Cel To develop an instrument based on laser induced fluorescence (LIF) for highly sensitive measurements of OH/HO2 radical concentration-time profiles in the simulation chamber The instrument to be developed will be used to analyze different chemical systems with variable VOC/NOx ratios 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 analyze 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. Dziedzina nauki natural scienceschemical scienceselectrochemistryelectrolysisnatural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologytropospherenatural sciencesphysical sciencesopticslaser physics Program(-y) FP4-ENV 2C - Specific programme of research and technological development in the field of environment and climate, 1994-1998 Temat(-y) 020101 - Troposphere Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator BERGISCHE UNIVERSITAET GESAMTHOCHSCHULE WUPPERTAL Wkład UE Brak danych Adres Gauss-Straße 20 42097 WUPPERTAL Niemcy Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (4) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko Consejo Superior de Investigaciones Científicas Hiszpania Wkład UE Brak danych Adres 119/123,Serrano 28071 Madrid Zobacz na mapie Koszt całkowity Brak danych Forschungszentrum Jülich GmbH Niemcy Wkład UE Brak danych Adres Wilhelm-Johnen-Straße 52425 Jülich Zobacz na mapie Koszt całkowity Brak danych RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG Niemcy Wkład UE Brak danych Adres Im Neuenheimer Feld 229 69117 HEIDELBERG Zobacz na mapie Koszt całkowity Brak danych UNIVERSITY OF LEEDS Zjednoczone Królestwo Wkład UE Brak danych Adres Woodhouse Lane LS2 9JT LEEDS Zobacz na mapie Koszt całkowity Brak danych