GOME, a nadir-scanning ultraviolet and visible spectrometer for
global monitoring of atmospheric Ozone, was launched on-board ERS-2
in April 1995. Since summer 1996, ESA has been delivering to users
three-day GOME global observations of total ozone, nitrogen dioxide
and related cloud information, via CD-ROM and internet. A key
feature of GOME is its ability to detect other chemically active
atmospheric trace-gases as well as aerosol distribution.