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PIPS

PIPS: U.S. Navy Polar Ice Prediction

pips_1.ncl: Creates single pane images of scalar variables on a polar projection.

gsn_csm_vector_scalar_map_polar is the plot interface that puts plots vectors on top a scalar field.

The datafile used in this example has a boundary problem, so that the first column of longitude data is bogus. In order to plot this, this column had to be removed.

This is a very large grid and it takes a while to draw. If you want to subset the data, you need to do it in both the attribute definition and the plot call. e.g.

   hi@lon2d = lon2d(:,1::10) 
   hi@lat2d = lat2d(:,1::10)
   plot     = gsn_csm_contour_map_polar(wks,hi(::10,::10),res)