Global Terrain Classification

Both maps use the GTOPO30 data set, with 1° regions.

a is a three parameter classification using

b is a two parameter classification using

Note that in both classifications, the continental ice sheets in Greenland and Antarctica appear different from any other locations on earth.  Both area show low steepness, strong organization, and high elevations, which controls their distinctive colors.  In contrast the Himalayas show strong steepness, low organization, and high elevations, characteristic of many of the mountain ranges.

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