[2352] | 1 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 2 | ! |
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| 3 | ! This routine is the driver for computing the addresses and weights |
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| 4 | ! for interpolating between two grids on a sphere. |
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| 5 | ! |
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| 6 | ! Modified slightly to get name of namelist file from command line - sga 2/12/05 |
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| 7 | ! |
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| 8 | !----------------------------------------------------------------------- |
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| 9 | ! |
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| 10 | ! CVS:$Id: scrip.f,v 1.6 2001/08/21 21:06:44 pwjones Exp $ |
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| 11 | ! |
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| 12 | ! Copyright (c) 1997, 1998 the Regents of the University of |
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| 13 | ! California. |
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| 14 | ! |
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| 15 | ! This software and ancillary information (herein called software) |
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| 16 | ! called SCRIP is made available under the terms described here. |
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| 17 | ! The software has been approved for release with associated |
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| 18 | ! LA-CC Number 98-45. |
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| 19 | ! |
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| 20 | ! Unless otherwise indicated, this software has been authored |
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| 21 | ! by an employee or employees of the University of California, |
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| 22 | ! operator of the Los Alamos National Laboratory under Contract |
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| 23 | ! No. W-7405-ENG-36 with the U.S. Department of Energy. The U.S. |
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| 24 | ! Government has rights to use, reproduce, and distribute this |
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| 25 | ! software. The public may copy and use this software without |
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| 26 | ! charge, provided that this Notice and any statement of authorship |
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| 27 | ! are reproduced on all copies. Neither the Government nor the |
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| 28 | ! University makes any warranty, express or implied, or assumes |
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| 29 | ! any liability or responsibility for the use of this software. |
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| 30 | ! |
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| 31 | ! If software is modified to produce derivative works, such modified |
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| 32 | ! software should be clearly marked, so as not to confuse it with |
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| 33 | ! the version available from Los Alamos National Laboratory. |
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| 34 | ! |
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| 35 | !*********************************************************************** |
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| 36 | |
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| 37 | program scrip |
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| 38 | |
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| 39 | !----------------------------------------------------------------------- |
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| 40 | |
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| 41 | use kinds_mod ! module defining data types |
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| 42 | use constants ! module for common constants |
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| 43 | use iounits ! I/O unit manager |
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| 44 | use timers ! CPU timers |
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| 45 | use grids ! module with grid information |
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| 46 | use remap_vars ! common remapping variables |
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| 47 | use remap_conservative ! routines for conservative remap |
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| 48 | use remap_distance_weight ! routines for dist-weight remap |
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| 49 | use remap_bilinear ! routines for bilinear interp |
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| 50 | use remap_bicubic ! routines for bicubic interp |
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| 51 | use remap_write ! routines for remap output |
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| 52 | |
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| 53 | implicit none |
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| 54 | |
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| 55 | !----------------------------------------------------------------------- |
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| 56 | ! |
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| 57 | ! input namelist variables |
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| 58 | ! |
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| 59 | !----------------------------------------------------------------------- |
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| 60 | |
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| 61 | character (char_len) :: & |
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| 62 | grid1_file, & ! filename of grid file containing grid1 |
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| 63 | grid2_file, & ! filename of grid file containing grid2 |
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| 64 | interp_file1, & ! filename for output remap data (map1) |
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| 65 | interp_file2, & ! filename for output remap data (map2) |
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| 66 | map1_name, & ! name for mapping from grid1 to grid2 |
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| 67 | map2_name, & ! name for mapping from grid2 to grid1 |
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| 68 | map_method, & ! choice for mapping method |
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| 69 | normalize_opt, & ! option for normalizing weights |
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| 70 | output_opt ! option for output conventions |
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| 71 | |
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| 72 | integer (kind=int_kind) :: & |
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| 73 | nmap ! number of mappings to compute (1 or 2) |
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| 74 | |
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| 75 | namelist /remap_inputs/ grid1_file, grid2_file, & |
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| 76 | interp_file1, interp_file2, & |
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| 77 | map1_name, map2_name, num_maps, & |
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| 78 | luse_grid1_area, luse_grid2_area, & |
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| 79 | map_method, normalize_opt, output_opt, & |
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| 80 | restrict_type, num_srch_bins |
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| 81 | |
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| 82 | !----------------------------------------------------------------------- |
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| 83 | ! |
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| 84 | ! local variables |
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| 85 | ! |
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| 86 | !----------------------------------------------------------------------- |
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| 87 | |
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| 88 | integer (kind=int_kind) :: n, & ! dummy counter |
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| 89 | iunit ! unit number for namelist file |
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| 90 | |
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| 91 | character (char_len) :: nm_in |
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| 92 | #if defined ARGC |
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| 93 | integer :: iargc |
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| 94 | external iargc |
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| 95 | |
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| 96 | if (iargc() == 1) then |
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| 97 | call getarg(1, nm_in) |
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| 98 | else |
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| 99 | write(6,*) 'need name of namelist file' |
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| 100 | stop |
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| 101 | endif |
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| 102 | #else |
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| 103 | write(6,*) 'enter name for namelist file' |
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| 104 | read(5,*) nm_in |
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| 105 | #endif |
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| 106 | |
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| 107 | !----------------------------------------------------------------------- |
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| 108 | ! |
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| 109 | ! initialize timers |
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| 110 | ! |
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| 111 | !----------------------------------------------------------------------- |
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| 112 | |
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| 113 | call timers_init |
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| 114 | do n=1,max_timers |
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| 115 | call timer_clear(n) |
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| 116 | end do |
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| 117 | |
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| 118 | !----------------------------------------------------------------------- |
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| 119 | ! |
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| 120 | ! read input namelist |
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| 121 | ! |
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| 122 | !----------------------------------------------------------------------- |
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| 123 | |
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| 124 | grid1_file = 'unknown' |
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| 125 | grid2_file = 'unknown' |
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| 126 | interp_file1 = 'unknown' |
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| 127 | interp_file2 = 'unknown' |
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| 128 | map1_name = 'unknown' |
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| 129 | map2_name = 'unknown' |
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| 130 | luse_grid1_area = .false. |
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| 131 | luse_grid2_area = .false. |
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| 132 | num_maps = 2 |
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| 133 | map_type = 1 |
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| 134 | normalize_opt = 'fracarea' |
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| 135 | output_opt = 'scrip' |
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| 136 | restrict_type = 'latitude' |
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| 137 | num_srch_bins = 900 |
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| 138 | |
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| 139 | call get_unit(iunit) |
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| 140 | open(iunit, file=nm_in, status='old', form='formatted') |
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| 141 | read(iunit, nml=remap_inputs) |
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| 142 | call release_unit(iunit) |
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| 143 | |
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| 144 | select case(map_method) |
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| 145 | case ('conservative') |
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| 146 | map_type = map_type_conserv |
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| 147 | luse_grid_centers = .false. |
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| 148 | case ('bilinear') |
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| 149 | map_type = map_type_bilinear |
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| 150 | luse_grid_centers = .true. |
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| 151 | case ('bicubic') |
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| 152 | map_type = map_type_bicubic |
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| 153 | luse_grid_centers = .true. |
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| 154 | case ('distwgt') |
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| 155 | map_type = map_type_distwgt |
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| 156 | luse_grid_centers = .true. |
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| 157 | case default |
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| 158 | stop 'unknown mapping method' |
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| 159 | end select |
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| 160 | |
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| 161 | select case(normalize_opt(1:4)) |
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| 162 | case ('none') |
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| 163 | norm_opt = norm_opt_none |
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| 164 | case ('frac') |
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| 165 | norm_opt = norm_opt_frcarea |
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| 166 | case ('dest') |
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| 167 | norm_opt = norm_opt_dstarea |
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| 168 | case default |
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| 169 | stop 'unknown normalization option' |
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| 170 | end select |
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| 171 | |
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| 172 | !----------------------------------------------------------------------- |
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| 173 | ! |
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| 174 | ! initialize grid information for both grids |
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| 175 | ! |
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| 176 | !----------------------------------------------------------------------- |
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| 177 | |
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| 178 | call grid_init(grid1_file, grid2_file) |
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| 179 | |
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| 180 | write(stdout, *) ' Computing remappings between: ',grid1_name |
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| 181 | write(stdout, *) ' and ',grid2_name |
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| 182 | |
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| 183 | !----------------------------------------------------------------------- |
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| 184 | ! |
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| 185 | ! initialize some remapping variables. |
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| 186 | ! |
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| 187 | !----------------------------------------------------------------------- |
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| 188 | |
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| 189 | call init_remap_vars |
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| 190 | |
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| 191 | !----------------------------------------------------------------------- |
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| 192 | ! |
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| 193 | ! call appropriate interpolation setup routine based on type of |
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| 194 | ! remapping requested. |
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| 195 | ! |
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| 196 | !----------------------------------------------------------------------- |
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| 197 | |
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| 198 | select case(map_type) |
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| 199 | case(map_type_conserv) |
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| 200 | call remap_conserv |
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| 201 | case(map_type_bilinear) |
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| 202 | call remap_bilin |
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| 203 | case(map_type_distwgt) |
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| 204 | call remap_distwgt |
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| 205 | case(map_type_bicubic) |
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| 206 | call remap_bicub |
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| 207 | case default |
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| 208 | stop 'Invalid Map Type' |
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| 209 | end select |
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| 210 | |
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| 211 | !----------------------------------------------------------------------- |
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| 212 | ! |
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| 213 | ! reduce size of remapping arrays and then write remapping info |
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| 214 | ! to a file. |
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| 215 | ! |
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| 216 | !----------------------------------------------------------------------- |
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| 217 | |
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| 218 | if (num_links_map1 /= max_links_map1) then |
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| 219 | call resize_remap_vars(1, num_links_map1-max_links_map1) |
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| 220 | endif |
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| 221 | if ((num_maps > 1) .and. (num_links_map2 /= max_links_map2)) then |
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| 222 | call resize_remap_vars(2, num_links_map2-max_links_map2) |
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| 223 | endif |
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| 224 | |
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| 225 | call write_remap(map1_name, map2_name, & |
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| 226 | interp_file1, interp_file2, output_opt) |
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| 227 | |
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| 228 | !----------------------------------------------------------------------- |
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| 229 | |
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| 230 | end program scrip |
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| 231 | |
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| 232 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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