Processing and Viewing the Output

The standard QTCM1 package includes GrADS scripts, to compute various quantities from the output files. 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 GrADS scripts provided do not need to be compiled; just run them within the GrADS program. For more information on the GrADS system go to http://grads.iges.org/grads. The output files from QTCM1 provide GrADS binary (Fortran sequential unformatted) data. Some of the GrADS scripts and control files provided with with the QTCM1 tar package include:

ca.gs

Generic routine to calculate climatology and anomaly for arbitrary periods.

clim.gs

Four season plots for precipitation, fluxes and winds.

ensocomp.gs

Script to plot composite ENSO precipitation anomaly in DJF and JJA.

flux.gs

Calculates various radiative fluxes.

nino3corr.gs

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

nino3.gs

Script to calculate various statistical indices associated with NINO3.

qtcmpar.gs

Script for defining QTCM1 parameters used in calculating surface wind, etc. Automatically generated by par.f90.

timelongEQ.gs

Script for time-longitude plot of precipitation on Equator.

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. Sample figures for this and other versions of the model may be found at http://www.atmos.ucla.edu/~csi/QTCM/sampfigs.html. For more information on visualizing results using other graphics packages see Section 2.4.2.