1. ISPA, Bordeaux Sciences Agro, INRA; Villenave d'Ornon France
2. Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ; Universite Paris-Saclay; Gif-sur-Yvette France
3. Institute on the Environment; University of Minnesota; St. Paul MN USA
4. Department of Earth System Science; University of California; Irvine CA USA