Simulation of long-term spatiotemporal variations in regional-scale groundwater recharge: contributions of a water budget approach in cold and humid climates
Université du Québec à Montréal, Département des
sciences de la Terre et de l'atmosphère and GEOTOP Research Center,
Pavillon Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Quebec, H3C 3P8 Canada
GRIL Research Center, Département de sciences biologiques,
Université de Montréal, Campus MIL, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec, H3C 3J7 Canada
Université du Québec à Montréal, Département des
sciences de la Terre et de l'atmosphère and GEOTOP Research Center,
Pavillon Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Quebec, H3C 3P8 Canada
GRIL Research Center, Département de sciences biologiques,
Université de Montréal, Campus MIL, C.P. 6128, Succursale Centre-Ville, Montréal, Quebec, H3C 3J7 Canada
Sylvain Gagné
Université du Québec à Montréal, Département des
sciences de la Terre et de l'atmosphère and GEOTOP Research Center,
Pavillon Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Quebec, H3C 3P8 Canada
Guillaume Meyzonnat
Université du Québec à Montréal, Département des
sciences de la Terre et de l'atmosphère and GEOTOP Research Center,
Pavillon Président-Kennedy, C.P. 8888, Succursale Centre-Ville, Montréal, Quebec, H3C 3P8 Canada
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This work demonstrates the relevance of using a water budget model to understand long-term transient and regional-scale groundwater recharge (GWR) in cold and humid climates where groundwater observations are scarce. Monthly GWR is simulated for 57 years on 500 m x 500 m cells in Canada (36 000 km2 area) with limited uncertainty due to a robust automatic calibration method. The increases in precipitation and temperature since the 1960s have not yet produced significant changes in annual GWR.
This work demonstrates the relevance of using a water budget model to understand long-term...
