Subglacial Lake Ellsworth: a candidate for in situ exploration in West Antarctica

Radio-echo sounding reveals a 10 km-long lake beneath similar to3.4 km of ice near the Ellsworth Mountains in West Antarctica, 20 km from the ice divide. Subglacial Lake Ellsworth is located within a distinct topographic hollow, which is similar to1.5 km deeper than the surrounding bed. Judging by bed slopes flanking the lake, the water depth is at least 10s of metres. Calculations of basal temperature reveal the ice base to be warm both now and during full glacial periods. As the environments of subglacial lakes are broadly similar, life may be expected in Lake Ellsworth as in any other. Given this, its physical characteristics, and the fact that the West Antarctic Ice Sheet has been accessed on several occasions, Lake Ellsworth is an excellent candidate for in situ examination.

Details

Publication status:
Published
Author(s):
Authors: Siegert, Martin J., Hindmarsh, Richard, Corr, Hugh, Smith, Andy, Woodward, John, King, Edward C., Payne, Antony J., Joughin, Ian

On this site: Andy Smith, Edward King, Hugh Corr, Richard Hindmarsh, Richard Hindmarsh
Date:
1 January, 2004
Journal/Source:
Geophysical Research Letters / 31
Page(s):
4pp
Digital Object Identifier (DOI):
https://doi.org/10.1029/2004GL021477