Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset
Study region: This study analyzed lake surface temperature (LST) trends and spatial distribution across 535 predominantly small to medium lakes across the North Slave Region (NSR) of the Northwest Territories (NWT), Canada. Study focus: The NWT is characterized by a vast number of lakes covering a s...
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ftdoajarticles:oai:doaj.org/article:5d448255d9904a7683eafe4c8ced372e 2024-01-14T10:04:59+01:00 Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset Gifty Attiah Homa Kheyrollah Pour K. Andrea Scott 2023-12-01T00:00:00Z https://doi.org/10.1016/j.ejrh.2023.101571 https://doaj.org/article/5d448255d9904a7683eafe4c8ced372e EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2214581823002586 https://doaj.org/toc/2214-5818 2214-5818 doi:10.1016/j.ejrh.2023.101571 https://doaj.org/article/5d448255d9904a7683eafe4c8ced372e Journal of Hydrology: Regional Studies, Vol 50, Iss , Pp 101571- (2023) Lake surface temperature Landsat Northwest Territories (NWT) Lake Ice Climate change Sub-Arctic Physical geography GB3-5030 Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.1016/j.ejrh.2023.101571 2023-12-17T01:37:50Z Study region: This study analyzed lake surface temperature (LST) trends and spatial distribution across 535 predominantly small to medium lakes across the North Slave Region (NSR) of the Northwest Territories (NWT), Canada. Study focus: The NWT is characterized by a vast number of lakes covering a significant portion of its spatial extent. However, there is limited knowledge of how LST responds to climate warming in this region. To address this, LST was analyzed in four distinct periods: open water season (OW), ice cover season (IC), and the transitional months of May (TM) and October (TO). LSTs from 1984 to 2021 were retrieved from a lake-specific satellite-derived LST dataset (North Slave LST). LST trend distribution and relationships were analyzed using the Mann-Kendall test and a multilinear regression model. New hydrological insights: The analysis revealed an overall increase in LST, with average rates (max) of 0.03 °C/year (0.05 °C/year), 0.03 °C/year (0.06 °C/year), and 0.13 °C/year (0.27 °C/year) for OW, TM, and TO, respectively accross study lakes. A faster rate of change was observed in October compared to other periods. Results indicated significant increases in LST for 411 lakes (77%) during OW, 418 lakes (78%) during TO, and 490 lakes (92%) during TM. The spatial distribution and magnitude of LST change were primarily influenced by geographical than morphometric properties. The analysis demonstrated later freeze-up (0.20 day/year) and earlier break-up (−0.17 day/year) of lake ice across the NSR. Article in Journal/Newspaper Arctic Climate change Northwest Territories Directory of Open Access Journals: DOAJ Articles Arctic Canada Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497) North Slave Region ENVELOPE(-116.043,-116.043,62.802,62.802) Northwest Territories Journal of Hydrology: Regional Studies 50 101571 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Lake surface temperature Landsat Northwest Territories (NWT) Lake Ice Climate change Sub-Arctic Physical geography GB3-5030 Geology QE1-996.5 |
spellingShingle |
Lake surface temperature Landsat Northwest Territories (NWT) Lake Ice Climate change Sub-Arctic Physical geography GB3-5030 Geology QE1-996.5 Gifty Attiah Homa Kheyrollah Pour K. Andrea Scott Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
topic_facet |
Lake surface temperature Landsat Northwest Territories (NWT) Lake Ice Climate change Sub-Arctic Physical geography GB3-5030 Geology QE1-996.5 |
description |
Study region: This study analyzed lake surface temperature (LST) trends and spatial distribution across 535 predominantly small to medium lakes across the North Slave Region (NSR) of the Northwest Territories (NWT), Canada. Study focus: The NWT is characterized by a vast number of lakes covering a significant portion of its spatial extent. However, there is limited knowledge of how LST responds to climate warming in this region. To address this, LST was analyzed in four distinct periods: open water season (OW), ice cover season (IC), and the transitional months of May (TM) and October (TO). LSTs from 1984 to 2021 were retrieved from a lake-specific satellite-derived LST dataset (North Slave LST). LST trend distribution and relationships were analyzed using the Mann-Kendall test and a multilinear regression model. New hydrological insights: The analysis revealed an overall increase in LST, with average rates (max) of 0.03 °C/year (0.05 °C/year), 0.03 °C/year (0.06 °C/year), and 0.13 °C/year (0.27 °C/year) for OW, TM, and TO, respectively accross study lakes. A faster rate of change was observed in October compared to other periods. Results indicated significant increases in LST for 411 lakes (77%) during OW, 418 lakes (78%) during TO, and 490 lakes (92%) during TM. The spatial distribution and magnitude of LST change were primarily influenced by geographical than morphometric properties. The analysis demonstrated later freeze-up (0.20 day/year) and earlier break-up (−0.17 day/year) of lake ice across the NSR. |
format |
Article in Journal/Newspaper |
author |
Gifty Attiah Homa Kheyrollah Pour K. Andrea Scott |
author_facet |
Gifty Attiah Homa Kheyrollah Pour K. Andrea Scott |
author_sort |
Gifty Attiah |
title |
Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
title_short |
Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
title_full |
Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
title_fullStr |
Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
title_full_unstemmed |
Four decades of lake surface temperature in the Northwest Territories, Canada, using a lake-specific satellite-derived dataset |
title_sort |
four decades of lake surface temperature in the northwest territories, canada, using a lake-specific satellite-derived dataset |
publisher |
Elsevier |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.ejrh.2023.101571 https://doaj.org/article/5d448255d9904a7683eafe4c8ced372e |
long_lat |
ENVELOPE(-59.828,-59.828,-63.497,-63.497) ENVELOPE(-116.043,-116.043,62.802,62.802) |
geographic |
Arctic Canada Kendall North Slave Region Northwest Territories |
geographic_facet |
Arctic Canada Kendall North Slave Region Northwest Territories |
genre |
Arctic Climate change Northwest Territories |
genre_facet |
Arctic Climate change Northwest Territories |
op_source |
Journal of Hydrology: Regional Studies, Vol 50, Iss , Pp 101571- (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2214581823002586 https://doaj.org/toc/2214-5818 2214-5818 doi:10.1016/j.ejrh.2023.101571 https://doaj.org/article/5d448255d9904a7683eafe4c8ced372e |
op_doi |
https://doi.org/10.1016/j.ejrh.2023.101571 |
container_title |
Journal of Hydrology: Regional Studies |
container_volume |
50 |
container_start_page |
101571 |
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1788059404458786816 |