Processing and Viewing the Output

The standard QTCM1 package includes pre-written scripts, routines, and control files that utilize standard FORTRAN 77, NCAR Graphics or GrADS to plot the time series of selected output fields. These files are found in directory proc. These are intended to provide helpful examples of common diagnostics for users to modify! (Please note that we don't have the personnel to support all potential variants of diagnostics).

The FORTRAN 77 and NCAR Graphics programs require compilation before being used for the first time. These include:

xy.F

NCAR Graphics program that creates a gmeta file from the file timeseries.out that can be viewed by idt or ctrans. 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 QTCM1 provide GrADS binary (Fortran sequential unformatted) data. Note that in GrADS, for , , 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 QTCM1 tar package include:

8298.ctl

This control file is configured for monthly output from a 17-year run forced with observed SST. Note that this file assumes the output is produced on a machine using ``big-endian'' format (e.g. SUN).

par.ctl

The control file for QTCM1 parameters used in the basis functions of model variables.

qtcmpar.dat

The data file for QTCM1 parameters used in the basis functions of model variables.

qtcmpar.gs

Script for defining QTCM1 parameters used in calculating surface wind, etc.

8298.gs

Calculates climatology of a variety of fields for a 17-year run with output given every 30 days. Climatological fields are denoted by attaching a ``c'' to the end of the field name, e.g. ``precc'' for climatology of ``prec'', the precipitation. To use 8298.gs, qtcmpar.gs must be present in the same directory.

ca.gs

Generic routine to calculate climatology and anomaly for arbitrary periods.

precEQ.gs

Script to plot Hovmuller diagram of precipitation on Equator.

ensocomp_jja.gs

Script to plot composite ENSO precipitation anomaly in JJA.

nino3.gs

Script to calculate various statistical indices associated with NINO3.

nino3corr.gs

Script to plot maps of Nino3-Precipitation and Nino3-surface temperature correlations.

flux.gs

Calculates various radiative fluxes.

u.gs

Calculates winds at different model levels.

vert.gs

Script to plot the vertical cross section of climatological zonally-averaged winds.

All the scripts listed above require that you first open a GrADS control file before use. GrADS scripts end with the extension ``gs'', while GrADS control files end with ``ctl''.

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