Extreme events simulations

The Global Continuous Extremes DT, developed in-house at ECMWF is pushing the boundaries of global weather simulations up to a few days ahead. Based on ECMWF’s flagship Integrated Forecasting System (IFS) model, the first experimental results at 4.4 and 2.8km resolution show significant improvements representing complex phenomena such as tropical cyclones and strong rain events over mountainous regions. The regional On-Demand Extremes DT, developed by a large European consortium led by Météo-France, provides a configurable and interactive framework which can be activated as extreme events occur over Europe, allowing to zoom in and assess the impacts of weather-induced extremes at sub-kilometre scale resolutions on a timescale of a couple of days ahead. The On-Demand component has already produced first experimental simulations at sub-km scales, building on the previous work of the ACCORD Consortium.