ABSTRACT
Abstract The Earth Observing System (EOS), the major NASA contribution to the US Global Change Research Program, consists of a series of satellites with sensors designed to measure the crucial variables to monitor processes on the land, ocean, and atmosphere, a Data and Information System (EOSDIS) to analyse geophysical and biological products and distribute them to investigators, and a scientific research programme. EOSDIS begins this year with organization of existing data sets, with the goal of a useful, accessible system in 1994. The launch of the first EOS platform will occur in 1998, with launches every two years to provide a 15-year series of reliable scientific products.
