Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut
Interest is growing about how groundwater supplies will shift in warming northern terrains. We evaluated the seasonal and spatial pattern of groundwater flow in a wet meadow bordered by a late‐lying snowbed and tundra ponds at Polar Bear Pass, Bathurst Island (75.7°N, 98.7°W). A water budget approac...
Published in: | Permafrost and Periglacial Processes |
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Online Access: | https://doi.org/10.1002/ppp.1931 |
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ftrepec:oai:RePEc:wly:perpro:v:28:y:2017:i:2:p:405-419 2023-05-15T15:39:54+02:00 Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut Kathy L. Young Harold‐Alexis Scheffel Anna Abnizova John R. Siferd https://doi.org/10.1002/ppp.1931 unknown https://doi.org/10.1002/ppp.1931 article ftrepec https://doi.org/10.1002/ppp.1931 2020-12-04T13:31:25Z Interest is growing about how groundwater supplies will shift in warming northern terrains. We evaluated the seasonal and spatial pattern of groundwater flow in a wet meadow bordered by a late‐lying snowbed and tundra ponds at Polar Bear Pass, Bathurst Island (75.7°N, 98.7°W). A water budget approach signalled the relative importance of groundwater inflow to tundra ponds. Groundwater flow across the wet meadow was estimated using a modified Darcy's equation, which requires information on both water and frost tables, and hydraulic conductivity. These data were obtained from 2007 to 2009 along a series of water wells extending from a late‐lying snowbed across the wet meadow to a nearby study pond. Groundwater fluxes across the wet meadow were limited in magnitude and duration in a warm/dry year (2007), when the late‐lying snowbed was the main external water source, a response differing from rainy/cool years (2008 and 2009). Overall, seasonal water budgets indicate that groundwater fluxes were minimal in the wet meadow and an adjacent tundra pond. Late‐lying snowbeds play a limited role in sustaining wet meadows and ponds here. Summer precipitation and evaporation continue to drive wet meadow and tundra pond hydrological response in low‐gradient wetlands, especially in the post‐snowmelt season. Copyright © 2016 John Wiley & Sons, Ltd. Article in Journal/Newspaper Bathurst Island Nunavut Tundra RePEc (Research Papers in Economics) Bathurst Island ENVELOPE(-100.002,-100.002,75.752,75.752) Bear Pass ENVELOPE(-127.770,-127.770,61.600,61.600) Nunavut Polar Bear Pass ENVELOPE(-98.385,-98.385,75.718,75.718) Permafrost and Periglacial Processes 28 2 405 419 |
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RePEc (Research Papers in Economics) |
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Interest is growing about how groundwater supplies will shift in warming northern terrains. We evaluated the seasonal and spatial pattern of groundwater flow in a wet meadow bordered by a late‐lying snowbed and tundra ponds at Polar Bear Pass, Bathurst Island (75.7°N, 98.7°W). A water budget approach signalled the relative importance of groundwater inflow to tundra ponds. Groundwater flow across the wet meadow was estimated using a modified Darcy's equation, which requires information on both water and frost tables, and hydraulic conductivity. These data were obtained from 2007 to 2009 along a series of water wells extending from a late‐lying snowbed across the wet meadow to a nearby study pond. Groundwater fluxes across the wet meadow were limited in magnitude and duration in a warm/dry year (2007), when the late‐lying snowbed was the main external water source, a response differing from rainy/cool years (2008 and 2009). Overall, seasonal water budgets indicate that groundwater fluxes were minimal in the wet meadow and an adjacent tundra pond. Late‐lying snowbeds play a limited role in sustaining wet meadows and ponds here. Summer precipitation and evaporation continue to drive wet meadow and tundra pond hydrological response in low‐gradient wetlands, especially in the post‐snowmelt season. Copyright © 2016 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Kathy L. Young Harold‐Alexis Scheffel Anna Abnizova John R. Siferd |
spellingShingle |
Kathy L. Young Harold‐Alexis Scheffel Anna Abnizova John R. Siferd Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
author_facet |
Kathy L. Young Harold‐Alexis Scheffel Anna Abnizova John R. Siferd |
author_sort |
Kathy L. Young |
title |
Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
title_short |
Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
title_full |
Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
title_fullStr |
Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
title_full_unstemmed |
Spatial and temporal dynamics of groundwater flow across a wet meadow, Polar Bear Pass, Bathurst island, Nunavut |
title_sort |
spatial and temporal dynamics of groundwater flow across a wet meadow, polar bear pass, bathurst island, nunavut |
url |
https://doi.org/10.1002/ppp.1931 |
long_lat |
ENVELOPE(-100.002,-100.002,75.752,75.752) ENVELOPE(-127.770,-127.770,61.600,61.600) ENVELOPE(-98.385,-98.385,75.718,75.718) |
geographic |
Bathurst Island Bear Pass Nunavut Polar Bear Pass |
geographic_facet |
Bathurst Island Bear Pass Nunavut Polar Bear Pass |
genre |
Bathurst Island Nunavut Tundra |
genre_facet |
Bathurst Island Nunavut Tundra |
op_relation |
https://doi.org/10.1002/ppp.1931 |
op_doi |
https://doi.org/10.1002/ppp.1931 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
28 |
container_issue |
2 |
container_start_page |
405 |
op_container_end_page |
419 |
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1766371982854586368 |