Lake Ellsworth

John Woodward, Martin J. Siegert, Andy M. Smith, Neil Ross

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Subglacial Lake Ellsworth is located near the Ellsworth Mountains in West Antarctica at 78.9°S 90.6°W. The lake basin is in the center of the West Antarctic Ice Sheet (WAIS) in the Pine Island Glacier drainage basin, 20 km from the ice divide with the Institute Ice Stream. The lake is approximately 15 km long and over 3 km across at its widest point. Seismic surveys have revealed that the lake is over 100 m deep in places. The ice sheet above the lake is between 2.9 and 3.3 km thick, with the lake surface over 1 km beneath present sea level within a distinct topographic hollow, ∼1.5 km deeper than the surrounding subglacial bed. The basin is fjord-like in its topographic setting, and is one of a series of fjord-like over-deepenings on the western flank of the Ellsworth Subglacial Highlands.

This summary of our current knowledge will document the series of radio-echo sounding (RES) transects and field campaigns from which the lake has been identified. Basal thermal regime...
Original languageEnglish
Title of host publicationEncyclopedia of Snow Ice and Glaciers
EditorsV. P. Singh, U. K. Haritashya, P. Singh
Place of PublicationDordrecht
PublisherSpringer
Pages683-685
Number of pages4
ISBN (Electronic)9789048126422
ISBN (Print)9789048126415
DOIs
Publication statusPublished - 2011

Publication series

NameEncyclopedia of Earth Sciences Series
PublisherSpringer
ISSN (Print)1388-4360

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