Relief, Summit Level, Base Level, Geophysical Relief

Parameter maps can be created from a popup menu, selected in two places:

All require a region size (the full size, half of which is computed in each direction).  Within the region the max and min elevations are computed.  Then:

Shaded relief with Elevation colors Relief, 1 km regions Geophysical Relief, 1 km regions
Summit elevations, 1 km regions Base level elevations, 1 km regions  

References for geophysical relief

Last revision 3/2/2013