A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers
Numerous studies utilizing remote sensing imagery and other methods have documented that thermokarst lakes are undergoing varied hydrological transitions in response to recent climate changes, from surface area expansion to drainage and evaporative desiccation. Here, we provide a synthesis of hydrol...
Published in: | Arctic Science |
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Canadian Science Publishing
2017
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Online Access: | https://doi.org/10.1139/as-2016-0019 https://doaj.org/article/9e511147ff5c4b73ab4ed05cf57695b2 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:9e511147ff5c4b73ab4ed05cf57695b2 2023-05-15T14:22:21+02:00 A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers Lauren A. MacDonald Brent B. Wolfe Kevin W. Turner Lesleigh Anderson Christopher D. Arp S. Jean Birks Frédéric Bouchard Thomas W.D. Edwards Nicole Farquharson Roland I. Hall Ian McDonald Biljana Narancic Chantal Ouimet Reinhard Pienitz Jana Tondu Hilary White 2017-06-01 https://doi.org/10.1139/as-2016-0019 https://doaj.org/article/9e511147ff5c4b73ab4ed05cf57695b2 en fr eng fre Canadian Science Publishing doi:10.1139/as-2016-0019 2368-7460 https://doaj.org/article/9e511147ff5c4b73ab4ed05cf57695b2 undefined Arctic Science, Vol 3, Iss 2, Pp 118-149 (2017) thermokarst lakes high-latitude regions water isotope tracers hydrology permafrost climate change geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.1139/as-2016-0019 2023-01-22T17:51:25Z Numerous studies utilizing remote sensing imagery and other methods have documented that thermokarst lakes are undergoing varied hydrological transitions in response to recent climate changes, from surface area expansion to drainage and evaporative desiccation. Here, we provide a synthesis of hydrological conditions for 376 lakes of mainly thermokarst origin across high-latitude North America. We assemble surface water isotope compositions measured during the past decade at five lake-rich landscapes including Arctic Coastal Plain (Alaska), Yukon Flats (Alaska), Old Crow Flats (Yukon), northwestern Hudson Bay Lowlands (Manitoba), and Nunavik (Quebec). These landscapes represent the broad range of thermokarst environments by spanning gradients in meteorological, permafrost, and vegetation conditions. An isotope framework was established based on flux-weighted long-term averages of meteorological conditions for each lake to quantify water balance metrics. The isotope composition of source water and evaporation-to-inflow ratio for each lake were determined, and the results demonstrated a substantial array of regional and subregional diversity of lake hydrological conditions. Controls on lake water balance and how these vary among the five landscapes and with differing environmental drivers are assessed. Findings reveal that lakes in the Hudson Bay Lowlands are most vulnerable to evaporative desiccation, whereas those in Nunavik are most resilient. However, we also identify the complexity in predicting hydrological responses of these thermokarst landscapes to future climate change. Article in Journal/Newspaper Arctic Arctic Climate change Hudson Bay Old Crow permafrost Thermokarst Alaska Nunavik Yukon Unknown Arctic Hudson Hudson Bay Nunavik Old Crow Flats ENVELOPE(-139.755,-139.755,68.083,68.083) Yukon Arctic Science 3 2 118 149 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English French |
topic |
thermokarst lakes high-latitude regions water isotope tracers hydrology permafrost climate change geo envir |
spellingShingle |
thermokarst lakes high-latitude regions water isotope tracers hydrology permafrost climate change geo envir Lauren A. MacDonald Brent B. Wolfe Kevin W. Turner Lesleigh Anderson Christopher D. Arp S. Jean Birks Frédéric Bouchard Thomas W.D. Edwards Nicole Farquharson Roland I. Hall Ian McDonald Biljana Narancic Chantal Ouimet Reinhard Pienitz Jana Tondu Hilary White A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
topic_facet |
thermokarst lakes high-latitude regions water isotope tracers hydrology permafrost climate change geo envir |
description |
Numerous studies utilizing remote sensing imagery and other methods have documented that thermokarst lakes are undergoing varied hydrological transitions in response to recent climate changes, from surface area expansion to drainage and evaporative desiccation. Here, we provide a synthesis of hydrological conditions for 376 lakes of mainly thermokarst origin across high-latitude North America. We assemble surface water isotope compositions measured during the past decade at five lake-rich landscapes including Arctic Coastal Plain (Alaska), Yukon Flats (Alaska), Old Crow Flats (Yukon), northwestern Hudson Bay Lowlands (Manitoba), and Nunavik (Quebec). These landscapes represent the broad range of thermokarst environments by spanning gradients in meteorological, permafrost, and vegetation conditions. An isotope framework was established based on flux-weighted long-term averages of meteorological conditions for each lake to quantify water balance metrics. The isotope composition of source water and evaporation-to-inflow ratio for each lake were determined, and the results demonstrated a substantial array of regional and subregional diversity of lake hydrological conditions. Controls on lake water balance and how these vary among the five landscapes and with differing environmental drivers are assessed. Findings reveal that lakes in the Hudson Bay Lowlands are most vulnerable to evaporative desiccation, whereas those in Nunavik are most resilient. However, we also identify the complexity in predicting hydrological responses of these thermokarst landscapes to future climate change. |
format |
Article in Journal/Newspaper |
author |
Lauren A. MacDonald Brent B. Wolfe Kevin W. Turner Lesleigh Anderson Christopher D. Arp S. Jean Birks Frédéric Bouchard Thomas W.D. Edwards Nicole Farquharson Roland I. Hall Ian McDonald Biljana Narancic Chantal Ouimet Reinhard Pienitz Jana Tondu Hilary White |
author_facet |
Lauren A. MacDonald Brent B. Wolfe Kevin W. Turner Lesleigh Anderson Christopher D. Arp S. Jean Birks Frédéric Bouchard Thomas W.D. Edwards Nicole Farquharson Roland I. Hall Ian McDonald Biljana Narancic Chantal Ouimet Reinhard Pienitz Jana Tondu Hilary White |
author_sort |
Lauren A. MacDonald |
title |
A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
title_short |
A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
title_full |
A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
title_fullStr |
A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
title_full_unstemmed |
A synthesis of thermokarst lake water balance in high-latitude regions of North America from isotope tracers |
title_sort |
synthesis of thermokarst lake water balance in high-latitude regions of north america from isotope tracers |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
https://doi.org/10.1139/as-2016-0019 https://doaj.org/article/9e511147ff5c4b73ab4ed05cf57695b2 |
long_lat |
ENVELOPE(-139.755,-139.755,68.083,68.083) |
geographic |
Arctic Hudson Hudson Bay Nunavik Old Crow Flats Yukon |
geographic_facet |
Arctic Hudson Hudson Bay Nunavik Old Crow Flats Yukon |
genre |
Arctic Arctic Climate change Hudson Bay Old Crow permafrost Thermokarst Alaska Nunavik Yukon |
genre_facet |
Arctic Arctic Climate change Hudson Bay Old Crow permafrost Thermokarst Alaska Nunavik Yukon |
op_source |
Arctic Science, Vol 3, Iss 2, Pp 118-149 (2017) |
op_relation |
doi:10.1139/as-2016-0019 2368-7460 https://doaj.org/article/9e511147ff5c4b73ab4ed05cf57695b2 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1139/as-2016-0019 |
container_title |
Arctic Science |
container_volume |
3 |
container_issue |
2 |
container_start_page |
118 |
op_container_end_page |
149 |
_version_ |
1766294968615305216 |