Articles | Volume 26, issue 18
https://doi.org/10.5194/hess-26-4757-2022
© Author(s) 2022. 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-26-4757-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Leveraging sap flow data in a catchment-scale hybrid model to improve soil moisture and transpiration estimates
Karlsruhe Institute of Technology (KIT), Institute of Water and River Basin Management – Hydrology, Karlsruhe, Germany
Maoya Bassiouni
Department of Crop Production Ecology, Swedish University of
Agricultural Sciences, Uppsala, Sweden
Department of Environmental Science, Policy and Management,
University of California, Berkeley, CA, USA
Anke Hildebrandt
Helmholtz Centre for Environmental Research – UFZ, Department
Computational of Hydrosystems, Leipzig, Germany
Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research – Atmospheric Trace Gases and Remote Sensing, Karlsruhe, Germany
Friedrich Schiller University Jena, Institute of Geoscience, Jena,
Germany
Sibylle K. Hassler
Karlsruhe Institute of Technology (KIT), Institute of Water and River Basin Management – Hydrology, Karlsruhe, Germany
Karlsruhe Institute of Technology (KIT), Institute of Meteorology and Climate Research – Atmospheric Trace Gases and Remote Sensing, Karlsruhe, Germany
Erwin Zehe
Karlsruhe Institute of Technology (KIT), Institute of Water and River Basin Management – Hydrology, Karlsruhe, Germany
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Cited
13 citations as recorded by crossref.
- HESS Opinions: Towards a common vision for the future of hydrological observatories P. Nasta et al. https://doi.org/10.5194/hess-29-465-2025
- A Modeling Approach to Stomatal Conductance under Different Vapor Pressure Conditions N. Martínez-Jeraldo et al. https://doi.org/10.1007/s11538-026-01676-6
- Reconstruction of the dynamics of sap-flow timeseries of a beech forest using a machine learning approach J. Kabala et al. https://doi.org/10.1016/j.agrformet.2024.110379
- Physics-augmented deep learning models for improving evapotranspiration estimation in global land regions B. Liu et al. https://doi.org/10.1016/j.agwat.2025.109634
- Improving latent heat flux prediction via enhanced cross-variable interaction and temporal dependence learning Q. Li et al. https://doi.org/10.1016/j.jhydrol.2026.135388
- Environmental Factors Driving the Transpiration of a Betula platyphylla Sukaczev Forest in a Semi-arid Region in North China during Different Hydrological Years Y. Wu et al. https://doi.org/10.3390/f13101729
- Enhancing streamflow estimation by integrating a data-driven evapotranspiration submodel into process-based hydrological models X. Lian et al. https://doi.org/10.1016/j.jhydrol.2023.129603
- Environmental drivers and machine-learning analysis of grapevine sap flow on hilly slopes in Southwest China M. Tian et al. https://doi.org/10.1016/j.agwat.2026.110743
- Revealing seasonal plasticity of whole-plant hydraulic properties using sap-flow and stem water-potential monitoring Z. Zhang et al. https://doi.org/10.5194/hess-29-3975-2025
- Hybrid residual deep learning models with physical knowledge for improving plant transpiration estimation B. Liu et al. https://doi.org/10.1016/j.compag.2023.108135
- Estimating the transpiration of kiwifruit using an optimized canopy resistance model based on the synthesis of sunlit and shaded leaves Z. Li et al. https://doi.org/10.1016/j.agwat.2024.109193
- Multi-factor Fire Susceptibility Index (FSI) in Hungary: a data-driven approach using remotely sensed data for peri-urban and forested landscapes A. Agustiyara et al. https://doi.org/10.1007/s40808-026-02785-w
- Annual tree growth and transpiration records may not indicate drought avoidance: Working hypotheses to manage forest drought stress in mixed species stands J. Knighton & R. Fahey https://doi.org/10.1016/j.agrformet.2026.111251
13 citations as recorded by crossref.
- HESS Opinions: Towards a common vision for the future of hydrological observatories P. Nasta et al. https://doi.org/10.5194/hess-29-465-2025
- A Modeling Approach to Stomatal Conductance under Different Vapor Pressure Conditions N. Martínez-Jeraldo et al. https://doi.org/10.1007/s11538-026-01676-6
- Reconstruction of the dynamics of sap-flow timeseries of a beech forest using a machine learning approach J. Kabala et al. https://doi.org/10.1016/j.agrformet.2024.110379
- Physics-augmented deep learning models for improving evapotranspiration estimation in global land regions B. Liu et al. https://doi.org/10.1016/j.agwat.2025.109634
- Improving latent heat flux prediction via enhanced cross-variable interaction and temporal dependence learning Q. Li et al. https://doi.org/10.1016/j.jhydrol.2026.135388
- Environmental Factors Driving the Transpiration of a Betula platyphylla Sukaczev Forest in a Semi-arid Region in North China during Different Hydrological Years Y. Wu et al. https://doi.org/10.3390/f13101729
- Enhancing streamflow estimation by integrating a data-driven evapotranspiration submodel into process-based hydrological models X. Lian et al. https://doi.org/10.1016/j.jhydrol.2023.129603
- Environmental drivers and machine-learning analysis of grapevine sap flow on hilly slopes in Southwest China M. Tian et al. https://doi.org/10.1016/j.agwat.2026.110743
- Revealing seasonal plasticity of whole-plant hydraulic properties using sap-flow and stem water-potential monitoring Z. Zhang et al. https://doi.org/10.5194/hess-29-3975-2025
- Hybrid residual deep learning models with physical knowledge for improving plant transpiration estimation B. Liu et al. https://doi.org/10.1016/j.compag.2023.108135
- Estimating the transpiration of kiwifruit using an optimized canopy resistance model based on the synthesis of sunlit and shaded leaves Z. Li et al. https://doi.org/10.1016/j.agwat.2024.109193
- Multi-factor Fire Susceptibility Index (FSI) in Hungary: a data-driven approach using remotely sensed data for peri-urban and forested landscapes A. Agustiyara et al. https://doi.org/10.1007/s40808-026-02785-w
- Annual tree growth and transpiration records may not indicate drought avoidance: Working hypotheses to manage forest drought stress in mixed species stands J. Knighton & R. Fahey https://doi.org/10.1016/j.agrformet.2026.111251
Saved (final revised paper)
Latest update: 12 Sep 2026
Short summary
In this study, we combine a deep-learning approach that predicts sap flow with a hydrological model to improve soil moisture and transpiration estimates at the catchment scale. Our results highlight that hybrid-model approaches, combining machine learning with physically based models, are a promising way to improve our ability to make hydrological predictions.
In this study, we combine a deep-learning approach that predicts sap flow with a hydrological...