The Danish Meteorological Institute (DMI) is now opening access to Danra (Danish Regional Atmospheric Reanalysis), a historical dataset covering the weather in the entire country from 1990 to 2023.
For the first time, companies, authorities and researchers will thus have a detailed and coherent data base that can be freely used for both green innovation and climate adaptation.
Danra is based on millions of measurements from satellites, ships, aircraft and measuring stations, which DMI's researchers have quality-assured with the help of a supercomputer. This makes it possible to analyze the weather at a precise local level and see how wind, rain and storms have developed over time - from cloudbursts in 2011 to stable wind resources in quiet periods.
For the energy sector, including offshore and wind projects, the dataset opens up new opportunities for planning and optimizing projects. Historical data shows where there are stable wind and solar resources and when backup may be needed, which can increase both efficiency and security in green energy.
- We don't just provide insight into past weather - we open up new ideas, green innovation and technological breakthroughs. Our new weather time machine is intended to strengthen society's ability to understand and prepare for the wilder weather of the future, says DMI's director Marianne Thyrring.
DMI has also made the dataset user-friendly with the new so-called Zarr format, where companies can retrieve exactly the data packages they need, without heavy downloads or special software. Small and medium-sized companies can thus build new solutions directly on top of the historical weather data, such as advanced weather forecasts or tools for risk management in energy production.
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