- It is intended to support policy-?makers in taking appropriate measures to better prepare for extreme events. - To become climate neutral by 2050, the European Union launched two ambitious programmes: “Green Deal” and “DigitalStrategy“. As a key component of their successful implementation, climate scientists and computer scientists launched the “Destination Earth” initiative, which will start in mid-?2021 and is expected to run for up to ten years. During this period, a highly accurate digital model of the Earth is to be created, a digital twin of the Earth, to map climate development and extreme events as accurately as possible in space and time. - Observational data will be continuously incorporated into the digital twin in order to make the digital Earth model more accurate for monitoring the evolution and predict possible future trajectories. But in addition to the observation data conventionally used for weather and climate simulations, the researchers also want to integrate new data on relevant human activities into the model. - The new “Earth system model” will represent virtually all processes on the Earth’s surface as realistically as possible, including the influence of humans on water, food and energy management, and the processes in the physical Earth system. - The digital twin of the Earth is intended to be an information system that develops and tests scenarios that show more sustainable development and thus better inform policies. “If you are planning a two-?metre high dike in The Netherlands, for example, I can run through the data in my digital twin and check whether the dike will in all likelihood still protect against expected extreme events in 2050,” says Peter Bauer. - The digital twin will also be used for strategic planning of fresh water and food supplies or wind farms and solar plants. - In order to take this big step in the digital revolution, Bauer emphasises the need for earth sciences to be married to the computer sciences. - The digital twin will enable high-?resolution simulations that depict the complex processes of the entire Earth system. - The authors also see great potential in artificial intelligence (AI). - The scientists see their strategy paper as a starting point on the path to a digital twin of the Earth. http://ethz.ch/en/news-and-events/eth-news/news/2021/02/a-highly-accurate-digital-twin-of-our-planet.html
