | |
---|
| 193 | !----------------------------------------------------------------------- |
---|
| 194 | ! |
---|
| 195 | ! call appropriate read routine based on output convention |
---|
| 196 | ! |
---|
| 197 | !----------------------------------------------------------------------- |
---|
| 198 | |
---|
| 199 | select case(convention) |
---|
| 200 | case ('SCRIP') |
---|
| 201 | call read_remap_scrip |
---|
| 202 | case ('NCAR-CSM') |
---|
| 203 | call read_remap_csm |
---|
| 204 | case default |
---|
| 205 | print *,'convention = ',convention |
---|
| 206 | stop 'unknown output file convention' |
---|
| 207 | end select |
---|
| 208 | |
---|
| 209 | !----------------------------------------------------------------------- |
---|
| 210 | |
---|
| 211 | end subroutine read_remap |
---|
| 212 | |
---|
| 213 | !*********************************************************************** |
---|
| 214 | |
---|
| 215 | subroutine read_remap_scrip |
---|
| 216 | |
---|
| 217 | !----------------------------------------------------------------------- |
---|
| 218 | ! |
---|
| 219 | ! the routine reads a netCDF file to extract remapping info |
---|
| 220 | ! in SCRIP format |
---|
| 221 | ! |
---|
| 222 | !----------------------------------------------------------------------- |
---|
| 223 | !----------------------------------------------------------------------- |
---|
| 224 | ! |
---|
| 225 | ! local variables |
---|
| 226 | ! |
---|
| 227 | !----------------------------------------------------------------------- |
---|
| 228 | |
---|
| 229 | character (char_len) :: & |
---|
| 230 | grid1_name & ! grid name for source grid |
---|
| 231 | , grid2_name ! grid name for dest grid |
---|
| 232 | |
---|
| 233 | integer (kind=int_kind) :: & |
---|
| 234 | n ! dummy index |
---|
| 235 | |
---|
| 236 | integer (kind=int_kind), dimension(:), allocatable :: & |
---|
| 237 | grid1_mask_int, & ! integer masks to determine |
---|
| 238 | grid2_mask_int ! cells that participate in map |
---|
| 239 | |
---|
| 240 | !----------------------------------------------------------------------- |
---|
| 241 | ! |
---|
| 242 | ! read some additional global attributes |
---|
| 243 | ! |
---|
| 244 | !----------------------------------------------------------------------- |
---|
| 245 | |
---|
| 246 | !*** |
---|
| 247 | !*** source and destination grid names |
---|
| 248 | !*** |
---|
| 249 | |
---|
| 250 | grid1_name = ' ' |
---|
| 251 | grid2_name = ' ' |
---|
| 252 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'source_grid', & |
---|
| 253 | grid1_name) |
---|
| 254 | call netcdf_error_handler(ncstat) |
---|
| 255 | |
---|
| 256 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'dest_grid', & |
---|
| 257 | grid2_name) |
---|
| 258 | call netcdf_error_handler(ncstat) |
---|
| 259 | |
---|
| 260 | print *,' ' |
---|
| 261 | print *,'Remapping between:',trim(grid1_name) |
---|
| 262 | print *,'and ',trim(grid2_name) |
---|
| 263 | print *,' ' |
---|
| 264 | |
---|
| 265 | !----------------------------------------------------------------------- |
---|
| 266 | ! |
---|
| 267 | ! read dimension information |
---|
| 268 | ! |
---|
| 269 | !----------------------------------------------------------------------- |
---|
| 270 | |
---|
| 271 | ncstat = nf_inq_dimid(nc_file_id, 'src_grid_size', & |
---|
| 272 | nc_srcgrdsize_id) |
---|
| 273 | call netcdf_error_handler(ncstat) |
---|
| 274 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdsize_id, grid1_size) |
---|
| 275 | call netcdf_error_handler(ncstat) |
---|
| 276 | |
---|
| 277 | ncstat = nf_inq_dimid(nc_file_id, 'dst_grid_size', & |
---|
| 278 | nc_dstgrdsize_id) |
---|
| 279 | call netcdf_error_handler(ncstat) |
---|
| 280 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdsize_id, grid2_size) |
---|
| 281 | call netcdf_error_handler(ncstat) |
---|
| 282 | |
---|
| 283 | ncstat = nf_inq_dimid(nc_file_id, 'src_grid_corners', & |
---|
| 284 | nc_srcgrdcorn_id) |
---|
| 285 | call netcdf_error_handler(ncstat) |
---|
| 286 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdcorn_id, & |
---|
| 287 | grid1_corners) |
---|
| 288 | call netcdf_error_handler(ncstat) |
---|
| 289 | |
---|
| 290 | ncstat = nf_inq_dimid(nc_file_id, 'dst_grid_corners', & |
---|
| 291 | nc_dstgrdcorn_id) |
---|
| 292 | call netcdf_error_handler(ncstat) |
---|
| 293 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdcorn_id, & |
---|
| 294 | grid2_corners) |
---|
| 295 | call netcdf_error_handler(ncstat) |
---|
| 296 | |
---|
| 297 | ncstat = nf_inq_dimid(nc_file_id, 'src_grid_rank', & |
---|
| 298 | nc_srcgrdrank_id) |
---|
| 299 | call netcdf_error_handler(ncstat) |
---|
| 300 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdrank_id, & |
---|
| 301 | grid1_rank) |
---|
| 302 | call netcdf_error_handler(ncstat) |
---|
| 303 | |
---|
| 304 | ncstat = nf_inq_dimid(nc_file_id, 'dst_grid_rank', & |
---|
| 305 | nc_dstgrdrank_id) |
---|
| 306 | call netcdf_error_handler(ncstat) |
---|
| 307 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdrank_id, & |
---|
| 308 | grid2_rank) |
---|
| 309 | call netcdf_error_handler(ncstat) |
---|
| 310 | |
---|
| 311 | ncstat = nf_inq_dimid(nc_file_id, 'num_links', & |
---|
| 312 | nc_numlinks_id) |
---|
| 313 | call netcdf_error_handler(ncstat) |
---|
| 314 | ncstat = nf_inq_dimlen(nc_file_id, nc_numlinks_id, & |
---|
| 315 | num_links_map1) |
---|
| 316 | call netcdf_error_handler(ncstat) |
---|
| 317 | |
---|
| 318 | ncstat = nf_inq_dimid(nc_file_id, 'num_wgts', & |
---|
| 319 | nc_numwgts_id) |
---|
| 320 | call netcdf_error_handler(ncstat) |
---|
| 321 | ncstat = nf_inq_dimlen(nc_file_id, nc_numwgts_id, num_wts) |
---|
| 322 | call netcdf_error_handler(ncstat) |
---|
| 323 | |
---|
| 324 | !----------------------------------------------------------------------- |
---|
| 325 | ! |
---|
| 326 | ! allocate arrays |
---|
| 327 | ! |
---|
| 328 | !----------------------------------------------------------------------- |
---|
| 329 | |
---|
| 330 | allocate( grid1_dims (grid1_rank), & |
---|
| 331 | grid1_center_lat(grid1_size), & |
---|
| 332 | grid1_center_lon(grid1_size), & |
---|
| 333 | grid1_area (grid1_size), & |
---|
| 334 | grid1_frac (grid1_size), & |
---|
| 335 | grid1_mask (grid1_size), & |
---|
| 336 | grid1_mask_int (grid1_size), & |
---|
| 337 | grid1_corner_lat(grid1_corners, grid1_size), & |
---|
| 338 | grid1_corner_lon(grid1_corners, grid1_size) ) |
---|
| 339 | |
---|
| 340 | allocate( grid2_dims (grid2_rank), & |
---|
| 341 | grid2_center_lat(grid2_size), & |
---|
| 342 | grid2_center_lon(grid2_size), & |
---|
| 343 | grid2_area (grid2_size), & |
---|
| 344 | grid2_frac (grid2_size), & |
---|
| 345 | grid2_mask (grid2_size), & |
---|
| 346 | grid2_mask_int (grid2_size), & |
---|
| 347 | grid2_corner_lat(grid2_corners, grid2_size), & |
---|
| 348 | grid2_corner_lon(grid2_corners, grid2_size) ) |
---|
| 349 | |
---|
| 350 | allocate( grid1_add_map1(num_links_map1), & |
---|
| 351 | grid2_add_map1(num_links_map1), & |
---|
| 352 | wts_map1(num_wts,num_links_map1) ) |
---|
| 353 | |
---|
| 354 | !----------------------------------------------------------------------- |
---|
| 355 | ! |
---|
| 356 | ! get variable ids |
---|
| 357 | ! |
---|
| 358 | !----------------------------------------------------------------------- |
---|
| 359 | |
---|
| 360 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_dims', & |
---|
| 361 | nc_srcgrddims_id) |
---|
| 362 | call netcdf_error_handler(ncstat) |
---|
| 363 | |
---|
| 364 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_imask', & |
---|
| 365 | nc_srcgrdimask_id) |
---|
| 366 | call netcdf_error_handler(ncstat) |
---|
| 367 | |
---|
| 368 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_center_lat', & |
---|
| 369 | nc_srcgrdcntrlat_id) |
---|
| 370 | call netcdf_error_handler(ncstat) |
---|
| 371 | |
---|
| 372 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_center_lon', & |
---|
| 373 | nc_srcgrdcntrlon_id) |
---|
| 374 | call netcdf_error_handler(ncstat) |
---|
| 375 | |
---|
| 376 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_corner_lat', & |
---|
| 377 | nc_srcgrdcrnrlat_id) |
---|
| 378 | call netcdf_error_handler(ncstat) |
---|
| 379 | |
---|
| 380 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_corner_lon', & |
---|
| 381 | nc_srcgrdcrnrlon_id) |
---|
| 382 | call netcdf_error_handler(ncstat) |
---|
| 383 | |
---|
| 384 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_area', & |
---|
| 385 | nc_srcgrdarea_id) |
---|
| 386 | call netcdf_error_handler(ncstat) |
---|
| 387 | |
---|
| 388 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_frac', & |
---|
| 389 | nc_srcgrdfrac_id) |
---|
| 390 | call netcdf_error_handler(ncstat) |
---|
| 391 | |
---|
| 392 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_dims', & |
---|
| 393 | nc_dstgrddims_id) |
---|
| 394 | call netcdf_error_handler(ncstat) |
---|
| 395 | |
---|
| 396 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_imask', & |
---|
| 397 | nc_dstgrdimask_id) |
---|
| 398 | call netcdf_error_handler(ncstat) |
---|
| 399 | |
---|
| 400 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_center_lat', & |
---|
| 401 | nc_dstgrdcntrlat_id) |
---|
| 402 | call netcdf_error_handler(ncstat) |
---|
| 403 | |
---|
| 404 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_center_lon', & |
---|
| 405 | nc_dstgrdcntrlon_id) |
---|
| 406 | call netcdf_error_handler(ncstat) |
---|
| 407 | |
---|
| 408 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_corner_lat', & |
---|
| 409 | nc_dstgrdcrnrlat_id) |
---|
| 410 | call netcdf_error_handler(ncstat) |
---|
| 411 | |
---|
| 412 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_corner_lon', & |
---|
| 413 | nc_dstgrdcrnrlon_id) |
---|
| 414 | call netcdf_error_handler(ncstat) |
---|
| 415 | |
---|
| 416 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_area', & |
---|
| 417 | nc_dstgrdarea_id) |
---|
| 418 | call netcdf_error_handler(ncstat) |
---|
| 419 | |
---|
| 420 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_frac', & |
---|
| 421 | nc_dstgrdfrac_id) |
---|
| 422 | call netcdf_error_handler(ncstat) |
---|
| 423 | |
---|
| 424 | ncstat = nf_inq_varid(nc_file_id, 'src_address', & |
---|
| 425 | nc_srcgrdadd_id) |
---|
| 426 | call netcdf_error_handler(ncstat) |
---|
| 427 | |
---|
| 428 | ncstat = nf_inq_varid(nc_file_id, 'dst_address', & |
---|
| 429 | nc_dstgrdadd_id) |
---|
| 430 | call netcdf_error_handler(ncstat) |
---|
| 431 | |
---|
| 432 | ncstat = nf_inq_varid(nc_file_id, 'remap_matrix', & |
---|
| 433 | nc_rmpmatrix_id) |
---|
| 434 | call netcdf_error_handler(ncstat) |
---|
| 435 | |
---|
| 436 | !----------------------------------------------------------------------- |
---|
| 437 | ! |
---|
| 438 | ! read all variables |
---|
| 439 | ! |
---|
| 440 | !----------------------------------------------------------------------- |
---|
| 441 | |
---|
| 442 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrddims_id, & |
---|
| 443 | grid1_dims) |
---|
| 444 | call netcdf_error_handler(ncstat) |
---|
| 445 | |
---|
| 446 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrdimask_id, & |
---|
| 447 | grid1_mask_int) |
---|
| 448 | call netcdf_error_handler(ncstat) |
---|
| 449 | |
---|
| 450 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcntrlat_id, & |
---|
| 451 | grid1_center_lat) |
---|
| 452 | call netcdf_error_handler(ncstat) |
---|
| 453 | |
---|
| 454 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcntrlon_id, & |
---|
| 455 | grid1_center_lon) |
---|
| 456 | call netcdf_error_handler(ncstat) |
---|
| 457 | |
---|
| 458 | grid1_units = ' ' |
---|
| 459 | ncstat = nf_get_att_text(nc_file_id, nc_srcgrdcntrlat_id, 'units', & |
---|
| 460 | grid1_units) |
---|
| 461 | call netcdf_error_handler(ncstat) |
---|
| 462 | |
---|
| 463 | select case (grid1_units(1:7)) |
---|
| 464 | case ('degrees') |
---|
| 465 | grid1_center_lat = grid1_center_lat*deg2rad |
---|
| 466 | grid1_center_lon = grid1_center_lon*deg2rad |
---|
| 467 | case ('radians') |
---|
| 468 | !*** no conversion necessary |
---|
| 469 | case default |
---|
| 470 | print *,'unknown units supplied for grid1 center lat/lon: ' |
---|
| 471 | print *,'proceeding assuming radians' |
---|
| 472 | end select |
---|
| 473 | |
---|
| 474 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcrnrlat_id, & |
---|
| 475 | grid1_corner_lat) |
---|
| 476 | call netcdf_error_handler(ncstat) |
---|
| 477 | |
---|
| 478 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcrnrlon_id, & |
---|
| 479 | grid1_corner_lon) |
---|
| 480 | call netcdf_error_handler(ncstat) |
---|
| 481 | |
---|
| 482 | grid1_units = ' ' |
---|
| 483 | ncstat = nf_get_att_text(nc_file_id, nc_srcgrdcrnrlat_id, 'units', & |
---|
| 484 | grid1_units) |
---|
| 485 | call netcdf_error_handler(ncstat) |
---|
| 486 | |
---|
| 487 | select case (grid1_units(1:7)) |
---|
| 488 | case ('degrees') |
---|
| 489 | grid1_corner_lat = grid1_corner_lat*deg2rad |
---|
| 490 | grid1_corner_lon = grid1_corner_lon*deg2rad |
---|
| 491 | case ('radians') |
---|
| 492 | !*** no conversion necessary |
---|
| 493 | case default |
---|
| 494 | print *,'unknown units supplied for grid1 corner lat/lon: ' |
---|
| 495 | print *,'proceeding assuming radians' |
---|
| 496 | end select |
---|
| 497 | |
---|
| 498 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdarea_id, & |
---|
| 499 | grid1_area) |
---|
| 500 | call netcdf_error_handler(ncstat) |
---|
| 501 | |
---|
| 502 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdfrac_id, & |
---|
| 503 | grid1_frac) |
---|
| 504 | call netcdf_error_handler(ncstat) |
---|
| 505 | |
---|
| 506 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrddims_id, & |
---|
| 507 | grid2_dims) |
---|
| 508 | call netcdf_error_handler(ncstat) |
---|
| 509 | |
---|
| 510 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrdimask_id, & |
---|
| 511 | grid2_mask_int) |
---|
| 512 | call netcdf_error_handler(ncstat) |
---|
| 513 | |
---|
| 514 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcntrlat_id, & |
---|
| 515 | grid2_center_lat) |
---|
| 516 | call netcdf_error_handler(ncstat) |
---|
| 517 | |
---|
| 518 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcntrlon_id, & |
---|
| 519 | grid2_center_lon) |
---|
| 520 | call netcdf_error_handler(ncstat) |
---|
| 521 | |
---|
| 522 | grid2_units = ' ' |
---|
| 523 | ncstat = nf_get_att_text(nc_file_id, nc_dstgrdcntrlat_id, 'units', & |
---|
| 524 | grid2_units) |
---|
| 525 | call netcdf_error_handler(ncstat) |
---|
| 526 | |
---|
| 527 | select case (grid2_units(1:7)) |
---|
| 528 | case ('degrees') |
---|
| 529 | grid2_center_lat = grid2_center_lat*deg2rad |
---|
| 530 | grid2_center_lon = grid2_center_lon*deg2rad |
---|
| 531 | case ('radians') |
---|
| 532 | !*** no conversion necessary |
---|
| 533 | case default |
---|
| 534 | print *,'unknown units supplied for grid2 center lat/lon: ' |
---|
| 535 | print *,'proceeding assuming radians' |
---|
| 536 | end select |
---|
| 537 | |
---|
| 538 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcrnrlat_id, & |
---|
| 539 | grid2_corner_lat) |
---|
| 540 | call netcdf_error_handler(ncstat) |
---|
| 541 | |
---|
| 542 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcrnrlon_id, & |
---|
| 543 | grid2_corner_lon) |
---|
| 544 | call netcdf_error_handler(ncstat) |
---|
| 545 | |
---|
| 546 | grid2_units = ' ' |
---|
| 547 | ncstat = nf_get_att_text(nc_file_id, nc_dstgrdcrnrlat_id, 'units', & |
---|
| 548 | grid2_units) |
---|
| 549 | call netcdf_error_handler(ncstat) |
---|
| 550 | |
---|
| 551 | select case (grid2_units(1:7)) |
---|
| 552 | case ('degrees') |
---|
| 553 | grid2_corner_lat = grid2_corner_lat*deg2rad |
---|
| 554 | grid2_corner_lon = grid2_corner_lon*deg2rad |
---|
| 555 | case ('radians') |
---|
| 556 | !*** no conversion necessary |
---|
| 557 | case default |
---|
| 558 | print *,'unknown units supplied for grid2 corner lat/lon: ' |
---|
| 559 | print *,'proceeding assuming radians' |
---|
| 560 | end select |
---|
| 561 | |
---|
| 562 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdarea_id, & |
---|
| 563 | grid2_area) |
---|
| 564 | call netcdf_error_handler(ncstat) |
---|
| 565 | |
---|
| 566 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdfrac_id, & |
---|
| 567 | grid2_frac) |
---|
| 568 | call netcdf_error_handler(ncstat) |
---|
| 569 | |
---|
| 570 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrdadd_id, & |
---|
| 571 | grid1_add_map1) |
---|
| 572 | call netcdf_error_handler(ncstat) |
---|
| 573 | |
---|
| 574 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrdadd_id, & |
---|
| 575 | grid2_add_map1) |
---|
| 576 | call netcdf_error_handler(ncstat) |
---|
| 577 | |
---|
| 578 | ncstat = nf_get_var_double(nc_file_id, nc_rmpmatrix_id, & |
---|
| 579 | wts_map1) |
---|
| 580 | call netcdf_error_handler(ncstat) |
---|
| 581 | |
---|
| 582 | !----------------------------------------------------------------------- |
---|
| 583 | ! |
---|
| 584 | ! initialize logical mask |
---|
| 585 | ! |
---|
| 586 | !----------------------------------------------------------------------- |
---|
| 587 | |
---|
| 588 | where (grid1_mask_int == 1) |
---|
| 589 | grid1_mask = .true. |
---|
| 590 | elsewhere |
---|
| 591 | grid1_mask = .false. |
---|
| 592 | endwhere |
---|
| 593 | where (grid2_mask_int == 1) |
---|
| 594 | grid2_mask = .true. |
---|
| 595 | elsewhere |
---|
| 596 | grid2_mask = .false. |
---|
| 597 | endwhere |
---|
| 598 | deallocate(grid1_mask_int, grid2_mask_int) |
---|
| 599 | |
---|
| 600 | !----------------------------------------------------------------------- |
---|
| 601 | ! |
---|
| 602 | ! close input file |
---|
| 603 | ! |
---|
| 604 | !----------------------------------------------------------------------- |
---|
| 605 | |
---|
| 606 | ncstat = nf_close(nc_file_id) |
---|
| 607 | call netcdf_error_handler(ncstat) |
---|
| 608 | |
---|
| 609 | !----------------------------------------------------------------------- |
---|
| 610 | |
---|
| 611 | end subroutine read_remap_scrip |
---|
| 612 | |
---|
| 613 | !*********************************************************************** |
---|
| 614 | |
---|
| 615 | subroutine read_remap_csm |
---|
| 616 | |
---|
| 617 | !----------------------------------------------------------------------- |
---|
| 618 | ! |
---|
| 619 | ! the routine reads a netCDF file to extract remapping info |
---|
| 620 | ! in NCAR-CSM format |
---|
| 621 | ! |
---|
| 622 | !----------------------------------------------------------------------- |
---|
| 623 | !----------------------------------------------------------------------- |
---|
| 624 | ! |
---|
| 625 | ! local variables |
---|
| 626 | ! |
---|
| 627 | !----------------------------------------------------------------------- |
---|
| 628 | |
---|
| 629 | character (char_len) :: & |
---|
| 630 | grid1_name & ! grid name for source grid |
---|
| 631 | , grid2_name ! grid name for dest grid |
---|
| 632 | |
---|
| 633 | integer (kind=int_kind) :: & |
---|
| 634 | nc_numwgts1_id & ! extra netCDF id for num_wgts > 1 |
---|
| 635 | , nc_rmpmatrix2_id ! extra netCDF id for high-order remap matrix |
---|
| 636 | |
---|
| 637 | real (kind=dbl_kind), dimension(:),allocatable :: & |
---|
| 638 | wts1 ! CSM wants single array for 1st-order wts |
---|
| 639 | |
---|
| 640 | real (kind=dbl_kind), dimension(:,:),allocatable :: & |
---|
| 641 | wts2 ! write remaining weights in different array |
---|
| 642 | |
---|
| 643 | integer (kind=int_kind) :: & |
---|
| 644 | n ! dummy index |
---|
| 645 | |
---|
| 646 | integer (kind=int_kind), dimension(:), allocatable :: & |
---|
| 647 | grid1_mask_int, & ! integer masks to determine |
---|
| 648 | grid2_mask_int ! cells that participate in map |
---|
| 649 | |
---|
| 650 | !----------------------------------------------------------------------- |
---|
| 651 | ! |
---|
| 652 | ! read some additional global attributes |
---|
| 653 | ! |
---|
| 654 | !----------------------------------------------------------------------- |
---|
| 655 | |
---|
| 656 | !*** |
---|
| 657 | !*** source and destination grid names |
---|
| 658 | !*** |
---|
| 659 | |
---|
| 660 | grid1_name = ' ' |
---|
| 661 | grid2_name = ' ' |
---|
| 662 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'domain_a', & |
---|
| 663 | grid1_name) |
---|
| 664 | call netcdf_error_handler(ncstat) |
---|
| 665 | |
---|
| 666 | ncstat = nf_get_att_text (nc_file_id, NF_GLOBAL, 'domain_b', & |
---|
| 667 | grid2_name) |
---|
| 668 | call netcdf_error_handler(ncstat) |
---|
| 669 | |
---|
| 670 | print *,' ' |
---|
| 671 | print *,'Remapping between:',trim(grid1_name) |
---|
| 672 | print *,'and ',trim(grid2_name) |
---|
| 673 | print *,' ' |
---|
| 674 | |
---|
| 675 | !----------------------------------------------------------------------- |
---|
| 676 | ! |
---|
| 677 | ! read dimension information |
---|
| 678 | ! |
---|
| 679 | !----------------------------------------------------------------------- |
---|
| 680 | |
---|
| 681 | ncstat = nf_inq_dimid(nc_file_id, 'n_a', nc_srcgrdsize_id) |
---|
| 682 | call netcdf_error_handler(ncstat) |
---|
| 683 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdsize_id, grid1_size) |
---|
| 684 | call netcdf_error_handler(ncstat) |
---|
| 685 | |
---|
| 686 | ncstat = nf_inq_dimid(nc_file_id, 'n_b', nc_dstgrdsize_id) |
---|
| 687 | call netcdf_error_handler(ncstat) |
---|
| 688 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdsize_id, grid2_size) |
---|
| 689 | call netcdf_error_handler(ncstat) |
---|
| 690 | |
---|
| 691 | ncstat = nf_inq_dimid(nc_file_id, 'nv_a', nc_srcgrdcorn_id) |
---|
| 692 | call netcdf_error_handler(ncstat) |
---|
| 693 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdcorn_id, & |
---|
| 694 | grid1_corners) |
---|
| 695 | call netcdf_error_handler(ncstat) |
---|
| 696 | |
---|
| 697 | ncstat = nf_inq_dimid(nc_file_id, 'nv_b', nc_dstgrdcorn_id) |
---|
| 698 | call netcdf_error_handler(ncstat) |
---|
| 699 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdcorn_id, & |
---|
| 700 | grid2_corners) |
---|
| 701 | call netcdf_error_handler(ncstat) |
---|
| 702 | |
---|
| 703 | ncstat = nf_inq_dimid(nc_file_id, 'src_grid_rank', & |
---|
| 704 | nc_srcgrdrank_id) |
---|
| 705 | call netcdf_error_handler(ncstat) |
---|
| 706 | ncstat = nf_inq_dimlen(nc_file_id, nc_srcgrdrank_id, & |
---|
| 707 | grid1_rank) |
---|
| 708 | call netcdf_error_handler(ncstat) |
---|
| 709 | |
---|
| 710 | ncstat = nf_inq_dimid(nc_file_id, 'dst_grid_rank', & |
---|
| 711 | nc_dstgrdrank_id) |
---|
| 712 | call netcdf_error_handler(ncstat) |
---|
| 713 | ncstat = nf_inq_dimlen(nc_file_id, nc_dstgrdrank_id, & |
---|
| 714 | grid2_rank) |
---|
| 715 | call netcdf_error_handler(ncstat) |
---|
| 716 | |
---|
| 717 | ncstat = nf_inq_dimid(nc_file_id, 'n_s', & |
---|
| 718 | nc_numlinks_id) |
---|
| 719 | call netcdf_error_handler(ncstat) |
---|
| 720 | ncstat = nf_inq_dimlen(nc_file_id, nc_numlinks_id, & |
---|
| 721 | num_links_map1) |
---|
| 722 | call netcdf_error_handler(ncstat) |
---|
| 723 | |
---|
| 724 | ncstat = nf_inq_dimid(nc_file_id, 'num_wgts', & |
---|
| 725 | nc_numwgts_id) |
---|
| 726 | call netcdf_error_handler(ncstat) |
---|
| 727 | ncstat = nf_inq_dimlen(nc_file_id, nc_numwgts_id, num_wts) |
---|
| 728 | call netcdf_error_handler(ncstat) |
---|
| 729 | |
---|
| 730 | if (num_wts > 1) then |
---|
| 731 | ncstat = nf_inq_dimid(nc_file_id, 'num_wgts1', & |
---|
| 732 | nc_numwgts1_id) |
---|
| 733 | call netcdf_error_handler(ncstat) |
---|
| 734 | endif |
---|
| 735 | |
---|
| 736 | !----------------------------------------------------------------------- |
---|
| 737 | ! |
---|
| 738 | ! allocate arrays |
---|
| 739 | ! |
---|
| 740 | !----------------------------------------------------------------------- |
---|
| 741 | |
---|
| 742 | allocate( grid1_dims (grid1_rank), & |
---|
| 743 | grid1_center_lat(grid1_size), & |
---|
| 744 | grid1_center_lon(grid1_size), & |
---|
| 745 | grid1_area (grid1_size), & |
---|
| 746 | grid1_frac (grid1_size), & |
---|
| 747 | grid1_mask (grid1_size), & |
---|
| 748 | grid1_mask_int (grid1_size), & |
---|
| 749 | grid1_corner_lat(grid1_corners, grid1_size), & |
---|
| 750 | grid1_corner_lon(grid1_corners, grid1_size) ) |
---|
| 751 | |
---|
| 752 | allocate( grid2_dims (grid2_rank), & |
---|
| 753 | grid2_center_lat(grid2_size), & |
---|
| 754 | grid2_center_lon(grid2_size), & |
---|
| 755 | grid2_area (grid2_size), & |
---|
| 756 | grid2_frac (grid2_size), & |
---|
| 757 | grid2_mask (grid2_size), & |
---|
| 758 | grid2_mask_int (grid2_size), & |
---|
| 759 | grid2_corner_lat(grid2_corners, grid2_size), & |
---|
| 760 | grid2_corner_lon(grid2_corners, grid2_size) ) |
---|
| 761 | |
---|
| 762 | allocate( grid1_add_map1(num_links_map1), & |
---|
| 763 | grid2_add_map1(num_links_map1), & |
---|
| 764 | wts_map1(num_wts,num_links_map1), & |
---|
| 765 | wts1(num_links_map1), & |
---|
| 766 | wts2(num_wts-1,num_links_map1) ) |
---|
| 767 | |
---|
| 768 | !----------------------------------------------------------------------- |
---|
| 769 | ! |
---|
| 770 | ! get variable ids |
---|
| 771 | ! |
---|
| 772 | !----------------------------------------------------------------------- |
---|
| 773 | |
---|
| 774 | ncstat = nf_inq_varid(nc_file_id, 'src_grid_dims', & |
---|
| 775 | nc_srcgrddims_id) |
---|
| 776 | call netcdf_error_handler(ncstat) |
---|
| 777 | |
---|
| 778 | ncstat = nf_inq_varid(nc_file_id, 'mask_a', & |
---|
| 779 | nc_srcgrdimask_id) |
---|
| 780 | call netcdf_error_handler(ncstat) |
---|
| 781 | |
---|
| 782 | ncstat = nf_inq_varid(nc_file_id, 'yc_a', nc_srcgrdcntrlat_id) |
---|
| 783 | call netcdf_error_handler(ncstat) |
---|
| 784 | |
---|
| 785 | ncstat = nf_inq_varid(nc_file_id, 'xc_a', nc_srcgrdcntrlon_id) |
---|
| 786 | call netcdf_error_handler(ncstat) |
---|
| 787 | |
---|
| 788 | ncstat = nf_inq_varid(nc_file_id, 'yv_a', nc_srcgrdcrnrlat_id) |
---|
| 789 | call netcdf_error_handler(ncstat) |
---|
| 790 | |
---|
| 791 | ncstat = nf_inq_varid(nc_file_id, 'xv_a', nc_srcgrdcrnrlon_id) |
---|
| 792 | call netcdf_error_handler(ncstat) |
---|
| 793 | |
---|
| 794 | ncstat = nf_inq_varid(nc_file_id, 'area_a', nc_srcgrdarea_id) |
---|
| 795 | call netcdf_error_handler(ncstat) |
---|
| 796 | |
---|
| 797 | ncstat = nf_inq_varid(nc_file_id, 'frac_a', nc_srcgrdfrac_id) |
---|
| 798 | call netcdf_error_handler(ncstat) |
---|
| 799 | |
---|
| 800 | ncstat = nf_inq_varid(nc_file_id, 'dst_grid_dims', & |
---|
| 801 | nc_dstgrddims_id) |
---|
| 802 | call netcdf_error_handler(ncstat) |
---|
| 803 | |
---|
| 804 | ncstat = nf_inq_varid(nc_file_id, 'mask_b', & |
---|
| 805 | nc_dstgrdimask_id) |
---|
| 806 | call netcdf_error_handler(ncstat) |
---|
| 807 | |
---|
| 808 | ncstat = nf_inq_varid(nc_file_id, 'yc_b', nc_dstgrdcntrlat_id) |
---|
| 809 | call netcdf_error_handler(ncstat) |
---|
| 810 | |
---|
| 811 | ncstat = nf_inq_varid(nc_file_id, 'xc_b', nc_dstgrdcntrlon_id) |
---|
| 812 | call netcdf_error_handler(ncstat) |
---|
| 813 | |
---|
| 814 | ncstat = nf_inq_varid(nc_file_id, 'yv_b', nc_dstgrdcrnrlat_id) |
---|
| 815 | call netcdf_error_handler(ncstat) |
---|
| 816 | |
---|
| 817 | ncstat = nf_inq_varid(nc_file_id, 'xv_b', nc_dstgrdcrnrlon_id) |
---|
| 818 | call netcdf_error_handler(ncstat) |
---|
| 819 | |
---|
| 820 | ncstat = nf_inq_varid(nc_file_id, 'area_b', nc_dstgrdarea_id) |
---|
| 821 | call netcdf_error_handler(ncstat) |
---|
| 822 | |
---|
| 823 | ncstat = nf_inq_varid(nc_file_id, 'frac_b', nc_dstgrdfrac_id) |
---|
| 824 | call netcdf_error_handler(ncstat) |
---|
| 825 | |
---|
| 826 | ncstat = nf_inq_varid(nc_file_id, 'col', nc_srcgrdadd_id) |
---|
| 827 | call netcdf_error_handler(ncstat) |
---|
| 828 | |
---|
| 829 | ncstat = nf_inq_varid(nc_file_id, 'row', nc_dstgrdadd_id) |
---|
| 830 | call netcdf_error_handler(ncstat) |
---|
| 831 | |
---|
| 832 | ncstat = nf_inq_varid(nc_file_id, 'S', nc_rmpmatrix_id) |
---|
| 833 | call netcdf_error_handler(ncstat) |
---|
| 834 | |
---|
| 835 | if (num_wts > 1) then |
---|
| 836 | ncstat = nf_inq_varid(nc_file_id, 'S2', nc_rmpmatrix2_id) |
---|
| 837 | call netcdf_error_handler(ncstat) |
---|
| 838 | endif |
---|
| 839 | |
---|
| 840 | !----------------------------------------------------------------------- |
---|
| 841 | ! |
---|
| 842 | ! read all variables |
---|
| 843 | ! |
---|
| 844 | !----------------------------------------------------------------------- |
---|
| 845 | |
---|
| 846 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrddims_id, & |
---|
| 847 | grid1_dims) |
---|
| 848 | call netcdf_error_handler(ncstat) |
---|
| 849 | |
---|
| 850 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrdimask_id, & |
---|
| 851 | grid1_mask_int) |
---|
| 852 | call netcdf_error_handler(ncstat) |
---|
| 853 | |
---|
| 854 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcntrlat_id, & |
---|
| 855 | grid1_center_lat) |
---|
| 856 | call netcdf_error_handler(ncstat) |
---|
| 857 | |
---|
| 858 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcntrlon_id, & |
---|
| 859 | grid1_center_lon) |
---|
| 860 | call netcdf_error_handler(ncstat) |
---|
| 861 | |
---|
| 862 | ncstat = nf_get_att_text(nc_file_id, nc_srcgrdcntrlat_id, 'units', & |
---|
| 863 | grid1_units) |
---|
| 864 | call netcdf_error_handler(ncstat) |
---|
| 865 | |
---|
| 866 | select case (grid1_units(1:7)) |
---|
| 867 | case ('degrees') |
---|
| 868 | grid1_center_lat = grid1_center_lat*deg2rad |
---|
| 869 | grid1_center_lon = grid1_center_lon*deg2rad |
---|
| 870 | case ('radians') |
---|
| 871 | !*** no conversion necessary |
---|
| 872 | case default |
---|
| 873 | print *,'unknown units supplied for grid1 center lat/lon: ' |
---|
| 874 | print *,'proceeding assuming radians' |
---|
| 875 | end select |
---|
| 876 | |
---|
| 877 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcrnrlat_id, & |
---|
| 878 | grid1_corner_lat) |
---|
| 879 | call netcdf_error_handler(ncstat) |
---|
| 880 | |
---|
| 881 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdcrnrlon_id, & |
---|
| 882 | grid1_corner_lon) |
---|
| 883 | call netcdf_error_handler(ncstat) |
---|
| 884 | |
---|
| 885 | ncstat = nf_get_att_text(nc_file_id, nc_srcgrdcrnrlat_id, 'units', & |
---|
| 886 | grid1_units) |
---|
| 887 | call netcdf_error_handler(ncstat) |
---|
| 888 | |
---|
| 889 | select case (grid1_units(1:7)) |
---|
| 890 | case ('degrees') |
---|
| 891 | grid1_corner_lat = grid1_corner_lat*deg2rad |
---|
| 892 | grid1_corner_lon = grid1_corner_lon*deg2rad |
---|
| 893 | case ('radians') |
---|
| 894 | !*** no conversion necessary |
---|
| 895 | case default |
---|
| 896 | print *,'unknown units supplied for grid1 corner lat/lon: ' |
---|
| 897 | print *,'proceeding assuming radians' |
---|
| 898 | end select |
---|
| 899 | |
---|
| 900 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdarea_id, & |
---|
| 901 | grid1_area) |
---|
| 902 | call netcdf_error_handler(ncstat) |
---|
| 903 | |
---|
| 904 | ncstat = nf_get_var_double(nc_file_id, nc_srcgrdfrac_id, & |
---|
| 905 | grid1_frac) |
---|
| 906 | call netcdf_error_handler(ncstat) |
---|
| 907 | |
---|
| 908 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrddims_id, & |
---|
| 909 | grid2_dims) |
---|
| 910 | call netcdf_error_handler(ncstat) |
---|
| 911 | |
---|
| 912 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrdimask_id, & |
---|
| 913 | grid2_mask_int) |
---|
| 914 | call netcdf_error_handler(ncstat) |
---|
| 915 | |
---|
| 916 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcntrlat_id, & |
---|
| 917 | grid2_center_lat) |
---|
| 918 | call netcdf_error_handler(ncstat) |
---|
| 919 | |
---|
| 920 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcntrlon_id, & |
---|
| 921 | grid2_center_lon) |
---|
| 922 | call netcdf_error_handler(ncstat) |
---|
| 923 | |
---|
| 924 | ncstat = nf_get_att_text(nc_file_id, nc_dstgrdcntrlat_id, 'units', & |
---|
| 925 | grid2_units) |
---|
| 926 | call netcdf_error_handler(ncstat) |
---|
| 927 | |
---|
| 928 | select case (grid2_units(1:7)) |
---|
| 929 | case ('degrees') |
---|
| 930 | grid2_center_lat = grid2_center_lat*deg2rad |
---|
| 931 | grid2_center_lon = grid2_center_lon*deg2rad |
---|
| 932 | case ('radians') |
---|
| 933 | !*** no conversion necessary |
---|
| 934 | case default |
---|
| 935 | print *,'unknown units supplied for grid2 center lat/lon: ' |
---|
| 936 | print *,'proceeding assuming radians' |
---|
| 937 | end select |
---|
| 938 | |
---|
| 939 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcrnrlat_id, & |
---|
| 940 | grid2_corner_lat) |
---|
| 941 | call netcdf_error_handler(ncstat) |
---|
| 942 | |
---|
| 943 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdcrnrlon_id, & |
---|
| 944 | grid2_corner_lon) |
---|
| 945 | call netcdf_error_handler(ncstat) |
---|
| 946 | |
---|
| 947 | |
---|
| 948 | ncstat = nf_get_att_text(nc_file_id, nc_dstgrdcrnrlat_id, 'units', & |
---|
| 949 | grid2_units) |
---|
| 950 | call netcdf_error_handler(ncstat) |
---|
| 951 | |
---|
| 952 | select case (grid2_units(1:7)) |
---|
| 953 | case ('degrees') |
---|
| 954 | grid2_corner_lat = grid2_corner_lat*deg2rad |
---|
| 955 | grid2_corner_lon = grid2_corner_lon*deg2rad |
---|
| 956 | case ('radians') |
---|
| 957 | !*** no conversion necessary |
---|
| 958 | case default |
---|
| 959 | print *,'unknown units supplied for grid2 corner lat/lon: ' |
---|
| 960 | print *,'proceeding assuming radians' |
---|
| 961 | end select |
---|
| 962 | |
---|
| 963 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdarea_id, & |
---|
| 964 | grid2_area) |
---|
| 965 | call netcdf_error_handler(ncstat) |
---|
| 966 | |
---|
| 967 | ncstat = nf_get_var_double(nc_file_id, nc_dstgrdfrac_id, & |
---|
| 968 | grid2_frac) |
---|
| 969 | call netcdf_error_handler(ncstat) |
---|
| 970 | |
---|
| 971 | ncstat = nf_get_var_int(nc_file_id, nc_srcgrdadd_id, & |
---|
| 972 | grid1_add_map1) |
---|
| 973 | call netcdf_error_handler(ncstat) |
---|
| 974 | |
---|
| 975 | ncstat = nf_get_var_int(nc_file_id, nc_dstgrdadd_id, & |
---|
| 976 | grid2_add_map1) |
---|
| 977 | call netcdf_error_handler(ncstat) |
---|
| 978 | |
---|
| 979 | ncstat = nf_get_var_double(nc_file_id, nc_rmpmatrix_id, & |
---|
| 980 | wts1) |
---|
| 981 | wts_map1(1,:) = wts1 |
---|
| 982 | deallocate(wts1) |
---|
| 983 | |
---|
| 984 | if (num_wts > 1) then |
---|
| 985 | ncstat = nf_get_var_double(nc_file_id, nc_rmpmatrix2_id, & |
---|
| 986 | wts2) |
---|
| 987 | wts_map1(2:,:) = wts2 |
---|
| 988 | deallocate(wts2) |
---|
| 989 | endif |
---|
| 990 | call netcdf_error_handler(ncstat) |
---|
| 991 | |
---|
| 992 | !----------------------------------------------------------------------- |
---|
| 993 | ! |
---|
| 994 | ! initialize logical mask |
---|
| 995 | ! |
---|
| 996 | !----------------------------------------------------------------------- |
---|
| 997 | |
---|
| 998 | where (grid1_mask_int == 1) |
---|
| 999 | grid1_mask = .true. |
---|
| 1000 | elsewhere |
---|
| 1001 | grid1_mask = .false. |
---|
| 1002 | endwhere |
---|
| 1003 | where (grid2_mask_int == 1) |
---|
| 1004 | grid2_mask = .true. |
---|
| 1005 | elsewhere |
---|
| 1006 | grid2_mask = .false. |
---|
| 1007 | endwhere |
---|
| 1008 | deallocate(grid1_mask_int, grid2_mask_int) |
---|
| 1009 | |
---|
| 1010 | !----------------------------------------------------------------------- |
---|
| 1011 | ! |
---|
| 1012 | ! close input file |
---|
| 1013 | ! |
---|
| 1014 | !----------------------------------------------------------------------- |
---|
| 1015 | |
---|
| 1016 | ncstat = nf_close(nc_file_id) |
---|
| 1017 | call netcdf_error_handler(ncstat) |
---|
| 1018 | |
---|
| 1019 | !----------------------------------------------------------------------- |
---|
| 1020 | |
---|
| 1021 | end subroutine read_remap_csm |
---|
| 1022 | |
---|
| 1023 | !*********************************************************************** |
---|
| 1024 | |
---|
| 1025 | end module remap_read |
---|
| 1026 | |
---|
| 1027 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
---|