BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation
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,...
Published in: | Geophysical Research Letters |
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2017
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Online Access: | https://hdl.handle.net/1983/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://research-information.bris.ac.uk/en/publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://doi.org/10.1002/2017GL074954 https://research-information.bris.ac.uk/ws/files/145998323/Morlighem_et_al_2017_Geophysical_Research_Letters.pdf http://www.scopus.com/inward/record.url?scp=85035102064&partnerID=8YFLogxK |
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ftubristolcris:oai:research-information.bris.ac.uk:publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 2024-05-19T07:40:53+00:00 BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation Morlighem, Mathieu Williams, Chris Rignot, E An, Lu Arndt, Jan Erik Bamber, Jonathan Catania, Ginny Chauché, Nolwenn Dowdeswell, Julian Dorschel, Boris Fenty, Ian Hogan, Kelly Howat, Ian Hubbard, A Jakobsson, Mattias Jordan, Tom Kjeldsen, Kristian K. Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice Ó Cofaigh, CS Palmer, S Rysgaard, Soren Seroussi, Hélène Siegert, Martin Slabon, P Straneo, F van den Broeke, Michiel R. Weinrebe,, W Wood, Michael Zinglersen, Karl 2017-11-16 application/pdf https://hdl.handle.net/1983/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://research-information.bris.ac.uk/en/publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://doi.org/10.1002/2017GL074954 https://research-information.bris.ac.uk/ws/files/145998323/Morlighem_et_al_2017_Geophysical_Research_Letters.pdf http://www.scopus.com/inward/record.url?scp=85035102064&partnerID=8YFLogxK eng eng https://research-information.bris.ac.uk/en/publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 info:eu-repo/semantics/openAccess Morlighem , M , Williams , C , Rignot , E , An , L , Arndt , J E , Bamber , J , Catania , G , Chauché , N , Dowdeswell , J , Dorschel , B , Fenty , I , Hogan , K , Howat , I , Hubbard , A , Jakobsson , M , Jordan , T , Kjeldsen , K K , Millan , R , Mayer , L , Mouginot , J , Noël , B , Ó Cofaigh , CS , Palmer , S , Rysgaard , S , Seroussi , H , Siegert , M , Slabon , P , Straneo , F , van den Broeke , M R , Weinrebe, W , Wood , M & Zinglersen , K 2017 , ' BedMachine v3 : Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation ' , Geophysical Research Letters , vol. 44 , no. 21 , pp. 11051-11061 . https://doi.org/10.1002/2017GL074954 Greenland Bathymetry Mass conservation Multibeam echo sounding Radar echo sounding Glaciology article 2017 ftubristolcris https://doi.org/10.1002/2017GL074954 2024-04-30T23:47:03Z 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 (MC) 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 datasets, particularly in the marine-terminating sectors of northwest and southeast Greenland. Our map reveals 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 Bristol: Bristol Research Geophysical Research Letters 44 21 |
institution |
Open Polar |
collection |
University of Bristol: Bristol Research |
op_collection_id |
ftubristolcris |
language |
English |
topic |
Greenland Bathymetry Mass conservation Multibeam echo sounding Radar echo sounding Glaciology |
spellingShingle |
Greenland Bathymetry Mass conservation Multibeam echo sounding Radar echo sounding Glaciology Morlighem, Mathieu Williams, Chris Rignot, E An, Lu Arndt, Jan Erik Bamber, Jonathan Catania, Ginny Chauché, Nolwenn Dowdeswell, Julian Dorschel, Boris Fenty, Ian Hogan, Kelly Howat, Ian Hubbard, A Jakobsson, Mattias Jordan, Tom Kjeldsen, Kristian K. Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice Ó Cofaigh, CS Palmer, S Rysgaard, Soren Seroussi, Hélène Siegert, Martin Slabon, P Straneo, F van den Broeke, Michiel R. Weinrebe,, W Wood, Michael Zinglersen, Karl BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
topic_facet |
Greenland Bathymetry Mass conservation Multibeam echo sounding Radar echo sounding Glaciology |
description |
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 (MC) 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 datasets, particularly in the marine-terminating sectors of northwest and southeast Greenland. Our map reveals 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, Mathieu Williams, Chris Rignot, E An, Lu Arndt, Jan Erik Bamber, Jonathan Catania, Ginny Chauché, Nolwenn Dowdeswell, Julian Dorschel, Boris Fenty, Ian Hogan, Kelly Howat, Ian Hubbard, A Jakobsson, Mattias Jordan, Tom Kjeldsen, Kristian K. Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice Ó Cofaigh, CS Palmer, S Rysgaard, Soren Seroussi, Hélène Siegert, Martin Slabon, P Straneo, F van den Broeke, Michiel R. Weinrebe,, W Wood, Michael Zinglersen, Karl |
author_facet |
Morlighem, Mathieu Williams, Chris Rignot, E An, Lu Arndt, Jan Erik Bamber, Jonathan Catania, Ginny Chauché, Nolwenn Dowdeswell, Julian Dorschel, Boris Fenty, Ian Hogan, Kelly Howat, Ian Hubbard, A Jakobsson, Mattias Jordan, Tom Kjeldsen, Kristian K. Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice Ó Cofaigh, CS Palmer, S Rysgaard, Soren Seroussi, Hélène Siegert, Martin Slabon, P Straneo, F van den Broeke, Michiel R. Weinrebe,, W Wood, Michael Zinglersen, Karl |
author_sort |
Morlighem, Mathieu |
title |
BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
title_short |
BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
title_full |
BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
title_fullStr |
BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
title_full_unstemmed |
BedMachine v3:Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
title_sort |
bedmachine v3:complete bed topography and ocean bathymetry mapping of greenland from multi-beam echo sounding combined with mass conservation |
publishDate |
2017 |
url |
https://hdl.handle.net/1983/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://research-information.bris.ac.uk/en/publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 https://doi.org/10.1002/2017GL074954 https://research-information.bris.ac.uk/ws/files/145998323/Morlighem_et_al_2017_Geophysical_Research_Letters.pdf http://www.scopus.com/inward/record.url?scp=85035102064&partnerID=8YFLogxK |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_source |
Morlighem , M , Williams , C , Rignot , E , An , L , Arndt , J E , Bamber , J , Catania , G , Chauché , N , Dowdeswell , J , Dorschel , B , Fenty , I , Hogan , K , Howat , I , Hubbard , A , Jakobsson , M , Jordan , T , Kjeldsen , K K , Millan , R , Mayer , L , Mouginot , J , Noël , B , Ó Cofaigh , CS , Palmer , S , Rysgaard , S , Seroussi , H , Siegert , M , Slabon , P , Straneo , F , van den Broeke , M R , Weinrebe, W , Wood , M & Zinglersen , K 2017 , ' BedMachine v3 : Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation ' , Geophysical Research Letters , vol. 44 , no. 21 , pp. 11051-11061 . https://doi.org/10.1002/2017GL074954 |
op_relation |
https://research-information.bris.ac.uk/en/publications/b495dcc6-36b0-4b2e-aeb4-e78eaab906f8 |
op_rights |
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_ |
1799480459423383552 |