Xiaojun Li, Jean-Pierre Wigneron, ISPA/INRAE, France; Frédéric Frappart, Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (LEGOS), France; Lei Fan, Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, France; Gabriëlle De Lannoy, KU Leuven, France; Alexandra G. Konings, Stanford University, France; Xiangzhuo Liu, Mengjia Wang, ISAP/INRAE, France; Roberto Fernandez-Moran, University of Valencia, Spain; Amen Al-Yaari, Sorbonne Université, UMR 7619 METIS, France; Hongliang Ma, State Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, China; Zanping Xing, Chongqing Jinfo Mountain Karst Ecosystem National Observation and Research Station, School of Geographical Sciences, Southwest University, China; Christophe Moisy, ISPA/INARE, France