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Investigation of the oxidizing capacity of the atmosphere by measurement of all relevant parameters over areas of different meteorological conditions and different pollutional impact

Objective

To quantify the impact of human activities on the oxidizing capacity of the troposphere, and the particular role of European emissions.


The basic concept is to perform measurements of both, the day time and night time oxidizing efficiency of the troposphere, by monitoring the free radicals OH and NO3 including the controlling parameters at sites with clean and polluted air and to provide a data base for well founded model predictions on local and European scales.

The planned experiments require - besides the measurements of the above two radicals - the determination of parameters as J (03), J (NO2), O3, NOX, CH4, H2O, PAN and several NMHC's. The various chemical, geographical and meteorological conditions required will be realized by measurements performed at Weybourne (GB), Schauinsland/Kleiner Feldberg (Germany), and at the Izana Observatory (Tenerife).

The comparison of observations with model calculations at a background site will be valuable for testing the understanding of the chemical behaviour in the background atmosphere, as well as for evaluating the impact of man-made emissions on the free troposphere chemistry.

The model has an extended chemical scheme which includes full diurnal calculations of approximately 50 compounds e.g. ozone, NOX, hydrocarbons, CO, etc., all the main compounds which are important for the ozone chemistry.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Johann-Wolfgang-Goethe Universität Frankfurt
Address
Marie-curie-straße 11
60439 Frankfurt Am Main
Germany

Participants (3)

Instituto Nacional de Meteorología
Spain
Address
77,Calle San Sebastian
38071 Santa Cruz De Tenerife
UNIVERSITY OF EAST ANGLIA
United Kingdom
Address
University Plain
Norwich
University of Oslo
Norway
Address

0315 Oslo-blindern