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Full-Text Articles in Physical Sciences and Mathematics
The Role Of Channel Fens In Permafrost Degradation Induced Changes In Peatland Discharge At Scotty Creek, Nt, Lindsay Elena Stone
The Role Of Channel Fens In Permafrost Degradation Induced Changes In Peatland Discharge At Scotty Creek, Nt, Lindsay Elena Stone
Theses and Dissertations (Comprehensive)
Permafrost degradation in the peat-rich southern fringe of the discontinuous permafrost zone is producing substantial changes to land cover with concomitant expansion of permafrost-free wetlands (bogs and fens) and shrinkage of forest supported by permafrost peat plateaus. Predicting discharge from headwater basins in this region depends on understanding and numerically representing the interactions between storage and discharge within and between the major land cover types, and how these interactions are changing. To better understand the implications of land cover change on wetland discharge, the hydrological behaviour of a channel fen in the headwaters of Scotty Creek, Northwest Territories, Canada, dominated …
Permafrost Thaw Induced Changes To Runoff Generation And Hydrologic Connectivity In Low-Relief, Discontinuous Permafrost Terrains, Ryan Connon
Theses and Dissertations (Comprehensive)
Recent climate warming in northwestern Canada is occurring at an unprecedented rate in recorded history and has resulted in the widespread thaw of permafrost. Where present, permafrost exerts a significant control on local hydrology, and disappearance of permafrost threatens to change the hydrology of northern basins. In the peatlands that characterise the southern distribution of permafrost in low relief terrain, permafrost takes the form of forested peat plateaus and is interspersed by permafrost-free wetlands (i.e. channel fens and flat bogs). Previous field studies have found that channel fens serve as the drainage network and route water to the basin …