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.
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.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Sep 2026
Research article |
| 28 Sep 2026
| 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
Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Canada
Steven K. Frey
Aquanty Inc., Waterloo, Canada
Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, Canada
Georgia Fotopoulos
Department of Geological Sciences and Geological Engineering, Queen's University, Kingston, Canada
John Crowley
Canadian Geodetic Survey, Surveyor General Branch, Natural Resources Canada, Ottawa, Canada
Shu Xu
Aquanty Inc., Waterloo, Canada
Omar Khader
Aquanty Inc., Waterloo, Canada
Department of Water and Water Structural Engineering, Zagazig University, HFQM+872, Shaibet an Nakareyah, Zagazig, Al-Sharqia Governorate, 7120001, Egypt
Hyung Eum
Alberta Environment and Protected Areas, Government of Alberta, Calgary, Canada
Babak Farjad
Alberta Environment and Protected Areas, Government of Alberta, Calgary, Canada
Andre R. Erler
Aquanty Inc., Waterloo, Canada
Department of Geography and Environmental Management, University of Waterloo, Waterloo, Canada
Anil Gupta
Alberta Environment and Protected Areas, Government of Alberta, Calgary, Canada
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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.
A HydroGeoSphere model which represents surface and groundwater is used to assess trends from...
