Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data
Southeast Greenland has been a major participant in the ice sheet mass loss over the last several decades. Interpreting the evolution of glacier fronts requires information about their depth below sea level and ocean thermal forcing, which are incompletely known in the region. Here, we combine airbo...
Published in: | Geophysical Research Letters |
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Language: | English |
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AGU (American Geophysical Union)
2019
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Online Access: | https://oceanrep.geomar.de/id/eprint/48308/ https://oceanrep.geomar.de/id/eprint/48308/1/An_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL083953 |
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ftoceanrep:oai:oceanrep.geomar.de:48308 2023-05-15T16:20:55+02:00 Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data An, Lu Rignot, Eric Chauche, Nolwenn Holland, David M. Holland, Denise Jakobsson, Martin Kane, Emily Wood, Michael Klaucke, Ingo Morlighem, Mathieu Velicogna, Isabella Weinrebe, Wilhelm Willis, Josh K. 2019-10-28 text https://oceanrep.geomar.de/id/eprint/48308/ https://oceanrep.geomar.de/id/eprint/48308/1/An_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL083953 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/48308/1/An_et_al-2019-Geophysical_Research_Letters.pdf An, L. , Rignot, E. , Chauche, N. , Holland, D. M. , Holland, D., Jakobsson, M. , Kane, E., Wood, M. , Klaucke, I. , Morlighem, M. , Velicogna, I., Weinrebe, W. and Willis, J. K. (2019) Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data. Open Access Geophysical Research Letters, 46 (20). pp. 11197-11205. DOI 10.1029/2019GL083953 <https://doi.org/10.1029/2019GL083953>. doi:10.1029/2019GL083953 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2019 ftoceanrep https://doi.org/10.1029/2019GL083953 2023-04-07T15:48:11Z Southeast Greenland has been a major participant in the ice sheet mass loss over the last several decades. Interpreting the evolution of glacier fronts requires information about their depth below sea level and ocean thermal forcing, which are incompletely known in the region. Here, we combine airborne gravity and multibeam echo sounding data from the National Aeronautics and Space Administration's Oceans Melting Greenland (OMG) mission with ocean probe and fishing boat depth data to reconstruct the bathymetry extending from the glacier margins to the edges of the continental shelf. We perform a three‐dimensional inversion of the gravity data over water and merge the solution with a mass conservation reconstruction of bed topography over land. In contrast with other parts of Greenland, we find few deep troughs connecting the glaciers to the sources of warm Atlantic Water, amidst a relatively uniform, shallow (350 m) continental shelf. The deep channels include the Kangerlugssuaq, Sermilik, Gyldenløve, and Tingmiarmiut Troughs. Article in Journal/Newspaper glacier Greenland Ice Sheet Sermilik OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Greenland Geophysical Research Letters 46 20 11197 11205 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Southeast Greenland has been a major participant in the ice sheet mass loss over the last several decades. Interpreting the evolution of glacier fronts requires information about their depth below sea level and ocean thermal forcing, which are incompletely known in the region. Here, we combine airborne gravity and multibeam echo sounding data from the National Aeronautics and Space Administration's Oceans Melting Greenland (OMG) mission with ocean probe and fishing boat depth data to reconstruct the bathymetry extending from the glacier margins to the edges of the continental shelf. We perform a three‐dimensional inversion of the gravity data over water and merge the solution with a mass conservation reconstruction of bed topography over land. In contrast with other parts of Greenland, we find few deep troughs connecting the glaciers to the sources of warm Atlantic Water, amidst a relatively uniform, shallow (350 m) continental shelf. The deep channels include the Kangerlugssuaq, Sermilik, Gyldenløve, and Tingmiarmiut Troughs. |
format |
Article in Journal/Newspaper |
author |
An, Lu Rignot, Eric Chauche, Nolwenn Holland, David M. Holland, Denise Jakobsson, Martin Kane, Emily Wood, Michael Klaucke, Ingo Morlighem, Mathieu Velicogna, Isabella Weinrebe, Wilhelm Willis, Josh K. |
spellingShingle |
An, Lu Rignot, Eric Chauche, Nolwenn Holland, David M. Holland, Denise Jakobsson, Martin Kane, Emily Wood, Michael Klaucke, Ingo Morlighem, Mathieu Velicogna, Isabella Weinrebe, Wilhelm Willis, Josh K. Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
author_facet |
An, Lu Rignot, Eric Chauche, Nolwenn Holland, David M. Holland, Denise Jakobsson, Martin Kane, Emily Wood, Michael Klaucke, Ingo Morlighem, Mathieu Velicogna, Isabella Weinrebe, Wilhelm Willis, Josh K. |
author_sort |
An, Lu |
title |
Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
title_short |
Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
title_full |
Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
title_fullStr |
Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
title_full_unstemmed |
Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data |
title_sort |
bathymetry of southeast greenland from oceans melting greenland (omg) data |
publisher |
AGU (American Geophysical Union) |
publishDate |
2019 |
url |
https://oceanrep.geomar.de/id/eprint/48308/ https://oceanrep.geomar.de/id/eprint/48308/1/An_et_al-2019-Geophysical_Research_Letters.pdf https://doi.org/10.1029/2019GL083953 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet Sermilik |
genre_facet |
glacier Greenland Ice Sheet Sermilik |
op_relation |
https://oceanrep.geomar.de/id/eprint/48308/1/An_et_al-2019-Geophysical_Research_Letters.pdf An, L. , Rignot, E. , Chauche, N. , Holland, D. M. , Holland, D., Jakobsson, M. , Kane, E., Wood, M. , Klaucke, I. , Morlighem, M. , Velicogna, I., Weinrebe, W. and Willis, J. K. (2019) Bathymetry of Southeast Greenland From Oceans Melting Greenland (OMG) Data. Open Access Geophysical Research Letters, 46 (20). pp. 11197-11205. DOI 10.1029/2019GL083953 <https://doi.org/10.1029/2019GL083953>. doi:10.1029/2019GL083953 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2019GL083953 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
20 |
container_start_page |
11197 |
op_container_end_page |
11205 |
_version_ |
1766008943495086080 |