Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum
<jats:title>Abstract</jats:title><jats:p>Knowledge of the past behavior of the outlet glaciers of Southeast (SE) Greenland is necessary to understand and model spatial differences in the response of the Greenland Ice Sheet (GIS) to climatic changes. Here we use bathymetric data to...
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American Geophysical Union (AGU)
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Online Access: | https://www.repository.cam.ac.uk/handle/1810/290940 https://doi.org/10.17863/CAM.38119 |
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ftunivcam:oai:www.repository.cam.ac.uk:1810/290940 2024-01-14T10:07:01+01:00 Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum Batchelor, CL Dowdeswell, JA Rignot, E Millan, R 2019 application/pdf https://www.repository.cam.ac.uk/handle/1810/290940 https://doi.org/10.17863/CAM.38119 eng eng American Geophysical Union (AGU) http://dx.doi.org/10.1029/2019gl082556 Geophysical Research Letters https://www.repository.cam.ac.uk/handle/1810/290940 doi:10.17863/CAM.38119 All rights reserved Southeast Greenland bathymetry moraines Article 2019 ftunivcam https://doi.org/10.17863/CAM.38119 2023-12-21T23:29:20Z <jats:title>Abstract</jats:title><jats:p>Knowledge of the past behavior of the outlet glaciers of Southeast (SE) Greenland is necessary to understand and model spatial differences in the response of the Greenland Ice Sheet (GIS) to climatic changes. Here we use bathymetric data to map the distribution of more than 50 major moraines in SE Greenland fjords. Inner‐fjord moraines are widespread along the SE Greenland margin, occurring in 65% of the surveyed fjords. We identify, for the first time, nine midfjord moraines that span the approximately 150‐km‐long eastern margin of the Julianehåb Ice Cap. In contrast, midfjord moraines are generally absent from the deeper and wider fjords of the SE GIS. The variable distribution of midfjord moraines along the SE Greenland margin reveals contrasting behavior of the SE GIS and the eastern Julianehåb Ice Cap during the last deglaciation, which probably reflects differences in fjord geometry and exposure to ocean heat.</jats:p> Article in Journal/Newspaper glacier Greenland Ice cap Ice Sheet Julianehåb Apollo - University of Cambridge Repository Greenland |
institution |
Open Polar |
collection |
Apollo - University of Cambridge Repository |
op_collection_id |
ftunivcam |
language |
English |
topic |
Southeast Greenland bathymetry moraines |
spellingShingle |
Southeast Greenland bathymetry moraines Batchelor, CL Dowdeswell, JA Rignot, E Millan, R Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
topic_facet |
Southeast Greenland bathymetry moraines |
description |
<jats:title>Abstract</jats:title><jats:p>Knowledge of the past behavior of the outlet glaciers of Southeast (SE) Greenland is necessary to understand and model spatial differences in the response of the Greenland Ice Sheet (GIS) to climatic changes. Here we use bathymetric data to map the distribution of more than 50 major moraines in SE Greenland fjords. Inner‐fjord moraines are widespread along the SE Greenland margin, occurring in 65% of the surveyed fjords. We identify, for the first time, nine midfjord moraines that span the approximately 150‐km‐long eastern margin of the Julianehåb Ice Cap. In contrast, midfjord moraines are generally absent from the deeper and wider fjords of the SE GIS. The variable distribution of midfjord moraines along the SE Greenland margin reveals contrasting behavior of the SE GIS and the eastern Julianehåb Ice Cap during the last deglaciation, which probably reflects differences in fjord geometry and exposure to ocean heat.</jats:p> |
format |
Article in Journal/Newspaper |
author |
Batchelor, CL Dowdeswell, JA Rignot, E Millan, R |
author_facet |
Batchelor, CL Dowdeswell, JA Rignot, E Millan, R |
author_sort |
Batchelor, CL |
title |
Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
title_short |
Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
title_full |
Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
title_fullStr |
Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
title_full_unstemmed |
Submarine Moraines in Southeast Greenland Fjords Reveal Contrasting Outlet-Glacier Behavior since the Last Glacial Maximum |
title_sort |
submarine moraines in southeast greenland fjords reveal contrasting outlet-glacier behavior since the last glacial maximum |
publisher |
American Geophysical Union (AGU) |
publishDate |
2019 |
url |
https://www.repository.cam.ac.uk/handle/1810/290940 https://doi.org/10.17863/CAM.38119 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice cap Ice Sheet Julianehåb |
genre_facet |
glacier Greenland Ice cap Ice Sheet Julianehåb |
op_relation |
https://www.repository.cam.ac.uk/handle/1810/290940 doi:10.17863/CAM.38119 |
op_rights |
All rights reserved |
op_doi |
https://doi.org/10.17863/CAM.38119 |
_version_ |
1788061427198590976 |