GEMPAK Exam

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26 GEMPAK Exam

Here we will build an script that may be used either interactively, or as a batch script. While you may not wish to run this script at your site, you should be able to apply your knowledge of GEMPAK and similar principles to either create your own scripts, or to modify those provided with the GEMPAK distribution such as the EZ scripts.

We will build this script in pieces so that you may follow more easily.

Create a shell script to allow the user to interactively (graphically) select the area they wish to use for eventual application.
Now modify the shell script above to be run either interactively, or by specifying the area on the command line with the shell invocation.
Expand your script to plot the location of lightning strikes for the desired area for the current hour today. Use MARK to plot a suitably sized circle for each lightning location.
Use the SGNL parameter stored in the NLDN file to plot stikes with SGNL < -400 with a '-', SGNL > 400 with a '+', and values from -400 to 400 with a dot.
Using the result from #3 above, create a gif image for each hour today. Use a different color for each hour.
You may view the animated GIF frames output from #5.

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