Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 18
Articles | Volume 30, issue 18
https://doi.org/10.5194/hess-30-6057-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-6057-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 18
Research article
 | 
28 Sep 2026
Research article |  | 28 Sep 2026

Investigating terrestrial water storage change in a western Canadian river basin with GRACE/GRACE-FO and fully-integrated groundwater – surface water modelling

Stephanie Bringeland, Steven K. Frey, Georgia Fotopoulos, John Crowley, Shu Xu, Omar Khader, Hyung Eum, Babak Farjad, Andre R. Erler, and Anil Gupta

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Short summary
A HydroGeoSphere model which represents surface and groundwater is used to assess trends from 2002–2019 in water resources in Alberta, Canada and the driving factors behind these changes. Satellite-derived gravity data is compared to HydroGeoSphere model results; a strong correlation is identified. Components of water storage are assessed, namely groundwater, soil moisture, surface water, and snow. Fluctuations in water storage in Southern Alberta are linked to global climatic indices.
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