Title:

Automatic classification of concentration measurements of the LIMBA-Network.


Client:
Umweltbundesamt (II 6.4), Umweltforschungsplan des Bundesministeriums für Umwelt, Naturschutz und Reaktorsicherheit

Software:
S+, Fortran

Download:
Download Part 1 Data preparation (0.3 MB) (german)
Download Part 2 Classification (0.7 MB) (german)Download Part 3 Employment (3.35 MB) (german)
Download Part 4 Modification of the inverse-distance-algorithm to avoid over-evaluations of measurement-clusters (0.14 MB) (german)

Download Presentation: Estimate of exceedance frequency according the EU directive in air quality (1.24 MB) (german)

Description:

The European directive on air quality (RRL 96/62/EU) on the subsequent directives assume information about statistical parameters of time series to assess air quality. To derive this statistical parameters model calculations are permitted formally. IVU Umwelt made wide statistical analyses with time series of more than 1000 stations of Umweltbundesamt   (Federal Environmental Agency). Amongst other objective classification for "urban", "traffic", "rural" and "mountain" stations were developed. Based on these classifications statistical models for the 1. and 2. subsequent directive thresholds were derived. With this models IVU Umwelt can deduce NO₂ percentiles by NO_x annual mean values.