Switch-off of a major enhanced ice flow unit in East Antarctica

DM Rippin; MJ Siegert; JL Bamber; DG Vaughan; HFJ Corr

doi:10.1029/2006GL026648

Switch-off of a major enhanced ice flow unit in East Antarctica

DM Rippin, MJ Siegert, JL Bamber, DG Vaughan, HFJ Corr

Research output: Contribution to journal › Article (Academic Journal) › peer-review

24 Citations (Scopus)

Abstract

The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its configuration over glacial-interglacial cycles. Here, we present the results of a radio-echo sounding survey from Coats Land, East Antarctica, which suggests that parts of the EAIS outlet drainage system may have changed significantly since the Last Glacial Maximum. We have identified an enhanced flow unit from buckled internal layering and smooth bed morphology that is no longer active. We believe this feature to have shut down at some point since the Last Glacial Maximum, ∼20 ka BP.

Translated title of the contribution	Switch-off of a major enhanced ice flow unit in East Antarctica
Original language	English
Pages (from-to)	1 - 6
Number of pages	6
Journal	Geophysical Research Letters
Volume	33 (L15501)
DOIs	https://doi.org/10.1029/2006GL026648
Publication status	Published - Aug 2006

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Publisher: American Geophysical Union

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title = "Switch-off of a major enhanced ice flow unit in East Antarctica",

abstract = "The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its configuration over glacial-interglacial cycles. Here, we present the results of a radio-echo sounding survey from Coats Land, East Antarctica, which suggests that parts of the EAIS outlet drainage system may have changed significantly since the Last Glacial Maximum. We have identified an enhanced flow unit from buckled internal layering and smooth bed morphology that is no longer active. We believe this feature to have shut down at some point since the Last Glacial Maximum, ∼20 ka BP.",

author = "DM Rippin and MJ Siegert and JL Bamber and DG Vaughan and HFJ Corr",

note = "Publisher: American Geophysical Union",

year = "2006",

month = aug,

doi = "10.1029/2006GL026648",

language = "English",

volume = "33 (L15501)",

pages = "1 -- 6",

journal = "Geophysical Research Letters",

issn = "1944-8007",

publisher = "American Geophysical Union",

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TY - JOUR

T1 - Switch-off of a major enhanced ice flow unit in East Antarctica

AU - Rippin, DM

AU - Siegert, MJ

AU - Bamber, JL

AU - Vaughan, DG

AU - Corr, HFJ

N1 - Publisher: American Geophysical Union

PY - 2006/8

Y1 - 2006/8

N2 - The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its configuration over glacial-interglacial cycles. Here, we present the results of a radio-echo sounding survey from Coats Land, East Antarctica, which suggests that parts of the EAIS outlet drainage system may have changed significantly since the Last Glacial Maximum. We have identified an enhanced flow unit from buckled internal layering and smooth bed morphology that is no longer active. We believe this feature to have shut down at some point since the Last Glacial Maximum, ∼20 ka BP.

AB - The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its configuration over glacial-interglacial cycles. Here, we present the results of a radio-echo sounding survey from Coats Land, East Antarctica, which suggests that parts of the EAIS outlet drainage system may have changed significantly since the Last Glacial Maximum. We have identified an enhanced flow unit from buckled internal layering and smooth bed morphology that is no longer active. We believe this feature to have shut down at some point since the Last Glacial Maximum, ∼20 ka BP.

U2 - 10.1029/2006GL026648

DO - 10.1029/2006GL026648

M3 - Article (Academic Journal)

SN - 1944-8007

VL - 33 (L15501)

SP - 1

EP - 6

JO - Geophysical Research Letters

JF - Geophysical Research Letters

ER -

Switch-off of a major enhanced ice flow unit in East Antarctica

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