); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. ); [EMAIL_ADDRESS] (Y.H. ); [EMAIL_ADDRESS] (Z.H.) [PERSON]  
1 Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China; [EMAIL_ADDRESS] (Z.Y. ); [EMAIL_ADDRESS] (H.Z. ); [EMAIL_ADDRESS] (Y.C. )of water use and allocation among different competing uses, especially in arid and semi-arid regions where water resources are scarce. Accurate ET can be measured in the field by different types of instruments including lysimeters, eddy covariance (EC), surface renewal, and flux variance systems [3; 4]. However, in situ observations are costly and only obtain the turbulent fluxes over small and homogeneous regions [5]. Remote sensing (RS) technology provides a cost-effective way to estimate ET at a variety of spatial and temporal scales [6]. Over the past few decades, many RS-based methods have been developed to estimate land surface flux and ET.