Articles | Volume 25, issue 12
Research article
22 Dec 2021
Research article |  | 22 Dec 2021

Simulation of long-term spatiotemporal variations in regional-scale groundwater recharge: contributions of a water budget approach in cold and humid climates

Emmanuel Dubois, Marie Larocque, Sylvain Gagné, and Guillaume Meyzonnat

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Cited articles

Abdollahi, K., Bashir, I., Verbeiren, B., Harouna, M. R., Van Griensven, A., Huysmans, M., and Batelaan, O.: A distributed monthly water balance model: formulation and application on Black Volta Basin, Environ. Earth Sci., 76, 198,, 2017. 
Allen, D. M., Stahl, K., Whitfield, P. H., and Moore, R. D.: Trends in groundwater levels in British Columbia, Can. Water Resour. J., 39, 15–31,, 2014. 
Arctic Climate Impact Assessment: Impacts of a warming Arctic, Cambridge University Press, Cambridge, UK, New York, NY, 139 pp., 2004. 
Arnold, J. G., Kiniry, J. R., Srinivasan, R., Williams, J. R., Haney, E. B., and Neitsch, S. L.: Soil Water Assessment Tool – Input/Ouput documentation – Version 2012, Texas Water Resources Institute, College Station, Texas, 2012. 
Ashaolu, E. D., Olorunfemi, J. F., Ifabiyi, I. P., Abdollahi, K., and Batelaan, O.: Spatial and temporal recharge estimation of the basement complex in Nigeria, West Africa, J. Hydrol., 27, 100658,, 2020. 
Short summary
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.