论文信息 - Investigation on the spatial scales of the variability in measured near‐ground ozone mixing ratios

Investigation on the spatial scales of the variability in measured near‐ground ozone mixing ratios

A quantitative measure for the spatial representativeness of ground level ozone concentrations is described and discussed as a means to compare modeled and measured data. It is derived from the analysis of the routinely measured diurnal variations of more than 300 German sites using principal component analysis. From the number of principal components (six) needed to explain the representative part of the time series (95 %, up to the estimated error of the measurements) and the smallest correlation distance of these principal components we infer a radius of representativeness of about 4 km. This is a limit for the resolution of Eulerian models in order to simulate the representative part of the observations.

Stefan Tilmes | Jörg Zimmermann | J. Zimmermann | S. Tilmes

[1] J. Carroll,et al. The spatial variation of ozone climatology on the Western slope of the Sierra Nevada , 1995 .

[2] F. Vukovich. Time scales of surface ozone variations in the regional, non-urban environment , 1997 .

[3] Laurier Poissant,et al. Multivariate analysis of a 1992 SONTOS data subset , 1996 .

[4] Richard G. Derwent,et al. Analysis and interpretation of air quality data from an urban roadside location in Central London over the period from July 1991 to July 1992 , 1995 .

[5] J. Pleim,et al. Sub-grid-scale features of anthropogenic emissions of NOx and VOC in the context of regional eulerian models , 1996 .

[6] R. Preisendorfer,et al. Principal Component Analysis in Meteorology and Oceanography , 1988 .

[7] Laurie A. McNair,et al. Spatial inhomogeneity in pollutant concentrations, and their implications for air quality model evaluation , 1996 .

[8] Jim Carpenter,et al. Evaluation of ozone precursor source types using principal component analysis of ambient air measurements in rural Alabama , 1995 .