Drs C Dardel, P Maisongrande and R Roca gave a series of presentations at the Academy to showcase where the development of the satellite observations of the water cycle stands. The conference was organized by Alain Perrier and Yves Brunet and gather the talks about the upcoming GPM constellation era (R. Roca), the multimission approach to the water budget (P Maisongrande) and the usage of satellite observations to diagnose and decipher the greening of the Sahel (C .Dardel). For more details follow the link (in french) http://www.academie-agriculture.fr/detail-seance_328.html