ANNOUNCEMENT: If you feel like it, fill the Google Form with the country where you are from/where you are classifying from!
ANNOUNCEMENT (10 OCTOBER 2025): as of today, we are keeping having two classifications to retire an image instead of three (no longer beta-testing).
ANNOUNCEMENT (17 NOVEMBER 2025): Thanks to your help, we have completely classified 1893! See the related announcement section for more details! 1894 is up and running.
Thank you and happy classifying!
This project recently migrated onto Zooniverse’s new architecture. For details, see here.
Help us digitize Italian meteorological data from 1879 to 1940 to better understand the climate and its past changes!
Learn moreThe bulletin contains data collected from several meteorological stations, each workflow is related to one of them. Choose your favorite!
Now we are digitizing the year 1894!
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Message from the researcher
Rescuing historical observations is the easiest way to collect new weather data!
ReDataAbout ReData
ReData (acronym of Recovery of Data) is the project that the Meteonetwork Association is carrying out together with the University of Milan and Politecnico di Milano. The project consists of the digitalisation of all meteorological data collected from 1879 to 1940 which were archived at the Royal Central Meteorological Office.
The preservation of these data, that risks being lost or deteriorated over time, is crucial.
The aim of ReData is to create a public dataset available to anyone who wants to carry out research in the climatological or historical field.