Field measurements within a quarter of a city including a street canyon to produce a validation data set. (1st September 2005)

• Record Type: Journal Article
• Authors: Schafer, Klaus; Emeis, Stefan; Hoffmann, Herbert; Jahn, Carsten; Muller, Wolfgang; Heits, Bernd; Haase, Dirk; Drunkenmolle, Wolf-Dieter; Bachlin, Wolfgang; Schlunzen, K.; Leitl, Bernd; Paschek, Frauke; Schatzmann, Michael
• Is Part Of: International journal of environment and pollution. Volume 25:Number 1-4(2005)
• Page Start: 201
• Page End: 216
• Publication Date: 2005-09-01
• Subjects: 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; Environmental policy -- Periodicals; Environmental engineering -- Periodicals; Environmental sciences -- Periodicals; Pollution -- Periodicals; 363.73
• Languages: English
• ISSNs: 0957-4352

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.