Articles | Volume 17, issue 8
https://doi.org/10.5194/gmd-17-3559-2024
https://doi.org/10.5194/gmd-17-3559-2024
Development and technical paper
 | 
02 May 2024
Development and technical paper |  | 02 May 2024

HGS-PDAF (version 1.0): a modular data assimilation framework for an integrated surface and subsurface hydrological model

Qi Tang, Hugo Delottier, Wolfgang Kurtz, Lars Nerger, Oliver S. Schilling, and Philip Brunner

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Cited articles

Abbaszadeh, P., Moradkhani, H., and Yan, H.: Enhancing hydrologic data assimilation by evolutionary Particle Filter and Markov Chain Monte Carlo, Adv. Water Resour., 111, 192–204, https://doi.org/10.1016/j.advwatres.2017.11.011, 2018. 
Ala-aho, P., Soulsby, C., Wang, H., and Tetzlaff, D.: Integrated surface-subsurface model to investigate the role of groundwater in headwater catchment runoff generation: A minimalist approach to parameterisation, J. Hydrol., 547, 664–677, https://doi.org/10.1016/j.jhydrol.2017.02.023, 2017. 
Alvarado, E. J., Raymond, J., Therrien, R., Comeau, F.-A., and Carreau, M.: Geothermal Energy Potential of Active Northern Underground Mines: Designing a System Relying on Mine Water, Mine Water Environ., 41, 1055–1081, https://doi.org/10.1007/s10230-022-00900-8, 2022. 
Anderson, M. P., Woessner, W. W., and Hunt, R. J.: Applied groundwater modeling: simulation of flow and advective transport, Academic press, ISBN 978-0-12-058103-0, 2015. 
Aquanty, I.: HydroGeoSphere: A three-dimensional numerical model describing fully-integrated subsurface and surface flow and solute transport, Theory manual, Aquanty Inc.: Waterloo, ON, Canada, 2020. 
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Short summary
We have developed a new data assimilation framework by coupling an integrated hydrological model HydroGeoSphere with the data assimilation software PDAF. Compared to existing hydrological data assimilation systems, the advantage of our newly developed framework lies in its consideration of the physically based model; its large selection of different assimilation algorithms; and its modularity with respect to the combination of different types of observations, states and parameters.
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