BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation
Morlighem, M., Williams, C.N., Rignot, E., An, L., Arndt, J.E., Bamber, J.L. . Zinglersen, K.B. (2017). BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophysical Research Letters , 44(21), 11,051-11,061...
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American Geophysical Union (AGU)
2017
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Online Access: | https://hdl.handle.net/10037/13744 https://doi.org/10.1002/2017GL074954 |
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ftunivtroemsoe:oai:munin.uit.no:10037/13744 2023-05-15T16:23:44+02:00 BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation Morlighem, Mathieu Williams, Chris N. Rignot, Eric J.M. An, Lu Arndt, Jan Erik Bamber, Jonathan L. Catania, Ginny A. Chauché, Nolwenn Dowdeswell, Julian A. Dorschel, Boris Fenty, Ian Hogan, Kelly A. Howat, Ian M. Hubbard, Alun Lloyd Jakobsson, Martin Jordan, Thomas M. Kjeldsen, Kristian Kjellerup Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice P.Y. O'Cofaigh, Colm Palmer, Steven Rysgaard, Søren Seroussi, Hélène Siegert, Martin J. Slabon, Patricia Straneo, Fiamma van den Broeke, Michiel R. Weinrebe, Wilhelm Reimer Wood, Michael Zinglersen, Karl Brix 2017-09-18 https://hdl.handle.net/10037/13744 https://doi.org/10.1002/2017GL074954 eng eng American Geophysical Union (AGU) Geophysical Research Letters Norges forskningsråd: 223259 Morlighem, M., Williams, C.N., Rignot, E., An, L., Arndt, J.E., Bamber, J.L. . Zinglersen, K.B. (2017). BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophysical Research Letters, 44(21), 11,051-11,061. https://doi.org/10.1002/2017GL074954 FRIDAID 1499091 doi:10.1002/2017GL074954 0094-8276 1944-8007 https://hdl.handle.net/10037/13744 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Greenland bathymetry mass conservation multibeam echo sounding radar echo sounding glaciology Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1002/2017GL074954 2021-06-25T17:55:46Z Morlighem, M., Williams, C.N., Rignot, E., An, L., Arndt, J.E., Bamber, J.L. . Zinglersen, K.B. (2017). BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophysical Research Letters , 44(21), 11,051-11,061. https://doi.org/10.1002/2017GL074954. To view the published open abstract, go to https://doi.org/10.1002/2017GL074954 . 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 Tromsø: Munin Open Research Archive Greenland Geophysical Research Letters 44 21 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Greenland bathymetry mass conservation multibeam echo sounding radar echo sounding glaciology |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Greenland bathymetry mass conservation multibeam echo sounding radar echo sounding glaciology Morlighem, Mathieu Williams, Chris N. Rignot, Eric J.M. An, Lu Arndt, Jan Erik Bamber, Jonathan L. Catania, Ginny A. Chauché, Nolwenn Dowdeswell, Julian A. Dorschel, Boris Fenty, Ian Hogan, Kelly A. Howat, Ian M. Hubbard, Alun Lloyd Jakobsson, Martin Jordan, Thomas M. Kjeldsen, Kristian Kjellerup Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice P.Y. O'Cofaigh, Colm Palmer, Steven Rysgaard, Søren Seroussi, Hélène Siegert, Martin J. Slabon, Patricia Straneo, Fiamma van den Broeke, Michiel R. Weinrebe, Wilhelm Reimer Wood, Michael Zinglersen, Karl Brix BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Greenland bathymetry mass conservation multibeam echo sounding radar echo sounding glaciology |
description |
Morlighem, M., Williams, C.N., Rignot, E., An, L., Arndt, J.E., Bamber, J.L. . Zinglersen, K.B. (2017). BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophysical Research Letters , 44(21), 11,051-11,061. https://doi.org/10.1002/2017GL074954. To view the published open abstract, go to https://doi.org/10.1002/2017GL074954 . 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, Mathieu Williams, Chris N. Rignot, Eric J.M. An, Lu Arndt, Jan Erik Bamber, Jonathan L. Catania, Ginny A. Chauché, Nolwenn Dowdeswell, Julian A. Dorschel, Boris Fenty, Ian Hogan, Kelly A. Howat, Ian M. Hubbard, Alun Lloyd Jakobsson, Martin Jordan, Thomas M. Kjeldsen, Kristian Kjellerup Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice P.Y. O'Cofaigh, Colm Palmer, Steven Rysgaard, Søren Seroussi, Hélène Siegert, Martin J. Slabon, Patricia Straneo, Fiamma van den Broeke, Michiel R. Weinrebe, Wilhelm Reimer Wood, Michael Zinglersen, Karl Brix |
author_facet |
Morlighem, Mathieu Williams, Chris N. Rignot, Eric J.M. An, Lu Arndt, Jan Erik Bamber, Jonathan L. Catania, Ginny A. Chauché, Nolwenn Dowdeswell, Julian A. Dorschel, Boris Fenty, Ian Hogan, Kelly A. Howat, Ian M. Hubbard, Alun Lloyd Jakobsson, Martin Jordan, Thomas M. Kjeldsen, Kristian Kjellerup Millan, Romain Mayer, Larry Mouginot, Jérémie Noël, Brice P.Y. O'Cofaigh, Colm Palmer, Steven Rysgaard, Søren Seroussi, Hélène Siegert, Martin J. Slabon, Patricia Straneo, Fiamma van den Broeke, Michiel R. Weinrebe, Wilhelm Reimer Wood, Michael Zinglersen, Karl Brix |
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 |
publisher |
American Geophysical Union (AGU) |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/13744 https://doi.org/10.1002/2017GL074954 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet |
genre_facet |
Greenland Ice Sheet |
op_relation |
Geophysical Research Letters Norges forskningsråd: 223259 Morlighem, M., Williams, C.N., Rignot, E., An, L., Arndt, J.E., Bamber, J.L. . Zinglersen, K.B. (2017). BedMachine v3: Complete bed topography and ocean bathymetry mapping of Greenland from multi-beam echo sounding combined with mass conservation. Geophysical Research Letters, 44(21), 11,051-11,061. https://doi.org/10.1002/2017GL074954 FRIDAID 1499091 doi:10.1002/2017GL074954 0094-8276 1944-8007 https://hdl.handle.net/10037/13744 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2017GL074954 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
21 |
_version_ |
1766011980537135104 |