Met Éireann will use supercomputers to better understand the Atlantic weather system

Met Éireann and the Irish Center for High-End Computing based at NUI Galway are to study how to improve understanding of the North Atlantic ocean-atmosphere system, which has a major impact on the Earth’s climate – and on Ireland .

The system is a complex interaction between the ocean and the atmosphere above it, which modulates Earth’s climate by absorbing, releasing and transporting heat across the planet.

They aim to improve the simulation of system behavior, assess what is driving patterns to evolve, and more accurately predict the likely impact on Ireland.

This will be done by processing large amounts of data using computer modeling provided by EC-Earth’s system model, which uses an array of high-powered supercomputers.

It is an essential tool for understanding and predicting climate variability and change built by an international consortium in which Met Éireann, ICHEC and University College Dublin are the main partners. The four-year project will also produce high-resolution simulations of Ireland’s future climate.

As Ireland’s climate was dominated by the influence of the North Atlantic, “therefore it is of strategic importance to develop a national capacity for climate modeling in this area”, said Met’s research director Éireann, Dr. Saji Varghese.

With the implementation of the government’s climate action plan, “specific localized climate information will be needed to inform climate-sensitive decision-making. This project will ensure that this climate information is produced using state-of-the-art Earth system modeling and science,” he added.

Increased precision

Project leader at ICHEC, Dr Paul Nolan, said the resulting simulations would provide sharper and more accurate projections of the future global climate and lead to a better understanding, not only of the physical climate system, but also of the climate system. impact of climate on societies.

“The project will inform national policy on climate change by providing improved climate projections for Ireland under a range of emissions scenarios,” he added.

A recent report by the United Nations’ Intergovernmental Panel on Climate Change (IPCC) highlighted the need “to take immediate and ambitious action to secure our future”. To support this international effort, Met Éireann said it was working with partners to improve its climate information “to assist in climate-sensitive decision-making” by understanding Ireland’s future climate and, in particular, the drivers of change.

Global climate simulations using EC-Earth3 contributed to the landmark IPCC report released last August – ICHEC also contributed to this work. The consortium recently began development of the next version of the model, EC-Earth4, which will be used to inform the next IPCC global assessment report, AR7.

Irish researchers will contribute to this by improving the model’s representation of the North Atlantic ocean-atmosphere system.

They will also generate high-resolution simulations of Ireland’s future climate using EC-Earth4 combined with a range of regional climate models. This will allow researchers to study the impact of improved modeling of the North Atlantic on the country’s future climate projections.

These simulations will also inform updates to Project Translate, a two-year Met Éireann project currently underway to standardize future climate information for Ireland.

About Mariel Baker

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