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TitlePermafrost and hydrogeology interactions: subarctic Canadian Shield
AuthorMorse, P D; Spence, C
SourceGeoOttawa 2017, conference program, abstracts/GeoOttawa 2017, programme de la conférence, résumés; 2017 p. 211 (Open Access)
LinksOnline - En ligne (complete volume, pdf, 8.65 MB)
Year2017
Alt SeriesNatural Resources Canada, Contribution Series 20170091
PublisherCanadian Geotechnical Society (CGS) in collaboration with the Canadian National Chapter of the International Association of Hydrogeologists (IAH-CNC)
MeetingGeoOttawa 2017; Ottawa, ON; CA; October 1-4 octobre, 2017
Documentbook
Lang.English
Mediapaper; on-line; digital
File formatpdf (Adobe® Reader®)
ProvinceNorthwest Territories
NTS75K; 75L; 75M; 75N; 76D; 85I; 85J; 85K; 85N; 85O; 85P; 86A; 86B; 86C; 86G
AreaNorth Slave Region
Lat/Long WENS-116.5483 -108.3956 65.1942 62.0106
Subjectsenvironmental geology; surficial geology/geomorphology; hydrogeology; permafrost; ground ice; groundwater flow; climate; drainage systems; resource management; Canadian Shield; climate change; aquitards; drainage basins; environmental impact; water resources; northern studies; adaptation; mitigation
ProgramLand-based Infrastructure, Climate Change Geoscience
Released2017 09 22
AbstractThis paper reviews the interactions between permafrost (an aquitard) and water flow systems within discontinuous permafrost of the subarctic Canadian Shield, identifies knowledge gaps, and describes potential consequences of changing permafrost conditions as a result of climate warming. Discontinuous permafrost in this region is in thermal disequilibrium, with frozen ground occupying small but perhaps crucial locations along the drainage network. It is unclear how changes to permafrost-hydrogeology interactions will influence larger basin scales and cascade through subsequent environmental systems. We develop a conceptual framework of how non-linear changes to permafrost-hydrogeology interactions may progress due to climate warming. These changes have broad implications for water resources and affect northern environments, societies, and economies. Knowledge gained from conceptual framework development is the first step towards improving adaptation and mitigation measures to changing permafrost-hydrogeology interactions.
Summary(Plain Language Summary, not published)
This paper will review the interactions between permafrost and water flow systems within discontinuous permafrost of the sub-Arctic Canadian Shield, identify outstanding knowledge gaps, and describe potential consequences of changing permafrost conditions with climate warming. Permafrost and hydrogeological conditions are described first. Then a conceptual framework is developed for permafrost and hydrogeological interactions in a changing climate. The framework is intended to be the first step towards understanding how changing interactions between surface and subsurface water flow pathways with climate warming will affect northern environments, societies, and economies. This work may ultimately lead towards improving adaptation and mitigations measures to changing permafrost and hydrogeology interactions.
GEOSCAN ID301751