Jida Wang, Kansas State University, Manhattan, KS, United States, Chunqiao Song, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China, John T Reager II, Jet Propulsion Laboratory, Pasadena, CA, United States, Fangfang Yao, Exeter, United Kingdom, James S Famiglietti, Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, Canada, Yongwei Sheng, UCLA Geography, Los Angeles, CA, United States, Glen M MacDonald, UCLA, Los Angeles, CA, United States, Fanny Brun, Universite de Grenoble, Grenoble, France, Hannes Mueller Schmied, Goethe University Frankfurt, Senckenberg Biodiversity and Climate Research Centre, Institute of Physical Geography, Frankfurt am Main, Germany, Richard A Marston, Kansas State Univ, Manhattan, KS, United States and Yoshihide Wada, International Institute for Applied Systems Analysis, Laxenburg, Austria