Frank Ahern received the A.B. degree in physics and mathematics from Cornell University, Ithaca, NY, USA, in 1966, and the Ph.D. degree in astrophysics from the University of Maryland, College Park, MD, USA, in 1972. After two years as a National Science and Engineering Research Council Fellow with the University of Toronto from 1972 to 1974, he joined the Canada Centre for Remote Sensing (CCRS), Ottawa, ON, Canada, as a Research Scientist in 1975, where he remained until 2000. His research activities included radiometric corrections of Landsat data, optical spectrometry, atmospheric corrections, and development of applications of remote sensing data for rangeland and forestry. In 2000, he left CCRS and founded TerreVista Earth Imaging, Brockville, ON, Canada, which has provided remote sensing research services to clients in Canada, the United States, and Europe. Dr. Ahern is a member of the Canadian Remote Sensing Society and was the Editor-in-Chief for the Canadian Journal of Remote Sensing from 1985 to 1990. He was the recipient of the Gold Medal of the Canadian Remote Sensing Society for 1991.