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...
Published in: | The Cryosphere |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://orbit.dtu.dk/en/publications/248e7567-f30f-4363-9eef-cc78d04b8e02 https://doi.org/10.5194/tc-17-3829-2023 https://backend.orbit.dtu.dk/ws/files/338839833/tc-17-3829-2023.pdf |
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ftdtupubl:oai:pure.atira.dk:publications/248e7567-f30f-4363-9eef-cc78d04b8e02 2024-06-23T07:48:44+00:00 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 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène Seguinot, Julien Fausto, Robert S. Colgan, William T. 2023 application/pdf https://orbit.dtu.dk/en/publications/248e7567-f30f-4363-9eef-cc78d04b8e02 https://doi.org/10.5194/tc-17-3829-2023 https://backend.orbit.dtu.dk/ws/files/338839833/tc-17-3829-2023.pdf eng eng https://orbit.dtu.dk/en/publications/248e7567-f30f-4363-9eef-cc78d04b8e02 info:eu-repo/semantics/openAccess Løkkegaard , A , Mankoff , K D , Zdanowicz , C , Clow , G D , Lüthi , M P , Doyle , S H , Thomsen , H H , Fisher , D , Harper , J , Aschwanden , A , Vinther , B M , Dahl-Jensen , D , Zekollari , H , Meierbachtol , T , McDowell , I , Humphrey , N , Solgaard , A , Karlsson , N B , Khan , S A , Hills , B , Law , R , Hubbard , B , Christoffersen , P , Jacquemart , M , Seguinot , J , Fausto , R S & Colgan , W T 2023 , ' Greenland and Canadian Arctic ice temperature profiles database ' , Cryosphere , vol. 17 , no. 9 , pp. 3829-3845 . https://doi.org/10.5194/tc-17-3829-2023 article 2023 ftdtupubl https://doi.org/10.5194/tc-17-3829-2023 2024-06-11T15:20:47Z 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. Article in Journal/Newspaper Arctic Arctic Greenland Ice Sheet Technical University of Denmark: DTU Orbit Arctic Greenland The Cryosphere 17 9 3829 3845 |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
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. |
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 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène Seguinot, Julien 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 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène Seguinot, Julien 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 Meierbachtol, Toby McDowell, Ian Humphrey, Neil Solgaard, Anne Karlsson, Nanna B. Khan, Shfaqat A. Hills, Benjamin Law, Robert Hubbard, Bryn Christoffersen, Poul Jacquemart, Mylène Seguinot, Julien 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 |
publishDate |
2023 |
url |
https://orbit.dtu.dk/en/publications/248e7567-f30f-4363-9eef-cc78d04b8e02 https://doi.org/10.5194/tc-17-3829-2023 https://backend.orbit.dtu.dk/ws/files/338839833/tc-17-3829-2023.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland Ice Sheet |
genre_facet |
Arctic Arctic Greenland Ice Sheet |
op_source |
Løkkegaard , A , Mankoff , K D , Zdanowicz , C , Clow , G D , Lüthi , M P , Doyle , S H , Thomsen , H H , Fisher , D , Harper , J , Aschwanden , A , Vinther , B M , Dahl-Jensen , D , Zekollari , H , Meierbachtol , T , McDowell , I , Humphrey , N , Solgaard , A , Karlsson , N B , Khan , S A , Hills , B , Law , R , Hubbard , B , Christoffersen , P , Jacquemart , M , Seguinot , J , Fausto , R S & Colgan , W T 2023 , ' Greenland and Canadian Arctic ice temperature profiles database ' , Cryosphere , vol. 17 , no. 9 , pp. 3829-3845 . https://doi.org/10.5194/tc-17-3829-2023 |
op_relation |
https://orbit.dtu.dk/en/publications/248e7567-f30f-4363-9eef-cc78d04b8e02 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-17-3829-2023 |
container_title |
The Cryosphere |
container_volume |
17 |
container_issue |
9 |
container_start_page |
3829 |
op_container_end_page |
3845 |
_version_ |
1802639060765769728 |