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UP: Fachverband Umweltphysik

UP 1: Atmosphere - Trace Gases

UP 1.1: Invited Talk

Tuesday, March 8, 2016, 10:15–10:45, H41

Observations of tropospheric NO2 at different scales — •Andreas Richter, Andreas Hilboll, Andreas C. Meier, Anja Schönhardt, Stefan F. Schreier, Enno Peters, Folkard Wittrock, and John P. Burrows — Institut für Umweltphysik, Universität Bremen, Deutschland

Nitrogen oxides are important players in the chemistry of the atmosphere, both in the troposphere and the stratosphere. As they are emitted by many anthropogenic activities, they are often used as tracer of pollution. Having a short atmospheric life time, nitrogen oxides are mainly found close to their sources.

Nitrogen dioxide can be measured by UV/visible remote sensing from satellite, aircraft and from the ground. These different measurements average over different temporal and spatial scales, leading to different but complimentary views of the distribution of NO₂ in the polluted troposphere. Comparing and combining these data sources provides unique information on the variability of this species and what is needed for an observing system to obtain appropriate measurements to understand the behaviour of NO₂ in the troposphere.

In this presentation, satellite data from GOME2 and OMI will be linked to airborne high resolution NO₂ maps from the AirMap instrument, ground-based MAX-DOAS observations at multiple azimuth angles and car-DOAS measurements, all in polluted locations.