4: Visualization option with GEOV

4: Visualization option with GEOV#

Visualization with GEOV

CESM history files are in standard netCDF format, and may be analyzed with standard analysis tools, including Matlab, Python, IDL, NCL, and NCO and ncview.

GEOV is an IDL-based viewer with a graphical user interface (GUI) for geophysical history files created by NCAR’s CAM, WACCM and MOZART models. GEOV can be downloaded from the WACCM webpage
http://www.cesm.ucar.edu/working_groups/Whole-Atmosphere/code-release.html
It is useful for quick viewing and comparisons.

#To use GEOV on derecho/casper:

Add the idl module:
module load idl

Then go to the location of GEOV and start it

cd /glade/u/home/fvitt/geov4.8e
idl geov

Then you can use the GEOV interface to find files and explore the model output. Some examples of using the GEOV interface are below:

GEOV opening

Figure 1: Example using GEOV to browse to a file to open.

GEOV 2 files

Figure 2: Example using GEOV to plot surface layer ozone for two files.

GEOV difference

Figure 3: Example using GEOV to look at zonal average difference in model ozone (left).

If you quit GEOV, you will need to type exit to also exit IDL.