Cel Problems to be solvedThe proposed research programme is designed to resolve many of the outstanding key issues concerning the chemical transformation of DMS so that a reliable quantitative appraisal can be made of its contribution to CCN formation and consequently an assessment of the magnitude of its regulatory role in climate. Past work on the atmospheric chemistry has been instrumental in highlighting very specific processes, which need to be investigated in detail if a reliable assessment of the relationship between DMS, CCN and climate is to be made. The continuing improvement in analytical techniques now makes it possible to make high quality and high time resolution measurements of many species, both in the laboratory and in the field, which were previously either not possible or only with large error limits and poor time resolution.Scientific objectives and approachThe major objectives of the project are1) to put constrains on the large uncertainties associated with current photochemical models by providing more accurate gas-phase kinetic and photochemical data on DMS oxidation chemistry.2) Investigate particle formation from both DMS and DMSO.3) Simultaneous high-time resolution measurements of dimethyl sulphide, oxidation products, halogen oxides, NO3 radical, and aerosol number/size distribution in 3 campaigns at sites with different geographical locations reflecting distinct aspects of DMS chemistry.4) Use the data to determine the relative importance of the oxidants OH, NO3 and halogen oxides under different atmospheric conditions.5) Use the laboratory data to construct a DMS chemistry module for CT-models capable of describing both the remote and polluted marine atmosphere and test of the models against the field data. The objectives will be achieved by a closely co-ordinated amalgamation of laboratory, field and modelling investigations.Expected impactsThe main deliverables of the project will initially be progressive constraints on kinetic/ mechanistic aspects of the oxidation chemistry of DMS and DMSO from laboratory and field experiments. This will be accompanied by high-time resolution field measurements of DMS, oxidation products, aerosols and other products relevant to the photochemistry. Based on this laboratory and field information a comprehensive gas/aerosol DMS-halogen-chemistry mechanism (g/a-DMS-HALO) module for incorporation in CT-models will be developed, which will be capable of describing DMS chemistry in both the remote and polluted marine atmosphere. The information can eventually be incorporated into global climatic models. Dziedzina nauki natural scienceschemical scienceselectrochemistryelectrolysisnatural scienceschemical sciencesphysical chemistryphotochemistrynatural scienceschemical sciencesinorganic chemistryhalogens Program(-y) FP5-EESD - Programme for research, technological development and demonstration on "Energy, environment and sustainable development, 1998-2002" Temat(-y) 1.1.4.-2. - Key action Global Change, Climate and Biodiversity 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 (10) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francja Wkład UE Brak danych Adres Avenue de la Terrasse, BFtiment 12 91198 GIF SUR YVETTE Zobacz na mapie Koszt całkowity Brak danych CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francja Wkład UE Brak danych Adres Avenue de la Recherche Scientifique 1 C 45071 ORLEANS Zobacz na mapie Koszt całkowity Brak danych COMMISSION OF THE EUROPEAN COMMUNITIES Włochy Wkład UE Brak danych Adres Via Enrico Fermi TP 290 21020 ISPRA Zobacz na mapie Koszt całkowity Brak danych DANISH METEOROLOGICAL INSTITUTE Dania Wkład UE Brak danych Adres 100,Lyngbyvej 100 2100 KOEPENHAGEN Zobacz na mapie Koszt całkowity Brak danych FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. Niemcy Wkład UE Brak danych Adres Nikolai-Fuchs-Strasse 1 30625 HANNOVER Zobacz na mapie Linki Strona internetowa Opens in new window Koszt całkowity Brak danych FUNDACION CENTRO DE ESTUDIOS AMBIENTALES DEL MEDITERRANEO Hiszpania Wkład UE Brak danych Adres C/ Charles R. Darwin 14 - Parque Tecnológico - Se 46980 CAMPAMENTO/PATERNA Zobacz na mapie Koszt całkowity Brak danych NORWEGIAN INSTITUTE FOR AIR RESEARCH Norwegia Wkład UE Brak danych Adres Instituttveien 18 2027 KJELLER 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 UNIVERSIDAD DE CASTILLA-LA MANCHA Hiszpania Wkład UE Brak danych Adres Campus Universitario SN 13071 CIUDAD REAL Zobacz na mapie Koszt całkowity Brak danych UNIVERSITY OF CRETE Grecja Wkład UE Brak danych Adres Knossos Avenue 71409 IRAKLION Zobacz na mapie Koszt całkowity Brak danych