setenv <infile> <path name>
setenv <outfile> <path name>
m3wndw [<infile> <outfile>]
<and respond to the prompts>
where infile and outfile are the
logical names of the input
and output files. If they are not present, the program will
prompt the user for both input file and output file logical
names.
M3WNDW program windows the
gridded input file to a
specified subrectangle of the horizontal grid, for a specified
time period and writes the result to a new gridded Models-3 file.
The definition of the subrectangle is specified either by a
named grid in the current
GRIDDESC file, or by bounds
LOCOL, LOROW, HICOL, and
HIROW for the columns and rows (which must fit entirely
within the NCOLS-by-NROWS grid of the input
file)
1 <= LOCOL <= col <= HICOL <= NCOLS
1 <= LOROW <= row <= HIROW <= NROWS
Before you run the program,
you need to assign logical names
to the physical file names of both files, according to Models-3
conventions, using the operation
"setenv <lname> <pname>"
The program will prompt you for the logical names you
have chosen for the input files, and then extensively for the options
to choose; the prompts will have default responses which can be accepted
by hitting <RETURN>. The specification of starting date and time,
target date and time, and duration for the run follow Models-3
date and time conventions.
See also program bcwndw for constructing boundary condition files for windows into gridded files.
If you want to run this program in batch mode
(from a script), the recommended way to develop the script is to
run the program once interactively noting the pattern of responses
to prompts which generate the particular windowing you want. The
pattern of responses then becomes either a command-input file
which is redirected into the program in the script, or becomes a
"here-document" fed into the execution.
Source code for program m3wndwis available
under the GNU GPL License, Version 2,
and can be downloaded here from CMAS or
here from GitHub.
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