Multiyear variations in High Arctic river temperatures in response to climate variability
Water temperature measurements (2004–2016) from two small rivers in the High Arctic were analyzed to determine the effects of climate variability on thermal regime and the sensitivity to climate change. The East and West rivers (unofficial names) drain similar watersheds (11.6 and 8.0 km2, respectiv...
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Canadian Science Publishing
2018
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ftdoajarticles:oai:doaj.org/article:953b3e95af084439924cab4d0e409ee1 2023-05-15T14:23:36+02:00 Multiyear variations in High Arctic river temperatures in response to climate variability Christopher Bolduc Scott F. Lamoureux 2018-09-01T00:00:00Z https://doi.org/10.1139/as-2017-0053 https://doaj.org/article/953b3e95af084439924cab4d0e409ee1 EN FR eng fre Canadian Science Publishing https://doi.org/10.1139/as-2017-0053 https://doaj.org/toc/2368-7460 doi:10.1139/as-2017-0053 2368-7460 https://doaj.org/article/953b3e95af084439924cab4d0e409ee1 Arctic Science, Vol 4, Iss 4, Pp 605-623 (2018) water temperature arctic snow permafrost climate change Environmental sciences GE1-350 Environmental engineering TA170-171 article 2018 ftdoajarticles https://doi.org/10.1139/as-2017-0053 2022-12-31T12:58:52Z Water temperature measurements (2004–2016) from two small rivers in the High Arctic were analyzed to determine the effects of climate variability on thermal regime and the sensitivity to climate change. The East and West rivers (unofficial names) drain similar watersheds (11.6 and 8.0 km2, respectively) and are located at the Cape Bounty Arctic Watershed Observatory (CBAWO), Melville Island, Canada (74°55′N, 109°35′W). Differences in seasonal timing of river temperatures were evident when comparing the coldest and warmest years of the study period, and across different discharge conditions. Snowmelt runoff is characterized by uniformly cold water (∼0–1 °C) over a wide range of discharge conditions, followed by warming water temperatures during flow recession. The rivers showed varying sensitivity to mid-summer air temperature conditions in a given year, with warmer years indicating high correlation (r2 = 0.794–0.929), whereas colder years showed reduced correlation (r2 = 0.368–0.778). River temperatures reached levels which are reported to negatively affect fish and other cold-water aquatic species (>18 °C) with greater frequency and duration during the warmest years. These results provide a basis to further enhance prediction of river thermal conditions to assess ecosystem health in a river system and to refine insights into the effects of climate change on High Arctic aquatic ecosystems. Article in Journal/Newspaper Arctic Arctic Climate change permafrost Melville Island Directory of Open Access Journals: DOAJ Articles Arctic Canada Cape Bounty ENVELOPE(-109.542,-109.542,74.863,74.863) Arctic Science 4 4 605 623 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
water temperature arctic snow permafrost climate change Environmental sciences GE1-350 Environmental engineering TA170-171 |
spellingShingle |
water temperature arctic snow permafrost climate change Environmental sciences GE1-350 Environmental engineering TA170-171 Christopher Bolduc Scott F. Lamoureux Multiyear variations in High Arctic river temperatures in response to climate variability |
topic_facet |
water temperature arctic snow permafrost climate change Environmental sciences GE1-350 Environmental engineering TA170-171 |
description |
Water temperature measurements (2004–2016) from two small rivers in the High Arctic were analyzed to determine the effects of climate variability on thermal regime and the sensitivity to climate change. The East and West rivers (unofficial names) drain similar watersheds (11.6 and 8.0 km2, respectively) and are located at the Cape Bounty Arctic Watershed Observatory (CBAWO), Melville Island, Canada (74°55′N, 109°35′W). Differences in seasonal timing of river temperatures were evident when comparing the coldest and warmest years of the study period, and across different discharge conditions. Snowmelt runoff is characterized by uniformly cold water (∼0–1 °C) over a wide range of discharge conditions, followed by warming water temperatures during flow recession. The rivers showed varying sensitivity to mid-summer air temperature conditions in a given year, with warmer years indicating high correlation (r2 = 0.794–0.929), whereas colder years showed reduced correlation (r2 = 0.368–0.778). River temperatures reached levels which are reported to negatively affect fish and other cold-water aquatic species (>18 °C) with greater frequency and duration during the warmest years. These results provide a basis to further enhance prediction of river thermal conditions to assess ecosystem health in a river system and to refine insights into the effects of climate change on High Arctic aquatic ecosystems. |
format |
Article in Journal/Newspaper |
author |
Christopher Bolduc Scott F. Lamoureux |
author_facet |
Christopher Bolduc Scott F. Lamoureux |
author_sort |
Christopher Bolduc |
title |
Multiyear variations in High Arctic river temperatures in response to climate variability |
title_short |
Multiyear variations in High Arctic river temperatures in response to climate variability |
title_full |
Multiyear variations in High Arctic river temperatures in response to climate variability |
title_fullStr |
Multiyear variations in High Arctic river temperatures in response to climate variability |
title_full_unstemmed |
Multiyear variations in High Arctic river temperatures in response to climate variability |
title_sort |
multiyear variations in high arctic river temperatures in response to climate variability |
publisher |
Canadian Science Publishing |
publishDate |
2018 |
url |
https://doi.org/10.1139/as-2017-0053 https://doaj.org/article/953b3e95af084439924cab4d0e409ee1 |
long_lat |
ENVELOPE(-109.542,-109.542,74.863,74.863) |
geographic |
Arctic Canada Cape Bounty |
geographic_facet |
Arctic Canada Cape Bounty |
genre |
Arctic Arctic Climate change permafrost Melville Island |
genre_facet |
Arctic Arctic Climate change permafrost Melville Island |
op_source |
Arctic Science, Vol 4, Iss 4, Pp 605-623 (2018) |
op_relation |
https://doi.org/10.1139/as-2017-0053 https://doaj.org/toc/2368-7460 doi:10.1139/as-2017-0053 2368-7460 https://doaj.org/article/953b3e95af084439924cab4d0e409ee1 |
op_doi |
https://doi.org/10.1139/as-2017-0053 |
container_title |
Arctic Science |
container_volume |
4 |
container_issue |
4 |
container_start_page |
605 |
op_container_end_page |
623 |
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1766296113333141504 |