Article
Engineering, Civil
J. Garcia-Maribona, J. L. Lara, M. Maza, I. J. Losada
Summary: A new numerical model, IH2VOF-SED, has been developed for cross-shore beach profile evolution, which can accurately simulate sediment transport induced by breaking waves and reduce computational cost.
COASTAL ENGINEERING
(2021)
Article
Engineering, Civil
Paterno S. Miranda, Nobuhisa Kobayashi
Summary: This study examines the erosional and accretional profile changes of an intertidal mudflat using field data and the CSHORE numerical model. The model includes the effects of cross-shore and longshore sediment transport rates influenced by undertow and breaking waves. The study shows that mud characteristics, tide amplitude, and wave and wind conditions all contribute to the profile changes of the mudflat.
COASTAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Civil
Paul M. Bayle, Chris E. Blenkinsopp, Kevin Martins, George M. Kaminsky, Heather M. Weiner, David Cottrell
Summary: Dynamic cobble berm revetments are a promising soft engineering technique for protecting sandy coastlines. The revetment at North Cove in Washington, USA, was monitored for a nine-day period, revealing rapid reshaping under energetic conditions. Extreme fluxes mainly occurred in the swash zone with a depth of 0.15-0.45 m, and deeper swashes only occurred in zones inundated more than 50% of the time.
COASTAL ENGINEERING
(2023)
Article
Oceanography
Viyaktha Hithaishi Hewageegana, Alberto Canestrelli
Summary: The study investigates the influence of tides on cross-shore sediment dynamics of a longshore-uniform beach using a numerical model. It shows that water level fluctuations and tidal currents are the two main factors affecting cross-shore sediment dynamics.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Engineering, Marine
Loreta Kelpsaite-Rimkiene, Kevin E. Parnell, Rimas Zaromskis, Vitalijus Kondrat
Summary: This study reported the cross-shore profile evolution at Palanga in the eastern Baltic Sea, revealing that the profile changes were influenced by the depth of closure and presence of a groyne. The most significant changes in profile evolution were observed after a coastal erosion event. The results showed that the seaward extension of the dune system led to a narrowing of the visible beach, causing sand accumulation to be misinterpreted as erosion.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Jun Young Seo, Sun Min Choi, Ho Kyung Ha
Summary: The study found that Spartina vegetation in intertidal flats can both trap suspended sediments to promote deposition and protect against bed erosion by increasing sediment erodibility. However, Spartina also hinders the outflow of eroded mass, leading to increased vulnerability of upper sediment layers to erosion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geosciences, Multidisciplinary
Silke A. J. Tas, Dirk S. van Maren, Muhammad Helmi, Ad J. H. M. Reniers
Summary: This paper investigates the cross-shore dynamics of cheniers and discovers the existence of a highly dynamic but long-term stable state. The model developed in the study can predict the migration of cheniers.
Article
Environmental Sciences
Dohyeong Kim, Jeongil Ko, Joohee Jo, Jongseong Ryu, Kyungsik Choi
Summary: The research found that both natural and anthropogenic influences affect the morphological changes of tidal flats near the Saemangeum dike on the west coast of Korea. Man-made activities have led to overall erosion despite seasonal sedimentation patterns. The consequences include sustained erosion caused by the dike, heavy rainfalls in summer promoting erosion, and mud deposition from intensive dredging activity affecting sedimentology and benthic community stability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geography, Physical
S. L. Horton, W. J. Stephenson, M. E. Dickson
Summary: This paper summarises a field-based pilot study that successfully collected fine-grain sediment moving across a sub-horizontal platform at Mudstone Bay, New Zealand. The study found that sediment transport on the platform is directional and likely originates from the platform itself. Further research is needed to gain a better understanding of the erosion environment.
Article
Plant Sciences
Jesus M. Castillo, Blanca Gallego-Tevar, Eloy M. Castellanos, Manuel Enrique Figueroa, Anthony J. Davy
Summary: The study reveals that in the process of salt marsh succession, as halophytic species transition to those less tolerant of reducing conditions, the increasing sediment accretion gradually mitigates abiotic stress, promoting colonization and competition among different populations.
JOURNAL OF ECOLOGY
(2021)
Article
Engineering, Civil
J. Garcia-Maribona, J. L. Lara, M. Maza, I. J. Losada
Summary: In this study, a numerical model is used to analyze the hydro- and morphodynamics of a cross-shore beach profile and understand the processes driving the formation of breaker bars. The separate contributions of bedload and suspended sediment transport are examined. The results show that bedload transport accumulates sediment on the onshore side, shaping the breaker bar, while suspended transport contributes to the growth of the offshore side. Additionally, comparisons between different types of breakers reveal differences in bathymetric evolution and the position of the breaker bar.
COASTAL ENGINEERING
(2022)
Article
Marine & Freshwater Biology
Eelke O. Folmer, Allert I. Bijleveld, Sander Holthuijsen, Jaap van der Meer, Theunis Piersma, Henk W. van der Veer
Summary: Intertidal mudflat systems are shaped by various factors and are influenced by human activities and global changes. Analyzing the sediment grain size and composition in the Dutch Wadden Sea, the study found synchronous changes in the intertidal flats over time. The changes suggest the possible role of large-scale factors such as hydrodynamic regime and sediment composition in the coarsening of the flats.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Engineering, Marine
Rob Schepper, Rafael Almar, Erwin Bergsma, Sierd de Vries, Ad Reniers, Mark Davidson, Kristen Splinter
Summary: The study introduces a new approach to model wave-driven, cross-shore shoreline change with multiple timescales, using high-resolution shoreline data from three study sites to train the model. The new model shows improvement compared to the original model, revealing insights into the interactions between different timescales and the causes of shoreline change.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Marine & Freshwater Biology
Ergun Uzlu
Summary: This study investigates the mechanism of grain size change in the accretion profile under irregular wave conditions using physical model experiments. The results show that finer grains accumulate in the ridge of the accretion profiles, while coarser grains are deposited in the foreshore, shoreline, and toe sections.
Article
Engineering, Civil
Yan Ding, Richard Styles, Sung-Chan Kim, Rusty L. Permenter, Ashley E. Frey
Summary: A process-based parametric closure model has been developed for estimating cross-shore sediment transport rate to simulate long-term shoreline evolution. The model includes calculations of various subaqueous transport components and nonlinear wave effects to predict on- and offshore transport rates. Calibration and validation show improved accuracy in predicting shoreline changes, especially during different energy conditions, and the model's inclusion of CST has enhanced the simulation of sediment bypassing through coastal structures.
JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
(2021)
Article
Geography, Physical
Ian Townend, Zeng Zhou, Leicheng Guo, Giovanni Coco
Summary: The paper focuses on alluvial estuaries in river valleys and their response to sea level rise, particularly how estuary morphology moves in response to changes in accommodation space. The study shows that the transgression distance of the estuary is closely related to the floodplain area, with a smaller floodplain resulting in less landward movement and increased sensitivity to changes in sea level rise or sediment supply. The availability of sediment and the rate of sea level rise are crucial factors affecting the restoration capacity of the estuary system.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Geography, Physical
Zeng Zhou, Qian Liu, Daidu Fan, Giovanni Coco, Zheng Gong, Iris Moller, Fan Xu, Ian Townend, Changkuan Zhang
Summary: By studying the Nanhui tidal flat, it was found that sand-dominated layers and mud-dominated layers tend to form during spring and neap tides, respectively. The variation of tidal current strength influences the formation of these layers, but sediment properties such as settling velocity and grain size also play a role in sediment sorting and bedding characteristics.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Environmental Sciences
Sebrian Mirdeklis Beselly, Mick van der Wegen, Uwe Grueters, Johan Reyns, Jasper Dijkstra, Dano Roelvink
Summary: This study presents a novel approach to exploring mangrove dynamics on a prograding delta by integrating UAV and satellite imagery, resulting in high-spatiotemporal-resolution mangrove extent maps and vegetation coverage dynamics. The analysis is essential for ecologists, coastal managers, and policymakers.
Article
Oceanography
Leicheng Guo, Fan Xu, Mick van der Wegen, Ian Townend, Zheng Bing Wang, Qing He
Summary: Global climate changes have accelerated sea level rise, leading to increased coastal flooding and erosion risks. Research on a numerical model reveals that under sea level rise, morphodynamic development in tidal basins leads to the formation of new features like bars and channels, and lateral shoreline expansion plays a significant role in morphodynamic adjustment.
CONTINENTAL SHELF RESEARCH
(2021)
Article
Geography, Physical
J. Zheng, H. Elmilady, B. R. Robke, M. Taal, Z. B. Wang, B. C. van Prooijen, P. L. M. de Vet, M. van der Wegen
Summary: This study investigates the long-term morphodynamic evolution of sandy shoals in the Western Scheldt, the Netherlands, considering factors such as wind-waves, tides, and sea level rise. The research shows that wind-waves have an impact on shoal formation, but tidal residual sediment transport plays a more significant role in channel-shoal patterns on an estuarine system scale.
EARTH SURFACE PROCESSES AND LANDFORMS
(2021)
Article
Engineering, Civil
Kees Nederhoff, Rohin Saleh, Babak Tehranirad, Liv Herdman, Li Erikson, Patrick L. Barnard, Mick van der Wegen
Summary: Reliable and long-term hindcast data of water levels are essential for quantifying extreme water levels. Process-based numerical modeling was used to determine the impact of different physical processes on extreme water levels in the San Francisco Bay. Tides and non-tidal residuals were found to be significant factors in simulating high water levels in the Bay, with the importance of fluvial inflow increasing closer to the Delta.
COASTAL ENGINEERING
(2021)
Article
Marine & Freshwater Biology
Jakia Akter, Dano Roelvink, Mick van der Wegen
Summary: The research focuses on creating a sediment budget for the GMB Delta using a process-based model, showing possibilities for predicting morphodynamic evolution and sediment budget pathways. The model reveals the distribution of sediment loads in the river and estuarine system, as well as the morphological evolution of different channels.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Danghan Xie, Christian Schwarz, Maarten G. Kleinhans, Zeng Zhou, Barend van Maanen
Summary: This study conducts numerical experiments to explore the effects of tidal range, small wind waves, sediment supply, and coastal slope on mangrove development under sea-level rise. The results show that mangroves in micro-tidal conditions are more vulnerable, while macro-tidal conditions with large sediment supply can reduce mangrove vulnerability. Small wind waves promote sediment accretion and offset the impact of sea-level rise.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Geosciences, Multidisciplinary
H. Elmilady, M. van der Wegen, D. Roelvink, A. van der Spek
Summary: This study investigates the long-term morphological evolution of intertidal sandy shoals in response to sea-level rise (SLR) in estuarine environments. The results show that tidal currents are the main driver for morphodynamic adaptation to SLR, while wave action has a relatively minor impact on morphological evolution. Additionally, the addition of mud fractions accelerates shoal accretion under SLR.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Geology
Gerard Dam, Mick Van der Wegen, Marcel Taal, Ad Van der Spek
Summary: This study investigated the long-term sediment budget of the Western Scheldt estuary in the Netherlands and found that sediment characteristics play a crucial role in the estuarine environment's long-term sediment budget and morphodynamic behavior.
Article
Engineering, Environmental
Heyue Zhang, Tao Sun, Zeng Zhou, Haobing Cao, Jufei Qiu, Xiuqing Huang
Summary: Estuarine mudflats are heavily impacted by coastal erosion and reduced sediment delivery from rivers. This study explores how river flow regulation can enhance the resilience of mudflat ecosystems to erosion. The findings suggest that increased river flow can increase sediment deposition and improve the ecosystem's resilience. Furthermore, controlling mudflat aquaculture can optimize the performance of river flow regulation.
Article
Geosciences, Multidisciplinary
Leicheng Guo, Chunyan Zhu, Fan Xu, Weiming Xie, Mick van der Wegen, Ian Townend, Zheng Bing Wang, Qing He
Summary: The study reveals the significant impact of tidal flat embankments on the hydro-morphodynamics of a tidal basin, which is more significant than sea-level rise at a centennial time scale. It emphasizes the need for greater management awareness regarding the cumulative impact of human activities. The findings highlight the importance of conserving low-lying floodplains and tidal flats to counteract the drowning impact of sea-level rise.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Geosciences, Multidisciplinary
Amin Rahdarian, Karin R. Bryan, Mick Van der Wegen
Summary: This study examines the impact of initial bathymetry on the establishment of estuarine equilibrium and the response to sea-level rise. The findings highlight the importance of initial bathymetric conditions in predicting coastal response to changes such as sea-level rise.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Geosciences, Multidisciplinary
Uwe S. N. Best, Mick van der Wegen, Jasper Dijkstra, Johan Reyns, Bram C. van Prooijen, Dano Roelvink
Summary: This study collected a unique dataset for the Guyana coastline and analyzed the relationships between vegetation density, wave attenuation rates, and sediment characteristics. The results indicate that mangroves play an important role in wave attenuation and sediment trapping.
EARTH SYSTEM SCIENCE DATA
(2022)
Article
Geography, Physical
Yizhang Wei, Yining Chen, Jufei Qiu, Zeng Zhou, Peng Yao, Qin Jiang, Zheng Gong, Giovanni Coco, Ian Townend, Changkuan Zhang
Summary: This study investigates the long-term morphodynamic effect of geological constraints, specifically rocky mouth islands, on back-barrier basins using numerical simulations. The results show that the presence and spatial configuration of mouth islands significantly influence the morphological development of tidal basins, affecting sediment suspension, transport, erosion, and deposition. The study highlights the importance of considering the influence of rocky mouth islands in managing barrier basin morphodynamics under changing environmental conditions.
EARTH SURFACE DYNAMICS
(2022)
Article
Oceanography
Alyssa M. LeClaire, Eric N. Powell, Roger Mann, Kathleen M. Hemeon, Sara M. Pace, Vincent Saba, Hubert du Pontavice, Jillian R. Sower
Summary: Arctica islandica is an important species for recording climate change on the U.S. northeast continental shelf, and its growth rates show synchronous changes with cold and warm climatic periods. This study finds that A. islandica near the Delmarva Peninsula had higher growth rates during cold periods, possibly due to increased food supply in shallower water. The range recession of this species is a long-term process determined by the survivorship of older individuals.
CONTINENTAL SHELF RESEARCH
(2024)