Objective
Owing to their potential influence on climate atmospheric aerosol particles have received considerable attention during recent years. Their formation processes are thus of importance. Several air borne experiments have identified the upper troposphere and lower stratosphere as one of the major formation regions. The sulfate aerosol particles are formed via gas to particle conversion. As the primary mechanism that influences the number of particles is regarded the binary homogeneous nucleation of sulfuric acid and water. However, predicted nucleation rates are usually much lower than the nucleation rates inferred from particle measurements showing that our understanding of particle formation processes in the atmosphere is far from complete.
Recently, ternary homogeneous nucleation and ion-mediated nucleation were suggested as nucleation mechanism, which may explain the gap between measurements and simulations. Further, measurements show that binary nucleation rates may be enhanced by atmospheric variability and mixing and may occur under conditions which are otherwise unfavourable for nucleation. Our intention of this proposal is to investigate nucleation and growth processes of sulfate aerosol in the atmosphere theoretically using model simulations but in close connection to available observations. Especially, we will investigate when, where and under which condition enhanced nucleation rates are occurring.
We intend to compare our model results with measurements made during several measuring campaigns. This research will be carried out at the Department of Meteorology and the Institute of Applied Experimental Research at the University of Stockholm, which has a long established cooperation with the University of Helsinki. Therefore, an Intra-European cooperation between Sweden, Finland and Germany is resulting through this work and in particular the expertise of the applicant on this topic will be completed.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- humanities history and archaeology history
- natural sciences earth and related environmental sciences environmental sciences ozone depletion
- natural sciences earth and related environmental sciences atmospheric sciences meteorology troposphere
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2002-MOBILITY-5
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Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
STOCKHOLM
Sweden
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.