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UP: Umweltphysik

UP 7: Poster: Atmosph
ärische Spurengase und Aerosole: Instrumentelles

UP 7.3: Poster

Tuesday, March 8, 2005, 10:15–12:15, Poster TU HTF

Measurements of NO2 and HCHO in Northern Italy with the AMAXDOAS Instrument — •Klaus-Peter Heue¹, Marco Bruns², John P. Burrows², Ulrich Platt¹, Andreas Richter², Bing Chao Song¹, Thomas Wagner¹, Ping Wang², and Irene Pundt¹ — ¹Institut für Umweltphysik, Universität Heidelberg, INF 229, D-69120 Heidelberg — ²Institut für Umweltphysik, Universität Bremen, Otto-Hahn-Allee 1, D-28359 Bremen

The AMAXDOAS-instrument is a specially designed Multi Axis DOAS instrument for airborne measurements. In August 2002 and September 2003 the instrument was installed on a Partenavia 68 in the framework of the European FORMAT project. During each campaign 10 flights were performed in greater Milano and the Po-Valley. The typical flight altitude was within or just above the boundary layer. Here we present data from both campaigns.

In 2002 we focused on the HCHO distribution around Milano. The different viewing directions allow us to retrieve profiles of both aerosol and HCHO from the observed SCDs of O4 and HCHO.

During the second campaign it was possible to derive NO2 emission rates of the large power plant Sermide (south east of Mantova). Downwind of the power plant the emission plume had been crossed three times. As we measured forward and backward with several elevations, a 2 dimensional reconstruction of the plume is possible allowing a detailed analysis of the emissions.