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GOME-2
The GOME-2 (Global
Ozone Monitoring Experiment) are a series of three
identical instruments operating from the MetOp platforms. The GOME-2 instrument is a 4 channel UV/Vis
grating spectrometer observing the Earth's atmosphere in nadir viewing geometry.
It covers the wavelength region of 240 - 790 nm at moderate spectral resolution
of 0.2 - 0.4 nm and has a ground-pixel size of 80 x 40 km2 (240 x 40 km2 for the back scan)
over most of the globe. With its large swath, near global
coverage is achieved every day.
The GOME-2 is the successor of GOME but has better spatial resolution, global coverage and is expected to provide data for the next 15 years. Based on the experience with the GOME instrument, a number of improvements have been implemented that reduce the polarisation dependency of the instrument and problems with the diffuser used for irradiance measurements and facilitate more accurate radiometric calibration.
The first GOME-2 was launched on MetOp into a sun synchronous polar orbit in October 2006, and first preliminary spectra are available since March 2007. As the instrument is still in commissioning phase, please note the EUMETSAT disclaimer.
Using the DOAS method, atmospheric columns of NO2, BrO, SO2, H2O, HCHO, and OClO are retrieved from GOME-2 measurements at the IUP Bremen. Have a look at our GOME-2 first results page for first pictures and animations.
More on the instrument and the mission can be found on the EUMETSAT GOME-2 pages and the ESA GOME-2 pages.
There is also a volcanic SO2 alert based on GOME-2 measurements.