Kerbside DOAS measurements of air pollutants

Klaus Schäfer; Hong Ling; Stefan Legelli; Christoph Münkel; Stefan Emeis

doi:10.1117/12.2067326

17 October 2014 Kerbside DOAS measurements of air pollutants

Klaus Schäfer, Hong Ling, Stefan Legelli, Christoph Münkel, Stefan Emeis

Proceedings Volume 9242, Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII; 92420S (2014) https://doi.org/10.1117/12.2067326
Event: SPIE Remote Sensing, 2014, Amsterdam, Netherlands

Abstract

Emission sources as well as wind speed and direction and MLH are important factors which influence high air pollutant concentrations. This is generally known (Schäfer et al., 2006) but the detailed understanding of processes directing certain air pollutant concentrations like HCHO is not complete. To study these processes a long-term campaign in Augsburg, Germany, was performed since March 2012. The concentrations of NO, NO₂, O₃and HCHO, which were measured with a DOAS from OPSIS across a main traffic road and a nearby park area, are analysed. A ceilometer CL31 from Vaisala which is an eye-safe commercial mini-lidar system is applied to detect layering of the lower atmosphere continuously. Special software for this ceilometer with MATLAB provides routine retrievals of lower atmosphere layering from vertical profiles of laser backscatter data. Meteorological data were measured by a ground-based weather station at the measurement site as well as taken from monitoring data archives of the German National Meteorological Service (DWD), which are measured by radiosondes (Oberschleißheim). Correlation analyses are applied to show the coupling of temporal variations of NO, NO2, O3 and HCHO concentrations with temperature, mixing layer height and wind speed. HCHO which is emitted from both anthropogenic and biogenic sources is studied especially.

Citation Download Citation

Klaus Schäfer, Hong Ling, Stefan Legelli, Christoph Münkel, and Stefan Emeis "Kerbside DOAS measurements of air pollutants", Proc. SPIE 9242, Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII, 92420S (17 October 2014); https://doi.org/10.1117/12.2067326

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