Plotting a Cross-section from WRF Model output with NCAR Command Language (ncl)
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Following is an explanation on how to plot a vertical cross-section of a WRF model domain with NCAR Command Language (ncl)[1].
- Note
- Before running this script it is important to have a file named .hluresfile in your home directory. The file should contain something like:
*wkColorMap : WhViBlGrYeOrReWh *wkBackgroundColor : white *wkForegroundColor : black *FuncCode : ~ *TextFuncCode : ~ *Font : helvetica *wkWidth : 900 *wkHeight : 900
For more information see: ncl web site.
Dependencies
- Need the following programs installed
-
- NCAR Graphics with ncl [2]. Set the $NCARG_ROOT environment variable to the correct installation location. (e.g.~/usr/local/ncarg). This installation will also provide the command psplit that can be used to split a multi-page postscript document to individual pages.
- Ghostscript tools (normally available in many standard UNIX installations. This provide eps2eps command.
- ImageMagick graphics utilities [3]
- gifsicle program for making GIF animations. [4]
Download
Usage
- Edit the file ./pltprogs/CONSTANTS.bash to reflect the paths in your computer.
- Go to the directory where wrfplot.bash. Copy or link the wrf output file to this place.
- Execute the following command
./wrfplot.bash
Upon successful execution the png format images and datasets used to plot them will be available in the folder ./output.
