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UP: Fachverband Umweltphysik
UP 5: Postersession
UP 5.13: Poster
Dienstag, 14. März 2017, 16:40–18:10, GW2 B3010
Results of the imaging DOAS instrument IMPACT at CINDI-2 and comparison to MAX-DOAS-observations — •Mareike Ostendorf1, Enno Peters1, Anja Schönhardt1, Andreas Richter1, André Seyler1, Folkard Wittrock1, Stefan Schreier2, Mihalis Vrekoussis1,3, and John P. Burrows1 — 1Institut für Umweltphysik (IUP), Universität Bremen, Bremen, Deutschland — 2Institut für Meteorologie, Universität für Bodenkultur Wien (BOKU), Wien, Österreich — 3Zentrum für Marine Umweltwissenschaften (MARUM), Bremen, Deutschland
This contribution presents and discusses the new ground-based instrument IMPACT (Novel Imaging MaPper for Atmospheric observaTions) developed at the IUP Bremen. The instrument uses Differential Optical Absorption Spectroscopy (DOAS) to measure trace gas column amounts, e.g. of NO2. The special characteristic of the imaging DOAS instrument is the capability to measure in 50 vertical viewing directions (elevation angles) simultaneously. By combination with a pan-tilt head for azimuthal movements, complete hemispheric scans are achieved within a short time. See also accompanying talk by E. Peters.
The measurement and retrieval procedure results in images of distributions of NO2 and O4, which yield information about local sources, transport and diurnal variations.
The poster focuses on results and comparisons to MAX-DOAS measurements, which were obtained during the CINDI-2 campaign in summer 2016 in Cabauw, Netherlands.