background topography

[Jennifer Adams]

ftp://grads.iges.org/grads/scripts/makebg.gs

This script shows you how the topographic background maps that are
used on wxmaps.org are made with GrADS. This script requires an
OPeNDAP-enabled version of GrADS and the Image Magick routine
'composite' (which is the new name for the old routine 'combine').
You can also try it with higher resolution topo data under http://monsoondata.org:9090/dod/topo/