;res = True ; plot mods desired
; res@tiMainString = ""
;res@vcRefMagnitudeF = 50.0 ; add a reference vector
;res@vcRefLengthF = 0.2 ; what the ref length is
;res@vcGlyphStyle = "CurlyVector" ; turn on curly vectors
res = True ; plot mods desired
res@gsnMaximize = True ; Make plot fit the frame
res@cnFillOn = True ; turn on color fill
res@cnLinesOn = False ; turn of contour lines
res@cnLevelSpacingF = 0.05 ; contour spacing
res@cnFillPalette = "BlAqGrYeOrRe"
;res@lbOrientation = "Vertical"
res@gsnAddCyclic = False ; data already has cyclic poin
; res@cnLevelSelectionMode = "ManualLevels" ; manually set the contour levels with the following 3 resources
;res@cnMinLevelValF = -10.0 ; set the minimum contour level
;res@cnMaxLevelValF = 10. ; set the maximum contour level
;res@cnLevelSpacingF = 0.00025 ; set the interval between contours