TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF
Surface melt and subsequent firn air depletion can ultimately lead to disintegration of Antarctic ice shelves causing grounded glaciers to accelerate and sea level to rise. In the Antarctic Peninsula (AP), foehn winds enhance melting near the grounding line, which in the recent past has led to the d...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.868109 https://doi.org/10.1594/PANGAEA.868109 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.868109 2024-09-15T17:44:38+00:00 TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF Lenaerts, Jan T M Lhermitte, Stef Drews, Reinhard Ligtenberg, Stefan R M Berger, Sophie Helm, Veit Smeets, Paul van den Broeke, Michiel R van de Berg, Willem Jan van Meijgaard, Erik Eijkelboom, Mark Eisen, Olaf Pattyn, Frank LATITUDE: -71.200000 * LONGITUDE: 29.800000 2016 image/tiff, 4.4 GBytes https://doi.pangaea.de/10.1594/PANGAEA.868109 https://doi.org/10.1594/PANGAEA.868109 en eng PANGAEA Overview image of the TDX Mosaic BIS 2013. https://hs.pangaea.de/Maps/bis/TDX_Mosaic_BIS_2013_overview.png https://doi.pangaea.de/10.1594/PANGAEA.868109 https://doi.org/10.1594/PANGAEA.868109 UNKNOWN: Licensing unknown: Please contact principal investigator/authors to gain access and request licensing terms Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess Supplement to: Lenaerts, Jan T M; Lhermitte, Stef; Drews, Reinhard; Ligtenberg, Stefan R M; Berger, Sophie; Helm, Veit; Smeets, Paul; van den Broeke, Michiel R; van de Berg, Willem Jan; van Meijgaard, Erik; Eijkelboom, Mark; Eisen, Olaf; Pattyn, Frank (2016): Meltwater produced by wind-albedo interaction stored in an East Antarctic ice shelf. Nature Climate Change, https://doi.org/10.1038/nclimate3180 Roi_Baudoin_ice_shelf SAT Satellite remote sensing dataset 2016 ftpangaea https://doi.org/10.1594/PANGAEA.86810910.1038/nclimate3180 2024-08-27T23:49:29Z Surface melt and subsequent firn air depletion can ultimately lead to disintegration of Antarctic ice shelves causing grounded glaciers to accelerate and sea level to rise. In the Antarctic Peninsula (AP), foehn winds enhance melting near the grounding line, which in the recent past has led to the disintegration of the most northerly ice shelves. Here, we provide observational and model evidence that this process also occurs over an East Antarctic (EA) ice shelf, where meltwater-induced firn air depletion is found in the grounding zone. Unlike the AP, where foehn events originate from episodic interaction of the circumpolar westerlies with the topography, in coastal EA high temperatures are caused by persistent katabatic winds originating from the ice sheet's interior. Katabatic winds warm and mix the air as it flows downward and cause widespread snow erosion, explaining >3 K higher near-surface temperatures in summer and surface melt doubling in the grounding zone compared to its surroundings. Additionally, these winds expose blue ice and firn with lower surface albedo, further enhancing melt. The in-situ observation of supraglacial flow and englacial storage of meltwater suggests that ice shelf grounding zones in EA, like their AP counterparts, are vulnerable to hydrofracturing. Dataset Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(29.800000,29.800000,-71.200000,-71.200000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Roi_Baudoin_ice_shelf SAT Satellite remote sensing |
spellingShingle |
Roi_Baudoin_ice_shelf SAT Satellite remote sensing Lenaerts, Jan T M Lhermitte, Stef Drews, Reinhard Ligtenberg, Stefan R M Berger, Sophie Helm, Veit Smeets, Paul van den Broeke, Michiel R van de Berg, Willem Jan van Meijgaard, Erik Eijkelboom, Mark Eisen, Olaf Pattyn, Frank TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
topic_facet |
Roi_Baudoin_ice_shelf SAT Satellite remote sensing |
description |
Surface melt and subsequent firn air depletion can ultimately lead to disintegration of Antarctic ice shelves causing grounded glaciers to accelerate and sea level to rise. In the Antarctic Peninsula (AP), foehn winds enhance melting near the grounding line, which in the recent past has led to the disintegration of the most northerly ice shelves. Here, we provide observational and model evidence that this process also occurs over an East Antarctic (EA) ice shelf, where meltwater-induced firn air depletion is found in the grounding zone. Unlike the AP, where foehn events originate from episodic interaction of the circumpolar westerlies with the topography, in coastal EA high temperatures are caused by persistent katabatic winds originating from the ice sheet's interior. Katabatic winds warm and mix the air as it flows downward and cause widespread snow erosion, explaining >3 K higher near-surface temperatures in summer and surface melt doubling in the grounding zone compared to its surroundings. Additionally, these winds expose blue ice and firn with lower surface albedo, further enhancing melt. The in-situ observation of supraglacial flow and englacial storage of meltwater suggests that ice shelf grounding zones in EA, like their AP counterparts, are vulnerable to hydrofracturing. |
format |
Dataset |
author |
Lenaerts, Jan T M Lhermitte, Stef Drews, Reinhard Ligtenberg, Stefan R M Berger, Sophie Helm, Veit Smeets, Paul van den Broeke, Michiel R van de Berg, Willem Jan van Meijgaard, Erik Eijkelboom, Mark Eisen, Olaf Pattyn, Frank |
author_facet |
Lenaerts, Jan T M Lhermitte, Stef Drews, Reinhard Ligtenberg, Stefan R M Berger, Sophie Helm, Veit Smeets, Paul van den Broeke, Michiel R van de Berg, Willem Jan van Meijgaard, Erik Eijkelboom, Mark Eisen, Olaf Pattyn, Frank |
author_sort |
Lenaerts, Jan T M |
title |
TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
title_short |
TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
title_full |
TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
title_fullStr |
TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
title_full_unstemmed |
TanDEM-X elevation model of Roi Baudoin ice shelf, link to GeoTIFF |
title_sort |
tandem-x elevation model of roi baudoin ice shelf, link to geotiff |
publisher |
PANGAEA |
publishDate |
2016 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.868109 https://doi.org/10.1594/PANGAEA.868109 |
op_coverage |
LATITUDE: -71.200000 * LONGITUDE: 29.800000 |
long_lat |
ENVELOPE(29.800000,29.800000,-71.200000,-71.200000) |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves |
op_source |
Supplement to: Lenaerts, Jan T M; Lhermitte, Stef; Drews, Reinhard; Ligtenberg, Stefan R M; Berger, Sophie; Helm, Veit; Smeets, Paul; van den Broeke, Michiel R; van de Berg, Willem Jan; van Meijgaard, Erik; Eijkelboom, Mark; Eisen, Olaf; Pattyn, Frank (2016): Meltwater produced by wind-albedo interaction stored in an East Antarctic ice shelf. Nature Climate Change, https://doi.org/10.1038/nclimate3180 |
op_relation |
Overview image of the TDX Mosaic BIS 2013. https://hs.pangaea.de/Maps/bis/TDX_Mosaic_BIS_2013_overview.png https://doi.pangaea.de/10.1594/PANGAEA.868109 https://doi.org/10.1594/PANGAEA.868109 |
op_rights |
UNKNOWN: Licensing unknown: Please contact principal investigator/authors to gain access and request licensing terms Access constraints: access rights needed info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.86810910.1038/nclimate3180 |
_version_ |
1810492278664331264 |