Frédéric Baup received the M.S. degree in microwave and optical telecommunications and the Ph.D. degree in SAR remote sensing from the University Paul Sabatier, Toulouse, France, in 2003 and 2007, respectively. Since 2008, he has been a Researcher in microwave remote sensing with the Centre d'Etudes Spatiales de la BIOsphère Laboratory, Auch, France. His research interests include microwave remote sensing applied to land surfaces and SAR image analysis to monitor spatio-temporal variations of soil (moisture and roughness) and vegetation (biomass) properties over agricultural or natural areas. His education interests include physics and remote sensing sciences. He is involved in the development of the inversion method for the estimation of surface parameters (soil and vegetation) from multifrequency microwave data (X-, C-, and L-band), the combination of optical, thermal, and microwave satellite data to improve the land surface monitoring, and in the assimilation of satellite data into agrometeorological models.