Figures (from left to right):
Jakobshavn Glacier, Greenland, Classified Landsat ETM+ imagery, B. Csatho, OSU, USA
Canada Glacier, Antarctica, DEM from airborne laser scanning,T. Schenk, OSU, USA; http: gscphoto.ceegs.ohio-state.edu/DEM
Lake Fryxell, Dry Valleys, Antarctica, J. Mastroianni, NSF, USA; http://www.polar.org/Public/PhotosToc.htm
Lambert Glacier, Antarctica, ice velocity from IFSAR, K. Jezek, OSU, USA; http://bprc.mps.ohio-state.edu/rsl/radarsat/radarsat.html