European Geophysical Union. General Assembly 2015. Collection of Ground Biophysical Measurements in support of Copernicus Global Land Product Validation: The ImagineS database. Fernando Camacho (1), Roselyne Lacaze (2), Consuelo Latorre (1), Fred Baret (3), Fernando De la Cruz (4), Valerie Demarez (5), Carlos Di Bella (6), Javier García-Haro (7), M. Pat González-Dugo (8), Nataila Kussul (9), Cristian Mattar (10), Elizabeth Pattey (11), Enrica Nestola (12), Chris Rudiger (13), Igor Savin (14), Mirco Boschetti (15), Deborah Bossio (16), Anna Maria Castrignano (17), Marie Weiss (3), and Merez Zribi (5). Viena, Austria. Abril 2015.