Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada
Abstract Temperatures have been measured in a 299 m bore hole that reaches the base of the ice near the divide of the main ice cap on Devon Island in the Canadian Arctic Archipelago. Temperature ranges from — 23.0°C at a depth of 20 m to — 18.4°C at the bottom. The difference between surface and bot...
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Language: | English |
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Cambridge University Press (CUP)
1976
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Online Access: | http://dx.doi.org/10.1017/s0022143000031609 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031609 |
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crcambridgeupr:10.1017/s0022143000031609 2024-03-03T08:40:13+00:00 Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada Paterson, W.S.B. 1976 http://dx.doi.org/10.1017/s0022143000031609 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031609 en eng Cambridge University Press (CUP) Journal of Glaciology volume 16, issue 74, page 277 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 1976 crcambridgeupr https://doi.org/10.1017/s0022143000031609 2024-02-08T08:39:08Z Abstract Temperatures have been measured in a 299 m bore hole that reaches the base of the ice near the divide of the main ice cap on Devon Island in the Canadian Arctic Archipelago. Temperature ranges from — 23.0°C at a depth of 20 m to — 18.4°C at the bottom. The difference between surface and bottom temperatures is about 1.5 deg less than expected for a steady state. Recent climatic warming seems the most likely explanation of the discrepancy. The temperature gradient in the lowest 50 m is approximately linear and corresponds to a geothermal heal flux of 1.5 h.f.u. This value may be invalid, however, because temperatures at and below this depth have probably been perturbed by changes of surface temperature during the past several thousand years, particularly by the warming at the end of the last glaciation. A detailed analysis of the results is in progress. Article in Journal/Newspaper Arctic Archipelago Arctic Canadian Arctic Archipelago Devon Island Ice cap Journal of Glaciology Cambridge University Press Arctic Canadian Arctic Archipelago Canada Devon Island ENVELOPE(-88.000,-88.000,75.252,75.252) Journal of Glaciology 16 74 277 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Paterson, W.S.B. Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
topic_facet |
Earth-Surface Processes |
description |
Abstract Temperatures have been measured in a 299 m bore hole that reaches the base of the ice near the divide of the main ice cap on Devon Island in the Canadian Arctic Archipelago. Temperature ranges from — 23.0°C at a depth of 20 m to — 18.4°C at the bottom. The difference between surface and bottom temperatures is about 1.5 deg less than expected for a steady state. Recent climatic warming seems the most likely explanation of the discrepancy. The temperature gradient in the lowest 50 m is approximately linear and corresponds to a geothermal heal flux of 1.5 h.f.u. This value may be invalid, however, because temperatures at and below this depth have probably been perturbed by changes of surface temperature during the past several thousand years, particularly by the warming at the end of the last glaciation. A detailed analysis of the results is in progress. |
format |
Article in Journal/Newspaper |
author |
Paterson, W.S.B. |
author_facet |
Paterson, W.S.B. |
author_sort |
Paterson, W.S.B. |
title |
Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
title_short |
Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
title_full |
Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
title_fullStr |
Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
title_full_unstemmed |
Reports on Current Work Temperatures in the Devon Island Ice Cap, Arctic Canada |
title_sort |
reports on current work temperatures in the devon island ice cap, arctic canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
1976 |
url |
http://dx.doi.org/10.1017/s0022143000031609 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143000031609 |
long_lat |
ENVELOPE(-88.000,-88.000,75.252,75.252) |
geographic |
Arctic Canadian Arctic Archipelago Canada Devon Island |
geographic_facet |
Arctic Canadian Arctic Archipelago Canada Devon Island |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago Devon Island Ice cap Journal of Glaciology |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago Devon Island Ice cap Journal of Glaciology |
op_source |
Journal of Glaciology volume 16, issue 74, page 277 ISSN 0022-1430 1727-5652 |
op_doi |
https://doi.org/10.1017/s0022143000031609 |
container_title |
Journal of Glaciology |
container_volume |
16 |
container_issue |
74 |
container_start_page |
277 |
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1792495987114115072 |