Overlays different plot id's over a map background (deprecated in version 5.1.0).
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" ; These two libraries are automatically load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl" ; loaded from NCL V6.4.0 onward. ; No need for user to explicitly load. procedure wrf_map_overlay ( wks : graphic, map : graphic, plots [*] : graphic, res  : logical )
Graphical map background, possibly created by a call to wrf_map.plots
A plot resource. Set to True if you want to advance the frame before creating the next frame. Set to False if you do not want to advance the frame. Use False only if you plan on adding additional text/lines/symbols to the frame before advancing it.
Overlay a number of graphical plots over a map background on the given workstation.
wrf_map_overlay is part of a library of functions and procedures in WRFUserARW.ncl written to help users plot ARW WRF model data.
WRF-related questions should be sent to firstname.lastname@example.org.
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl" a = addfile("wrfout_d01_2000-01-24_12:00:00.nc","r") wks = gsn_open_wks("x11","test") time = 1 slp = wrf_user_getvar(a,"slp",time) ; slp wrf_smooth_2d( slp, 3 ) ; smooth slp tc2 = wrf_user_getvar(a,"T2",time) ; T2 in Kelvin u10 = wrf_user_getvar(a,"U10",time) ; u at 10 m v10 = wrf_user_getvar(a,"V10",time) ; v at 10 m map = wrf_map(wks,a,True) rest = True rest@cnFillOn = True contour_t = wrf_contour(a,wks,tc2,rest) resp = True resp@cnLineColor = "NavyBlue" contour_p = wrf_contour(a,wks,slp,resp) resw = True vector = wrf_vector(a,wks,u10,v10,resw) wrf_map_overlay(wks,map,(/contour_t,contour_p,vector/),True)You can see some other example scripts and their resultant images at: