Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada
Abstract Patterned bog and fen peatlands, which dominate the landscape in the Hudson Bay Lowlands (HBL), act as important water storage and conveyance features in this region. In spite of their hydrological importance, there are currently no studies that define and characterize the thresholds of bog...
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crwiley:10.1002/hyp.14575 2024-06-23T07:50:40+00:00 Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada Balliston, Nicole Price, Jonathan S. Garfield Weston Foundation Global Water Futures 2022 http://dx.doi.org/10.1002/hyp.14575 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.14575 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.14575 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 36, issue 4 ISSN 0885-6087 1099-1085 journal-article 2022 crwiley https://doi.org/10.1002/hyp.14575 2024-06-06T04:21:43Z Abstract Patterned bog and fen peatlands, which dominate the landscape in the Hudson Bay Lowlands (HBL), act as important water storage and conveyance features in this region. In spite of their hydrological importance, there are currently no studies that define and characterize the thresholds of bog‐fen‐tributary hydrological connectivity in the HBL or their relation to seasonal and annual changes in water fluxes. To this end, hydrological (i.e., streamflow and groundwater levels) and meteorological (i.e., precipitation, snow depth, evapotranspiration, and temperature) data were collected at a 4.8 km 2 bog‐fen‐tributary complex between 2007 and 2018. Connectivity thresholds were best characterized into three states (disconnected, connected, and high activity) that incorporated 41%, 47%, and 12% of the study period and 4%, 18%, and 78% of runoff, respectively. Runoff generally peaked in the spring due to snowmelt, while connectivity was highest in the peatlands in the fall months when precipitation exceeded evapotranspiration due to cooling temperatures. Warmer than average spring temperatures accelerated snowmelt rate faster than frost table thaw rate in the fen; this reduced the amount of meltwater that entered storage, increased drainage from bog to fen, and decreased overall connectivity in the unfrozen season. Cooler than average spring temperatures delayed bog connection and ground thaw; the late frost melt provided a source of water to the bogs after melt into the late spring and early summer. This study provides a basis for the modelling of peatland hydrological connectivity in the region in the drier conditions anticipated with climatic warming and regional resource extraction. Article in Journal/Newspaper Arctic Hudson Bay Wiley Online Library Arctic Canada Hudson Hudson Bay Hydrological Processes 36 4 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Patterned bog and fen peatlands, which dominate the landscape in the Hudson Bay Lowlands (HBL), act as important water storage and conveyance features in this region. In spite of their hydrological importance, there are currently no studies that define and characterize the thresholds of bog‐fen‐tributary hydrological connectivity in the HBL or their relation to seasonal and annual changes in water fluxes. To this end, hydrological (i.e., streamflow and groundwater levels) and meteorological (i.e., precipitation, snow depth, evapotranspiration, and temperature) data were collected at a 4.8 km 2 bog‐fen‐tributary complex between 2007 and 2018. Connectivity thresholds were best characterized into three states (disconnected, connected, and high activity) that incorporated 41%, 47%, and 12% of the study period and 4%, 18%, and 78% of runoff, respectively. Runoff generally peaked in the spring due to snowmelt, while connectivity was highest in the peatlands in the fall months when precipitation exceeded evapotranspiration due to cooling temperatures. Warmer than average spring temperatures accelerated snowmelt rate faster than frost table thaw rate in the fen; this reduced the amount of meltwater that entered storage, increased drainage from bog to fen, and decreased overall connectivity in the unfrozen season. Cooler than average spring temperatures delayed bog connection and ground thaw; the late frost melt provided a source of water to the bogs after melt into the late spring and early summer. This study provides a basis for the modelling of peatland hydrological connectivity in the region in the drier conditions anticipated with climatic warming and regional resource extraction. |
author2 |
Garfield Weston Foundation Global Water Futures |
format |
Article in Journal/Newspaper |
author |
Balliston, Nicole Price, Jonathan S. |
spellingShingle |
Balliston, Nicole Price, Jonathan S. Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
author_facet |
Balliston, Nicole Price, Jonathan S. |
author_sort |
Balliston, Nicole |
title |
Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
title_short |
Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
title_full |
Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
title_fullStr |
Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
title_full_unstemmed |
Beyond fill and spill: Hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the Hudson Bay Lowlands, Canada |
title_sort |
beyond fill and spill: hydrological connectivity in a sub‐arctic bog‐fen‐tributary complex in the hudson bay lowlands, canada |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1002/hyp.14575 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.14575 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/hyp.14575 |
geographic |
Arctic Canada Hudson Hudson Bay |
geographic_facet |
Arctic Canada Hudson Hudson Bay |
genre |
Arctic Hudson Bay |
genre_facet |
Arctic Hudson Bay |
op_source |
Hydrological Processes volume 36, issue 4 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.14575 |
container_title |
Hydrological Processes |
container_volume |
36 |
container_issue |
4 |
_version_ |
1802641578214293504 |