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Improved understanding of stratospheric ozone loss by collaboration with the sage iii ozone loss and validation experiment

Objective

Problems to be solved
What are the processes that lead to ozone loss in the stratosphere? How can we improve the atmospheric chemistry models so that we can obtain more reliable predictions of future ozone levels? It is of importance for the well being of the European citizen to be able to predict future ozone levels over Europe. For this, we need a better understanding of the processes that lead to ozone depletion, and this understanding must be fed into the numerical models that predict future ozone levels.
Scientific objectives and approach
The main objective is to obtain a better understanding of the processes that lead to stratospheric ozone loss in the Arctic during winter and spring.
More specifically THESEO 2000-EuroSOLVE aims at:
1. Quantifying the degree and geographical extent of chemically-induced (anthropogenic) ozone loss in the Arctic vortex during the 1999-2000 winter.
2. Improving our knowledge on the role of lee-wave induced polar stratospheric clouds in the activation of passive reservoir compounds into active forms that destroy ozone.
3. Obtaining a more complete picture of the most important chemical species involved in chemical ozone destruction.
4. Closing the gap between measured and theoretically calculated ozone loss.
5. Creating the best possible synergy between THESEO 2000 and the US SOLVE campaign. These objectives are met through a combination of experimental observations in the field and numerical modelling. There are measurements taken from the ground, from balloons and from aircraft. THESEO 2000 and the American SOLVE campaign will be coordinated so that one gets the best possible coverage in measured species, and temporal and spatial coverage.
Expected impacts
The project will, in combination with other THESEO 2000 projects and the SOLVE campaign, provide an unprecedented amount of information on key chemical and physical parameters throughout the lifetime of the polar vortex from autumn to spring. This gives us a good opportunity to test numerical models and to gain insight in the processes that lead to ozone loss. On a more political level the THESEO 2000 campaign represents a closer collaboration between European and American scientists than ever before. Data gathered through the two campaigns are shared in near real time between the two communities. This leads to a better scientific exploitation of the data collected during the winter of 1999-2000.

Fields of science (EuroSciVoc)

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Programme(s)

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Topic(s)

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Call for proposal

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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.

CSC - Cost-sharing contracts

Coordinator

NORWEGIAN INSTITUTE FOR AIR RESEARCH
EU contribution
No data
Address
Instituttveien 18
2027 KJELLER
Norway

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Total cost

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.
No data

Participants (20)

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Last update: 28 July 2005

My Booklet

Permalink: https://cordis.europa.eu/project/id/EVK2-CT-1999-00047

European Union, 2026

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