The GOME (Global Ozone Monitoring Experiment) instrument is a 4 channel UV/Vis grating spectrometer observing the earth's atmosphere in nadir viewing geometry. It has a moderate spectral resolution of 0.2 - 0.4 nm and a ground-pixel size of 320 x 40 km2 (960 x 40 km2 for the back scan). With the large swath, global coverage is achieved every three days at the equator and earlier at higher latitudes.
GOME was launched on ERS-2 into a sun synchronous polar orbit in April 1995, and delivered data since autumn of that year. As a result of aging problems of the ERS-2 platform, pointing accuracy was reduced since February 2001. This affects mainly the solar measurements of GOME, decreasing the frequency of good solar irradiance measurements and thereby increasing noise in some products. Since June 2003, a permanent failure of the last tape recorder on ERS-2 limited GOME coverage to areas where direct downlink of data is possible. ERS-2 was decomissioned in July 2011, ending the GOME data series.
Using the DOAS method, atmospheric columns of NO2, BrO, SO2, HCHO, and OClO are retrieved from GOME measurements at the IUP Bremen. Use the navigation on the left to browse through the description of the individual products.
More on the instrument and the mission can be found on the IUP GOME page. Daily images for many products based on GOME near real time data are available on the IUP GOME NRT page. For information on the satellite and other ERS-2 instruments check the ESA ERS_2 page. More GOME scientific products can be found at the Institute of Environmental Physics, University of Heidelberg and on the TEMIS web site.
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