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Hydrology and Hydrodynamics Characteristics in Coastal Area
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Hydrology and Hydrodynamics Characteristics in Coastal Area

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: 20 May 2026 | Viewed by 3877

Special Issue Editors

Dr. Nizar Abcha

E-Mail Website
Guest Editor
Normandy University, UNICAEN, CNRS, UMR 6143 UNIROUEN, M2C, 14000 Caen, France
Interests: coastal hydrodynamics; sediment transport; hydrodynamics instabilities; water waves; extreme events
Special Issues, Collections and Topics in MDPI journals
Dr. Nicolas Lecoq

E-Mail Website
Guest Editor
Normandy University, UNIROUEN, UNICAEN, CNRS, UMR 6143 M2C, 76000 Rouen, France
Interests: sediment transport; coastal hydrodynamics; karst; watershed; caesar-lisflood modeling; extreme events; numerical simulations

Special Issue Information

Dear Colleagues,

The Special Issue “Hydrology and Hydrodynamics Characteristics in Coastal Area” seeks to bring together cutting-edge research on the behavior of water and related processes at the land–sea interface. Coastal zones present unique challenges such as strong tides, complex bathymetry, sediment transport, and human interventions that demand both innovative theoretical approaches and robust practical solutions. We welcome contributions that advance our understanding of hydrodynamic and hydrologic phenomena, improve predictive modeling, and develop novel experimental techniques. We welcome original research and review papers addressing, but not limited to, the following topics:

  • New methods and models for the numerical simulation of hydrodynamics in coastal and estuarine systems;
  • New methods and models for the numerical simulation of hydrology, particularly in coastal catchments and lowland watersheds;
  • Innovative experimental methods and instrumentation for investigating hydrodynamic processes in coastal zones;
  • Studies on cavitation, vortex dynamics, and multiphase flows in hydraulic machinery relevant to coastal or estuarine applications;
  • Exploration and modeling of hydropower, tidal energy, and ocean energy systems, with emphasis on their interaction with coastal hydrodynamics.

We encourage contributions that bridge theory and practice; integrate field data, modeling, and review studies; and explore interdisciplinary approaches to the challenges of coastal hydrology and hydraulics.

Dr. Nizar Abcha
Dr. Nicolas Lecoq
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. Water is an international peer-reviewed open access semimonthly 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 2600 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

  • coastal hydrodynamics
  • hydrologic modeling
  • storm surge and tidal dynamics
  • sediment transport
  • monitoring
  • remote sensing in coastal environments
  • watershed–coastal interface

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Published Papers (4 papers)

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Research

24 pages, 9055 KB  
Article
Dynamic Motion Characteristics of Floating Structures with Tuned Liquid Multiple-Column Dampers
by Bo-Jun Wang, Wen-Kai Weng and Ta-Wei Lin
Water 2026, 18(7), 846; https://doi.org/10.3390/w18070846 - 1 Apr 2026
Viewed by 265
Abstract
The pitch motion of offshore floating structures induced by wave loading is a critical design issue affecting operational safety and performance. The focus of this investigation was a tuned liquid multiple-column damper (TLMCD), which employed multiple interconnected liquid columns to enhance vibration mitigation [...] Read more.
The pitch motion of offshore floating structures induced by wave loading is a critical design issue affecting operational safety and performance. The focus of this investigation was a tuned liquid multiple-column damper (TLMCD), which employed multiple interconnected liquid columns to enhance vibration mitigation within a fixed structural footprint. The coupled equations of motion for a floating structure integrated with a TLMCD were derived, and a two-dimensional numerical model based on potential flow theory, the boundary element method, and linear wave theory was developed and validated through wave flume experiments. Parametric studies were conducted to examine the effects of key design parameters, including the liquid column water level and structural draft, on surge, heave, pitch, and liquid dynamic responses. The results indicated that, under a two-column TLMCD configuration, the pitch motion was reduced by approximately 75% compared with the no-damper case, and a further reduction was achieved by increasing the number of vertical liquid columns. The liquid column water level was identified as the dominant parameter governing pitch mitigation, whereas the structural draft primarily influenced the heave response. Overall, the results demonstrated that TLMCDs provide effective and practical motion-control capability for floating structures with limited installation space. Full article
(This article belongs to the Special Issue Hydrology and Hydrodynamics Characteristics in Coastal Area)
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18 pages, 7000 KB  
Article
Long-Term Hydrodynamic Evolution and Extreme Parameter Estimation in the Mekong River Estuary
by Xuanjun Huang, Bin Wang, Yongqing Lai, Jiawei Yu and Yujia Tang
Water 2026, 18(5), 620; https://doi.org/10.3390/w18050620 - 5 Mar 2026
Viewed by 400
Abstract
Tropical estuarine hydrodynamic processes are governed by complex interactions between tides, monsoons, and fluvial runoff. To obtain long-term (≥30 years) hydrodynamic conditions of the Mekong River Estuary, this study established a Finite Volume Coastal Ocean Model (FVCOM) coupled with validated Weather Research and [...] Read more.
Tropical estuarine hydrodynamic processes are governed by complex interactions between tides, monsoons, and fluvial runoff. To obtain long-term (≥30 years) hydrodynamic conditions of the Mekong River Estuary, this study established a Finite Volume Coastal Ocean Model (FVCOM) coupled with validated Weather Research and Forecast (WRF) wind forcing for a 32-year (1988–2019) high-resolution simulation. Validation against in situ observations confirms the model’s robustness. Temporal–spatial patterns of water level and current were analyzed, and extreme parameters for 1–100 year return periods were derived via the Pearson-III probability distribution. Results indicate the study area is a mesotidal environment (tidal range = 3.58 m) dominated by SSE-NNW reciprocating tidal currents. Relative to Vietnam’s national elevation datum, 100-year return period extreme high/low water levels are 2.15 m and −2.03 m, with a maximum storm surge setup of 2.09 m. The 100-year return period maximum current velocity reaches 4.58 m/s (A21 station), and Mekong River runoff exerts a negligible influence (<5% velocity change). This study provides high-precision baseline data for offshore wind farm engineering and disaster risk assessment, offering a methodological reference for tropical estuarine hydrodynamic simulations. Full article
(This article belongs to the Special Issue Hydrology and Hydrodynamics Characteristics in Coastal Area)
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22 pages, 5684 KB  
Article
Study on Conventional Triaxial Mechanical Properties and Energy Evolution Patterns of Red Sandstone Under Brine Erosion
by Zhonghui Zhang, Zihao Pang, Yuanmin Wang, Jiaqi Zhou, Kang Peng and Xu Liu
Water 2026, 18(4), 489; https://doi.org/10.3390/w18040489 - 14 Feb 2026
Viewed by 395
Abstract
With the increasing depletion of shallow resources, marine-based mineral resources in coastal and continental shelf areas are poised to become a new frontier for resource development. However, ions in brine solutions undergo complex water-rock interactions with rocks, affecting the engineering stability of marine-based [...] Read more.
With the increasing depletion of shallow resources, marine-based mineral resources in coastal and continental shelf areas are poised to become a new frontier for resource development. However, ions in brine solutions undergo complex water-rock interactions with rocks, affecting the engineering stability of marine-based rock masses. This study addresses engineering safety concerns arising from the long-term coupled effects of brine erosion and confining pressure on rocks during seabed mineral resource extraction. Using red sandstone as the research subject, it investigates the evolution of its mechanical properties under complex brine-erosion conditions. Experiments involved immersing red sandstone specimens in simulated seabed brine solutions for erosion cycles of 14, 21, and 35 days. Triaxial compression tests were conducted under confining pressures of 5 MPa, 10 MPa, and 15 MPa to systematically analyze the effects of erosion duration and confining pressure on rock strength, deformation, energy characteristics, and failure modes. Results indicate that brine erosion significantly reduces the strength and elastic modulus of red sandstone, but the effect is not simply linear. Instead, it follows a trend of initial slight strengthening followed by significant deterioration. During short-term erosion (21 days), some mechanical parameters slightly recovered, potentially due to temporary filling of fractures by brine ions. After long-term erosion (35 days), all mechanical properties markedly declined. This study aims to reveal the triaxial mechanical properties and energy evolution patterns of red sandstone under multi-ionic brine erosion, providing crucial experimental evidence for designing safe isolation layers and evaluating long-term stability in seabed mining. Full article
(This article belongs to the Special Issue Hydrology and Hydrodynamics Characteristics in Coastal Area)
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33 pages, 31295 KB  
Article
70 Years of Shoreline Changes in Southern Sardinia (Italy): Retreat and Accretion on 79 Mediterranean Microtidal Beaches
by Antonio Usai, Daniele Trogu, Marco Porta, Sandro Demuro and Simone Simeone
Water 2025, 17(17), 2517; https://doi.org/10.3390/w17172517 - 23 Aug 2025
Viewed by 2215
Abstract
Coastal erosion and shoreline change represent major challenges for the sustainable management of coastal environments, with implications for infrastructure, ecosystems, biodiversity, and the socio-economic well-being of coastal communities. This study investigates the shoreline evolution of 79 Mediterranean microtidal beaches located along the southern [...] Read more.
Coastal erosion and shoreline change represent major challenges for the sustainable management of coastal environments, with implications for infrastructure, ecosystems, biodiversity, and the socio-economic well-being of coastal communities. This study investigates the shoreline evolution of 79 Mediterranean microtidal beaches located along the southern coast of Sardinia Island (Italy), using the Digital Shoreline Analysis System (DSAS). Shorelines were manually digitised from high-resolution aerial orthophotos made available through the WMS service of the Autonomous Region of Sardinia, covering the period 1954–2022. Shoreline changes were assessed through five statistical indicators: Shoreline Change Envelope (SCE), Net Shoreline Movement (NSM), End Point Rate (EPR), Weighted Linear Regression (WLR), and Linear Regression Rate (LRR). The results highlight marked spatial and temporal variability in shoreline retreat and accretion, revealing patterns that link shoreline dynamics to the degree of anthropisation or naturalness of each beach. In fact, coastal areas characterised by local anthropogenic factors showed higher rates of shoreline retreat and/or accretion, while natural beaches showed greater stability and resilience in the long term. The outcomes of this analysis provide valuable insights into local coastal dynamics and represent a critical knowledge base for developing targeted adaptation strategies, supporting spatial planning, and reducing coastal risks under future climate change scenarios. Full article
(This article belongs to the Special Issue Hydrology and Hydrodynamics Characteristics in Coastal Area)
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