Xavier Pons received the B.S. degree in biology, the M.S. degree in botany, and the Ph.D. degree in remote sensing and GIS from the Autonomous University of Barcelona, Cerdanyola del Vallès, Spain, in 1988, 1990, and, 1992, respectively. His main work has been done in radiometric and geometric corrections of satellite imagery, in cartography of ecological and forest parameters from airborne sensors, in studies of the spectral response of Mediterranean vegetation, and in GIS development, both in terms of data structure and organization and in terms of software writing (MiraMon). He has recently worked in descriptive climatology models, in modeling forest fire hazards, and in analysis of landscape changes, water usage, and snow coverage from long series of satellite images. He is currently working in the implications of image compression on remote sensing. He is currently a Full Professor with the Department of Geography, Autonomous University of Barcelona, and coordinates research activities in GIS and remote sensing with the Centre for Ecological Research and Forestry Applications, Cerdanyola del Vallès. Prof. Pons is a member of the GRUMETS (Research Group of Methods in Remote Sensing and GIS).