begin f = addfile ("$NCARG_ROOT/lib/ncarg/data/cdf/uv300.nc","r") u = f->U(0,:,{82}) ; Read "U" off the file wks = gsn_open_wks ("png","xy2b_color1") gsn_define_colormap(wks,"BlAqGrYeOrReVi200") res = True res@xyLineColor = 2 plot = gsn_csm_y (wks,u,res) ; Draw an XY plot end