The DestinE Digital Twin for Weather-Induced Extremes (Extremes DT) supports responding and adapting to extreme events in a changing world by providing a capability to produce tailored simulations and address what-if scenarios related to extreme events in a past, present and future climate, complementing existing capabilities at national and European level.
The Extremes DT combines cutting-edge Earth-system models, impact-sector models and observations. It uses a global and a regional component to provide information on extreme events on a timescale of a few days ahead, at very high spatial resolution (4.4 km globally, 500 – 750 m over Europe).
The Extremes DT sets up a unified, flexible, framework to simulate extreme weather events and their associated impacts at km-scale resolutions, using the world-leading supercomputing facilities of the EuroHPC Joint Undertaking. A concise overview of what the Extremes DT aims to achieve, and the different concepts essential for an understanding of the Digital Twin’s characteristics is included in the [Extremes DT factsheet](https://destine.ecmwf.int/wp-content/uploads/2024/06/Extreme-Events-DT_…)
## Models
The global component of the Extremes DT builds on ECMWF’s Integrated Forecasting System. It is based on the configuration used operationally at ECMWF, by further increasing the resolution of several components of the Earth System Model (atmosphere, land and waves) to a resolution of 4.4 km. The ocean component remains unchanged and is NEMO on the ORCA025 grid. For more information on models please click [here](https://destine.ecmwf.int/weather-induced-extremes-digital-twin-1/#mode…)
## Simulations
The global Extremes DT simulations are carried out by ECMWF on EuroHPC supercomputers.
The global component of the Extremes DT provides four-day global simulations with a resolution of 4.4 km, initialized daily from the 00UTC ECMWF operational analysis at a resolution of 9 km (depending on EuroHPC availability, and queuing times). See [here](https://destine.ecmwf.int/weather-induced-extremes-digital-twin-1/#simu…) for more information on Simulations
## Parameters
Below we see the list of parameters extracted from the 'DestinE Extremes DT data portfolio', for more information please refer to the page [Extremes DT Parameters](https://confluence.ecmwf.int/display/DDCZ/Extremes+DT+data+catalogue)