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Calving Law for Ice-Climate Simulations

Project description

Improving the accuracy of ice sheet prediction models

Predicting how climate change will continue to affect the stability and melting rate of glacial ice systems is a major challenge. Many complex processes must simultaneously be considered in prediction models. Calving (glacial splitting into icebergs), for example, is largely responsible for ice loss, yet it lacks efficient numerical models. To address this, the ERC-funded CALIX project aims to develop a robust numerical framework for calving processes based on bulk statistical properties. It will apply this framework to existing ice sheet models for testing against real-world observations. Then, the framework will be run in data ensembles to generate reliable projections of the Antarctic ice sheets’ contribution to rising sea levels.

Objective

Global sea levels will continue to rise as ice sheets shrink in response to climate change, but predictions vary widely on how much ice will be lost in different carbon futures. The single largest source of uncertainty is iceberg calving rates. Calving can cause more rapid ice loss than any other process, but no reliable method currently exists for representing calving in numerical models. CALIX seeks to find and apply the elusive universal calving law, by adopting a radical new approach based on the self-organising nature of glacier systems. The calving law will be formulated using bulk statistical properties of calving events, and will be rooted in both detailed observations and sound theory. The calving law will be implemented in leading ice-sheet models, throughly tested, and used in model run ensembles to determine the most-probable Antarctic Ice Sheet contribution to sea level into the 22nd Century under different mitigation and business-as-usual carbon scenarios. CALIX will address a major knowledge gap in glacier science, and will revolutionise our ability to understand ice-sheet stability, predict ice-sheet response to climate change and anticipate the global consequences.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2024-ADG

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Host institution

THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS
Net EU contribution
€ 2 173 737,25
Address
NORTH STREET 66 COLLEGE GATE
KY16 9AJ ST ANDREWS
United Kingdom
Region
Scotland Eastern Scotland Clackmannanshire and Fife
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Beneficiaries (5)