BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation.
peer reviewed Greenland's bed topography is a primary control on ice flow, grounding line migration, calving dynamics, and subglacial drainage. Moreover, fjord bathymetry regulates the penetration of warm Atlantic water (AW) that rapidly melts and undercuts Greenland's marine-terminating g...
Published in: | Geophysical Research Letters |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Blackwell Publishing Ltd
2017
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Online Access: | https://orbi.uliege.be/handle/2268/301905 https://orbi.uliege.be/bitstream/2268/301905/1/Morlighem_GRL_2017.pdf https://doi.org/10.1002/2017GL074954 |
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ftorbi:oai:orbi.ulg.ac.be:2268/301905 2024-04-21T08:02:49+00:00 BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. Morlighem, M Williams, C N Rignot, E An, L Arndt, J E Bamber, J L Catania, G Chauché, N Dowdeswell, J A Dorschel, B Fenty, I Hogan, K Howat, I Hubbard, A Jakobsson, M Jordan, T M Kjeldsen, K K Millan, R Mayer, L Mouginot, J Noël, Brice O'Cofaigh, C Palmer, S Rysgaard, S Seroussi, H Siegert, M J Slabon, P Straneo, F van den Broeke, M R Weinrebe, W Wood, M Zinglersen, K B 2017-11-16 https://orbi.uliege.be/handle/2268/301905 https://orbi.uliege.be/bitstream/2268/301905/1/Morlighem_GRL_2017.pdf https://doi.org/10.1002/2017GL074954 en eng Blackwell Publishing Ltd https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GL074954 urn:issn:0094-8276 urn:issn:1944-8007 https://orbi.uliege.be/handle/2268/301905 info:hdl:2268/301905 https://orbi.uliege.be/bitstream/2268/301905/1/Morlighem_GRL_2017.pdf doi:10.1002/2017GL074954 scopus-id:2-s2.0-85035102064 info:pmid:29263561 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Geophysical Research Letters, 44 (21), 11051 - 11061 (2017-11-16) Greenland bathymetry glaciology mass conservation multibeam echo sounding radar echo sounding Multibeams Radar echoes Geophysics Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2017 ftorbi https://doi.org/10.1002/2017GL074954 2024-03-27T14:57:53Z peer reviewed Greenland's bed topography is a primary control on ice flow, grounding line migration, calving dynamics, and subglacial drainage. Moreover, fjord bathymetry regulates the penetration of warm Atlantic water (AW) that rapidly melts and undercuts Greenland's marine-terminating glaciers. Here we present a new compilation of Greenland bed topography that assimilates seafloor bathymetry and ice thickness data through a mass conservation approach. A new 150 m horizontal resolution bed topography/bathymetric map of Greenland is constructed with seamless transitions at the ice/ocean interface, yielding major improvements over previous data sets, particularly in the marine-terminating sectors of northwest and southeast Greenland. Our map reveals that the total sea level potential of the Greenland ice sheet is 7.42 ± 0.05 m, which is 7 cm greater than previous estimates. Furthermore, it explains recent calving front response of numerous outlet glaciers and reveals new pathways by which AW can access glaciers with marine-based basins, thereby highlighting sectors of Greenland that are most vulnerable to future oceanic forcing. Article in Journal/Newspaper Greenland Ice Sheet University of Liège: ORBi (Open Repository and Bibliography) Geophysical Research Letters 44 21 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Greenland bathymetry glaciology mass conservation multibeam echo sounding radar echo sounding Multibeams Radar echoes Geophysics Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Greenland bathymetry glaciology mass conservation multibeam echo sounding radar echo sounding Multibeams Radar echoes Geophysics Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Morlighem, M Williams, C N Rignot, E An, L Arndt, J E Bamber, J L Catania, G Chauché, N Dowdeswell, J A Dorschel, B Fenty, I Hogan, K Howat, I Hubbard, A Jakobsson, M Jordan, T M Kjeldsen, K K Millan, R Mayer, L Mouginot, J Noël, Brice O'Cofaigh, C Palmer, S Rysgaard, S Seroussi, H Siegert, M J Slabon, P Straneo, F van den Broeke, M R Weinrebe, W Wood, M Zinglersen, K B BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
topic_facet |
Greenland bathymetry glaciology mass conservation multibeam echo sounding radar echo sounding Multibeams Radar echoes Geophysics Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed Greenland's bed topography is a primary control on ice flow, grounding line migration, calving dynamics, and subglacial drainage. Moreover, fjord bathymetry regulates the penetration of warm Atlantic water (AW) that rapidly melts and undercuts Greenland's marine-terminating glaciers. Here we present a new compilation of Greenland bed topography that assimilates seafloor bathymetry and ice thickness data through a mass conservation approach. A new 150 m horizontal resolution bed topography/bathymetric map of Greenland is constructed with seamless transitions at the ice/ocean interface, yielding major improvements over previous data sets, particularly in the marine-terminating sectors of northwest and southeast Greenland. Our map reveals that the total sea level potential of the Greenland ice sheet is 7.42 ± 0.05 m, which is 7 cm greater than previous estimates. Furthermore, it explains recent calving front response of numerous outlet glaciers and reveals new pathways by which AW can access glaciers with marine-based basins, thereby highlighting sectors of Greenland that are most vulnerable to future oceanic forcing. |
format |
Article in Journal/Newspaper |
author |
Morlighem, M Williams, C N Rignot, E An, L Arndt, J E Bamber, J L Catania, G Chauché, N Dowdeswell, J A Dorschel, B Fenty, I Hogan, K Howat, I Hubbard, A Jakobsson, M Jordan, T M Kjeldsen, K K Millan, R Mayer, L Mouginot, J Noël, Brice O'Cofaigh, C Palmer, S Rysgaard, S Seroussi, H Siegert, M J Slabon, P Straneo, F van den Broeke, M R Weinrebe, W Wood, M Zinglersen, K B |
author_facet |
Morlighem, M Williams, C N Rignot, E An, L Arndt, J E Bamber, J L Catania, G Chauché, N Dowdeswell, J A Dorschel, B Fenty, I Hogan, K Howat, I Hubbard, A Jakobsson, M Jordan, T M Kjeldsen, K K Millan, R Mayer, L Mouginot, J Noël, Brice O'Cofaigh, C Palmer, S Rysgaard, S Seroussi, H Siegert, M J Slabon, P Straneo, F van den Broeke, M R Weinrebe, W Wood, M Zinglersen, K B |
author_sort |
Morlighem, M |
title |
BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
title_short |
BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
title_full |
BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
title_fullStr |
BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
title_full_unstemmed |
BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. |
title_sort |
bedmachine v3: complete bed topography and ocean bathymetry mapping of greenland from multibeam echo sounding combined with mass conservation. |
publisher |
Blackwell Publishing Ltd |
publishDate |
2017 |
url |
https://orbi.uliege.be/handle/2268/301905 https://orbi.uliege.be/bitstream/2268/301905/1/Morlighem_GRL_2017.pdf https://doi.org/10.1002/2017GL074954 |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Geophysical Research Letters, 44 (21), 11051 - 11061 (2017-11-16) |
op_relation |
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2F2017GL074954 urn:issn:0094-8276 urn:issn:1944-8007 https://orbi.uliege.be/handle/2268/301905 info:hdl:2268/301905 https://orbi.uliege.be/bitstream/2268/301905/1/Morlighem_GRL_2017.pdf doi:10.1002/2017GL074954 scopus-id:2-s2.0-85035102064 info:pmid:29263561 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2017GL074954 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
21 |
_version_ |
1796942899518111744 |