Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-24T10:47:18.146Z Has data issue: false hasContentIssue false

An inventory of Antarctic sub-glacial lakes

Published online by Cambridge University Press:  12 May 2004

M.J. Siegert
Affiliation:
Centre for Glaciology, Institute of Earth Studies, University of Wales, Aberystwyth, Dyfed SY23 3DB, UK
J.A. Dowdeswell
Affiliation:
Centre for Glaciology, Institute of Earth Studies, University of Wales, Aberystwyth, Dyfed SY23 3DB, UK
M.R. Gorman
Affiliation:
Centre for Glaciology, Institute of Earth Studies, University of Wales, Aberystwyth, Dyfed SY23 3DB, UK
N.F. McIntyre
Affiliation:
Earth Observation Sciences Ltd, Broadmede, Farnham Business Park, Farnham, Surrey GU9 8QL, UK

Abstract

An extensive analogue database of 60 MHz radio-echo sounding records of Antarctica (covering 50% of the ice sheet) is held at the Scott Polar Research Institute, University of Cambridge. This database was analysed in order to determine the presence and location of Antarctic sub-glacial lakes. In total, 77 sub-glacial lake-type records were identified, 13 more than detected in previous studies. An inventory of these sub-glacial lakes includes geographical coordinates, minimum length and overlying ice thickness for each lake. Information concerning the location of these lakes indicates that the majority (~70%) are found in the proximity of ice divides at Dome C and Ridge B within East Antarctica.

Type
Papers—Earth Sciences and Glaciology
Copyright
© Antarctic Science Ltd 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)