Digital Twin Development for Climate Change Adaptation

This document is a technical report detailing the development of a digital twin aimed at simulating future impacts of climate change on Earth. The initiative, known as Destination Earth, is led by the European Commission and involves multiple institutions across Europe, including the Barcelona Supercomputing Center (BSC). The report outlines the collaborative efforts to create highly accurate digital twins of the Earth system, which will aid in responding to environmental challenges. It describes the technological advancements enabled by pre-exascale supercomputers, such as MareNostrum 5 and LUMI, which facilitate high-resolution climate simulations. The Climate Digital Twin (Climate DT) is highlighted as a significant component of this initiative, providing critical information for climate adaptation policies. The report also emphasizes the importance of multidisciplinary collaboration and the innovative computational developments necessary for the project's success. Furthermore, it discusses the operational approach that empowers users to engage with climate data effectively, ensuring that the digital twin meets the needs of vulnerable sectors affected by climate change.