Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011
We measure the grounding line retreat of glaciers draining the Amundsen Sea sector of West Antarctica using Earth Remote Sensing (ERS-1/2) satellite radar interferometry from 1992 to 2011. Pine Island Glacier retreated 31 km at its center, with most retreat in 2005-2009 when the glacier ungrounded f...
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ftcdlib:oai:escholarship.org/ark:/13030/qt0wz826xt 2023-05-15T13:24:03+02:00 Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 Rignot, E Mouginot, J Morlighem, M Seroussi, H Scheuchl, B 3502 - 3509 2014-05-28 application/pdf https://escholarship.org/uc/item/0wz826xt unknown eScholarship, University of California qt0wz826xt https://escholarship.org/uc/item/0wz826xt CC-BY CC-BY Geophysical Research Letters, vol 41, iss 10 Antarctica mass balance interferometry glacier dynamics marine instability Meteorology & Atmospheric Sciences article 2014 ftcdlib 2020-03-20T23:55:51Z We measure the grounding line retreat of glaciers draining the Amundsen Sea sector of West Antarctica using Earth Remote Sensing (ERS-1/2) satellite radar interferometry from 1992 to 2011. Pine Island Glacier retreated 31 km at its center, with most retreat in 2005-2009 when the glacier ungrounded from its ice plain. Thwaites Glacier retreated 14 km along its fast flow core and 1 to 9 km along the sides. Haynes Glacier retreated 10 km along its flanks. Smith/Kohler glaciers retreated the most, 35 km along its ice plain, and its ice shelf pinning points are vanishing. These rapid retreats proceed along regions of retrograde bed elevation mapped at a high spatial resolution using a mass conservation technique that removes residual ambiguities from prior mappings. Upstream of the 2011 grounding line positions, we find no major bed obstacle that would prevent the glaciers from further retreat and draw down the entire basin. © 2014. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier Thwaites Glacier West Antarctica University of California: eScholarship Amundsen Sea Haynes Glacier ENVELOPE(-109.500,-109.500,-75.417,-75.417) Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) West Antarctica |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Antarctica mass balance interferometry glacier dynamics marine instability Meteorology & Atmospheric Sciences |
spellingShingle |
Antarctica mass balance interferometry glacier dynamics marine instability Meteorology & Atmospheric Sciences Rignot, E Mouginot, J Morlighem, M Seroussi, H Scheuchl, B Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
topic_facet |
Antarctica mass balance interferometry glacier dynamics marine instability Meteorology & Atmospheric Sciences |
description |
We measure the grounding line retreat of glaciers draining the Amundsen Sea sector of West Antarctica using Earth Remote Sensing (ERS-1/2) satellite radar interferometry from 1992 to 2011. Pine Island Glacier retreated 31 km at its center, with most retreat in 2005-2009 when the glacier ungrounded from its ice plain. Thwaites Glacier retreated 14 km along its fast flow core and 1 to 9 km along the sides. Haynes Glacier retreated 10 km along its flanks. Smith/Kohler glaciers retreated the most, 35 km along its ice plain, and its ice shelf pinning points are vanishing. These rapid retreats proceed along regions of retrograde bed elevation mapped at a high spatial resolution using a mass conservation technique that removes residual ambiguities from prior mappings. Upstream of the 2011 grounding line positions, we find no major bed obstacle that would prevent the glaciers from further retreat and draw down the entire basin. © 2014. American Geophysical Union. All Rights Reserved. |
format |
Article in Journal/Newspaper |
author |
Rignot, E Mouginot, J Morlighem, M Seroussi, H Scheuchl, B |
author_facet |
Rignot, E Mouginot, J Morlighem, M Seroussi, H Scheuchl, B |
author_sort |
Rignot, E |
title |
Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
title_short |
Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
title_full |
Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
title_fullStr |
Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
title_full_unstemmed |
Widespread, rapid grounding line retreat of Pine Island, Thwaites, Smith, and Kohler glaciers, West Antarctica, from 1992 to 2011 |
title_sort |
widespread, rapid grounding line retreat of pine island, thwaites, smith, and kohler glaciers, west antarctica, from 1992 to 2011 |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
https://escholarship.org/uc/item/0wz826xt |
op_coverage |
3502 - 3509 |
long_lat |
ENVELOPE(-109.500,-109.500,-75.417,-75.417) ENVELOPE(-101.000,-101.000,-75.000,-75.000) ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Amundsen Sea Haynes Glacier Pine Island Glacier Thwaites Glacier West Antarctica |
geographic_facet |
Amundsen Sea Haynes Glacier Pine Island Glacier Thwaites Glacier West Antarctica |
genre |
Amundsen Sea Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier Thwaites Glacier West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier Thwaites Glacier West Antarctica |
op_source |
Geophysical Research Letters, vol 41, iss 10 |
op_relation |
qt0wz826xt https://escholarship.org/uc/item/0wz826xt |
op_rights |
CC-BY |
op_rightsnorm |
CC-BY |
_version_ |
1766377145440927744 |