Yanzi Yan¹, Stefan Olin¹, Magnus Persson², Petter Pilesjö¹, Feng Tian¹, Zhendong Wu¹, Minchao Wu³, Wenxin Zhang¹, Antje Gärtner¹ and Anders Ahlström¹, (1)Lund University, Department of physical geography and ecosystem science, Lund, Sweden, (2)Lund University, Water Resources Engineering, Faculty of Engineering, LTH, Lund, Sweden, (3)Swedish Meteorological and Hydrological Institute, Norrköping, Sweden