Articles | Volume 26, issue 18 
            
                
                    
            
            
            https://doi.org/10.5194/hess-26-4603-2022
                    © 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-26-4603-2022
                    © Author(s) 2022. This work is distributed under 
the Creative Commons Attribution 4.0 License.
                the Creative Commons Attribution 4.0 License.
Evaluation of water flux predictive models developed using eddy-covariance observations and machine learning: a meta-analysis
Haiyang Shi
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Department of Geography, Ghent University, Ghent 9000, Belgium
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Geping Luo
CORRESPONDING AUTHOR
                                            
                                    
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Ürümqi, 830011, China
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Olaf Hellwich
CORRESPONDING AUTHOR
                                            
                                    
                                            Department of Computer Vision & Remote Sensing, Technische Universität Berlin, 10587 Berlin, Germany
                                        
                                    Mingjuan Xie
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Department of Geography, Ghent University, Ghent 9000, Belgium
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Chen Zhang
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    Yu Zhang
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    Yuangang Wang
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    Xiuliang Yuan
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    Xiaofei Ma
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    Wenqiang Zhang
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Department of Geography, Ghent University, Ghent 9000, Belgium
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Alishir Kurban
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Research Center for Ecology and Environment of Central Asia, Chinese Academy of Sciences, Ürümqi, 830011, China
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Philippe De Maeyer
                                            State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Ürümqi, Xinjiang, 830011, China
                                        
                                    
                                            College of Resources and Environment, University of the Chinese Academy of Sciences, 19 (A) Yuquan Road, Beijing, 100049, China
                                        
                                    
                                            Department of Geography, Ghent University, Ghent 9000, Belgium
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
                                    Tim Van de Voorde
                                            Department of Geography, Ghent University, Ghent 9000, Belgium
                                        
                                    
                                            Sino-Belgian Joint Laboratory for Geo-Information, Ghent 9000, Belgium
                                        
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                            Cited
10 citations as recorded by crossref.
- Physically-constrained evapotranspiration models with machine learning parameterization outperform pure machine learning: Critical role of domain knowledge Y. Kim et al. 10.1371/journal.pone.0328798
 - Revisiting and attributing the global controls over terrestrial ecosystem functions of climate and plant traits at FLUXNET sites via causal graphical models H. Shi et al. 10.5194/bg-20-2727-2023
 - Integrating Load‐Cell Lysimetry and Machine Learning for Prediction of Daily Plant Transpiration S. Friedman et al. 10.1111/pce.70222
 - Benchmarking transferable evapotranspiration against physical models: Uncertainty analysis of machine learning quasi-observation across Central Asia’s plant functional types and climate zones F. Ochege et al. 10.1016/j.ejrh.2025.102849
 - Estimation of Reference Crop Evapotranspiration in the Yellow River Basin Based on Machine Learning and Its Regional and Drought Adaptability Analysis J. Zhao et al. 10.3390/agronomy15051237
 - Comparing the use of all data or specific subsets for training machine learning models in hydrology: A case study of evapotranspiration prediction H. Shi et al. 10.1016/j.jhydrol.2023.130399
 - Extrapolability improvement of machine learning-based evapotranspiration models via domain-adversarial neural networks H. Shi & X. Cai 10.1016/j.envsoft.2025.106383
 - Global dryland aridity changes indicated by atmospheric, hydrological, and vegetation observations at meteorological stations H. Shi et al. 10.5194/hess-27-4551-2023
 - Monitoring of carbon-water fluxes at Eurasian meteorological stations using random forest and remote sensing M. Xie et al. 10.1038/s41597-023-02473-9
 - Artificial intelligence and Eddy covariance: A review A. Lucarini et al. 10.1016/j.scitotenv.2024.175406
 
10 citations as recorded by crossref.
- Physically-constrained evapotranspiration models with machine learning parameterization outperform pure machine learning: Critical role of domain knowledge Y. Kim et al. 10.1371/journal.pone.0328798
 - Revisiting and attributing the global controls over terrestrial ecosystem functions of climate and plant traits at FLUXNET sites via causal graphical models H. Shi et al. 10.5194/bg-20-2727-2023
 - Integrating Load‐Cell Lysimetry and Machine Learning for Prediction of Daily Plant Transpiration S. Friedman et al. 10.1111/pce.70222
 - Benchmarking transferable evapotranspiration against physical models: Uncertainty analysis of machine learning quasi-observation across Central Asia’s plant functional types and climate zones F. Ochege et al. 10.1016/j.ejrh.2025.102849
 - Estimation of Reference Crop Evapotranspiration in the Yellow River Basin Based on Machine Learning and Its Regional and Drought Adaptability Analysis J. Zhao et al. 10.3390/agronomy15051237
 - Comparing the use of all data or specific subsets for training machine learning models in hydrology: A case study of evapotranspiration prediction H. Shi et al. 10.1016/j.jhydrol.2023.130399
 - Extrapolability improvement of machine learning-based evapotranspiration models via domain-adversarial neural networks H. Shi & X. Cai 10.1016/j.envsoft.2025.106383
 - Global dryland aridity changes indicated by atmospheric, hydrological, and vegetation observations at meteorological stations H. Shi et al. 10.5194/hess-27-4551-2023
 - Monitoring of carbon-water fluxes at Eurasian meteorological stations using random forest and remote sensing M. Xie et al. 10.1038/s41597-023-02473-9
 - Artificial intelligence and Eddy covariance: A review A. Lucarini et al. 10.1016/j.scitotenv.2024.175406
 
Latest update: 03 Nov 2025
Short summary
            There have been many machine learning simulation studies based on eddy-covariance observations for water flux and evapotranspiration. We performed a meta-analysis of such studies to clarify the impact of different algorithms and predictors, etc., on the reported prediction accuracy. It can, to some extent, guide future global water flux modeling studies and help us better understand the terrestrial ecosystem water cycle.
            There have been many machine learning simulation studies based on eddy-covariance observations...