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Structure preserving limited area weather modelling

Project description

Structure-preserving deep learning to optimise area weather modelling

Accurate regional weather forecasting is of paramount importance in light of the worsening climate crisis and the increasing occurrence of extreme temperatures. To achieve this, limited area models (LAMs) are employed, operating at high resolution to capture fine-grained weather features. However, they are connected to a global forecast model that operates at a lower resolution, making it unable to discern these finer details. The MSCA-funded GeometricLAMs project leverages deep learning techniques to accurately retrieve detailed weather structures that are essential for the integration of LAMs and global models. The project’s primary objective is to develop new technologies using structure-preserving deep learning, optimising the coupling of these models in a deterministic manner. This initiative aligns with the atmospheric modelling efforts of the UK Met Office.

Objective

As the climate crisis progresses, and we see an increase in extreme temperatures, the importance of accuracy in regional weather forecasting significantly increases. These regional models, or limited area models (LAMs), run at the highest feasible resolution to well resolve fine grain features in the model. Due to the global nature of the atmosphere, LAMs are coupled to a global forecast model, which due to the larger size must run at a coarser resolution and does not see the fine grain structures. This project will increase the accuracy of this coupling between LAM and global model. Specifically, the core focus is to utilise deep learning to recover accurate fine grain structures from a coarse global model to be incorporated as boundary data to the LAM.

The philosophy followed is that if one wants to couple two models it is paramount to preserve the physical structures between the two models. One may think of such structures as conserved quantities here. In addition to utilising this philosophy to optimise the coupling between models in the traditional (deterministic) sense, new technologies in structure preserving deep learning will be developed. These aim to resolve the fine grain features to be qualitatively consistent with a global model ran at high resolution.

This is an interesting problem from a mathematical perspective as it applies expertise from numerical analysis and geometric numerical integration to develop the field of machine learning.

This project has been designed to be in line with the UK Met Office atmospheric models and is of high research interest to them.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2022-PF-01

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Coordinator

NORGES TEKNISK-NATURVITENSKAPELIGE UNIVERSITET NTNU
Net EU contribution
€ 210 911,04
Address
HOGSKOLERINGEN 1
7491 Trondheim
Norway
Region
Norge Trøndelag Trøndelag
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Partners (1)