Lide Tian¹, Florian Ritterbusch², Ji-Qiang Gu³, Shui-Ming Hu⁴, Wei Jiang⁴, Zheng-Tian Lu⁴, Di Wang Jr⁵ and Guo-Min Yang⁴, (1)Yunnan University, Institute of international Rivers and Eco-security, Kunming, China, (2)Heidelberg University, Institute of Environmental Physics, Heidelberg, Germany, (3)Athens, GA, United States, (4)University of Science and Technology of China (USTC), Hefei, China, (5)Yunnan University, Institute of International Rivers and Eco-security, Kunming, China