Dr Marielle Gosset represented MT at the IVth Scientific Meeting of the Environmental Research Observatory (ORE) HYBAM on the large Amazonian rivers – Lima (Peru) 6-9 September 2011 (http://www.ore-hybam.org/index.php/eng/Documents/Reuniones/IVeme-Reunion-Scientifique-de-l-ORE-HYBAM). Collaborative perspective on the validation and exploitation of Megha-Tropiques rainfall products in the Amazonian area were discussed with HYBAM scientists and partners, in particular with the Peruvian Servicio Nacional de Meteorologia e Hidrologia (SENAMHI), and the Brazilian Instituto de Pesquisas Hidraulicas (IPH) and Agencia Nacional de Aguas (ANA).