| 1 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 2 | ! |
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| 3 | ! this program is a short driver that tests the remappings using |
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| 4 | ! a simple analytic field. the results are written in netCDF |
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| 5 | ! format. |
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| 6 | ! |
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| 7 | !----------------------------------------------------------------------- |
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| 8 | ! |
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| 9 | ! CVS:$Id$ |
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| 10 | ! |
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| 11 | ! Copyright (c) 1997, 1998 the Regents of the University of |
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| 12 | ! California. |
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| 13 | ! |
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| 14 | ! This software and ancillary information (herein called software) |
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| 15 | ! called SCRIP is made available under the terms described here. |
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| 16 | ! The software has been approved for release with associated |
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| 17 | ! LA-CC Number 98-45. |
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| 18 | ! |
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| 19 | ! Unless otherwise indicated, this software has been authored |
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| 20 | ! by an employee or employees of the University of California, |
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| 21 | ! operator of the Los Alamos National Laboratory under Contract |
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| 22 | ! No. W-7405-ENG-36 with the U.S. Department of Energy. The U.S. |
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| 23 | ! Government has rights to use, reproduce, and distribute this |
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| 24 | ! software. The public may copy and use this software without |
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| 25 | ! charge, provided that this Notice and any statement of authorship |
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| 26 | ! are reproduced on all copies. Neither the Government nor the |
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| 27 | ! University makes any warranty, express or implied, or assumes |
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| 28 | ! any liability or responsibility for the use of this software. |
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| 29 | ! |
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| 30 | ! If software is modified to produce derivative works, such modified |
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| 31 | ! software should be clearly marked, so as not to confuse it with |
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| 32 | ! the version available from Los Alamos National Laboratory. |
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| 33 | ! |
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| 34 | !*********************************************************************** |
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| 35 | |
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| 36 | program remap_test_repeat |
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| 37 | |
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| 38 | !----------------------------------------------------------------------- |
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| 39 | |
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| 40 | use kinds_mod ! defines common data types |
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| 41 | use constants ! defines common constants |
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| 42 | use iounits ! I/O unit manager |
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| 43 | use netcdf_mod ! netcdf I/O stuff |
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| 44 | use grids ! module containing grid info |
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| 45 | use remap_vars ! module containing remapping info |
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| 46 | |
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| 47 | implicit none |
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| 48 | |
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| 49 | !----------------------------------------------------------------------- |
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| 50 | ! |
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| 51 | ! interface for remap routine |
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| 52 | ! |
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| 53 | !----------------------------------------------------------------------- |
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| 54 | |
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| 55 | interface |
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| 56 | subroutine remap(dst_array, map_wts, dst_add, src_add, |
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| 57 | & src_array, src_grad1, src_grad2, src_grad3) |
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| 58 | |
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| 59 | use kinds_mod |
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| 60 | use constants |
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| 61 | |
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| 62 | implicit none |
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| 63 | |
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| 64 | integer (kind=int_kind), dimension(:), intent(in) :: |
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| 65 | & dst_add, src_add |
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| 66 | |
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| 67 | real (kind=dbl_kind), dimension(:,:), intent(in) :: map_wts |
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| 68 | |
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| 69 | real (kind=dbl_kind), dimension(:), intent(in) :: src_array |
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| 70 | |
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| 71 | real (kind=dbl_kind), dimension(:), intent(in), optional :: |
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| 72 | & src_grad1, src_grad2, src_grad3 |
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| 73 | |
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| 74 | real (kind=dbl_kind), dimension(:), intent(inout) :: dst_array |
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| 75 | |
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| 76 | end subroutine remap |
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| 77 | end interface |
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| 78 | |
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| 79 | !----------------------------------------------------------------------- |
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| 80 | ! |
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| 81 | ! input namelist variables |
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| 82 | ! |
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| 83 | !----------------------------------------------------------------------- |
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| 84 | |
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| 85 | integer (kind=int_kind) :: |
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| 86 | & field_choice, ! choice of field to be interpolated |
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| 87 | & num_repeats ! number of times to repeat remappings |
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| 88 | |
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| 89 | character (char_len) :: |
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| 90 | & interp_file1, ! filename containing remap data (map1) |
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| 91 | & interp_file2, ! filename containing remap data (map2) |
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| 92 | & output_file ! filename containing output test data |
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| 93 | |
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| 94 | namelist /remap_inputs/ field_choice, num_repeats, |
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| 95 | & interp_file1, interp_file2, output_file |
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| 96 | |
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| 97 | !----------------------------------------------------------------------- |
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| 98 | ! |
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| 99 | ! local variables |
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| 100 | ! |
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| 101 | !----------------------------------------------------------------------- |
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| 102 | |
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| 103 | character (char_len) :: |
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| 104 | & map_name1, ! name for mapping from grid1 to grid2 |
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| 105 | & map_name2 ! name for mapping from grid2 to grid1 |
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| 106 | |
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| 107 | integer (kind=int_kind) :: ! netCDF ids for files and arrays |
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| 108 | & n, ncstat, nc_outfile_id, |
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| 109 | & nc_srcgrdcntrlat_id, nc_srcgrdcntrlon_id, |
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| 110 | & nc_dstgrdcntrlat_id, nc_dstgrdcntrlon_id, |
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| 111 | & nc_srcgrdrank_id, nc_dstgrdrank_id, |
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| 112 | & nc_srcgrdimask_id, nc_dstgrdimask_id, |
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| 113 | & nc_srcgrdarea_id, nc_dstgrdarea_id, |
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| 114 | & nc_srcgrdfrac_id, nc_dstgrdfrac_id, |
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| 115 | & nc_srcarray_id, nc_srcgradlat_id, nc_srcgradlon_id, |
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| 116 | & nc_dstarray1_id, nc_dstarray2_id, |
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| 117 | & nc_dsterror1_id, nc_dsterror2_id |
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| 118 | |
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| 119 | integer (kind=int_kind), dimension(:), allocatable :: |
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| 120 | & nc_grid1size_id, nc_grid2size_id |
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| 121 | |
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| 122 | !----------------------------------------------------------------------- |
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| 123 | |
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| 124 | character (char_len) :: |
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| 125 | & dim_name ! netCDF dimension name |
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| 126 | |
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| 127 | integer (kind=int_kind) :: i,j,n, |
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| 128 | & iunit ! unit number for namelist file |
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| 129 | |
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| 130 | integer (kind=int_kind), dimension(:), allocatable :: |
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| 131 | & grid1_imask, grid2_imask |
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| 132 | |
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| 133 | real (kind=dbl_kind) :: |
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| 134 | & length ! length scale for cosine hill test field |
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| 135 | |
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| 136 | real (kind=dbl_kind), dimension(:), allocatable :: |
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| 137 | & grid1_array, |
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| 138 | & grid1_tmp, |
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| 139 | & grad1_lat, |
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| 140 | & grad1_lon, |
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| 141 | & grid2_array, |
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| 142 | & grid2_err, |
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| 143 | & grid2_tmp, |
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| 144 | & grad2_lat, |
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| 145 | & grad2_lon |
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| 146 | |
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| 147 | !----------------------------------------------------------------------- |
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| 148 | ! |
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| 149 | ! read namelist for file and mapping info |
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| 150 | ! |
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| 151 | !----------------------------------------------------------------------- |
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| 152 | |
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| 153 | call get_unit(iunit) |
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| 154 | open(iunit, file='repeat_test_in', status='old', form='formatted') |
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| 155 | read(iunit, nml=remap_inputs) |
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| 156 | call release_unit(iunit) |
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| 157 | write(*,nml=remap_inputs) |
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| 158 | |
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| 159 | !----------------------------------------------------------------------- |
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| 160 | ! |
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| 161 | ! read remapping data |
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| 162 | ! |
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| 163 | !----------------------------------------------------------------------- |
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| 164 | |
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| 165 | num_maps = 2 |
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| 166 | |
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| 167 | call read_remap(map_name1, map_name2, interp_file1, interp_file2) |
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| 168 | |
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| 169 | !----------------------------------------------------------------------- |
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| 170 | ! |
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| 171 | ! allocate arrays |
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| 172 | ! |
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| 173 | !----------------------------------------------------------------------- |
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| 174 | |
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| 175 | allocate (grid1_array (grid1_size), |
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| 176 | & grid1_tmp (grid1_size), |
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| 177 | & grad1_lat (grid1_size), |
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| 178 | & grad1_lon (grid1_size), |
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| 179 | & grid1_imask (grid1_size), |
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| 180 | & grid2_array (grid2_size), |
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| 181 | & grid2_err (grid2_size), |
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| 182 | & grid2_tmp (grid2_size), |
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| 183 | & grad2_lat (grid2_size), |
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| 184 | & grad2_lon (grid2_size), |
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| 185 | & grid2_imask (grid2_size)) |
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| 186 | |
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| 187 | where (grid1_mask) |
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| 188 | grid1_imask = 1 |
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| 189 | elsewhere |
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| 190 | grid1_imask = 0 |
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| 191 | endwhere |
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| 192 | where (grid2_mask) |
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| 193 | grid2_imask = 1 |
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| 194 | elsewhere |
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| 195 | grid2_imask = 0 |
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| 196 | endwhere |
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| 197 | |
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| 198 | !----------------------------------------------------------------------- |
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| 199 | ! |
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| 200 | ! setup a NetCDF file for output |
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| 201 | ! |
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| 202 | !----------------------------------------------------------------------- |
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| 203 | |
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| 204 | !*** |
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| 205 | !*** create netCDF dataset |
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| 206 | !*** |
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| 207 | |
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| 208 | ncstat = nf_create (output_file, NF_CLOBBER, nc_outfile_id) |
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| 209 | call netcdf_error_handler(ncstat) |
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| 210 | |
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| 211 | ncstat = nf_put_att_text (nc_outfile_id, NF_GLOBAL, 'title', |
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| 212 | & len_trim(map_name1), map_name1) |
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| 213 | call netcdf_error_handler(ncstat) |
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| 214 | |
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| 215 | !*** |
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| 216 | !*** define grid size dimensions |
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| 217 | !*** |
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| 218 | |
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| 219 | allocate( nc_grid1size_id(grid1_rank), |
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| 220 | & nc_grid2size_id(grid2_rank)) |
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| 221 | |
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| 222 | do n=1,grid1_rank |
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| 223 | write(dim_name,1000) 'grid1_dim',n |
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| 224 | ncstat = nf_def_dim (nc_outfile_id, dim_name, |
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| 225 | & grid1_dims(n), nc_grid1size_id(n)) |
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| 226 | call netcdf_error_handler(ncstat) |
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| 227 | end do |
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| 228 | |
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| 229 | do n=1,grid2_rank |
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| 230 | write(dim_name,1000) 'grid2_dim',n |
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| 231 | ncstat = nf_def_dim (nc_outfile_id, dim_name, |
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| 232 | & grid2_dims(n), nc_grid2size_id(n)) |
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| 233 | call netcdf_error_handler(ncstat) |
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| 234 | end do |
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| 235 | 1000 format(a9,i1) |
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| 236 | |
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| 237 | !*** |
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| 238 | !*** define grid center latitude array |
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| 239 | !*** |
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| 240 | |
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| 241 | ncstat = nf_def_var (nc_outfile_id, 'src_grid_center_lat', |
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| 242 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 243 | & nc_srcgrdcntrlat_id) |
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| 244 | call netcdf_error_handler(ncstat) |
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| 245 | |
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| 246 | ncstat = nf_put_att_text (nc_outfile_id, nc_srcgrdcntrlat_id, |
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| 247 | & 'units', 7, 'radians') |
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| 248 | call netcdf_error_handler(ncstat) |
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| 249 | |
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| 250 | ncstat = nf_def_var (nc_outfile_id, 'dst_grid_center_lat', |
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| 251 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 252 | & nc_dstgrdcntrlat_id) |
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| 253 | call netcdf_error_handler(ncstat) |
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| 254 | |
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| 255 | ncstat = nf_put_att_text (nc_outfile_id, nc_dstgrdcntrlat_id, |
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| 256 | & 'units', 7, 'radians') |
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| 257 | call netcdf_error_handler(ncstat) |
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| 258 | |
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| 259 | !*** |
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| 260 | !*** define grid center longitude array |
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| 261 | !*** |
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| 262 | |
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| 263 | ncstat = nf_def_var (nc_outfile_id, 'src_grid_center_lon', |
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| 264 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 265 | & nc_srcgrdcntrlon_id) |
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| 266 | call netcdf_error_handler(ncstat) |
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| 267 | |
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| 268 | ncstat = nf_put_att_text (nc_outfile_id, nc_srcgrdcntrlon_id, |
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| 269 | & 'units', 7, 'radians') |
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| 270 | call netcdf_error_handler(ncstat) |
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| 271 | |
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| 272 | ncstat = nf_def_var (nc_outfile_id, 'dst_grid_center_lon', |
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| 273 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 274 | & nc_dstgrdcntrlon_id) |
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| 275 | call netcdf_error_handler(ncstat) |
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| 276 | |
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| 277 | ncstat = nf_put_att_text (nc_outfile_id, nc_dstgrdcntrlon_id, |
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| 278 | & 'units', 7, 'radians') |
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| 279 | call netcdf_error_handler(ncstat) |
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| 280 | |
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| 281 | !*** |
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| 282 | !*** define grid mask |
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| 283 | !*** |
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| 284 | |
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| 285 | ncstat = nf_def_var (nc_outfile_id, 'src_grid_imask', NF_INT, |
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| 286 | & grid1_rank, nc_grid1size_id, nc_srcgrdimask_id) |
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| 287 | call netcdf_error_handler(ncstat) |
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| 288 | |
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| 289 | ncstat = nf_put_att_text (nc_outfile_id, nc_srcgrdimask_id, |
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| 290 | & 'units', 8, 'unitless') |
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| 291 | call netcdf_error_handler(ncstat) |
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| 292 | |
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| 293 | ncstat = nf_def_var (nc_outfile_id, 'dst_grid_imask', NF_INT, |
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| 294 | & grid2_rank, nc_grid2size_id, nc_dstgrdimask_id) |
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| 295 | call netcdf_error_handler(ncstat) |
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| 296 | |
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| 297 | ncstat = nf_put_att_text (nc_outfile_id, nc_dstgrdimask_id, |
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| 298 | & 'units', 8, 'unitless') |
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| 299 | call netcdf_error_handler(ncstat) |
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| 300 | |
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| 301 | !*** |
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| 302 | !*** define grid area arrays |
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| 303 | !*** |
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| 304 | |
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| 305 | ncstat = nf_def_var (nc_outfile_id, 'src_grid_area', |
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| 306 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 307 | & nc_srcgrdarea_id) |
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| 308 | call netcdf_error_handler(ncstat) |
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| 309 | |
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| 310 | ncstat = nf_def_var (nc_outfile_id, 'dst_grid_area', |
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| 311 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 312 | & nc_dstgrdarea_id) |
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| 313 | call netcdf_error_handler(ncstat) |
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| 314 | |
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| 315 | !*** |
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| 316 | !*** define grid fraction arrays |
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| 317 | !*** |
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| 318 | |
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| 319 | ncstat = nf_def_var (nc_outfile_id, 'src_grid_frac', |
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| 320 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 321 | & nc_srcgrdfrac_id) |
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| 322 | call netcdf_error_handler(ncstat) |
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| 323 | |
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| 324 | ncstat = nf_def_var (nc_outfile_id, 'dst_grid_frac', |
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| 325 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 326 | & nc_dstgrdfrac_id) |
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| 327 | call netcdf_error_handler(ncstat) |
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| 328 | |
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| 329 | !*** |
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| 330 | !*** define source array |
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| 331 | !*** |
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| 332 | |
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| 333 | ncstat = nf_def_var (nc_outfile_id, 'src_array', |
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| 334 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 335 | & nc_srcarray_id) |
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| 336 | call netcdf_error_handler(ncstat) |
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| 337 | |
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| 338 | !*** |
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| 339 | !*** define gradient arrays |
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| 340 | !*** |
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| 341 | |
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| 342 | ncstat = nf_def_var (nc_outfile_id, 'src_grad_lat', |
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| 343 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 344 | & nc_srcgradlat_id) |
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| 345 | call netcdf_error_handler(ncstat) |
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| 346 | |
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| 347 | ncstat = nf_def_var (nc_outfile_id, 'src_grad_lon', |
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| 348 | & NF_DOUBLE, grid1_rank, nc_grid1size_id, |
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| 349 | & nc_srcgradlon_id) |
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| 350 | call netcdf_error_handler(ncstat) |
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| 351 | |
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| 352 | !*** |
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| 353 | !*** define destination arrays |
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| 354 | !*** |
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| 355 | |
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| 356 | ncstat = nf_def_var (nc_outfile_id, 'dst_array1', |
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| 357 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 358 | & nc_dstarray1_id) |
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| 359 | call netcdf_error_handler(ncstat) |
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| 360 | |
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| 361 | ncstat = nf_def_var (nc_outfile_id, 'dst_array2', |
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| 362 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 363 | & nc_dstarray2_id) |
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| 364 | call netcdf_error_handler(ncstat) |
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| 365 | |
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| 366 | !*** |
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| 367 | !*** define error arrays |
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| 368 | !*** |
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| 369 | |
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| 370 | ncstat = nf_def_var (nc_outfile_id, 'dst_error1', |
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| 371 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 372 | & nc_dsterror1_id) |
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| 373 | call netcdf_error_handler(ncstat) |
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| 374 | |
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| 375 | ncstat = nf_def_var (nc_outfile_id, 'dst_error2', |
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| 376 | & NF_DOUBLE, grid2_rank, nc_grid2size_id, |
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| 377 | & nc_dsterror2_id) |
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| 378 | call netcdf_error_handler(ncstat) |
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| 379 | |
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| 380 | !*** |
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| 381 | !*** end definition stage |
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| 382 | !*** |
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| 383 | |
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| 384 | ncstat = nf_enddef(nc_outfile_id) |
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| 385 | call netcdf_error_handler(ncstat) |
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| 386 | |
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| 387 | !----------------------------------------------------------------------- |
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| 388 | ! |
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| 389 | ! write some grid info |
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| 390 | ! |
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| 391 | !----------------------------------------------------------------------- |
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| 392 | |
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| 393 | !*** |
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| 394 | !*** write grid center latitude array |
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| 395 | !*** |
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| 396 | |
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| 397 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcgrdcntrlat_id, |
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| 398 | & grid1_center_lat) |
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| 399 | call netcdf_error_handler(ncstat) |
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| 400 | |
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| 401 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstgrdcntrlat_id, |
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| 402 | & grid2_center_lat) |
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| 403 | call netcdf_error_handler(ncstat) |
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| 404 | |
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| 405 | !*** |
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| 406 | !*** write grid center longitude array |
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| 407 | !*** |
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| 408 | |
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| 409 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcgrdcntrlon_id, |
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| 410 | & grid1_center_lon) |
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| 411 | call netcdf_error_handler(ncstat) |
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| 412 | |
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| 413 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstgrdcntrlon_id, |
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| 414 | & grid2_center_lon) |
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| 415 | call netcdf_error_handler(ncstat) |
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| 416 | |
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| 417 | !*** |
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| 418 | !*** write grid mask |
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| 419 | !*** |
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| 420 | |
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| 421 | ncstat = nf_put_var_int(nc_outfile_id, nc_srcgrdimask_id, |
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| 422 | & grid1_imask) |
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| 423 | call netcdf_error_handler(ncstat) |
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| 424 | |
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| 425 | ncstat = nf_put_var_int(nc_outfile_id, nc_dstgrdimask_id, |
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| 426 | & grid2_imask) |
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| 427 | call netcdf_error_handler(ncstat) |
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| 428 | |
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| 429 | !*** |
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| 430 | !*** define grid area arrays |
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| 431 | !*** |
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| 432 | |
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| 433 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcgrdarea_id, |
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| 434 | & grid1_area) |
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| 435 | call netcdf_error_handler(ncstat) |
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| 436 | |
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| 437 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstgrdarea_id, |
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| 438 | & grid2_area) |
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| 439 | call netcdf_error_handler(ncstat) |
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| 440 | |
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| 441 | !*** |
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| 442 | !*** define grid fraction arrays |
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| 443 | !*** |
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| 444 | |
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| 445 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcgrdfrac_id, |
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| 446 | & grid1_frac) |
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| 447 | call netcdf_error_handler(ncstat) |
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| 448 | |
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| 449 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstgrdfrac_id, |
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| 450 | & grid2_frac) |
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| 451 | call netcdf_error_handler(ncstat) |
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| 452 | |
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| 453 | !----------------------------------------------------------------------- |
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| 454 | ! |
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| 455 | ! set up fields for test cases based on user choice |
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| 456 | ! |
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| 457 | !----------------------------------------------------------------------- |
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| 458 | |
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| 459 | select case (field_choice) |
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| 460 | case(1) !*** cosine hill at lon=pi and lat=0 |
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| 461 | |
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| 462 | length = 0.1*pi2 |
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| 463 | |
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| 464 | grid1_array = cos(grid1_center_lat)*cos(grid1_center_lon) |
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| 465 | grid2_array = cos(grid2_center_lat)*cos(grid2_center_lon) |
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| 466 | |
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| 467 | grid1_tmp = acos(-grid1_array)/length |
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| 468 | grid2_tmp = acos(-grid2_array)/length |
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| 469 | |
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| 470 | where (grid1_tmp <= one) |
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| 471 | grad1_lat = (pi/length)*sin(pi*grid1_tmp)* |
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| 472 | & sin(grid1_center_lat)*cos(grid1_center_lon)/ |
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| 473 | & sqrt(one-grid1_array**2) |
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| 474 | grad1_lon = (pi/length)*sin(pi*grid1_tmp)* |
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| 475 | & sin(grid1_center_lon)/ |
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| 476 | & sqrt(one-grid1_array**2) |
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| 477 | grid1_array = two + cos(pi*grid1_tmp) |
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| 478 | elsewhere |
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| 479 | grid1_array = one |
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| 480 | grad1_lat = zero |
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| 481 | grad1_lon = zero |
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| 482 | endwhere |
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| 483 | |
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| 484 | where (grid2_tmp <= one) |
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| 485 | grad2_lat = (pi/length)*sin(pi*grid2_tmp)* |
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| 486 | & sin(grid2_center_lat)*cos(grid2_center_lon)/ |
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| 487 | & sqrt(one-grid2_array**2) |
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| 488 | grad2_lon = (pi/length)*sin(pi*grid2_tmp)* |
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| 489 | & sin(grid2_center_lon)/ |
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| 490 | & sqrt(one-grid2_array**2) |
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| 491 | grid2_array = two + cos(pi*grid2_tmp) |
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| 492 | elsewhere |
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| 493 | grid2_array = one |
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| 494 | grad2_lat = zero |
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| 495 | grad2_lon = zero |
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| 496 | endwhere |
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| 497 | |
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| 498 | where (.not. grid1_mask) |
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| 499 | grid1_array = zero |
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| 500 | grad1_lat = zero |
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| 501 | grad1_lon = zero |
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| 502 | end where |
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| 503 | |
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| 504 | where (.not. grid2_mask) |
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| 505 | grid2_array = zero |
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| 506 | grad2_lat = zero |
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| 507 | grad2_lon = zero |
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| 508 | end where |
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| 509 | |
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| 510 | case(2) !*** pseudo-spherical harmonic l=2,m=2 |
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| 511 | |
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| 512 | where (grid1_mask) |
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| 513 | grid1_array = two + cos(grid1_center_lat)**2* |
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| 514 | & cos(two*grid1_center_lon) |
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| 515 | grad1_lat = -sin(two*grid1_center_lat)* |
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| 516 | & cos(two*grid1_center_lon) |
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| 517 | grad1_lon = -two*cos(grid1_center_lat)* |
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| 518 | & sin(two*grid1_center_lon) |
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| 519 | elsewhere |
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| 520 | grid1_array = zero |
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| 521 | grad1_lat = zero |
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| 522 | grad1_lon = zero |
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| 523 | end where |
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| 524 | |
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| 525 | where (grid2_mask) |
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| 526 | grid2_array = two + cos(grid2_center_lat)**2* |
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| 527 | & cos(two*grid2_center_lon) |
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| 528 | grad2_lat = -sin(two*grid2_center_lat)* |
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| 529 | & cos(two*grid2_center_lon) |
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| 530 | grad2_lon = -two*cos(grid2_center_lat)* |
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| 531 | & sin(two*grid2_center_lon) |
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| 532 | elsewhere |
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| 533 | grid2_array = zero |
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| 534 | grad2_lat = zero |
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| 535 | grad2_lon = zero |
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| 536 | end where |
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| 537 | |
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| 538 | case(3) !*** pseudo-spherical harmonic l=32, m=16 |
|---|
| 539 | |
|---|
| 540 | where (grid1_mask) |
|---|
| 541 | grid1_array = two + sin(two*grid1_center_lat)**16* |
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| 542 | & cos(16.*grid1_center_lon) |
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| 543 | grad1_lat = 32.*sin(two*grid1_center_lat)**15* |
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| 544 | & cos(two*grid1_center_lat)* |
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| 545 | & cos(16.*grid1_center_lon) |
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| 546 | grad1_lon = -32.*sin(two*grid1_center_lat)**15* |
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| 547 | & sin(grid1_center_lat)* |
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| 548 | & sin(16.*grid1_center_lon) |
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| 549 | elsewhere |
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| 550 | grid1_array = zero |
|---|
| 551 | grad1_lat = zero |
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| 552 | grad1_lon = zero |
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| 553 | end where |
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| 554 | |
|---|
| 555 | where (grid2_mask) |
|---|
| 556 | grid2_array = two + sin(two*grid2_center_lat)**16* |
|---|
| 557 | & cos(16.*grid2_center_lon) |
|---|
| 558 | grad2_lat = 32.*sin(two*grid2_center_lat)**15* |
|---|
| 559 | & cos(two*grid2_center_lat)* |
|---|
| 560 | & cos(16.*grid2_center_lon) |
|---|
| 561 | grad2_lon = -32.*sin(two*grid2_center_lat)**15* |
|---|
| 562 | & sin(grid2_center_lat)* |
|---|
| 563 | & sin(16.*grid2_center_lon) |
|---|
| 564 | elsewhere |
|---|
| 565 | grid2_array = zero |
|---|
| 566 | grad2_lat = zero |
|---|
| 567 | grad2_lon = zero |
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| 568 | end where |
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| 569 | |
|---|
| 570 | case default |
|---|
| 571 | |
|---|
| 572 | stop 'Bad choice for field to interpolate' |
|---|
| 573 | |
|---|
| 574 | end select |
|---|
| 575 | |
|---|
| 576 | !----------------------------------------------------------------------- |
|---|
| 577 | ! |
|---|
| 578 | ! test repeated first-order maps between grid1 and grid2 |
|---|
| 579 | ! |
|---|
| 580 | !----------------------------------------------------------------------- |
|---|
| 581 | |
|---|
| 582 | call remap(grid2_tmp, wts_map1, grid2_add_map1, grid1_add_map1, |
|---|
| 583 | & grid1_array) |
|---|
| 584 | do n=1,num_repeats |
|---|
| 585 | call remap(grid1_tmp, wts_map2, grid1_add_map2, grid2_add_map2, |
|---|
| 586 | & grid2_tmp) |
|---|
| 587 | call remap(grid2_tmp, wts_map1, grid2_add_map1, grid1_add_map1, |
|---|
| 588 | & grid1_tmp) |
|---|
| 589 | end do |
|---|
| 590 | |
|---|
| 591 | where (grid2_frac > .999) |
|---|
| 592 | grid2_err = (grid2_tmp - grid2_array)/grid2_array |
|---|
| 593 | elsewhere |
|---|
| 594 | grid2_err = zero |
|---|
| 595 | end where |
|---|
| 596 | |
|---|
| 597 | print *,'First order mapping from grid1 to grid2:' |
|---|
| 598 | print *,'----------------------------------------' |
|---|
| 599 | print *,'Grid1 min,max: ',minval(grid1_array),maxval(grid1_array) |
|---|
| 600 | print *,'Grid2 min,max: ',minval(grid2_tmp ),maxval(grid2_tmp ) |
|---|
| 601 | print *,' Err2 min,max: ',minval(grid2_err),maxval(grid2_err) |
|---|
| 602 | print *,' Err2 mean: ',sum(abs(grid2_err))/ |
|---|
| 603 | & count(grid2_frac > .001) |
|---|
| 604 | |
|---|
| 605 | !*** |
|---|
| 606 | !*** Conservation Test |
|---|
| 607 | !*** |
|---|
| 608 | |
|---|
| 609 | print *,'Conservation:' |
|---|
| 610 | print *,'Grid1 Integral = ',sum(grid1_array*grid1_area*grid1_frac) |
|---|
| 611 | print *,'Grid2 Integral = ',sum(grid2_tmp *grid2_area*grid2_frac) |
|---|
| 612 | |
|---|
| 613 | !----------------------------------------------------------------------- |
|---|
| 614 | ! |
|---|
| 615 | ! write results to NetCDF file |
|---|
| 616 | ! |
|---|
| 617 | !----------------------------------------------------------------------- |
|---|
| 618 | |
|---|
| 619 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcarray_id, |
|---|
| 620 | & grid1_array) |
|---|
| 621 | call netcdf_error_handler(ncstat) |
|---|
| 622 | |
|---|
| 623 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstarray1_id, |
|---|
| 624 | & grid2_tmp ) |
|---|
| 625 | call netcdf_error_handler(ncstat) |
|---|
| 626 | |
|---|
| 627 | ncstat = nf_put_var_double(nc_outfile_id, nc_dsterror1_id, |
|---|
| 628 | & grid2_err) |
|---|
| 629 | call netcdf_error_handler(ncstat) |
|---|
| 630 | |
|---|
| 631 | !----------------------------------------------------------------------- |
|---|
| 632 | ! |
|---|
| 633 | ! test repeated second-order mapppings between grid1 and grid2 |
|---|
| 634 | ! |
|---|
| 635 | !----------------------------------------------------------------------- |
|---|
| 636 | |
|---|
| 637 | if (num_wts > 1) then |
|---|
| 638 | |
|---|
| 639 | call remap(grid2_tmp , wts_map1, grid2_add_map1, grid1_add_map1, |
|---|
| 640 | & grid1_array, src_grad1=grad1_lat, |
|---|
| 641 | & src_grad2=grad1_lon) |
|---|
| 642 | |
|---|
| 643 | do n=1,num_repeats |
|---|
| 644 | call remap(grid1_tmp, wts_map2, grid1_add_map2, grid2_add_map2, |
|---|
| 645 | & grid2_tmp, src_grad1=grad2_lat, |
|---|
| 646 | & src_grad2=grad2_lon) |
|---|
| 647 | |
|---|
| 648 | call remap(grid2_tmp, wts_map1, grid2_add_map1, grid1_add_map1, |
|---|
| 649 | & grid1_tmp, src_grad1=grad1_lat, |
|---|
| 650 | & src_grad2=grad1_lon) |
|---|
| 651 | |
|---|
| 652 | end do |
|---|
| 653 | |
|---|
| 654 | where (grid2_frac > .999) |
|---|
| 655 | grid2_err = (grid2_tmp - grid2_array)/grid2_array |
|---|
| 656 | elsewhere |
|---|
| 657 | grid2_err = zero |
|---|
| 658 | end where |
|---|
| 659 | |
|---|
| 660 | print *,'Second order mapping from grid1 to grid2:' |
|---|
| 661 | print *,'-----------------------------------------' |
|---|
| 662 | print *,'Grid1 min,max: ',minval(grid1_array),maxval(grid1_array) |
|---|
| 663 | print *,'Grid2 min,max: ',minval(grid2_tmp ),maxval(grid2_tmp ) |
|---|
| 664 | print *,' Err2 min,max: ',minval(grid2_err),maxval(grid2_err) |
|---|
| 665 | print *,' Err2 mean: ',sum(abs(grid2_err))/ |
|---|
| 666 | & count(grid2_frac > .001) |
|---|
| 667 | |
|---|
| 668 | !*** |
|---|
| 669 | !*** Conservation Test |
|---|
| 670 | !*** |
|---|
| 671 | |
|---|
| 672 | print *,'Conservation:' |
|---|
| 673 | print *,'Grid1 Integral = ',sum(grid1_array*grid1_area*grid1_frac) |
|---|
| 674 | print *,'Grid2 Integral = ',sum(grid2_tmp *grid2_area*grid2_frac) |
|---|
| 675 | |
|---|
| 676 | !----------------------------------------------------------------------- |
|---|
| 677 | ! |
|---|
| 678 | ! write results to NetCDF file |
|---|
| 679 | ! |
|---|
| 680 | !----------------------------------------------------------------------- |
|---|
| 681 | |
|---|
| 682 | ncstat = nf_put_var_double(nc_outfile_id, nc_srcgradlon_id, |
|---|
| 683 | & grad1_lon) |
|---|
| 684 | call netcdf_error_handler(ncstat) |
|---|
| 685 | |
|---|
| 686 | ncstat = nf_put_var_double(nc_outfile_id, nc_dstarray2_id, |
|---|
| 687 | & grid2_tmp ) |
|---|
| 688 | call netcdf_error_handler(ncstat) |
|---|
| 689 | |
|---|
| 690 | ncstat = nf_put_var_double(nc_outfile_id, nc_dsterror2_id, |
|---|
| 691 | & grid2_err) |
|---|
| 692 | call netcdf_error_handler(ncstat) |
|---|
| 693 | |
|---|
| 694 | endif |
|---|
| 695 | |
|---|
| 696 | !----------------------------------------------------------------------- |
|---|
| 697 | ! |
|---|
| 698 | ! close netCDF file |
|---|
| 699 | ! |
|---|
| 700 | !----------------------------------------------------------------------- |
|---|
| 701 | |
|---|
| 702 | ncstat = nf_close(nc_outfile_id) |
|---|
| 703 | call netcdf_error_handler(ncstat) |
|---|
| 704 | |
|---|
| 705 | !----------------------------------------------------------------------- |
|---|
| 706 | |
|---|
| 707 | end program remap_test_repeat |
|---|
| 708 | |
|---|
| 709 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
|---|
