Periodic Reporting for period 1 - EERIE (European Eddy-RIch ESMs)
Période du rapport: 2023-01-01 au 2024-04-30
Eddy Rich Earth System Models (EERIE) develops and applies a new generation of Earth System Models (ESMs) that are capable of explicitly representing a crucially important, yet unexplored regime of the Earth system, the ocean mesoscale. Leveraging the latest advances in science and technology, EERIE substantially improves our ability to simulate and understand the centennial-scale evolution of the global climate, especially its variability, extremes and how tipping points may unfold under the influence of the ocean mesoscale. Model improvements include new dynamical cores, new components (particularly sea ice), scale-aware parametrization and novel uses of Machine Learning (ML).
See also the image: The ocean mesoscale in the global climate system, showing (from the bottom) how EERIE will study the ocean mesoscale processes themselves, and (going upwards) their impact on the large-scale ocean, on atmospheric mean state and variability, and finally to impacts on climate change projections.
See also the image: The ocean mesoscale in the global climate system, showing (from the bottom) how EERIE will study the ocean mesoscale processes themselves, and (going upwards) their impact on the large-scale ocean, on atmospheric mean state and variability, and finally to impacts on climate change projections.
EERIE makes a leap forward in modelling and understanding the climate impacts of ocean mesoscale processes (Fig. 1); it develops novel experimental designs, aiming to enrich CMIP in support of future national and international (e.g. IPCC) climate change assessments; it reduces by at least 50% the time and energy needed to produce climate information with the highest level of process fidelity; it carries out frontier climate change projections; and it increases the reliability of regional climate change attribution, by developing improved estimates of background natural variability.
EERIE performs the most comprehensive eddy-rich climate simulations to date, using four cutting edge climate models. The analysis of these novel simulations sheds new light on the role of the ocean mesoscale in climate along with associated changes in a warming world, including tipping points associated with the Atlantic Meridional Overturning Circulation (AMOC).