233 lines
8.0 KiB
Fortran
Executable File
233 lines
8.0 KiB
Fortran
Executable File
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!
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! This routine is the driver for computing the addresses and weights
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! for interpolating between two grids on a sphere.
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!
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! Modified slightly to get name of namelist file from command line - sga 2/12/05
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!
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!-----------------------------------------------------------------------
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!
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! CVS:$Id: scrip.f,v 1.6 2001/08/21 21:06:44 pwjones Exp $
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!
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! Copyright (c) 1997, 1998 the Regents of the University of
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! California.
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!
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! This software and ancillary information (herein called software)
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! called SCRIP is made available under the terms described here.
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! The software has been approved for release with associated
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! LA-CC Number 98-45.
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!
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! Unless otherwise indicated, this software has been authored
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! by an employee or employees of the University of California,
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! operator of the Los Alamos National Laboratory under Contract
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! No. W-7405-ENG-36 with the U.S. Department of Energy. The U.S.
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! Government has rights to use, reproduce, and distribute this
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! software. The public may copy and use this software without
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! charge, provided that this Notice and any statement of authorship
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! are reproduced on all copies. Neither the Government nor the
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! University makes any warranty, express or implied, or assumes
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! any liability or responsibility for the use of this software.
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!
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! If software is modified to produce derivative works, such modified
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! software should be clearly marked, so as not to confuse it with
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! the version available from Los Alamos National Laboratory.
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!
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!***********************************************************************
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program scrip
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!-----------------------------------------------------------------------
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use kinds_mod ! module defining data types
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use constants ! module for common constants
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use iounits ! I/O unit manager
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use timers ! CPU timers
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use grids ! module with grid information
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use remap_vars ! common remapping variables
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use remap_conservative ! routines for conservative remap
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use remap_distance_weight ! routines for dist-weight remap
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use remap_bilinear ! routines for bilinear interp
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use remap_bicubic ! routines for bicubic interp
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use remap_write ! routines for remap output
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implicit none
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!-----------------------------------------------------------------------
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!
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! input namelist variables
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!
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!-----------------------------------------------------------------------
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character (char_len) :: &
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grid1_file, & ! filename of grid file containing grid1
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grid2_file, & ! filename of grid file containing grid2
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interp_file1, & ! filename for output remap data (map1)
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interp_file2, & ! filename for output remap data (map2)
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map1_name, & ! name for mapping from grid1 to grid2
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map2_name, & ! name for mapping from grid2 to grid1
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map_method, & ! choice for mapping method
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normalize_opt, & ! option for normalizing weights
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output_opt ! option for output conventions
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integer (kind=int_kind) :: &
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nmap ! number of mappings to compute (1 or 2)
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namelist /remap_inputs/ grid1_file, grid2_file, &
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interp_file1, interp_file2, &
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map1_name, map2_name, num_maps, &
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luse_grid1_area, luse_grid2_area, &
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map_method, normalize_opt, output_opt, &
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restrict_type, num_srch_bins
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!-----------------------------------------------------------------------
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!
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! local variables
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!
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!-----------------------------------------------------------------------
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integer (kind=int_kind) :: n, & ! dummy counter
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iunit ! unit number for namelist file
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character (char_len) :: nm_in
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#if defined ARGC
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integer :: iargc
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external iargc
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if (iargc() == 1) then
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call getarg(1, nm_in)
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else
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write(6,*) 'need name of namelist file'
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stop
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endif
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#else
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write(6,*) 'enter name for namelist file'
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read(5,*) nm_in
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#endif
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!-----------------------------------------------------------------------
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!
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! initialize timers
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!
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!-----------------------------------------------------------------------
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call timers_init
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do n=1,max_timers
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call timer_clear(n)
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end do
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!-----------------------------------------------------------------------
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!
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! read input namelist
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!
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!-----------------------------------------------------------------------
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grid1_file = 'unknown'
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grid2_file = 'unknown'
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interp_file1 = 'unknown'
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interp_file2 = 'unknown'
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map1_name = 'unknown'
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map2_name = 'unknown'
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luse_grid1_area = .false.
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luse_grid2_area = .false.
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num_maps = 2
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map_type = 1
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normalize_opt = 'fracarea'
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output_opt = 'scrip'
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restrict_type = 'latitude'
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num_srch_bins = 900
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call get_unit(iunit)
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open(iunit, file=nm_in, status='old', form='formatted')
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read(iunit, nml=remap_inputs)
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call release_unit(iunit)
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select case(map_method)
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case ('conservative')
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map_type = map_type_conserv
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luse_grid_centers = .false.
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case ('bilinear')
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map_type = map_type_bilinear
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luse_grid_centers = .true.
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case ('bicubic')
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map_type = map_type_bicubic
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luse_grid_centers = .true.
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case ('distwgt')
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map_type = map_type_distwgt
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luse_grid_centers = .true.
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case default
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stop 'unknown mapping method'
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end select
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select case(normalize_opt(1:4))
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case ('none')
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norm_opt = norm_opt_none
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case ('frac')
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norm_opt = norm_opt_frcarea
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case ('dest')
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norm_opt = norm_opt_dstarea
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case default
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stop 'unknown normalization option'
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end select
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!-----------------------------------------------------------------------
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!
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! initialize grid information for both grids
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!
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!-----------------------------------------------------------------------
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call grid_init(grid1_file, grid2_file)
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write(stdout, *) ' Computing remappings between: ',grid1_name
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write(stdout, *) ' and ',grid2_name
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!-----------------------------------------------------------------------
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!
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! initialize some remapping variables.
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!
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!-----------------------------------------------------------------------
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call init_remap_vars
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!-----------------------------------------------------------------------
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!
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! call appropriate interpolation setup routine based on type of
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! remapping requested.
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!
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!-----------------------------------------------------------------------
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select case(map_type)
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case(map_type_conserv)
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call remap_conserv
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case(map_type_bilinear)
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call remap_bilin
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case(map_type_distwgt)
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call remap_distwgt
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case(map_type_bicubic)
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call remap_bicub
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case default
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stop 'Invalid Map Type'
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end select
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!-----------------------------------------------------------------------
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!
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! reduce size of remapping arrays and then write remapping info
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! to a file.
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!
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!-----------------------------------------------------------------------
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if (num_links_map1 /= max_links_map1) then
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call resize_remap_vars(1, num_links_map1-max_links_map1)
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endif
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if ((num_maps > 1) .and. (num_links_map2 /= max_links_map2)) then
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call resize_remap_vars(2, num_links_map2-max_links_map2)
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endif
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call write_remap(map1_name, map2_name, &
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interp_file1, interp_file2, output_opt)
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!-----------------------------------------------------------------------
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end program scrip
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!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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