Greenland and Canadian Arctic ice temperature profiles database
Here, we present a compilation of 95 ice temperature profiles from 85 boreholes from the Greenland ice sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Profiles from only 31 boreholes (36 %) were previously available in open-access data repositories. The remaining 54...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/630756 2023-11-12T04:12:35+01:00 Greenland and Canadian Arctic ice temperature profiles database Løkkegaard, Anja Mankoff, Kenneth D. Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel H. Thomsen, Henrik H. Fisher, David Harper, Joel Aschwanden, Andy Vinther, Bo M. Dahl-Jensen, Dorthe Zekollari, Harry id_orcid:0 000-0002-7443-4034 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Seguinot, Julien id_orcid:0 000-0002-5315-0761 Fausto, Robert S. Colgan, William T. 2023-09-08 application/application/pdf https://hdl.handle.net/20.500.11850/630756 https://doi.org/10.3929/ethz-b-000630756 en eng Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-17-3829-2023 info:eu-repo/grantAgreement/SNF/Projekte MINT/169558 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/153179 http://hdl.handle.net/20.500.11850/630756 doi:10.3929/ethz-b-000630756 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International The Cryosphere, 17 (9) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftethz https://doi.org/20.500.11850/63075610.3929/ethz-b-00063075610.5194/tc-17-3829-2023 2023-10-15T23:50:58Z Here, we present a compilation of 95 ice temperature profiles from 85 boreholes from the Greenland ice sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Profiles from only 31 boreholes (36 %) were previously available in open-access data repositories. The remaining 54 borehole profiles (64 %) are being made digitally available here for the first time. These newly available profiles, which are associated with pre-2010 boreholes, have been submitted by community members or digitized from published graphics and/or data tables. All 95 profiles are now made available in both absolute (meters) and normalized (0 to 1 ice thickness) depth scales and are accompanied by extensive metadata. These metadata include a transparent description of data provenance. The ice temperature profiles span 70 years, with the earliest profile being from 1950 at Camp VI, West Greenland. To highlight the value of this database in evaluating ice flow simulations, we compare the ice temperature profiles from the Greenland ice sheet with an ice flow simulation by the Parallel Ice Sheet Model (PISM). We find a cold bias in modeled near-surface ice temperatures within the ablation area, a warm bias in modeled basal ice temperatures at inland cold-bedded sites, and an apparent underestimation of deformational heating in high-strain settings. These biases provide process level insight on simulated ice temperatures. ISSN:1994-0416 ISSN:1994-0424 Article in Journal/Newspaper Arctic Greenland Ice Sheet The Cryosphere ETH Zürich Research Collection Arctic Greenland |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
Here, we present a compilation of 95 ice temperature profiles from 85 boreholes from the Greenland ice sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Profiles from only 31 boreholes (36 %) were previously available in open-access data repositories. The remaining 54 borehole profiles (64 %) are being made digitally available here for the first time. These newly available profiles, which are associated with pre-2010 boreholes, have been submitted by community members or digitized from published graphics and/or data tables. All 95 profiles are now made available in both absolute (meters) and normalized (0 to 1 ice thickness) depth scales and are accompanied by extensive metadata. These metadata include a transparent description of data provenance. The ice temperature profiles span 70 years, with the earliest profile being from 1950 at Camp VI, West Greenland. To highlight the value of this database in evaluating ice flow simulations, we compare the ice temperature profiles from the Greenland ice sheet with an ice flow simulation by the Parallel Ice Sheet Model (PISM). We find a cold bias in modeled near-surface ice temperatures within the ablation area, a warm bias in modeled basal ice temperatures at inland cold-bedded sites, and an apparent underestimation of deformational heating in high-strain settings. These biases provide process level insight on simulated ice temperatures. ISSN:1994-0416 ISSN:1994-0424 |
format |
Article in Journal/Newspaper |
author |
Løkkegaard, Anja Mankoff, Kenneth D. Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel H. Thomsen, Henrik H. Fisher, David Harper, Joel Aschwanden, Andy Vinther, Bo M. Dahl-Jensen, Dorthe Zekollari, Harry id_orcid:0 000-0002-7443-4034 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Seguinot, Julien id_orcid:0 000-0002-5315-0761 Fausto, Robert S. Colgan, William T. |
spellingShingle |
Løkkegaard, Anja Mankoff, Kenneth D. Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel H. Thomsen, Henrik H. Fisher, David Harper, Joel Aschwanden, Andy Vinther, Bo M. Dahl-Jensen, Dorthe Zekollari, Harry id_orcid:0 000-0002-7443-4034 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Seguinot, Julien id_orcid:0 000-0002-5315-0761 Fausto, Robert S. Colgan, William T. Greenland and Canadian Arctic ice temperature profiles database |
author_facet |
Løkkegaard, Anja Mankoff, Kenneth D. Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel H. Thomsen, Henrik H. Fisher, David Harper, Joel Aschwanden, Andy Vinther, Bo M. Dahl-Jensen, Dorthe Zekollari, Harry id_orcid:0 000-0002-7443-4034 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Seguinot, Julien id_orcid:0 000-0002-5315-0761 Fausto, Robert S. Colgan, William T. |
author_sort |
Løkkegaard, Anja |
title |
Greenland and Canadian Arctic ice temperature profiles database |
title_short |
Greenland and Canadian Arctic ice temperature profiles database |
title_full |
Greenland and Canadian Arctic ice temperature profiles database |
title_fullStr |
Greenland and Canadian Arctic ice temperature profiles database |
title_full_unstemmed |
Greenland and Canadian Arctic ice temperature profiles database |
title_sort |
greenland and canadian arctic ice temperature profiles database |
publisher |
Copernicus |
publishDate |
2023 |
url |
https://hdl.handle.net/20.500.11850/630756 https://doi.org/10.3929/ethz-b-000630756 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet The Cryosphere |
genre_facet |
Arctic Greenland Ice Sheet The Cryosphere |
op_source |
The Cryosphere, 17 (9) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-17-3829-2023 info:eu-repo/grantAgreement/SNF/Projekte MINT/169558 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/153179 http://hdl.handle.net/20.500.11850/630756 doi:10.3929/ethz-b-000630756 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_doi |
https://doi.org/20.500.11850/63075610.3929/ethz-b-00063075610.5194/tc-17-3829-2023 |
_version_ |
1782331027001180160 |