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Preliminary bathymetry of Shoup Basin and late Holocene changes of Shoup Glacier, Alaska

Water-Resources Investigations Report 94-4093

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Abstract

Shoup Glacier is a retreating, tidewater-calving glacier in northeast Prince William Sound, Alaska. Historical records, vegetation distribution, and sediment depth in Shoup Bay indicate that the glacier reached a late Holocene maximum at the mouth of Shoup Bay prior to 1750. When first observed around 1900, the terminus was stable on a series of shallow, bedrock obstructions between Shoup Bay and Shoup Basin, 2 miles from the late Holocene maximum. Shoup Glacier receded into tidewater in 1957 and in the following 33 years retreated 1.3 miles to expose Shoup Basin, a deep (more than 350 feet) basin with virtually no sediment accumulation. Shoup Glacier is expected to stabilize at the head of Shoup Basin shortly after the year 2000 and will not readvance if present climatic conditions continue.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Preliminary bathymetry of Shoup Basin and late Holocene changes of Shoup Glacier, Alaska
Series title:
Water-Resources Investigations Report
Series number:
94-4093
Edition:
-
Year Published:
2000
Language:
ENGLISH
Description:
11 p.; 8 illus.; 2 plates