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Hydrogeological processes in seasonally frozen northern latitudes: Understanding, gaps and challenges [Processus hydrogéologiques aux latitudes septentrionales gelées de façon saisonnière: Compréhension, lacunes et défis]
Year:
2013
Source of publication :
Hydrogeology Journal
Authors :
Nachshon, Uri
;
.
Volume :
21
Co-Authors:
Ireson, A.M., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
van der Kamp, G., Environment Canada, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Ferguson, G., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Nachshon, U., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Wheater, H.S., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Facilitators :
From page:
53
To page:
66
(
Total pages:
14
)
Abstract:
The groundwater regime in seasonally frozen regions of the world exhibits distinct behavior. This paper presents an overview of flow and associated heat and solute transport processes in the subsurface, from the soil/vadose zone, through groundwater recharge to groundwater discharge processes in these areas. Theoretical developments, field studies and model development are considered. An illustrative conceptual model of the system is presented. From a groundwater perspective, the dominant effect is the extent of hydraulic isolation between the water above and that below the near-surface frozen zone. The spatial and temporal occurrences of this isolation are seasonally variable and may also be modified under a future changing climate. A good qualitative conceptual understanding of the system has been developed over numerous decades of study. A major gap is the inability to effectively monitor processes in the field, particularly unfrozen water content during freezing conditions. Modeling of field-scale behavior represents a major challenge, even while physically based models continue to improve. It is suggested that progress can be made by combining well-designed field experiments with modeling studies. A major motivation for improving quantification of these processes derives from the need to better predict the impacts of a future changing climate. © 2012 Springer-Verlag Berlin Heidelberg.
Note:
Related Files :
Canada
cold region
Salinization
vadose zone
Show More
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More details
DOI :
10.1007/s10040-012-0916-5
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
French,English,Spanish
Editors' remarks:
ID:
19450
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:29
Scientific Publication
Hydrogeological processes in seasonally frozen northern latitudes: Understanding, gaps and challenges [Processus hydrogéologiques aux latitudes septentrionales gelées de façon saisonnière: Compréhension, lacunes et défis]
21
Ireson, A.M., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
van der Kamp, G., Environment Canada, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Ferguson, G., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Nachshon, U., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Wheater, H.S., Global Water Security Institute, University of Saskatchewan, 11 Innovation Boulevard, Saskatoon, SK, S7N 3H5, Canada
Hydrogeological processes in seasonally frozen northern latitudes: Understanding, gaps and challenges [Processus hydrogéologiques aux latitudes septentrionales gelées de façon saisonnière: Compréhension, lacunes et défis]
The groundwater regime in seasonally frozen regions of the world exhibits distinct behavior. This paper presents an overview of flow and associated heat and solute transport processes in the subsurface, from the soil/vadose zone, through groundwater recharge to groundwater discharge processes in these areas. Theoretical developments, field studies and model development are considered. An illustrative conceptual model of the system is presented. From a groundwater perspective, the dominant effect is the extent of hydraulic isolation between the water above and that below the near-surface frozen zone. The spatial and temporal occurrences of this isolation are seasonally variable and may also be modified under a future changing climate. A good qualitative conceptual understanding of the system has been developed over numerous decades of study. A major gap is the inability to effectively monitor processes in the field, particularly unfrozen water content during freezing conditions. Modeling of field-scale behavior represents a major challenge, even while physically based models continue to improve. It is suggested that progress can be made by combining well-designed field experiments with modeling studies. A major motivation for improving quantification of these processes derives from the need to better predict the impacts of a future changing climate. © 2012 Springer-Verlag Berlin Heidelberg.
Scientific Publication
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