Objective
To understand the mechanisms and extent of sudden arctic tropospheric ozone loss.
The arctic troposphere is subject to quite unique boundary conditions, like very stable stratification near the ground, or complete darkness during the arctic winter. Therefore, the chemical balance of the arctic troposphere is likely to be very sensitive to disturbing influences, for instance to free radical processes catalyzing boundary layer ozone destruction, as observed at several arctic sites. Those processes might have natural causes, but also possible is initiation by pollutants advected from western Europe. The phenomena certainly point to significant deficiencies in the understanding of the chemical species and processes involved. This project will address the following questions :
1. What is the role of free (halogen oxide) radicals in the phenomenon of arctic troposphere ozone loss ?
2. Is this disturbance a natural or an anthropogenic phenomenon ?
3. Which are the possible consequences of sudden arctic tropospheric ozone loss, in particular on the chemical conditions of the arctic lower troposphere ?
4. What is the spatial extent of the sudden tropospheric ozone loss phenomenon ?
The project will consist of three components :
1. Two field studies planned during springtime at arctic sites in Ny-Alesund/Spitzbergen and one to be selected.
2. Laboratory kinetic investigations of relevant homogeneous and heterogenous reactions at low temperature.
3. Modelling studies including gas phase and heterogeneous reactions and trajectory calculations.
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.
- natural sciences chemical sciences inorganic chemistry halogens
- natural sciences earth and related environmental sciences atmospheric sciences meteorology troposphere
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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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.
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Funding Scheme
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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
69117 HEIDELBERG
Germany
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.