The hydrology of interconnected bog complexes in discontinuous permafrost terrains
Abstract In the zone of discontinuous permafrost, the cycling and storage of water within and between wetlands is poorly understood. The presence of intermittent permafrost bodies tends to impede and re‐direct the flow of water. In this region, the landscape is characterized by forested peat plateau...
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crwiley:10.1002/hyp.10604 2024-06-02T08:06:49+00:00 The hydrology of interconnected bog complexes in discontinuous permafrost terrains Connon, R. F. Quinton, W. L. Craig, J. R. Hanisch, J. Sonnentag, O. Canadian Space Agency Natural Sciences and Engineering Research Council of Canada W. Garfield Weston Foundation 2015 http://dx.doi.org/10.1002/hyp.10604 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.10604 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.10604 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 29, issue 18, page 3831-3847 ISSN 0885-6087 1099-1085 journal-article 2015 crwiley https://doi.org/10.1002/hyp.10604 2024-05-03T12:03:26Z Abstract In the zone of discontinuous permafrost, the cycling and storage of water within and between wetlands is poorly understood. The presence of intermittent permafrost bodies tends to impede and re‐direct the flow of water. In this region, the landscape is characterized by forested peat plateaus that are underlain by permafrost and are interspersed by permafrost‐free wetlands. These include channel fens which convey water to the basin outlet through wide, hydraulically rough channels and flat bogs which are typically thought to retain moisture inputs as storage. Field studies conducted at a peatland‐dominated landscape near Fort Simpson, Northwest Territories, Canada, indicate the presence of ephemeral drainage channels that form a cascade of connected bogs that ultimately discharges into a channel fen. Consequently, understanding bogs as dynamic transmitters of surface and subsurface flows, rather than simple storage regions, calls for further examination. Whether bogs act as either storage features or flow through features has a direct impact on the runoff contributing area in a basin. Here, two adjacent series of bog cascades were gauged over two consecutive years to determine spatial and temporal changes in effective runoff contributing areas. It was found that runoff varies significantly between two adjacent bog cascades with one cascade producing 125 mm of runoff over the 2‐year period, while the other yielded only 25 mm. The bog cascades are primarily active during the snowmelt season when moisture conditions are high; however flows can also be generated in response to large rain events. It is proposed that bog cascades operate under an ‘element threshold concept’ whereby in order for water to be transmitted through a bog, the depression storage capacity of that bog must first be satisfied. Our work indicates that whether bogs act as storage features or flow‐through features has a direct impact on the runoff contributing area in a basin. Neglecting to represent connected bogs as dynamic transmission ... Article in Journal/Newspaper Fort Simpson Northwest Territories Peat permafrost Wiley Online Library Canada Fort Simpson ENVELOPE(-121.320,-121.320,61.808,61.808) Northwest Territories Hydrological Processes 29 18 3831 3847 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract In the zone of discontinuous permafrost, the cycling and storage of water within and between wetlands is poorly understood. The presence of intermittent permafrost bodies tends to impede and re‐direct the flow of water. In this region, the landscape is characterized by forested peat plateaus that are underlain by permafrost and are interspersed by permafrost‐free wetlands. These include channel fens which convey water to the basin outlet through wide, hydraulically rough channels and flat bogs which are typically thought to retain moisture inputs as storage. Field studies conducted at a peatland‐dominated landscape near Fort Simpson, Northwest Territories, Canada, indicate the presence of ephemeral drainage channels that form a cascade of connected bogs that ultimately discharges into a channel fen. Consequently, understanding bogs as dynamic transmitters of surface and subsurface flows, rather than simple storage regions, calls for further examination. Whether bogs act as either storage features or flow through features has a direct impact on the runoff contributing area in a basin. Here, two adjacent series of bog cascades were gauged over two consecutive years to determine spatial and temporal changes in effective runoff contributing areas. It was found that runoff varies significantly between two adjacent bog cascades with one cascade producing 125 mm of runoff over the 2‐year period, while the other yielded only 25 mm. The bog cascades are primarily active during the snowmelt season when moisture conditions are high; however flows can also be generated in response to large rain events. It is proposed that bog cascades operate under an ‘element threshold concept’ whereby in order for water to be transmitted through a bog, the depression storage capacity of that bog must first be satisfied. Our work indicates that whether bogs act as storage features or flow‐through features has a direct impact on the runoff contributing area in a basin. Neglecting to represent connected bogs as dynamic transmission ... |
author2 |
Canadian Space Agency Natural Sciences and Engineering Research Council of Canada W. Garfield Weston Foundation |
format |
Article in Journal/Newspaper |
author |
Connon, R. F. Quinton, W. L. Craig, J. R. Hanisch, J. Sonnentag, O. |
spellingShingle |
Connon, R. F. Quinton, W. L. Craig, J. R. Hanisch, J. Sonnentag, O. The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
author_facet |
Connon, R. F. Quinton, W. L. Craig, J. R. Hanisch, J. Sonnentag, O. |
author_sort |
Connon, R. F. |
title |
The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
title_short |
The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
title_full |
The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
title_fullStr |
The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
title_full_unstemmed |
The hydrology of interconnected bog complexes in discontinuous permafrost terrains |
title_sort |
hydrology of interconnected bog complexes in discontinuous permafrost terrains |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/hyp.10604 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.10604 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.10604 |
long_lat |
ENVELOPE(-121.320,-121.320,61.808,61.808) |
geographic |
Canada Fort Simpson Northwest Territories |
geographic_facet |
Canada Fort Simpson Northwest Territories |
genre |
Fort Simpson Northwest Territories Peat permafrost |
genre_facet |
Fort Simpson Northwest Territories Peat permafrost |
op_source |
Hydrological Processes volume 29, issue 18, page 3831-3847 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.10604 |
container_title |
Hydrological Processes |
container_volume |
29 |
container_issue |
18 |
container_start_page |
3831 |
op_container_end_page |
3847 |
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1800751790035042304 |