Greenland and Canadian Arctic ice temperature profiles
Here, we present a compilation of 85 ice temperature profiles from 79 boreholes from the Greenland Ice Sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Only 25 profiles (32 %) were previously available in open-access data repositories. The remaining 54 profiles (68 %)...
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/577303 2023-10-09T21:48:48+02:00 Greenland and Canadian Arctic ice temperature profiles Løkkegaard, Anja Mankoff, Kenneth Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel Thomsen, Henrik 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 Abbas Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Fausto, Roberto S. Colgan, William T. 2022-09-14 application/application/pdf https://hdl.handle.net/20.500.11850/577303 https://doi.org/10.3929/ethz-b-000577303 en eng Copernicus info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-2022-138 info:eu-repo/grantAgreement/EC/H2020/869304 info:eu-repo/grantAgreement/SNF/Projekte MINT/184634 http://hdl.handle.net/20.500.11850/577303 doi:10.3929/ethz-b-000577303 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International The Cryosphere Discussions info:eu-repo/semantics/workingPaper 2022 ftethz https://doi.org/20.500.11850/57730310.3929/ethz-b-00057730310.5194/tc-2022-138 2023-09-17T23:49:53Z Here, we present a compilation of 85 ice temperature profiles from 79 boreholes from the Greenland Ice Sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Only 25 profiles (32 %) were previously available in open-access data repositories. The remaining 54 profiles (68 %) 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 85 profiles are now made available in both absolute (meters) and normalized (0 to 1 ice thickness) depth scales, and are accompanied by extensive metadata. This metadata includes 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:1994-0432 ISSN:1994-0440 Report Arctic Greenland Ice Sheet The Cryosphere The Cryosphere Discussions ETH Zürich Research Collection Arctic Greenland |
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Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
description |
Here, we present a compilation of 85 ice temperature profiles from 79 boreholes from the Greenland Ice Sheet and peripheral ice caps, as well as local ice caps in the Canadian Arctic. Only 25 profiles (32 %) were previously available in open-access data repositories. The remaining 54 profiles (68 %) 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 85 profiles are now made available in both absolute (meters) and normalized (0 to 1 ice thickness) depth scales, and are accompanied by extensive metadata. This metadata includes 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:1994-0432 ISSN:1994-0440 |
format |
Report |
author |
Løkkegaard, Anja Mankoff, Kenneth Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel Thomsen, Henrik 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 Abbas Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Fausto, Roberto S. Colgan, William T. |
spellingShingle |
Løkkegaard, Anja Mankoff, Kenneth Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel Thomsen, Henrik 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 Abbas Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Fausto, Roberto S. Colgan, William T. Greenland and Canadian Arctic ice temperature profiles |
author_facet |
Løkkegaard, Anja Mankoff, Kenneth Zdanowicz, Christian Clow, Gary D. Lüthi, Martin P. Doyle, Samuel Thomsen, Henrik 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 Abbas Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène id_orcid:0 000-0003-2501-7645 Fausto, Roberto S. Colgan, William T. |
author_sort |
Løkkegaard, Anja |
title |
Greenland and Canadian Arctic ice temperature profiles |
title_short |
Greenland and Canadian Arctic ice temperature profiles |
title_full |
Greenland and Canadian Arctic ice temperature profiles |
title_fullStr |
Greenland and Canadian Arctic ice temperature profiles |
title_full_unstemmed |
Greenland and Canadian Arctic ice temperature profiles |
title_sort |
greenland and canadian arctic ice temperature profiles |
publisher |
Copernicus |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.11850/577303 https://doi.org/10.3929/ethz-b-000577303 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet The Cryosphere The Cryosphere Discussions |
genre_facet |
Arctic Greenland Ice Sheet The Cryosphere The Cryosphere Discussions |
op_source |
The Cryosphere Discussions |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/tc-2022-138 info:eu-repo/grantAgreement/EC/H2020/869304 info:eu-repo/grantAgreement/SNF/Projekte MINT/184634 http://hdl.handle.net/20.500.11850/577303 doi:10.3929/ethz-b-000577303 |
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/20.500.11850/57730310.3929/ethz-b-00057730310.5194/tc-2022-138 |
_version_ |
1779311874560491520 |