Characteristics and Impact Factors of Parameter Alpha in the Nonlinear Advection-Aridity Method for Estimating Evapotranspiration at Interannual Scale in the Loess Plateau

Haixiang Zhou1,2, Wenzhao Liu1 and Tingting Ning1,2, (1)State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China, (2)University of Chinese Academy of Sciences, Beijing, China