Articles | Volume 30, issue 7
https://doi.org/10.5194/hess-30-1951-2026
© 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-30-1951-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Technical note
| 
13 Apr 2026
Technical note |
| 13 Apr 2026
| 13 Apr 2026
Technical note: Including non-evaporative fluxes enhances the accuracy of isotope-based soil evaporation estimates
Han Fu
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
Ming Gao
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
Huijie Li
College of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China
Daniele Penna
Department of Agriculture, Food, Environment and Forestry, University of Florence, Florence, Italy
Forest Engineering Resources and Management Department, Oregon State University, Corvallis, USA
Junming Liu
College of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China
Bingcheng Si
College of Hydraulic and Civil Engineering, Ludong University, Yantai 264025, China
Department of Soil Science, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
Wenxiu Zou
CORRESPONDING AUTHOR
State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
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Short summary
We present ISONEVA, a new isotope-based framework for estimating soil water evaporation that explicitly accounts for dynamic soil water storage and non-evaporative fluxes. Numerical and field validations demonstrate that ISONEVA substantially improves evaporation estimates compared to traditional steady-state and non-steady-state approaches, and provides a robust basis for assessing long-term average evaporation to precipitation (E/P) ratios.
We present ISONEVA, a new isotope-based framework for estimating soil water evaporation that...
