BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam 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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Format: | Article in Journal/Newspaper |
Language: | English |
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American Geophysical Union
2017
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Online Access: | http://nora.nerc.ac.uk/id/eprint/518979/ https://nora.nerc.ac.uk/id/eprint/518979/1/Morlighem_et_al-2017-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL074954 |
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ftnerc:oai:nora.nerc.ac.uk:518979 2023-05-15T16:23:40+02:00 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, Kelly Howat, I. Hubbard, A. Jakobsson, M. Jordan, T. M. Kjeldsen, K. K. Millan, R. Mayer, L. Mouginot, J. Noël, B. P. Y. 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 text http://nora.nerc.ac.uk/id/eprint/518979/ https://nora.nerc.ac.uk/id/eprint/518979/1/Morlighem_et_al-2017-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL074954 en eng American Geophysical Union https://nora.nerc.ac.uk/id/eprint/518979/1/Morlighem_et_al-2017-Geophysical_Research_Letters.pdf 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, Kelly orcid:0000-0002-1256-8010 Howat, I.; Hubbard, A.; Jakobsson, M.; Jordan, T. M.; Kjeldsen, K. K.; Millan, R.; Mayer, L.; Mouginot, J.; Noël, B. P. Y.; 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 BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. Geophysical Research Letters, 44 (21). 11,051-11,061. https://doi.org/10.1002/2017GL074954 <https://doi.org/10.1002/2017GL074954> cc_by_4 CC-BY Publication - Article PeerReviewed 2017 ftnerc https://doi.org/10.1002/2017GL074954 2023-02-04T19:45:59Z 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 Natural Environment Research Council: NERC Open Research Archive Greenland Geophysical Research Letters 44 21 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
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 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, Kelly Howat, I. Hubbard, A. Jakobsson, M. Jordan, T. M. Kjeldsen, K. K. Millan, R. Mayer, L. Mouginot, J. Noël, B. P. Y. 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. |
spellingShingle |
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, Kelly Howat, I. Hubbard, A. Jakobsson, M. Jordan, T. M. Kjeldsen, K. K. Millan, R. Mayer, L. Mouginot, J. Noël, B. P. Y. 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 |
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, Kelly Howat, I. Hubbard, A. Jakobsson, M. Jordan, T. M. Kjeldsen, K. K. Millan, R. Mayer, L. Mouginot, J. Noël, B. P. Y. 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 |
American Geophysical Union |
publishDate |
2017 |
url |
http://nora.nerc.ac.uk/id/eprint/518979/ https://nora.nerc.ac.uk/id/eprint/518979/1/Morlighem_et_al-2017-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2017GL074954 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
https://nora.nerc.ac.uk/id/eprint/518979/1/Morlighem_et_al-2017-Geophysical_Research_Letters.pdf 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, Kelly orcid:0000-0002-1256-8010 Howat, I.; Hubbard, A.; Jakobsson, M.; Jordan, T. M.; Kjeldsen, K. K.; Millan, R.; Mayer, L.; Mouginot, J.; Noël, B. P. Y.; 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 BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation. Geophysical Research Letters, 44 (21). 11,051-11,061. https://doi.org/10.1002/2017GL074954 <https://doi.org/10.1002/2017GL074954> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/2017GL074954 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
21 |
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1766011920875257856 |