1 | !********************************************************************** |
---|
2 | ! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 * |
---|
3 | ! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, * |
---|
4 | ! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann * |
---|
5 | ! * |
---|
6 | ! This file is part of FLEXPART. * |
---|
7 | ! * |
---|
8 | ! FLEXPART is free software: you can redistribute it and/or modify * |
---|
9 | ! it under the terms of the GNU General Public License as published by* |
---|
10 | ! the Free Software Foundation, either version 3 of the License, or * |
---|
11 | ! (at your option) any later version. * |
---|
12 | ! * |
---|
13 | ! FLEXPART is distributed in the hope that it will be useful, * |
---|
14 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of * |
---|
15 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
---|
16 | ! GNU General Public License for more details. * |
---|
17 | ! * |
---|
18 | ! You should have received a copy of the GNU General Public License * |
---|
19 | ! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. * |
---|
20 | !********************************************************************** |
---|
21 | |
---|
22 | subroutine detectformat(metdata_format) |
---|
23 | |
---|
24 | !***************************************************************************** |
---|
25 | ! * |
---|
26 | ! This routine reads the 1st file with windfields to determine * |
---|
27 | ! the format. * |
---|
28 | ! * |
---|
29 | ! Authors: M. Harustak * |
---|
30 | ! * |
---|
31 | ! 6 May 2015 * |
---|
32 | ! * |
---|
33 | !***************************************************************************** |
---|
34 | ! * |
---|
35 | ! Variables: * |
---|
36 | ! fname file name of file to check * |
---|
37 | ! * |
---|
38 | !***************************************************************************** |
---|
39 | |
---|
40 | use par_mod |
---|
41 | use com_mod |
---|
42 | use grib_api |
---|
43 | |
---|
44 | |
---|
45 | implicit none |
---|
46 | |
---|
47 | character(len=255) :: filename |
---|
48 | character(len=255) :: wfname1(maxwf) |
---|
49 | integer :: metdata_format |
---|
50 | integer :: gfileid, status, gribid, centrenum |
---|
51 | |
---|
52 | if ( maxwf.le.0 ) then |
---|
53 | print*,'No wind file available' |
---|
54 | metdata_format = unknown_metdata |
---|
55 | return |
---|
56 | endif |
---|
57 | |
---|
58 | filename = path(3)(1:length(3)) // trim(wfname(1)) |
---|
59 | |
---|
60 | ! Try to open the grib file - if successful, |
---|
61 | ! gfileid will be the file handle |
---|
62 | call grib_open_file(gfileid, TRIM(filename), 'r', status) |
---|
63 | if (status.ne. GRIB_SUCCESS) then |
---|
64 | print *, 'Unable to open: ', filename |
---|
65 | metdata_format = unknown_metdata |
---|
66 | return |
---|
67 | endif |
---|
68 | |
---|
69 | ! Get the GRIB id for the first message in the GRIB file. This message |
---|
70 | ! (and all the others) should have the "centre" field in it. "gribid" |
---|
71 | ! will be the handle for this message |
---|
72 | call grib_new_from_file(gfileid, gribid, status) |
---|
73 | |
---|
74 | ! Now, from the "gribid" message, get the value of the "centre" field |
---|
75 | call grib_get(gribid, 'centre', centrenum) |
---|
76 | |
---|
77 | if (centrenum .EQ. 7) then |
---|
78 | metdata_format = gfs_metdata |
---|
79 | elseif (centrenum == 98) then |
---|
80 | metdata_format = ecmwf_metdata |
---|
81 | else |
---|
82 | metdata_format = unknown_metdata |
---|
83 | endif |
---|
84 | |
---|
85 | call grib_close_file(gfileid) |
---|
86 | |
---|
87 | |
---|
88 | end subroutine detectformat |
---|