Title: Field measurements within a quarter of a city including a street canyon to produce a validation data set

Authors: Klaus Schafer, Stefan Emeis, Herbert Hoffmann, Carsten Jahn, Wolfgang J. Muller, Bernd Heits, Dirk Haase, Wolf-Dieter Drunkenmolle, Wolfgang Bachlin, K. Heinke Schlunzen, Bernd Leitl, Frauke Paschek, Michael Schatzmann

Addresses: Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Forschungszentrum Karlsruhe GmbH, Kreuzeckbahnstr, 19, 82467 Garmisch-Partenkirchen, Germany. ' Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Forschungszentrum Karlsruhe GmbH, Kreuzeckbahnstr, 19, 82467 Garmisch-Partenkirchen, Germany. ' Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Forschungszentrum Karlsruhe GmbH, Kreuzeckbahnstr, 19, 82467 Garmisch-Partenkirchen, Germany. ' Institute for Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Forschungszentrum Karlsruhe GmbH, Kreuzeckbahnstr, 19, 82467 Garmisch-Partenkirchen, Germany. ' Lower Saxony State Agency for Ecology (NLO), Gottinger Strasse 14, 30449 Hannover, Germany. ' Lower Saxony State Agency for Ecology (NLO), Gottinger Strasse 14, 30449 Hannover, Germany. ' Lower Saxony State Agency for Ecology (NLO), Gottinger Strasse 14, 30449 Hannover, Germany. ' Lower Saxony State Agency for Ecology (NLO), Gottinger Strasse 14, 30449 Hannover, Germany. ' Ingenieurburo Lohmeyer GmbH and Co. KG, An der Rossweid 3, 76229 Karlsruhe, Germany. ' Meteorological Institute, Hamburg University, Bundesstrabe 55, 20146 Hamburg, Germany. ' Meteorological Institute, Hamburg University, Bundesstrabe 55, 20146 Hamburg, Germany. ' Meteorological Institute, Hamburg University, Bundesstrabe 55, 20146 Hamburg, Germany. ' Meteorological Institute, Hamburg University, Bundesstrabe 55, 20146 Hamburg, Germany

Abstract: Air pollutants and meteorological parameters were measured continuously by in situ instruments, path-averaging techniques (up to three DOAS systems), and SODAR inside a street canyon and in the surrounding area of 1 km x 1 km (Gottinger Strasse in Hanover, Germany) from 2001 until 2003 which are available in the data bank ValiData for validation of microscale models. During three IOPs tracer experiments with a SF6 line source, sampling techniques of up to 15 sites and path-averaging FTIR spectrometry were performed. Concentration measurement results at roof level were anti-correlated with SODAR mixing layer heights, while those inside the street canyon are not. Re-circulation flow patterns inside the street canyon were studied together with corresponding wind tunnel experiments.

Keywords: urban street canyons; remote sensing; FTIR, DOAS; SODAR; rotorlike circulation; mixing height; small-scale modelling; validation data; dispersion modelling; air pollution; air quality; Germany; microscale modelling; tracer experiments; air flow; pollution measurement; simulation; recirculation flow.

DOI: 10.1504/IJEP.2005.007667

International Journal of Environment and Pollution, 2005 Vol.25 No.1/2/3/4, pp.201 - 216

Published online: 31 Aug 2005 *

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