Obiettivo 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. Campo scientifico natural scienceschemical scienceselectrochemistryelectrolysisnatural scienceschemical sciencesphysical chemistryphotochemistrynatural scienceschemical sciencesinorganic chemistryhalogens Programma(i) FP5-EESD - Programme for research, technological development and demonstration on "Energy, environment and sustainable development, 1998-2002" Argomento(i) 1.1.4.-2. - Key action Global Change, Climate and Biodiversity Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore BERGISCHE UNIVERSITAET GESAMTHOCHSCHULE WUPPERTAL Contributo UE Nessun dato Indirizzo Gauss-Straße 20 42097 WUPPERTAL Germania Mostra sulla mappa Costo totale Nessun dato Partecipanti (10) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francia Contributo UE Nessun dato Indirizzo Avenue de la Terrasse, BFtiment 12 91198 GIF SUR YVETTE Mostra sulla mappa Costo totale Nessun dato CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE Francia Contributo UE Nessun dato Indirizzo Avenue de la Recherche Scientifique 1 C 45071 ORLEANS Mostra sulla mappa Costo totale Nessun dato COMMISSION OF THE EUROPEAN COMMUNITIES Italia Contributo UE Nessun dato Indirizzo Via Enrico Fermi TP 290 21020 ISPRA Mostra sulla mappa Costo totale Nessun dato DANISH METEOROLOGICAL INSTITUTE Danimarca Contributo UE Nessun dato Indirizzo 100,Lyngbyvej 100 2100 KOEPENHAGEN Mostra sulla mappa Costo totale Nessun dato FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V. Germania Contributo UE Nessun dato Indirizzo Nikolai-Fuchs-Strasse 1 30625 HANNOVER Mostra sulla mappa Collegamenti Sito web Opens in new window Costo totale Nessun dato FUNDACION CENTRO DE ESTUDIOS AMBIENTALES DEL MEDITERRANEO Spagna Contributo UE Nessun dato Indirizzo C/ Charles R. Darwin 14 - Parque Tecnológico - Se 46980 CAMPAMENTO/PATERNA Mostra sulla mappa Costo totale Nessun dato NORWEGIAN INSTITUTE FOR AIR RESEARCH Norvegia Contributo UE Nessun dato Indirizzo Instituttveien 18 2027 KJELLER Mostra sulla mappa Costo totale Nessun dato RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG Germania Contributo UE Nessun dato Indirizzo Im Neuenheimer Feld 229 69117 HEIDELBERG Mostra sulla mappa Costo totale Nessun dato UNIVERSIDAD DE CASTILLA-LA MANCHA Spagna Contributo UE Nessun dato Indirizzo Campus Universitario SN 13071 CIUDAD REAL Mostra sulla mappa Costo totale Nessun dato UNIVERSITY OF CRETE Grecia Contributo UE Nessun dato Indirizzo Knossos Avenue 71409 IRAKLION Mostra sulla mappa Costo totale Nessun dato