On 30th June 2021, the 2020 Journal Citation Reports® were released by Clarivate Analytics. 

We are delighted to announce that, according the 2020 JCR, Hydrological Sciences Journal (https://www.tandfonline.com/toc/thsj20/current) ranks in the top quartile of Water Resources journals (24/98) with an Impact Factor of 3.787 and a five-year Impact Factor of 3.5. 

As the official journal of the IAHS, HSJ is the main vehicle and outlet for IAHS-led agenda-setting and cooperation initiatives, which has resulted in community key papers such as (recent examples):


·         Nardi, F., et al., 2021. Citizens AND HYdrology (CANDHY): conceptualizing a transdisciplinary framework for citizen science addressing hydrological challenges, Hydrological Sciences Journal, DOI: 10.1080/02626667.2020.1849707

·         Blöschl, G., et al., 2019. Twenty-three unsolved problems in hydrology (UPH) – a community perspective, Hydrological Sciences Journal, 64:10, 1141-1158.  DOI: 10.1080/02626667.2019.1620507

·         Tauro, F., et al., 2018. Measurements and Observations in the XXI century (MOXXI): innovation and multi-disciplinarity to sense the hydrological cycle, Hydrological Sciences Journal, 63:2, 169-196. DOI: 10.1080/02626667.2017.1420191

·         Ceola, S., et al., 2016. Adaptation of water resources systems to changing society and environment: a statement by the International Association of Hydrological Sciences, Hydrological Sciences Journal, 61:16, 2803-2817, DOI: 10.1080/02626667.2016.1230674

The Journal also publishes special issues and virtual special issues, for example:

·         Volume 65, Issue 5 Hydrological data: Opportunities and barriers (Part 1), 2020, Guest editor: Christophe Cudennec (link: https://www.tandfonline.com/toc/thsj20/65/5?nav=tocList)

·         S2 Panta Rhei Opinion Paper Series: a list of opinion papers, discussions and replies (2017-) Guest editor: Heidi Kreibich (link: https://www.tandfonline.com/toc/thsj20/65/S2?nav=tocList)

·         More information on other virtual special issues can be found at:
https://www.tandfonline.com/action/journalInformation?show=specialIssues&journalCode=thsj20

Such papers attract attention and contribute directly to the impact factor of the Journal.

The rise in HSJ’s impact factor and ranking is particularly good news as it has the potential to further amplify the visibility and strengthen the dissemination of the scientific research activities carried out internationally.

Our congratulations and sincere thanks go to the HSJ Editorial Office and Editors, Associate Editors and Reviewers for all their hard work for the journal.