Adaptive probabilistic collocation based Kalman filter for unsaturated flow problem

Jun Man1, Weixuan Li2, Lingzao Zeng1 and Laosheng Wu3, (1)Zhejiang University, College of Environmental and Resource Sciences, Hangzhou, China, (2)Pacific Northwest National Laboratory, Richland, United States, (3)University of California, Department of Environmental Sciences, Riverside, CA, United States