Mou Leong Tan is an Associate Professor with the Geoinformatic Unit at the Universiti Sains Malaysia (USM). He is also the Vice-President of Water Watch Penang, an NGO that aims to create a water-saving society in Malaysia. He currently serves as the academic editor of Plos One, and is on the editorial board of HydroResearch, Geografia, and the Journal of Asian Geography. Dr Tan received his PhD in remote sensing from the Universiti Teknologi Malaysia, with a focus on hydroclimatic modelling. He was awarded a postdoctoral fellowship at the National University of Singapore and held the position of a visiting scholar to Fudan University, China. He has served as the principal investigator for numerous national and international grants through the Newton-Natural Environment Research Council (NERC) fund, and the Ministry of Higher Education in Malaysia.