| Download | - View final version: Permafrost and the shallow thermal regime at Alert, N.W.T. (PDF, 1.6 MiB)
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| Author | Search for: Taylor, A.; Search for: Brown, R. J. E.; Search for: Pilon, J.; Search for: Judge, A. S. |
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| Format | Text, Article |
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| Conference | Roger J.E. Brown Memorial Volume. Proceedings Fourth Canadian Permafrost Conference, March 2, 1981, Calgary, Alberta, Canada |
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| Subject | permafrost; soils; seasons; temperature; cold regions; Northwest Territories, Canada; terrain analysis; ground temperatures |
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| Abstract | In 1978, a shallow permafrost and terrain analysis study was started at Canadian Forces Station Alert, N.W.T. (82 degrees 30 minutes N, 62 degrees 26 minutes W). Five holes, drilled to depths down to 60 m, were instrumented with multi- thermistor cables, and temperature measurements have been taken every two or three weeks for the last three years by DND personnel. The drilling sites were chosen to cover various terrain types accessible from the Alert station. Preliminary air photo analysis indicates that the principal landforms are of glacial and marine origin. A 60 m temperature cable (site 1), installed within 100 m of a shore-line emerging due to glacial unloading, yields temperatures 4 to 5 K warmer than two similar cables installed on inland plateau sites (sites 2 and 3). An analysis of these three sites suggests the higher subsurface temperatures at the shore site result as much from its proximity to the sea as from the period of submergence prior to 3000 years ago. Temperature cables installed in two 15 m holes (sites 4 and 5) on gentle north- and south-facing slopes have shown that aspect has little influence on temperatures at this extreme latitude. |
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| Publication date | 1982 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Identifier | DBR-P-1072 |
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| NRC number | NRCC 20806
NRC-IRC-568 |
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| NPARC number | 20375130 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 06c0c1c7-ceb7-485a-8c84-466b1b700e54 |
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| Record created | 2012-07-23 |
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| Record modified | 2024-03-22 |
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