Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ...
Malaspina Glacier, located on the coast of southern Alaska, is the world’s largest piedmont glacier. A narrow ice-cored foreland zone undergoing rapid thermokarst erosion separates the glacier from the relatively warm waters of the Gulf of Alaska. Glacier-wide thinning rates for Malaspina are greate...
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University of Arizona Research Data Repository
2023
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Online Access: | https://dx.doi.org/10.25422/azu.data.17054063.v1 https://arizona.figshare.com/articles/dataset/Data_and_Code_for_Comprehensive_Radar_Mapping_of_Malaspina_Glacier_S_t_Tlein_Alaska_the_World_s_Largest_Piedmont_Glacier_Reveals_Potential_for_Instability_/17054063/1 |
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ftdatacite:10.25422/azu.data.17054063.v1 2023-05-15T16:20:12+02:00 Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... Tober, Brandon Scott Holt, Jack Christoffersen, Michael Truffer, Martin Larsen, Chris Brinkerhoff, Doug Mooneyham, Sydney 2023 https://dx.doi.org/10.25422/azu.data.17054063.v1 https://arizona.figshare.com/articles/dataset/Data_and_Code_for_Comprehensive_Radar_Mapping_of_Malaspina_Glacier_S_t_Tlein_Alaska_the_World_s_Largest_Piedmont_Glacier_Reveals_Potential_for_Instability_/17054063/1 unknown University of Arizona Research Data Repository https://dx.doi.org/10.1029/2022jf006898 https://dx.doi.org/10.25422/azu.data.17054063 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Electrical and electromagnetic methods in geophysics Glaciology Applied geophysics dataset Dataset 2023 ftdatacite https://doi.org/10.25422/azu.data.17054063.v110.1029/2022jf00689810.25422/azu.data.17054063 2023-04-03T12:53:33Z Malaspina Glacier, located on the coast of southern Alaska, is the world’s largest piedmont glacier. A narrow ice-cored foreland zone undergoing rapid thermokarst erosion separates the glacier from the relatively warm waters of the Gulf of Alaska. Glacier-wide thinning rates for Malaspina are greater than 1 m/yr, and previous geophysical investigations indicated that bed elevation exceeds 300 m below sea level in some places. These observations together give rise to the question of glacial stability. To address this question, glacier evolution models are dependent upon detailed observations of Malaspina's subglacial topography. Here, we map over 3,250 line-km of the glacier's bed using airborne radar sounding data collected by NASA's Operation IceBridge. When compared to gridded radar measurements, we find that glaciological models overestimate Malaspina's volume by more than 30%. While we report a mean bed elevation 100 m greater than previous models, we find that Malaspina inhabits a broad basin largely ... Dataset glacier Thermokarst Alaska DataCite Metadata Store (German National Library of Science and Technology) Gulf of Alaska |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Electrical and electromagnetic methods in geophysics Glaciology Applied geophysics |
spellingShingle |
Electrical and electromagnetic methods in geophysics Glaciology Applied geophysics Tober, Brandon Scott Holt, Jack Christoffersen, Michael Truffer, Martin Larsen, Chris Brinkerhoff, Doug Mooneyham, Sydney Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
topic_facet |
Electrical and electromagnetic methods in geophysics Glaciology Applied geophysics |
description |
Malaspina Glacier, located on the coast of southern Alaska, is the world’s largest piedmont glacier. A narrow ice-cored foreland zone undergoing rapid thermokarst erosion separates the glacier from the relatively warm waters of the Gulf of Alaska. Glacier-wide thinning rates for Malaspina are greater than 1 m/yr, and previous geophysical investigations indicated that bed elevation exceeds 300 m below sea level in some places. These observations together give rise to the question of glacial stability. To address this question, glacier evolution models are dependent upon detailed observations of Malaspina's subglacial topography. Here, we map over 3,250 line-km of the glacier's bed using airborne radar sounding data collected by NASA's Operation IceBridge. When compared to gridded radar measurements, we find that glaciological models overestimate Malaspina's volume by more than 30%. While we report a mean bed elevation 100 m greater than previous models, we find that Malaspina inhabits a broad basin largely ... |
format |
Dataset |
author |
Tober, Brandon Scott Holt, Jack Christoffersen, Michael Truffer, Martin Larsen, Chris Brinkerhoff, Doug Mooneyham, Sydney |
author_facet |
Tober, Brandon Scott Holt, Jack Christoffersen, Michael Truffer, Martin Larsen, Chris Brinkerhoff, Doug Mooneyham, Sydney |
author_sort |
Tober, Brandon Scott |
title |
Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
title_short |
Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
title_full |
Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
title_fullStr |
Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
title_full_unstemmed |
Data and Code for "Comprehensive Radar Mapping of Malaspina Glacier (Sít' Tlein), Alaska – the World's Largest Piedmont Glacier – Reveals Potential for Instability" ... |
title_sort |
data and code for "comprehensive radar mapping of malaspina glacier (sít' tlein), alaska – the world's largest piedmont glacier – reveals potential for instability" ... |
publisher |
University of Arizona Research Data Repository |
publishDate |
2023 |
url |
https://dx.doi.org/10.25422/azu.data.17054063.v1 https://arizona.figshare.com/articles/dataset/Data_and_Code_for_Comprehensive_Radar_Mapping_of_Malaspina_Glacier_S_t_Tlein_Alaska_the_World_s_Largest_Piedmont_Glacier_Reveals_Potential_for_Instability_/17054063/1 |
geographic |
Gulf of Alaska |
geographic_facet |
Gulf of Alaska |
genre |
glacier Thermokarst Alaska |
genre_facet |
glacier Thermokarst Alaska |
op_relation |
https://dx.doi.org/10.1029/2022jf006898 https://dx.doi.org/10.25422/azu.data.17054063 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.25422/azu.data.17054063.v110.1029/2022jf00689810.25422/azu.data.17054063 |
_version_ |
1766007906342273024 |