Ad Stoffelen received an MSc degree in physics from the Technical University of Eindhoven, Eindhoven, the Netherlands, in 1987, and a PhD degree in meteorology on scatterometry from the University of Utrecht, Utrecht, the Netherlands, in 1998. He is currently with the Royal Netherlands Meteorological Institute, De Bilt, The Netherlands, and responsible for the ASCAT wind products. His research interests include European Space Agency ADM-Aeolus Doppler Wind Lidar mission.