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Hydrology
Special Issues
Hydrodynamics and Water Quality of Rivers and Lakes
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Hydrodynamics and Water Quality of Rivers and Lakes

A special issue of Hydrology (ISSN 2306-5338). This special issue belongs to the section "Hydrological and Hydrodynamic Processes and Modelling".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 9311

Special Issue Editors

Dr. Gabriela Elena Dumitran

E-Mail Website
Guest Editor
Faculty of Energy Engineering, Hydraulics, Hydraulic Machinery and Environmental Engineering Department, University POLITEHNICA of Bucharest, 313 Spl. Independentei, Sect. 6, 060042 Bucharest, Romania
Interests: hydrodynamics and protection of aquatic ecosystems; water resources pollution; modeling and restorations; eutrophication, limnology and hydrology
Dr. Liana Ioana Vuta

E-Mail Website
Guest Editor
Faculty of Energy Engineering, Hydraulics, Hydraulic Machinery and Environmental Engineering Department, University POLITEHNICA of Bucharest, 313 Spl. Independentei, Sect. 6, 060042 Bucharest, Romania
Interests: water resources management; water pollution; modeling and restorations; eutrophication; limnology and hydrology
Dr. Elisabeta Cristina Timis

E-Mail Website
Guest Editor
Faculty of Chemistry and Chemical Engineering, Department of Chemical Engineering, Babes-Bolyai University Cluj-Napoca, 11 Arany Janos St., 400028 Cluj, Romania
Interests: mathematical modelling of processes; process engineering; river pollutant transport modelling; in-river phosphorus transformations; advection-dispersion modelling
Dr. Minxue He

E-Mail Website
Guest Editor
California Department of Water Resources, 1416 9th Street, Sacramento, CA 95814, USA
Interests: hydrological; hydraulic; hydrodynamic; and water quality modeling;climate change;stochastic modeling; deep learning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The hydrodynamics of flowing and stagnant water—natural or artificial—studies the mechanics of the mixing and stratification processes and the mechanisms of transport and degradation of pollutants in the environment. In general, the quantities of interest are mass, momentum, and heat, where mass can be represented by any pollutant. The hydrodynamics and water quality of rivers and lakes in response to human activities and extreme weather events (e.g., draughts, floods) are important subjects that remain in need of deeper understanding.

The aim of this Special Issue is to address environmental problems (e.g., natural, and anthropogenic stressors) for surface aquatic environments, such as rivers, lakes, and reservoirs, in direct correlation with the use of water for various purposes. Water movement in these systems, as well as the disturbances on the system (e.g., extreme hydroclimatic events), influences its physical–chemical characteristics (temperature, dissolved oxygen regime, nutrient concentrations, etc.) and the distribution of pollutants, sediments, or aquatic organisms; therefore, there is a need to investigate and propose a form of targeted management (e.g., remediation measures).

Therefore, directions to be approached can be related to both the discussion of the fundamentals of hydrodynamic in surface waters, such as rivers, lakes, and reservoirs, and the management of surface water systems, which requires technical abilities. To this end, this Special Issue aims at providing an integrated approach of hydrodynamics, sediment transport, pollutants transport and transformations, water quality, and eutrophication in surface water systems.

Dr. Gabriela Elena Dumitran
Dr. Liana Ioana Vuta
Dr. Elisabeta Cristina Timis
Dr. Minxue He
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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • hydrodynamic
  • water
  • quality
  • rivers
  • lakes
  • reservoirs
  • pollutant transport and transformations
  • extreme events in surface waters
  • eutrophication
  • water management

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Published Papers (4 papers)

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Research

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23 pages, 5265 KiB  
Article
High-Resolution Flow and Phosphorus Forecasting Using ANN Models, Catering for Extremes in the Case of the River Swale (UK)
by Elisabeta Cristina Timis, Horia Hangan, Vasile Mircea Cristea, Norbert Botond Mihaly and Michael George Hutchins
Hydrology 2025, 12(2), 20; https://doi.org/10.3390/hydrology12020020 - 21 Jan 2025
Viewed by 516
Abstract
The forecasting of river flows and pollutant concentrations is essential in supporting mitigation measures for anthropogenic and climate change effects on rivers and their environment. This paper addresses two aspects receiving little attention in the literature: high-resolution (sub-daily) data-driven modeling and the prediction [...] Read more.
The forecasting of river flows and pollutant concentrations is essential in supporting mitigation measures for anthropogenic and climate change effects on rivers and their environment. This paper addresses two aspects receiving little attention in the literature: high-resolution (sub-daily) data-driven modeling and the prediction of phosphorus compounds. It presents a series of artificial neural networks (ANNs) to forecast flows and the concentrations of soluble reactive phosphorus (SRP) and total phosphorus (TP) under a wide range of conditions, including low flows and storm events (0.74 to 484 m3/s). Results show correct forecast along a stretch of the River Swale (UK) with an anticipation of up to 15 h, at resolutions of up to 3 h. The concentration prediction is improved compared to a previous application of an advection–dispersion model. Full article
(This article belongs to the Special Issue Hydrodynamics and Water Quality of Rivers and Lakes)
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16 pages, 7739 KiB  
Article
Analyzing Hydrodynamic Changes in Dubai Creek, UAE: A Pre- and Post-Extension Study
by Khaled Elkersh, Serter Atabay, Tarig Ali, Abdullah G. Yilmaz, Maruf Md. Mortula and Geórgenes H. Cavalcante
Hydrology 2024, 11(12), 202; https://doi.org/10.3390/hydrology11120202 - 25 Nov 2024
Viewed by 1066
Abstract
This paper presents a comparative study that examines the effects of the Dubai Creek extension on its hydrodynamics and water flushing dynamics. Dubai Creek (Khor Dubai) is a 24 km long artificial seawater stream located in the emirate of Dubai. The creek has [...] Read more.
This paper presents a comparative study that examines the effects of the Dubai Creek extension on its hydrodynamics and water flushing dynamics. Dubai Creek (Khor Dubai) is a 24 km long artificial seawater stream located in the emirate of Dubai. The creek has experienced the impact of the rapid urbanization of Dubai and a major 13 km extension project, which connected the creek to the Arabian Gulf from the other side. In this paper, two-dimensional hydrodynamic and flushing models were created using Delft3D Flexible Mesh (2021.03) to investigate the water circulation and water quality of the creek before and after the extension. The hydrodynamic models were calibrated and validated to accurately simulate water levels and currents with correlation values close to 1 and very small RMSE and bias. Flushing models were created to simulate water renewal along the creek. The results of the flushing models showed a significant improvement in the flushing characteristics of pollutants in terms of the residence times of the extended creek (Existing Creek) model compared to the old one (Old Creek). This improvement emphasized the positive impact of the creek extension project on the local aquatic ecosystem and its overall water quality. Full article
(This article belongs to the Special Issue Hydrodynamics and Water Quality of Rivers and Lakes)
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16 pages, 7498 KiB  
Article
Relating Lake Circulation Patterns to Sediment, Nutrient, and Water Hyacinth Distribution in a Shallow Tropical Highland Lake
by Mebrahtom G. Kebedew, Seifu A. Tilahun, Fasikaw A. Zimale, Mulugeta A. Belete, Mekete D. Wosenie and Tammo S. Steenhuis
Hydrology 2023, 10(9), 181; https://doi.org/10.3390/hydrology10090181 - 1 Sep 2023
Cited by 4 | Viewed by 2068
Abstract
Excess sediment and nutrient losses from intensifying agriculture degrade water quality and boost plant growth. The relationship between circulation patterns, spatial water quality degradation, and water hyacinth infestation is not adequately studied. The objective of this study is, therefore, to investigate the effect [...] Read more.
Excess sediment and nutrient losses from intensifying agriculture degrade water quality and boost plant growth. The relationship between circulation patterns, spatial water quality degradation, and water hyacinth infestation is not adequately studied. The objective of this study is, therefore, to investigate the effect of lake circulation patterns on sediment and nutrient distribution and its implication on the spread of water hyacinth in a tropical lake. This study was carried out in Lake Tana, the largest freshwater lake in Ethiopia, where sediment and nutrient concentrations are increasing, and water hyacinths have become a challenge since 2011. The lake circulation pattern was simulated by the Delft3D model based on a bathymetry survey, discharge, and meteorological forcings. To predict the transport path of sediments and dissolved nutrients, an inert tracer was released in the four main river inlets of the lake. Observed lake water level measurements were used to validate the model. Our results show that the lake circulation pattern could explain the transport path of sediment and nutrients and the location of the water hyacinths found in the northeast of the lake. Sediments and nutrients from the largest river, Gilgel Abay, in the southeast of Lake Tana, flow through the two outlets nearby with little sediment deposition due to the relatively short retention time. The phosphorus-rich sediments of the 24 h at 105 °C remaining three main rivers joining the lake at the north and east are transported to the northeast. Thus, the management and control of water hyacinths should focus on the northern and eastern catchment areas of Lake Tana. Full article
(This article belongs to the Special Issue Hydrodynamics and Water Quality of Rivers and Lakes)
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Review

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28 pages, 1804 KiB  
Review
Integrating Remote Sensing Methods for Monitoring Lake Water Quality: A Comprehensive Review
by Anja Batina and Andrija Krtalić
Hydrology 2024, 11(7), 92; https://doi.org/10.3390/hydrology11070092 - 26 Jun 2024
Cited by 3 | Viewed by 4437
Abstract
Remote sensing methods have the potential to improve lake water quality monitoring and decision-making in water management. This review discusses the use of remote sensing methods for monitoring and assessing water quality in lakes. It explains the principles of remote sensing and the [...] Read more.
Remote sensing methods have the potential to improve lake water quality monitoring and decision-making in water management. This review discusses the use of remote sensing methods for monitoring and assessing water quality in lakes. It explains the principles of remote sensing and the different methods used for retrieving water quality parameters in complex waterbodies. The review highlights the importance of considering the variability of optically active parameters and the need for comprehensive studies that encompass different seasons and time frames. The paper addresses the specific physical and biological parameters that can be effectively estimated using remote sensing, such as chlorophyll-α, turbidity, water transparency (Secchi disk depth), electrical conductivity, surface salinity, and water temperature. It further provides a comprehensive summary of the bands, band combinations, and band equations commonly used for remote sensing of these parameters per satellite sensor. It also discusses the limitations of remote sensing methods and the challenges associated with satellite systems. The review recommends integrating remote sensing methods using in situ measurements and computer modelling to improve the understanding of water quality. It suggests future research directions, including the importance of optimizing grid selection and time frame for in situ measurements by combining hydrodynamic models with remote sensing retrieval methods, considering variability in water quality parameters when analysing satellite imagery, the development of advanced technologies, and the integration of machine learning algorithms for effective water quality problem-solving. The review concludes with a proposed workflow for monitoring and assessing water quality parameters in lakes using remote sensing methods. Full article
(This article belongs to the Special Issue Hydrodynamics and Water Quality of Rivers and Lakes)
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