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 Liu3 and Tingting Ning3,4, (1)Northwest Normal University, Lanzhou, China, (2)UCAS University of Chinese Academy of Sciences, Beijing, China, (3)State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, China, (4)University of Chinese Academy of Sciences, Beijing, China