The DestinE Digital Twin for Climate Change Adaptation (Climate DT) supports adaptation activities by providing innovative climate information on multi-decadal timescales, globally, at scales at which many impacts of climate change are observed. It combines cutting-edge global Earth-system models, impact-sector applications and observations into a unified framework to provide global climate projections and impact-sector information on multi-decadal timescales (1990 to ~2050), at very high spatial resolutions (5 to 10 km).
The Climate DT represents the first ever attempt to operationalise the production of global multi-decadal climate projections, leveraging the world-leading supercomputing facilities of the EuroHPC Joint Undertaking along with some of the leading European climate models. A concise overview of what the Climate DT aims to achieve, and of the different concepts essential for an understanding of the Digital Twin’s characteristics, is included in the [Climate DT factsheet](https://destine.ecmwf.int/wp-content/uploads/2024/06/2024.06.07_Climate…)
## Storyline Simulation Present Climate
Storyline simulations offer a what-if capability to explore how a weather event we experienced in the recent past would change in a warmer climate and how it would have looked in past pre-industrial conditions. To constrain simulated weather events, a nudging approach is used to keep the simulated large-scale flow close to the ERA5 reanalysis for the period 2017 – 2023. Processes on smaller scales and thermodynamic processes are free to evolve, which allows scientists to study e.g. how extreme precipitation would change in a warmer world for a weather event observed in present-day conditions. Initial conditions are taken from ocean-only spinup simulations for 1950 and 2017, and from the IFS-FESOM projection for a +2 °C world. Storyline simulations will be updated regularly to include most recent months. The next update will extend all storylines to include 2024.
## Models
The Climate DT exploits and further evolves a new generation of global storm-resolving and eddy-rich models built through a cooperative model development approach. For more information on models please click [here](https://destine.ecmwf.int/climate-change-adaptation-digital-twin-climat…)
## Simulations
The Climate DT team carries out several types of digital twin simulations on the EuroHPC supercomputers. Multi-decadal simulations are produced to cover the recent past (from 1990) and possible future evolutions of the climate up to 2050. See [here](https://destine.ecmwf.int/climate-change-adaptation-digital-twin-climat…) for more information on Simulations
## Parameters
Below we see the list of parameters extracted from the 'DestinE Climate DT data portfolio', for more information please refer to the pages [Climate DT Phase2 CLTE Parameters](https://confluence.ecmwf.int/display/DDCZ/DestinE+ClimateDT+Phase+2+clt…) and [Climate DT Phase2 CLMN Parameters](https://confluence.ecmwf.int/display/DDCZ/DestinE+ClimateDT+Phase+2+clm…)