HESS cover
Executive editors : Theresa Blume, Alberto Guadagnini, and Thom Bogaard & Hilary McMillan
eISSN: HESS 1607-7938, HESSD 1812-2116

Hydrology and Earth System Sciences (HESS) is a not-for-profit international two-stage open-access journal for the publication of original research in hydrology. HESS encourages and supports fundamental and applied research that advances the understanding of hydrological systems, their role in providing water for ecosystems and society, and the role of the water cycle in the functioning of the Earth system. A multi-disciplinary approach is encouraged that broadens the hydrological perspective and the advancement of hydrological science through integration with other cognate sciences and cross-fertilization across disciplinary boundaries.

Journal metrics

HESS is indexed in the Web of Science, Scopus, Google Scholar, etc. We refrain from displaying the journal metrics prominently on the landing page since citation metrics used in isolation do not describe importance, impact, or quality of a journal. However, these metrics can be found on the journal metrics page.

News

07 May 2026 Temporary unavailability of article and preprint PDFs due to technical issues

Since Tuesday, 5 May, 06:30 CET, we have been experiencing technical issues caused by high demand on our systems, which have significantly affected our journal libraries. To maintain platform stability and ensure continued access to critical services, all preprint and journal article PDFs were temporarily restricted, while HTML full-text content and XML files remained available. Since Thursday, 7 May, 08:30 CET, we have made the preprint PDFs available again; however, journal article PDFs remain restricted until the technical issues have been resolved. We apologize for the inconvenience and appreciate your patience as we work to restore full PDF access as quickly as possible. Thank you for your understanding.

07 May 2026 Temporary unavailability of article and preprint PDFs due to technical issues

Since Tuesday, 5 May, 06:30 CET, we have been experiencing technical issues caused by high demand on our systems, which have significantly affected our journal libraries. To maintain platform stability and ensure continued access to critical services, all preprint and journal article PDFs were temporarily restricted, while HTML full-text content and XML files remained available. Since Thursday, 7 May, 08:30 CET, we have made the preprint PDFs available again; however, journal article PDFs remain restricted until the technical issues have been resolved. We apologize for the inconvenience and appreciate your patience as we work to restore full PDF access as quickly as possible. Thank you for your understanding.

13 Feb 2026 University of Western Ontario partners with Copernicus Publications to support open-access publishing

Copernicus Publications has signed a new agreement with Western Libraries at the University of Western Ontario, providing a 50% APC reduction for eligible corresponding authors submitting from 1 January 2026. Please read more.

13 Feb 2026 University of Western Ontario partners with Copernicus Publications to support open-access publishing

Copernicus Publications has signed a new agreement with Western Libraries at the University of Western Ontario, providing a 50% APC reduction for eligible corresponding authors submitting from 1 January 2026. Please read more.

03 Dec 2025 New MS Word template available for manuscript preparation

The existing MS Word template for authors has been significantly expanded and now includes many important notes on the standard sections that must be included in the manuscript. Please visit the "Submission" page, section "Templates for your manuscript file" and download the new template before writing your next manuscript.

03 Dec 2025 New MS Word template available for manuscript preparation

The existing MS Word template for authors has been significantly expanded and now includes many important notes on the standard sections that must be included in the manuscript. Please visit the "Submission" page, section "Templates for your manuscript file" and download the new template before writing your next manuscript.

Recent papers

12 May 2026
Moisture origins affecting sub-daily precipitation δ18O and d-excess values mapped in Western Europe
Guilhem Türk, Christoph J. Gey, Bernd R. Schöne, and Laurent Pfister
Hydrol. Earth Syst. Sci., 30, 2859–2878, https://doi.org/10.5194/hess-30-2859-2026,https://doi.org/10.5194/hess-30-2859-2026, 2026
Short summary
12 May 2026
Permafrost conditions in peatlands govern riverine flushing of dissolved organic carbon, methylmercury, and nutrients
Fares Mandour, Jazmin Greyeyes-Howell, Renae Shewan, Lauren Thompson, Irene Graham, Mike Low, Matthew Munson, Ryan Connon, Christopher Cunada, Craig Emmerton, and David Olefeldt
EGUsphere, https://doi.org/10.5194/egusphere-2026-2199,https://doi.org/10.5194/egusphere-2026-2199, 2026
Preprint under review for HESS (discussion: open, 0 comments)
Short summary
12 May 2026
Physically Anchored Multi-Resolution Neural Operator Framework for Flood Inundation Prediction
Abdolmehdi Behroozi, Kathryn Lawson, and Chaopeng Shen
EGUsphere, https://doi.org/10.5194/egusphere-2026-1982,https://doi.org/10.5194/egusphere-2026-1982, 2026
Preprint under review for HESS (discussion: open, 0 comments)
Short summary
12 May 2026
Streamflow prediction in data-scarce regions with semi-supervised deep learning
Tianlong Jia, Guoding Chen, Yao Li, Xinyu Chang, and Uwe Ehret
EGUsphere, https://doi.org/10.5194/egusphere-2026-1637,https://doi.org/10.5194/egusphere-2026-1637, 2026
Preprint under review for HESS (discussion: open, 0 comments)
Short summary
12 May 2026
Evaluation of a socio-hydrological water resource model for drought management in groundwater-rich areas
Doris E. Wendt, Gemma Coxon, Saskia Salwey, and Francesca Pianosi
Hydrol. Earth Syst. Sci., 30, 2837–2857, https://doi.org/10.5194/hess-30-2837-2026,https://doi.org/10.5194/hess-30-2837-2026, 2026
Short summary

Highlight articles

23 Apr 2026
Technical note: High Nash–Sutcliffe Efficiencies conceal poor simulations of interannual variance in seasonal regimes
Sacha W. Ruzzante, Wouter J. M. Knoben, Thorsten Wagener, Tom Gleeson, and Markus Schnorbus
Hydrol. Earth Syst. Sci., 30, 2337–2355, https://doi.org/10.5194/hess-30-2337-2026,https://doi.org/10.5194/hess-30-2337-2026, 2026
Short summary Editorial statement
23 Mar 2026
A lesson in preparedness: assessing the effectiveness of low-cost post-wildfire flood protection measures for the catastrophic flood in Kineta, Greece
George Papaioannou, Angelos Alamanos, Mohammed Basheer, Nikolaos Nagkoulis, Vassiliki Markogianni, George Varlas, Angelos Plataniotis, Anastasios Papadopoulos, Elias Dimitriou, and Phoebe Koundouri
Hydrol. Earth Syst. Sci., 30, 1487–1501, https://doi.org/10.5194/hess-30-1487-2026,https://doi.org/10.5194/hess-30-1487-2026, 2026
Short summary Editorial statement
22 Jan 2026
High resolution monthly precipitation isotope estimates across Australia from machine learning
Georgina Falster, Gab Abramowitz, Sanaa Hobeichi, Catherine Hughes, Pauline Treble, Nerilie J. Abram, Michael I. Bird, Alexandre Cauquoin, Bronwyn Dixon, Russell Drysdale, Chenhui Jin, Niels Munksgaard, Bernadette Proemse, Jonathan J. Tyler, Martin Werner, and Carol V. Tadros
Hydrol. Earth Syst. Sci., 30, 289–315, https://doi.org/10.5194/hess-30-289-2026,https://doi.org/10.5194/hess-30-289-2026, 2026
Short summary Editorial statement
13 Jan 2026
Global projections of aridity index for mid and long-term future based on CMIP6 scenarios
Camille Crapart, Sandrine Anquetin, Juliette Blanchet, and Arona Diedhiou
Hydrol. Earth Syst. Sci., 30, 163–181, https://doi.org/10.5194/hess-30-163-2026,https://doi.org/10.5194/hess-30-163-2026, 2026
Short summary Editorial statement
15 Dec 2025
How do geological map details influence the identification of geology-streamflow relationships in large-sample hydrology studies?
Thiago V. M. do Nascimento, Julia Rudlang, Sebastian Gnann, Jan Seibert, Markus Hrachowitz, and Fabrizio Fenicia
Hydrol. Earth Syst. Sci., 29, 7173–7200, https://doi.org/10.5194/hess-29-7173-2025,https://doi.org/10.5194/hess-29-7173-2025, 2025
Short summary Editorial statement

Notice on APC invoices

In accordance with current European restrictions, Copernicus Publications does not step into business relations with and issue APC invoices (articles processing charges) to Russian and Belarusian institutions. The peer-review process and scientific exchange of our journals including preprint posting is not affected. However, these restrictions require that the first contact (contractual partner of Copernicus) has an affiliation and invoice address outside Russia or Belarus.