Objective Considering its size and potential importance, the ocean is surprisingly poorly characterised in terms of organic gases that play important roles in global atmospheric chemistry. In this project we aim to characterise the nature of organic trace species, i n particular organic oxygenates, and the rate of emissions from marine biology. The oxidation of these compounds in air is directly linked to the global ozone budget while the oxidation pathways in seawater are largely unknown. We will conduct laboratory e xperiments on seawater samples and specific phytoplankton types to determine the effect of basic biophysical parameters (e.g. temperature, pH, plankton growth rate and physiological state) on the emission of organic species. The photooxidation rates and pr oducts of these species will be examined through measurements. Marine aerosols, with emphasis on the organic fraction, will also be investigated in terms of physical, chemical (mass closure), hygroscopic and optical properties. Two shipborne research cruis es will be performed to assess both emission and uptake in the open ocean, and contrast the pristine tropical Southern Hemispheric with the more strongly anthropogenically affected Northern Hemisphere. Based on the laboratory and field measurements an inte ractive atmosphere-ocean chemistry model will be developed, basic to global Earth system simulations. Fields of science natural sciencesbiological sciencesmarine biologynatural scienceschemical scienceselectrochemistryelectrolysis Programme(s) FP6-SUSTDEV - Sustainable Development, Global Change and Ecosystems: thematic priority 6 under the Focusing and Integrating Community Research programme 2002-2006. Topic(s) SUSTDEV-2004-3.I.2.1 - Ocean-Atmospheric-chemistry interactions Call for proposal FP6-2004-GLOBAL-3 See other projects for this call Funding Scheme STREP - Specific Targeted Research Project Coordinator MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V EU contribution No data Address Hofgartenstrasse 8 MUENCHEN Germany See on map Links Website Opens in new window Total cost No data Participants (9) Sort alphabetically Sort by EU Contribution Expand all Collapse all CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE France EU contribution No data Address 3, Rue Michel-Ange PARIS See on map Links Website Opens in new window Total cost No data CONSIGLIO NAZIONALE DELLE RICERCHE Italy EU contribution No data Address P.le Aldo Moro,7 ROMA See on map Links Website Opens in new window Total cost No data UNIVERSITY OF CRETE Greece EU contribution No data Address Leof. Knossou HERAKLION, CRETE See on map Links Website Opens in new window Total cost No data UNIVERSITY OF EAST ANGLIA United Kingdom EU contribution No data Address University Plain NORWICH See on map Links Website Opens in new window Total cost No data LEIBNIZ-INSTITUT FUER MEERESWISSENSCHAFTEN Germany EU contribution No data Address Wischhofstrasse 1-3 KIEL See on map Links Website Opens in new window Total cost No data UNIVERSITEIT ANTWERPEN Belgium EU contribution No data Address Prinsstraat 13 ANTWERPEN See on map Links Website Opens in new window Total cost No data UNIVERSITEIT GENT Belgium EU contribution No data Address Sint Pietersnieuwstraat 25 GENT See on map Links Website Opens in new window Total cost No data PANNON EGYETEM Hungary EU contribution No data Address Egyetem 10 VESZPREM See on map Links Website Opens in new window Total cost No data COMMISSARIAT À L'ÉNERGIE ATOMIQUE France EU contribution No data Address 31/33 rue de la Fédération PARIS See on map Links Website Opens in new window Total cost No data