Ensom, T.P., Burn, C.R., Kokelj, S.V. (2012) Lake- and channel-bottom temperatures in the Mackenzie Delta, Northwest Territories1This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada.2Polar Continental Shelf Project Contribution 03511. Canadian Journal of Earth Sciences, 49 (8) 963-978 doi:10.1139/e2012-001
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Lake- and channel-bottom temperatures in the Mackenzie Delta, Northwest Territories1This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada.2Polar Continental Shelf Project Contribution 03511. | ||
| Journal | Canadian Journal of Earth Sciences | ||
| Authors | Ensom, T.P. | Author | |
| Burn, C.R. | Author | ||
| Kokelj, S.V. | Author | ||
| Year | 2012 (August) | Volume | 49 |
| Issue | 8 | ||
| Publisher | Canadian Science Publishing | ||
| DOI | doi:10.1139/e2012-001Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 484845 | Long-form Identifier | mindat:1:5:484845:9 |
| GUID | 0 | ||
| Full Reference | Ensom, T.P., Burn, C.R., Kokelj, S.V. (2012) Lake- and channel-bottom temperatures in the Mackenzie Delta, Northwest Territories1This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada.2Polar Continental Shelf Project Contribution 03511. Canadian Journal of Earth Sciences, 49 (8) 963-978 doi:10.1139/e2012-001 | ||
| Plain Text | Ensom, T.P., Burn, C.R., Kokelj, S.V. (2012) Lake- and channel-bottom temperatures in the Mackenzie Delta, Northwest Territories1This article is one of a series of papers published in this CJES Special Issue on the theme of Fundamental and applied research on permafrost in Canada.2Polar Continental Shelf Project Contribution 03511. Canadian Journal of Earth Sciences, 49 (8) 963-978 doi:10.1139/e2012-001 | ||
| In | (2012, August) Canadian Journal of Earth Sciences Vol. 49 (8) Canadian Science Publishing | ||
| Abstract/Notes | Temperature loggers were placed in 17 lakes and 13 channels throughout the Mackenzie Delta to determine the annual mean bottom temperature ([Formula: see text]) and its spatial and temporal variation for June 2009 – June 2010. The lakes were classified as perched or connected, depending on the duration of their connection to the channel hydrologic system. Average [Formula: see text] values for nine perched lakes, five channels, and eight connected lakes distributed throughout the Mackenzie Delta were 5.5, 4.6, and 3.4 °C, respectively. The range of [Formula: see text] among all instrumented water bodies in the Delta was 4.0 °C. Over the year, bottom temperatures ranged from >20 °C in midsummer to –5 °C in midwinter, with relative stability between freeze-up in mid-October and breakup at the beginning of June. Channel, perched, and connected lake [Formula: see text], and mean annual near-surface ground temperatures of –4 °C in alluvial sedge wetlands and –2.25 °C in forest, were used to estimate that about 60% of Delta lakes and nearly the entire channel network maintain through-taliks. | ||
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