Old Weather is 'crowdsourcing' volunteers to assist in transcribing weather readings and location data from First World War ships' logs into a database, in order to identify weather patterns and extremes the world over.
At present the site needs help transcribing data from 27 Royal Navy vessels and the courses they sailed, from Britain and Ireland to the farthest reaches of the globe.
The more people that take part in Old Weather, the more accurate the data extracted from the ships' logs will be.
Each logbook will be also looked at by more than one person, allowing mistakes and errors to be filtered out.
The historical data will enable scientists to improve their understanding of weather variabilty in the past and in turn improve their ability to predict weather and climate in the future.
For more details visit www.OldWeather.org.