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Organics over the Ocean Modifying Particles in both Hemispheres

Project information

Grant agreement ID: 18419

  • Start date

    1 September 2005

  • End date

    31 August 2008

Funded under:

FP6-SUSTDEV

  • Overall budget:

    € 2 477 167

  • EU contribution

    € 1 931 647

Coordinated by:

MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V

Germany

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.

Coordinator

MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V

Address

Hofgartenstrasse 8
Muenchen

Germany

Participants (9)

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

France

CONSIGLIO NAZIONALE DELLE RICERCHE

Italy

UNIVERSITY OF CRETE

Greece

UNIVERSITY OF EAST ANGLIA

United Kingdom

LEIBNIZ-INSTITUT FUER MEERESWISSENSCHAFTEN

Germany

UNIVERSITEIT ANTWERPEN

Belgium

UNIVERSITEIT GENT

Belgium

PANNON EGYETEM

Hungary

COMMISSARIAT À L'ÉNERGIE ATOMIQUE

France

Project information

Grant agreement ID: 18419

  • Start date

    1 September 2005

  • End date

    31 August 2008

Funded under:

FP6-SUSTDEV

  • Overall budget:

    € 2 477 167

  • EU contribution

    € 1 931 647

Coordinated by:

MAX-PLANCK-GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V

Germany