Description: Das Projekt "In-situ Euphore-Messungen von Radikalen" wird vom Umweltbundesamt gefördert und von Universität-Gesamthochschule Wuppertal, Fachbereich 9 Naturwissenschaften II, Physikalische Chemie durchgeführt. The instrument to be developed will be used to analyze different chemical systems with variable VOC/NOx rations relevant to the regional and global troposphere. A major advantage of using the instrument in combination with the simulation chamber facility is that the oxidation capacity of the troposphere can be tested for different boundary conditions without the complication of meteorology. The method will provide, for the first time, a direct observation of the OH concentration-time profiles together with the oxidation rates of VOC species for simple systems and allow an assessment of the influence of the addition of other species on the OH radical chain to be tested. It is also intended to investigate the influence of aerosol particles on the radical chain. It is expected that the methodology developed within the proposed project can be used to analyse the chemical mechanisms also of complex reaction systems and that representative reduced mechanisms can be derived from the experimental analysis of the OH radical chain. The project will also provide a facility by which other instruments used for ambient radical measurements can be tested and calibrated under atmospheric conditions.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Wuppertal ? Messgerät ? VOC ? Meteorologie ? Physikalische Chemie ? Aerosol ? Stickoxide ? Chemikalien ? Oxidation ? Simulation ? Systemanalyse ? Troposphäre ? Witterung ? in situ ? Hydroxylradikal ? Konzentrationsmessung ? LIF ? Radikal [Chemie] ? Simulationskammer ?
Region: Nordrhein-Westfalen
Bounding box: 6.76339° .. 6.76339° x 51.21895° .. 51.21895°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1996-02-01 - 1999-01-31
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