Abstract
The limit of Great Salt Lake's maximum expansion onto the floor of the Great Salt Lake Desert during Holocene time is marked by a break in slope which is clearly depicted in terrain models which merge Thematic Mapper (TM) multispectral scanner data and Aerial Profiling of Terrain System (APTS) laser profile data. Mean elevations of APTS-coincident TM pixels are strongly correlated with reflectance in TM Bands 5 and 7 when and where sufficient moisture contrasts among terrain components are high. TM-APTS models and field surveys place the highest Holocene standing water at an elevation of 4221 ft (1286.7 m).
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