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Hydrology
Special Issues
First Papers by Young Investigators in the Hydrological Sciences (2025-2026)
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First Papers by Young Investigators in the Hydrological Sciences (2025-2026)

A special issue of Hydrology (ISSN 2306-5338).

Deadline for manuscript submissions: 30 June 2026 | Viewed by 856

Special Issue Editors

Prof. Dr. Enda O'Connell

E-Mail Website
Guest Editor
School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
Interests: hydrological modelling; hydrology and water resources management; climate change impact assessment; flood risk estimation and management; rainfall modelling; earth systems engineering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Tammo Steenhuis

E-Mail Website
Guest Editor
Biological and Environmental Engineering, Cornell University, Ithaca, NY 14850, USA
Interests: watershed management; catchment processes; agricultural water management erosion; best management practices; ground water quality; vadose zone transport; preferential flow
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Ezio Todini

E-Mail Website
Guest Editor
Italian Hydrological Society, Piazza di Porta San Donato 1, 40126 Bologna, Italy
Interests: hydrological modeling; real-time flood forecasting; predictive uncertainty assessment; Kalman filters; Bayesian statistics and decision; water resources management
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Hydrology is the study of the waters of the Earth. Hydrology has close ties with hydraulics, hydrogeology, and the multiple sciences that study the atmosphere, the land surface, the soil, and the subsoil, and it ranges from complex problems of risk, forecasting, and optimization of water resources to interactions with ecological, urban, social, and economic systems.

This Special Issue of Hydrology, “First Papers by Young Investigators in the Hydrological Sciences (2025-2026)”, is open to early-career researchers in the middle or at the end of their PhDs who are shaping the future of hydrological Science. First papers are important milestones in every young investigator's life, and when published with other young investigators and supervised by senior editors, they can help build relationships for later life. A support team has been created to help smooth the pathway to publication while facilitating the exchange of ideas and relationship-building:

  • Pre-submission check and feedback. We encourage submissions co-authored with supervisors/senior mentors. If the manuscript is authored by predoctoral or master's students as the sole author, please submit proof of the supervisor's permission as a supplementary file.
  • The MDPI SciProfiles provides a platform to facilitate a First Paper Research Club, where first paper investigators can share and discuss their research before submitting their papers to the Special Issue (SI), and to enable continuing exchanges over the submission life of the SI. Please visit: https://sciprofiles.com/discussion-groups/2004
  • Relevant webinars led by experienced Associate Editors with first paper investigators invited as speakers.

We very much hope that you can participate in this exciting and memorable initiative. To foster excellence, we will award fee waivers to five young investigator authors who submit outstanding research articles or extensive review papers that discuss the latest research findings. The awards will be based on an assessment of extended two-page abstracts, which should be submitted before manuscript submission. The abstract submission deadline is 31st December 2025 (the deadline may be extended based on the circumstances surrounding the abstract submission). Please submit your 1-page CV as a supplementary file.

The articles published in this Special Issue will benefit from high visibility, giving their young authors a boost at the start of their independent academic careers.

We look forward to receiving your original research articles and reviews.

Prof. Dr. Enda O'Connell
Prof. Dr. Tammo Steenhuis
Prof. Dr. Ezio Todini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Hydrology is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • global hydrology
  • catchment hydrology
  • sustainable water resources management
  • floods and droughts
  • climate variability and change
  • modelling and prediction
  • innovative technologies

Benefits of Publishing in a Special Issue

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  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

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Research

15 pages, 5222 KB  
Article
Multi-Objective Optimization of the Physical Design of a Horizontal Flow Subsurface Wetland
by Jhonatan Mendez-Valencia, Carlos Sánchez-López, Eneida Reyes-Pérez, Rocío Ochoa-Montiel, Lucila Marquez-Pallares, Juan Aguila-Muñoz, Fredy Montalvo-Galicia, Miguel Angel Carrasco-Aguilar, Jorge Alberto Sánchez-Martínez and Jorge Arellano-Hernández
Hydrology 2025, 12(11), 303; https://doi.org/10.3390/hydrology12110303 - 14 Nov 2025
Viewed by 539
Abstract
Decontamination of wastewater, industrial effluents, stormwater, and graywater can be carried out through the use of natural or constructed wetlands. In either case, the natural functions of soil, vegetation, and organisms are widely applied for the treatment of contaminated water. In particular, in [...] Read more.
Decontamination of wastewater, industrial effluents, stormwater, and graywater can be carried out through the use of natural or constructed wetlands. In either case, the natural functions of soil, vegetation, and organisms are widely applied for the treatment of contaminated water. In particular, in the physical design of a constructed wetland, several operational factors must be adjusted with the aim of reducing pollution levels. Although various fully customized design methodologies have been developed and reported in the literature, they often fail to meet the required decontamination objectives. In this context, the application of the NSGA-II evolutionary algorithm is adequate to optimize the physical design of a horizontal subsurface flow wetland for graywater treatment, focusing specifically on the removal of biodegradable organic matter (BOD5). Four competing objectives are considered: minimizing physical volume and total design cost, while maximizing contaminant removal efficiency and graywater flow rate. Five constraint functions are also incorporated: removal efficiency greater than 95%, physical volume below 1000 m3, flow rate above 10 m3/d, a limit on total construction cost of MXN 1,000,000, and maintaining a length-to-width ratio greater than or equal to 2 but less than or equal to 4. The proposed methodology generates a wide set of non-dominated solutions, visualized through Pareto surfaces, which highlight the trade-offs among different objectives. This approach offers the possibility of selecting optimal designs under specific conditions, which underscores the limitations of conventional single-solution models. The results show that the methodology consistently achieved removal efficiencies above 95%, with construction costs within budget and physical volumes below the established limit, offering a more versatile and cost-effective alternative. This work demonstrates that the integration of NSGA-II into wetland design is an effective and adaptable strategy, capable of providing sustainable alternatives for graywater treatment and constituting a valuable decision-making tool. Full article
(This article belongs to the Special Issue First Papers by Young Investigators in the Hydrological Sciences (2025-2026))
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