GCOM-A1 program I. - program overview

The Ozone and Pollution measuring Ultraviolet Spectrometer (OPUS) is a satellite-borne, nadir-looking ultraviolet spectrometer for measuring total column ozone, SO/sub 2/, aerosols, NO/sub 2/, HCHO, BrO, and OClO. It will be a NASDA's core instrument of GCOM-A1 (GCOM: Global Change Observation Mission) satellite to be launched in 2007. The GCOM program is designed to determine the climate trends. The GCOM-A1 will carry the SOFIS (Solar-occultation FTS for Inclined-orbit Satellite, developed by Environment Agency of Japan), and SWIFT, which measures stratospheric wind, provided by ESA/CSA.