Atmospheric Circulation Reconstructions over Earth (ACRE) aims to recover sparse historical weather observations which are then processed to create reconstructions or 'reanalyses' of the world's climate over the last 200 years.
The re-analysis will show the state of the atmosphere at six hourly intervals to give unprecedented detail about past weather. The end product will have a huge number of potential uses - including understanding future climate.
Rob Allan , leading ACRE for the Met Office, said:
"This project will help to shed much more light on the patterns, variability and changes in our past climate. This will not only help give us more confidence in our understanding of the past, but also allow us to better assess our predictions for the future."
Gil Compo, leading reanalyses at the University of Colorado and National Oceanic and Atmospheric Administration in the US, said:
This requires an international effort to collate historical observations from sources as diverse as 19th century sea captains, turn of the century explorers and medical doctors, all pieced together using some of the world's most powerful supercomputers at the US Department of Energy. The result is the most extensive collection of weather information ever assembled for scientific study."
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