1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
2. State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environment and Engineering Research Institute, Chinese Academy Sciences, Beijing, China
3. LSCE, UMR 8212 CEA/CNRS/UVSQ – IPSL, Gif-sur-Yvette, France
4. LMD/IPSL, CNRS, UPMC, Paris, France