;================================================;
;  conwomap_1.ncl
;================================================;
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"   
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"   
; ================================================;
begin
;=================================================;
; open file and read in data
;=================================================;
  f    = addfile("cone.nc","r")
  u  = f->u(4,:,:)                
;=================================================;
; PLOT 2
;=================================================;
  wks  = gsn_open_wks("ps","conwomap")     ; open a ps file
  plot = gsn_csm_contour(wks,u,False)      ; contour the variable

; note that the default plot draw here still uses the long_name and
; units of the variable as labels.

; In this file, the coordinate variables of the data are listed as 
; lat and long, but they are really just index points, which makes this
; data suitable for plotting without a map.
  end