Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering

MJ Siegert; G Leysinger Vieli

Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering

MJ Siegert, G Leysinger Vieli

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

Abstract

Far-field low-latitude sea-level records have been used to infer a significant contribution (15 m) from the Antarctic ice sheet to mwp-1A between 14,500 and 13,000 years ago. West Antarctica has a well constrained post LGM history, involving the retreat of ice during the early Holocene. This leaves East Antarctica as a potential source for mwp-1A. Englacial layers, measured by airborne radar and dated between 15,000 and 10,000 years ago, are widespread across East Antarctica. Importantly, the bulk of Dome C, which has a bed suppressed below sea level and is consequently more likely to be involved in volume change than other regions of East Antarctica, is well covered by radar transects. The structures measured by radar layering will be described from which any evidence for or against East Antarctica losing 20% of its mass from Dome C will be reported.

Translated title of the contribution	Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering
Original language	English
Title of host publication	AGU Fall meeting, San Francisco
Volume	86
Publication status	Published - 2005

Bibliographical note

Conference Proceedings/Title of Journal: EOS, Transaction of the American Geophysical Union
Conference Organiser: AGU
Other identifier: C21B-1093

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@inproceedings{a7680e7cc86447ffb9550cea09945bf9,

title = "Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering",

abstract = "Far-field low-latitude sea-level records have been used to infer a significant contribution (15 m) from the Antarctic ice sheet to mwp-1A between 14,500 and 13,000 years ago. West Antarctica has a well constrained post LGM history, involving the retreat of ice during the early Holocene. This leaves East Antarctica as a potential source for mwp-1A. Englacial layers, measured by airborne radar and dated between 15,000 and 10,000 years ago, are widespread across East Antarctica. Importantly, the bulk of Dome C, which has a bed suppressed below sea level and is consequently more likely to be involved in volume change than other regions of East Antarctica, is well covered by radar transects. The structures measured by radar layering will be described from which any evidence for or against East Antarctica losing 20% of its mass from Dome C will be reported.",

author = "MJ Siegert and {Leysinger Vieli}, G",

note = "Conference Proceedings/Title of Journal: EOS, Transaction of the American Geophysical Union Conference Organiser: AGU Other identifier: C21B-1093",

year = "2005",

language = "English",

volume = "86",

booktitle = "AGU Fall meeting, San Francisco",

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TY - GEN

T1 - Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering

AU - Siegert, MJ

AU - Leysinger Vieli, G

N1 - Conference Proceedings/Title of Journal: EOS, Transaction of the American Geophysical Union Conference Organiser: AGU Other identifier: C21B-1093

PY - 2005

Y1 - 2005

N2 - Far-field low-latitude sea-level records have been used to infer a significant contribution (15 m) from the Antarctic ice sheet to mwp-1A between 14,500 and 13,000 years ago. West Antarctica has a well constrained post LGM history, involving the retreat of ice during the early Holocene. This leaves East Antarctica as a potential source for mwp-1A. Englacial layers, measured by airborne radar and dated between 15,000 and 10,000 years ago, are widespread across East Antarctica. Importantly, the bulk of Dome C, which has a bed suppressed below sea level and is consequently more likely to be involved in volume change than other regions of East Antarctica, is well covered by radar transects. The structures measured by radar layering will be described from which any evidence for or against East Antarctica losing 20% of its mass from Dome C will be reported.

AB - Far-field low-latitude sea-level records have been used to infer a significant contribution (15 m) from the Antarctic ice sheet to mwp-1A between 14,500 and 13,000 years ago. West Antarctica has a well constrained post LGM history, involving the retreat of ice during the early Holocene. This leaves East Antarctica as a potential source for mwp-1A. Englacial layers, measured by airborne radar and dated between 15,000 and 10,000 years ago, are widespread across East Antarctica. Importantly, the bulk of Dome C, which has a bed suppressed below sea level and is consequently more likely to be involved in volume change than other regions of East Antarctica, is well covered by radar transects. The structures measured by radar layering will be described from which any evidence for or against East Antarctica losing 20% of its mass from Dome C will be reported.

M3 - Conference Contribution (Conference Proceeding)

VL - 86

BT - AGU Fall meeting, San Francisco

ER -

Post LGM history of the East Antarctic Ice Sheet From Analysis of Internal Radar Layering

Abstract

Bibliographical note

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