Project description
Research could uncover the how cloud phase changes affect climate sensitivity
The response of clouds to a change in average global temperature, known as cloud feedback, largely affects how much the planet will warm. Clouds are tricky to model, and their feedbacks account for the biggest uncertainties in calculating climate sensitivity. Recent studies have shown that thermodynamic phase changes drive cloud feedbacks to change with time owing to their dependence on warming levels or patterns. The EU-funded STEP-CHANGE project aims to improve understanding of how cloud feedbacks are associated with phase changes, focusing on the following cloud types and geographic regions: the Arctic, the deep convective cloud systems in tropic regions, and storm tracks in the southern hemisphere. The project will integrate aircraft measurements, lab experiments, spaceborne remote sensing and simulations.
Objective
The ways in which clouds change with global warming remain elusive, as are the associated cloud-climate feedbacks that govern most of the spread in climate sensitivity simulated by current Earth System Models. This uncertainty in turn limits society's ability to take necessary action to avoid dangerous climate change. Despite considerable research progress in recent decades, additional complexities have been uncovered that further add to the uncertainty. For example, the understanding that many cloud-climate feedbacks change with time, due to their dependence on warming levels or patterns, is relatively recent. Cloud thermodynamic phase changes are the root cause of some of this state-dependence, and new research has revealed that these feedbacks could shift Earth's climate into a state that is more sensitive to greenhouse gas forcing than at present. Understanding and quantifying this state-dependence is therefore critically important, but such progress will require deep understanding of processes on a range of scales, from the microphysics that control cloud phase to large-scale impacts on climate. Furthermore, it has become evident that different cloud-climate feedback regimes are governed by different processes with their own unique state dependence that must be investigated separately. Therefore, the overall objective of STEP-CHANGE is to understand and quantify feedbacks associated with cloud phase changes, including their state-dependence, for three distinct cloud regimes in the following regions: the Arctic, the Tropical deep convective region, and the Southern Hemisphere storm tracks. This will be achieved through a bold and innovative research strategy which includes aircraft measurements, lab experiments, space-borne remote sensing, and a hierarchy of numerical model simulations. STEP-CHANGE builds on recent discoveries and innovations within the PIs research group, and is motivated by key knowledge gaps identified in recent IPCC assessment reports.
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.
This project's classification has been validated by the project's team.
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.
This project's classification has been validated by the project's team.
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.
-
HORIZON.1.1 - European Research Council (ERC)
MAIN PROGRAMME
See all projects funded under this programme
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.
HORIZON-ERC - HORIZON ERC Grants
See all projects funded under this funding scheme
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) ERC-2021-COG
See all projects funded under this callHost institution
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.
0313 Oslo
Norway
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.