Berlin 2014 – wissenschaftliches Programm
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UP: Fachverband Umweltphysik
UP 3: Atmosphäre - Spurengase
UP 3.2: Vortrag
Dienstag, 18. März 2014, 15:00–15:15, MAG 100
Airborne measurements of NO2 shipping emissions with an imaging DOAS instrument — •Andreas Meier1, Anja Schönhardt1, Andreas Richter1, André Seyler1, Thomas Ruhtz2, Carsten Lindemann2, and John P. Burrows1 — 1Institut für Umweltphysik, Universität Bremen, Bremen, Germany — 2Institut für Weltraumwissenschaften, Freie Universität Berlin, Berlin, Germany
NOx (NO and NO2) play a key role in tropospheric chemistry and affect human health and the environment. Shipping emissions contribute substantially to the global emissions of anthropogenic NOx. Due to globalization and increased trade volume, the relative importance emissions from ships gain even more importance. The Airborne imaging DOAS instrument for Measurements of Atmospheric Pollution (AirMAP), developed at IUP Bremen, has been used to perform measurements of NO2 in the visible spectral range. The observations allow the determination of spatial distributions of column densities of NO2 below the aircraft. Airborne measurements were performed over Northern Germany during the NOSE (NO2 from Shipping Emissions) campaign in August 2013. The focus of the campaign activities was on shipping emissions, but NO2 over cities and power plants has been measured as well. The measurements have a spatial resolution below the order of 100 × 30 m2, and they reveal the large spatial variability of NO2 and the evolution of NO2 plumes behind point sources. Shipping lanes as well as plumes of individual ships are detected by the AirMAP instrument. In this study, first results from the NOSE campaign are presented for selected measurement areas.