WRF ARW User's Guide - MMM - UCAR

POST-PROCESSING
; Plotting options for T
opts = res ; Add basic resources
opts@cnFillOn = True ; Shaded plot
opts@ContourParameters = (/ -20., 90., 5./) ; Contour intervals
opts@gsnSpreadColorEnd = -3
contour_tc = wrf_contour(a,wks,tf2,opts) ; Create plot
delete(opts)
; Plotting options for SLP
opts = res ; Add basic resources
opts@cnLineColor = "Blue" ; Set line color
opts@cnHighLabelsOn = True ; Set labels
opts@cnLowLabelsOn = True
opts@ContourParameters = (/ 900.,1100.,4./) ; Contour intervals
contour_psl = wrf_contour(a,wks,slp,opts) ; Create plot
delete(opts)
; Plotting options for Wind Vectors
opts = res ; Add basic resources
opts@FieldTitle = "Winds" ; Overwrite the field title
opts@NumVectors = 47 ; Density of wind barbs
vector = wrf_vector(a,wks,u10,v10,opts) ; Create plot
delete(opts)
; MAKE PLOTS
plot = wrf_map_overlays(a,wks, \
(/contour_tc,contour_psl,vector/),pltres,mpres)
;---------------------------------------------------------------
end
Extra sample scripts are available at,
http://www.mmm.ucar.edu/wrf/OnLineTutorial/Graphics/NCL/NCL_examples.htm
Run NCL scripts
1. Ensure NCL is successfully installed on your computer.
2. Ensure that the environment variable NCARG_ROOT is set to the location where
NCL is installed on your computer. Typically (for cshrc shell), the command will
look as follows:
setenv NCARG_ROOT /usr/local/ncl
WRF-ARW V3: User’s Guide 9-6