Program M3WNDW


    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.


The 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.

Previous: M3TSHIFT


Up: Related Programs

To: Models-3/EDSS I/O API: The Help Pages