Processing and Viewing the Output

The standard QTCM package includes pre-written scripts, routines, and control files that utilize standard FORTRAN77, NCAR Graphics or GrADS to plot the time series of selected output fields. These files are found in directory proc.

The FORTRAN77 and NCAR Graphics programs require compilation before being used for the first time. These include:

checkdata.f

FORTRAN program to find out how many time levels QTCM output files q.out or qmean.out contain.

xy.f

NCAR Graphics program that creates a gmeta file from the file timeseries.out that can be viewed by idt. To create this command, compile xy.f using FORTRAN with links to selected NCAR Graphics libraries.

The GrADS scripts provided do not need to be compiled; just execute them within the GrADS program. The output files from QTCM provide GrADS formatted binary data. Note that in GrADS, for NX=64, NY=33, over global longitude and latitude S to N, grid box (1,1) of the output is located at longitude E, latitude S. Some of the GrADS scripts and control files provided with with the QTCM tar package include:

o.ctl

This control file is configured for monthly output from a 10-year run forced with climatological SST. Note that this file assumes the output is produced on a machine using ``big-endian'' format (e.g. SUN).

qtcmpar.gs

Script for defining QTCM parameters used in calculating surface wind, etc.

dump.gs

This script creates a file called ``meta'' which contains January and July climatology plots for essentially every field output. Requires output from a 10-year run with output given every 30 days. To create a Postscript file from ``meta,'', type in the command

gxps -i meta -o fname

where fname is the name of the Postscript file being created.

All GrADS scripts end with the extension ``gs'', while GrADS control files end with ``ctl''.

For more information on the output file formats, see Section 2.4.2.