Project description
How conditions in the stratosphere impact the weather
One of the most striking long-lived influences on the weather in Europe comes from the stratosphere, the layer of the atmosphere starting at about 10 km above Earth's surface. Extreme events in the stratosphere can have substantial impacts on surface weather, through coupling between the stratospheric polar vortex and the tropospheric jet streams.The EU-funded stratoIMPACT project will explore the connection between the stratosphere and surface climate, and how it will change in a future climate. The project will analyse observational data and a hierarchy of numerical models designed to capture the major underlying processes of stratosphere-troposphere coupling. In addition, a comparison of complex climate models will provide new insights into dynamical coupling.
Objective
One of the most striking long-lived influences on the weather in Europe comes from the stratosphere, a highly-stratified layer of the atmosphere starting at about 10 km above the surface. The stratosphere impacts surface weather through coupling between the stratospheric polar vortex and the tropospheric jet streams: Extreme events in the stratosphere, so-called sudden stratospheric warmings, tend to be followed by an equatorward shift of the North Atlantic jet stream and significant changes in weather patterns over Europe, including cold spells over Scandinavia and increased rainfall over the Mediterranean. It is however unclear how the coupling between the stratosphere and the troposphere will change in a future climate. Projections demonstrate great uncertainty in the stratospheric response to climate change, with a significant spread among the models, even in the sign of the response. Uncertainty also exists in the tropospheric response to climate change, with a considerable spread in climate model predictions in terms of the jet position, particularly in winter, when the stratospheric influence is strongest. It remains unclear how the combination of the changes in both the stratosphere and troposphere may alter the downward impact of the stratosphere. I propose to address these questions through observational data analysis and a hierarchy of numerical models. I will use an idealized modelling framework, designed to capture major underlying processes of stratosphere-troposphere coupling, to isolate the dominant factors that control the downward impact of the stratosphere, and their response to climate change. The role of transient eddies in maintaining the downward response will be investigated. A comparison to more complex climate models will provide further insights into dynamical coupling. Better understanding the connection between the stratosphere and surface climate is essential for reducing the uncertainty in climate models and extreme events prediction.
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 computer and information sciences data science
- natural sciences earth and related environmental sciences atmospheric sciences climatology climatic changes
- 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.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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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.
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.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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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.
(opens in new window) H2020-MSCA-IF-2019
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
8092 Zuerich
Switzerland
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.