High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data
<jats:title>Abstract</jats:title><jats:p>Geothermal heat flow in the polar regions plays a crucial role in understanding ice-sheet dynamics and predictions of sea level rise. Continental-scale indirect estimates often have a low spatial resolution and yield largest discrepancies in...
Published in: | Communications Earth & Environment |
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ftzbmed:oai:frl.publisso.de:frl:6442416 2023-11-12T04:00:51+01:00 High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data Dziadek, Ricarda Ferraccioli, Fausto Gohl, Karsten 2021 https://repository.publisso.de/resource/frl:6442416 https://doi.org/10.1038/s43247-021-00242-3 eng eng https://repository.publisso.de/resource/frl:6442416 https://doi.org/10.1038/s43247-021-00242-3 https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370686607206441#!, 2(1):162 Cryospheric science Article Geophysics Geomagnetism Zeitschriftenartikel 2021 ftzbmed https://doi.org/10.1038/s43247-021-00242-3 2023-10-22T22:06:50Z <jats:title>Abstract</jats:title><jats:p>Geothermal heat flow in the polar regions plays a crucial role in understanding ice-sheet dynamics and predictions of sea level rise. Continental-scale indirect estimates often have a low spatial resolution and yield largest discrepancies in West Antarctica. Here we analyse geophysical data to estimate geothermal heat flow in the Amundsen Sea Sector of West Antarctica. With Curie depth analysis based on a new magnetic anomaly grid compilation, we reveal variations in lithospheric thermal gradients. We show that the rapidly retreating Thwaites and Pope glaciers in particular are underlain by areas of largely elevated geothermal heat flow, which relates to the tectonic and magmatic history of the West Antarctic Rift System in this region. Our results imply that the behavior of this vulnerable sector of the West Antarctic Ice Sheet is strongly coupled to the dynamics of the underlying lithosphere.</jats:p> Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Thwaites Glacier ENVELOPE(-106.750,-106.750,-75.500,-75.500) Communications Earth & Environment 2 1 |
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Open Polar |
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PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Cryospheric science Article Geophysics Geomagnetism |
spellingShingle |
Cryospheric science Article Geophysics Geomagnetism Dziadek, Ricarda Ferraccioli, Fausto Gohl, Karsten High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
topic_facet |
Cryospheric science Article Geophysics Geomagnetism |
description |
<jats:title>Abstract</jats:title><jats:p>Geothermal heat flow in the polar regions plays a crucial role in understanding ice-sheet dynamics and predictions of sea level rise. Continental-scale indirect estimates often have a low spatial resolution and yield largest discrepancies in West Antarctica. Here we analyse geophysical data to estimate geothermal heat flow in the Amundsen Sea Sector of West Antarctica. With Curie depth analysis based on a new magnetic anomaly grid compilation, we reveal variations in lithospheric thermal gradients. We show that the rapidly retreating Thwaites and Pope glaciers in particular are underlain by areas of largely elevated geothermal heat flow, which relates to the tectonic and magmatic history of the West Antarctic Rift System in this region. Our results imply that the behavior of this vulnerable sector of the West Antarctic Ice Sheet is strongly coupled to the dynamics of the underlying lithosphere.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Dziadek, Ricarda Ferraccioli, Fausto Gohl, Karsten |
author_facet |
Dziadek, Ricarda Ferraccioli, Fausto Gohl, Karsten |
author_sort |
Dziadek, Ricarda |
title |
High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
title_short |
High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
title_full |
High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
title_fullStr |
High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
title_full_unstemmed |
High geothermal heat flow beneath Thwaites Glacier in West Antarctica inferred from aeromagnetic data |
title_sort |
high geothermal heat flow beneath thwaites glacier in west antarctica inferred from aeromagnetic data |
publishDate |
2021 |
url |
https://repository.publisso.de/resource/frl:6442416 https://doi.org/10.1038/s43247-021-00242-3 |
long_lat |
ENVELOPE(-106.750,-106.750,-75.500,-75.500) |
geographic |
Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Thwaites Glacier |
geographic_facet |
Antarctic West Antarctica Amundsen Sea West Antarctic Ice Sheet Thwaites Glacier |
genre |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctica Ice Sheet Thwaites Glacier West Antarctica |
op_source |
http://lobid.org/resources/99370686607206441#!, 2(1):162 |
op_relation |
https://repository.publisso.de/resource/frl:6442416 https://doi.org/10.1038/s43247-021-00242-3 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1038/s43247-021-00242-3 |
container_title |
Communications Earth & Environment |
container_volume |
2 |
container_issue |
1 |
_version_ |
1782328903506853888 |