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Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada

Authors

Lamine Boumaiza

Julien Walter

Romain Chesnaux

Lambert

Madan Kumar Jha

Andrea Brookfield

Okke Batelaan

Paulo

Nour?Eddine Laftouhi

Christine Stumpp



Abstract

Proper knowledge of potential groundwater recharge (PGR) and its spatiotemporal distribution are essential for sustainable groundwater management, especially within the context of climate change. Here, a robust GIS-based water budget framework was developed to estimate PGR at a regional scale and map its spatial distribution. This framework is demonstrated over the Saguenay-Lac-Saint-Jean region (13 200 km2) of Quebec (Canada). The PGR mapping process was based on a model incorporating water budget components. The vertical inflows (VI) include water amounts from rainfall and snowmelt, whereby the latter was assessed using HYDROTEL model. VI were combined with the maximum and minimum temperatures to estimate actual evapotranspiration (AET), while the surface runoff (RuS) was assessed using the curve number method. Field observations of annual variation in temperatures and the water budget components, over a period of 100 years (1910–2009), were used to provide a comprehensive overview of the effects of climate change on PGR. The last 10 years of the observation period (i.e., 2000–2009) indicate that 6% of the study area has PGR rates of 35%–50%. PGR rates of 20%–35% occur in 58% of the study area, while 36% have PGR of 5%–20%. The trend analysis of temperature time series reveals an average of 1.1 ± 0.6°C increase over 100 years. Also, an increase in the water budget components is observed. Despite the increasing trends of RuS and AET, PGR still showed an increasing trend with an average increase of 0.7 ± 0.4 mm/year over the past 100 years. This observation indicates that the increase in VI was enough to compensate for the increases in AET and RuS. This finding of an increasing PGR in the study area provides useful information for future studies focusing on predicting long-term PGR evolution and for the development of efficient long-term groundwater management strategies.

Citation

Boumaiza, L., Walter, J., Chesnaux, R., Lambert, M., Jha, M. K., Wanke, H., …Stumpp, C. (2022). Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada. Hydrological Processes, 36(3), https://doi.org/10.1002/hyp.14526

Journal Article Type Article
Acceptance Date Feb 14, 2022
Online Publication Date Feb 17, 2022
Publication Date 2022-03
Deposit Date Mar 31, 2022
Publicly Available Date Feb 18, 2023
Journal Hydrological Processes
Print ISSN 0885-6087
Electronic ISSN 1099-1085
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 36
Issue 3
Article Number e14526
DOI https://doi.org/10.1002/hyp.14526
Keywords Water Science and Technology
Public URL https://uwe-repository.worktribe.com/output/9094226
Additional Information Received: 2021-10-04; Accepted: 2022-02-14; Published: 2022-02-17

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Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada (21.5 Mb)
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Copyright Statement
This is the peer reviewed version of the following article: Boumaiza, L., Walter, J., Chesnaux, R., Lambert, M., Jha, M. K., Wanke, H., …Stumpp, C. (2022). Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay‐Lac‐Saint‐Jean region, Canada. Hydrological Processes, 36(3), https://doi.org/10.1002/hyp.14526, which has been published in final form at https://doi.org/10.1002/hyp.14526. <br /> <br /> This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. <br /> <br /> The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.


Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay-Lac-Saint-Jean region, Canada (3 Mb)
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Publisher Licence URL
http://www.rioxx.net/licenses/all-rights-reserved

Copyright Statement
This is the peer reviewed version of the following article: Boumaiza, L., Walter, J., Chesnaux, R., Lambert, M., Jha, M. K., Wanke, H., …Stumpp, C. (2022). Groundwater recharge over the past 100 years: Regional spatiotemporal assessment and climate change impact over the Saguenay‐Lac‐Saint‐Jean region, Canada. Hydrological Processes, 36(3), https://doi.org/10.1002/hyp.14526, which has been published in final form at https://doi.org/10.1002/hyp.14526.<br /> <br /> This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified.<br /> <br /> The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.





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