Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada
This study evaluates the seasonal and inter-seasonal temperature regime of small tundra ponds ubiquitous to an extensive, low-gradient wetland in the Canadian High Arctic. Pond temperatures can modify evaporation and ground thaw rates, impact losses of greenhouse gases, and control the timing and em...
Published in: | Hydrology and Earth System Sciences |
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2024
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Online Access: | https://doi.org/10.5194/hess-28-3931-2024 https://doaj.org/article/2e4b687107d44bb88bd71b5ba9da04dc |
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ftdoajarticles:oai:doaj.org/article:2e4b687107d44bb88bd71b5ba9da04dc 2024-09-15T17:58:17+00:00 Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada K. L. Young L. C. Brown 2024-08-01T00:00:00Z https://doi.org/10.5194/hess-28-3931-2024 https://doaj.org/article/2e4b687107d44bb88bd71b5ba9da04dc EN eng Copernicus Publications https://hess.copernicus.org/articles/28/3931/2024/hess-28-3931-2024.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 doi:10.5194/hess-28-3931-2024 1027-5606 1607-7938 https://doaj.org/article/2e4b687107d44bb88bd71b5ba9da04dc Hydrology and Earth System Sciences, Vol 28, Pp 3931-3945 (2024) Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 article 2024 ftdoajarticles https://doi.org/10.5194/hess-28-3931-2024 2024-09-02T15:34:38Z This study evaluates the seasonal and inter-seasonal temperature regime of small tundra ponds ubiquitous to an extensive, low-gradient wetland in the Canadian High Arctic. Pond temperatures can modify evaporation and ground thaw rates, impact losses of greenhouse gases, and control the timing and emergence of insects and larvae critical for migratory-bird feeding habits. We focus our study on thaw ponds with a range of hydrologic linkages and sizes across Nanuit Itillinga, formerly known as Polar Bear Pass (PBP), Bathurst Island, and compare their thermal signals to other Arctic ponds. Pond temperatures and water levels were evaluated using temperature and water level loggers and verified by regular manual measurements. Other environmental data collected included microclimate, frost table depths, and water conductivity. Our results show that there is much variability in pond thermal regimes over seasons, years, and space. Cumulative relative pond temperatures were similar across years, with ponds normally reaching 10–15 °C for short to longer periods, except in 2013, which experienced a cold summer season during which pond temperatures never exceeded 5 °C . Pond frost tables and water conductivities respond to variable substrate conditions and pond thermal patterns. This study contributes to the ongoing discussion on climate warming and its impact on Arctic landscapes. Article in Journal/Newspaper Bathurst Island Nunavut Tundra Directory of Open Access Journals: DOAJ Articles Hydrology and Earth System Sciences 28 16 3931 3945 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
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Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 K. L. Young L. C. Brown Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
topic_facet |
Technology T Environmental technology. Sanitary engineering TD1-1066 Geography. Anthropology. Recreation G Environmental sciences GE1-350 |
description |
This study evaluates the seasonal and inter-seasonal temperature regime of small tundra ponds ubiquitous to an extensive, low-gradient wetland in the Canadian High Arctic. Pond temperatures can modify evaporation and ground thaw rates, impact losses of greenhouse gases, and control the timing and emergence of insects and larvae critical for migratory-bird feeding habits. We focus our study on thaw ponds with a range of hydrologic linkages and sizes across Nanuit Itillinga, formerly known as Polar Bear Pass (PBP), Bathurst Island, and compare their thermal signals to other Arctic ponds. Pond temperatures and water levels were evaluated using temperature and water level loggers and verified by regular manual measurements. Other environmental data collected included microclimate, frost table depths, and water conductivity. Our results show that there is much variability in pond thermal regimes over seasons, years, and space. Cumulative relative pond temperatures were similar across years, with ponds normally reaching 10–15 °C for short to longer periods, except in 2013, which experienced a cold summer season during which pond temperatures never exceeded 5 °C . Pond frost tables and water conductivities respond to variable substrate conditions and pond thermal patterns. This study contributes to the ongoing discussion on climate warming and its impact on Arctic landscapes. |
format |
Article in Journal/Newspaper |
author |
K. L. Young L. C. Brown |
author_facet |
K. L. Young L. C. Brown |
author_sort |
K. L. Young |
title |
Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
title_short |
Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
title_full |
Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
title_fullStr |
Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
title_full_unstemmed |
Thermal regime of High Arctic tundra ponds, Nanuit Itillinga (Polar Bear Pass), Nunavut, Canada |
title_sort |
thermal regime of high arctic tundra ponds, nanuit itillinga (polar bear pass), nunavut, canada |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/hess-28-3931-2024 https://doaj.org/article/2e4b687107d44bb88bd71b5ba9da04dc |
genre |
Bathurst Island Nunavut Tundra |
genre_facet |
Bathurst Island Nunavut Tundra |
op_source |
Hydrology and Earth System Sciences, Vol 28, Pp 3931-3945 (2024) |
op_relation |
https://hess.copernicus.org/articles/28/3931/2024/hess-28-3931-2024.pdf https://doaj.org/toc/1027-5606 https://doaj.org/toc/1607-7938 doi:10.5194/hess-28-3931-2024 1027-5606 1607-7938 https://doaj.org/article/2e4b687107d44bb88bd71b5ba9da04dc |
op_doi |
https://doi.org/10.5194/hess-28-3931-2024 |
container_title |
Hydrology and Earth System Sciences |
container_volume |
28 |
container_issue |
16 |
container_start_page |
3931 |
op_container_end_page |
3945 |
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1810434682357022720 |