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UP: Fachverband Umweltphysik
UP 7: Poster: Satellitengestützte Messungen
UP 7.1: Poster
Tuesday, March 11, 2008, 16:30–19:00, Poster B1
Satellite Observations of NO2 Export from South Africa — •Andreas Richter, Andreas Heckel, Joana Leitão Alexandre, and John P. Burrows — Institute of Environmental Physics, University of Bremen, Bremen, Germany
The Highvelt industrial area in South Africa is the largest single NOx source in the Southern Hemisphere. Its signature is prominent in satellite measurements of tropospheric NO2, and individual events of long range transport of NOx from this source have been identified and discussed in earlier studies.
In this work, we use data from the new GOME-2 instrument to quantify the amount of NOx exported from this source. This is facilitated by the nearly daily coverage of GOME-2 in combination with trajectory calculations. The results show that long-range transport of NOx from South Africa occurs on a regular basis and that the impact can be detected several thousand kilometres downwind.