Time series of historical daily discharge data of Italian rivers digitised within the SIREN (Saving Italian hydRological mEasuremeNts) project (https://www.zooniverse.org/projects/siren-project/siren-project).

This is the first release of the dataset, new time series will be published soon.

Acknowledgement

We sincerely thank the contribution of more than 1900 Zooniverse volunteers for the transcription of the observations.

The raw data used for the creation of this dataset was generated via the Zooniverse.org platform, development of which is funded by generous support, including a Global Impact Award from Google, and by a grant from the Alfred P. Sloan Foundation.

IMPETUS is supporting our project. IMPETUS is funded by the European Union’s Horizon Europe research and innovation programme under grant agreement number 101058677. Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Executive Agency (REA). Neither the European Union nor the granting authority can be held responsible for them.