Concentration of trace gases in the lower troposphere,simultaneously recorded at neighboring alpine stations Part III: Sulfur dioxide,nitrogen dioxide,nitric oxide |
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| Authors: | Dr R Reiter Dr R Sladkovic Dr H -J Kanter |
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| Institution: | (1) Present address: Fraunhofer-Institute for Atmospheric Environmental Research, Fritz-Müller-Strasse 54, D-8100 Garmisch-Partenkirchen, Germany |
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| Abstract: | Summary The importance of representative and long-term recordings of the trace gases SO2, NO
x
, and NO is explained. Recordings taken under different background conditions and, moreover, simultaneously at neighboring mountain stations, together with other meteorological parameters, are of special interest.The recording stations for the determination of the mentioned gases (a valley station at 740 m a.s.l., a nearby mountain station at 1780 m a.s.l.), the measuring methods, calibration procedures, and  zero-air supply are described.The main part deals with the representation of consistent data of trace gases obtained at the two stations (NO only in the valley floor). Special attention was given not only to longterm trends but also to the seasonal and diurnal variations, and to the dependence of the gas concentrations on meteorological parameters. Only on the basis of such a parameterization, the time variations become understandable and the causes can be explained as well as possible. Finally, correlations between the concentrations of the different gas components are shown.With 15 Figures |
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