Article
Engineering, Marine
Ryan J. K. Dunn, Jordan Glen, Hsin-Hui Lin, Sasha Zigic
Summary: The study examines the dynamics of suspended particulate matter (SPM) in Port Curtis estuary, Australia, utilizing the LISST instrument. The results show significant spatial and temporal trends in SPM sizes and concentrations, influenced by variable energy conditions on neap and spring tide cycles. Findings highlight the important influence of tidal regimes on SPM dynamics in estuarine environments.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Oceanography
Andrew W. M. Pomeroy, Curt D. Storlazzi, Kurt J. Rosenberger, Ryan J. Lowe, Jeff E. Hansen, Mark L. Buckley
Summary: In reef-lagoon systems, suspended sediment is primarily transported close to the seabed and influenced by wave frequencies. Mean currents are the main transport mechanism, contributing significantly more suspended-sediment flux than sea-swell and infragravity waves.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Engineering, Marine
Ju Huang, Rui Yuan, Jianrong Zhu
Summary: This study used a three-dimensional sediment numerical model to investigate the water and sediment transport in Hangzhou Bay. The results showed that in summer, there were southward and westward flows from the Changjiang Estuary, with stronger intensity during the spring tide. The bottom water and sediment transport patterns were similar to the surface patterns. In winter, the transport patterns were similar to those in summer but weaker.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Mingen Liang, Jing Liu, Yitong Lin, Zixiao He, Wen Wei, Liangwen Jia
Summary: Understanding suspended sediment processes in the mouth-bar region during typhoons is important for estuarine geomorphic prediction. An observation system was used to explore suspended sediment dynamics during Typhoon Higos in the Modaomen Estuary. Results showed that suspended sediment concentrations during typhoons can be 30 times larger than normal conditions, primarily due to sediment resuspension induced by typhoon waves. The dynamics of suspended sediment varied depending on the dominant flows in the mouth-bar region, either being influenced by wind-driven flow and ebb surge transport combined with river flooding or tidal processes.
Article
Environmental Sciences
Wei Luo, Fang Shen, Qing He, Fang Cao, Haiyang Zhao, Mengyu Li
Summary: The suspended sediment concentration (SSC) in the Yangtze River Estuary has shown an overall declining trend over the past 37 years, especially during the flood season. Different sub-regions in the estuary have responded differently to the reduced sediment discharge, with the inner estuary showing the most significant decline.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Wenfei Jia, Yujun Yi
Summary: This study presents a numerical model that analyzes the sediment distribution and erosion-accretion patterns in the Yellow River Estuary (YRE) during the water-sediment regulation scheme (WSRS). The results show that WSRS effectively changes the sediment distribution and erosion condition in the YRE.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Meteorology & Atmospheric Sciences
Rui Zhang, Bo Hong, Lei Zhu, Wenping Gong, Heng Zhang
Summary: This study examined the morphological evolution and hydrodynamic responses of the Huangmaohai estuary in southern China. The results showed that human activities have significantly changed the estuary's topography and modified its circulation patterns.
Article
Ecology
Chris T. T. Perry, Michael A. A. Salter, Ines D. D. Lange, David P. P. Kochan, Alastair R. R. Harborne, Nicholas A. J. Graham
Summary: Coral reef fishes play essential ecological roles on reefs and also contribute to geo-ecological functions, such as framework modification and sediment generation. The functions vary across different regions and are influenced by fish biomass and species identity.
Article
Geosciences, Multidisciplinary
Yue Ming, Lei Gao
Summary: Flocculation, an important process in estuarine mixing, plays a fundamental role in land-to-sea interactions. In this study, the use of LISST measurements and stable isotopic ratios of delta C-13 greatly improved our understanding of suspended particulate matter (SPM) dynamics in the Changjiang River Estuary. The results revealed that flocculation processes were influenced by phytoplankton blooms and involved the aggregation of smaller particles into larger ones.
JOURNAL OF MARINE SYSTEMS
(2022)
Article
Oceanography
Galen Egan, Grace Chang, Andrew J. Manning, Stephen Monismith, Oliver Fringer
Summary: This study conducted field work and collected data in a wave- and current-driven estuarine environment to examine cohesive sediment flocculation dynamics. The study found that the factors driving floc size variability differed between locally sourced sediment and suspended sediment advected from upstream. The analysis also revealed seasonal variability in these trends and presented evidence of a relationship between floc size and the inverse turbulent Schmidt number.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Jodie A. Schlaefer, Sterling B. Tebbett, David R. Bellwood
Summary: Most studies only quantify sediment in one reservoir or one sedimentary process, with over-representation of measurements in the water column and sediment trapping rates. Sediments on reef substrata and transitions from water column to benthos were rarely quantified. Only about 20% of sediment measurements were accompanied by quantification of hydrodynamic drivers.
MARINE POLLUTION BULLETIN
(2021)
Article
Environmental Sciences
Maureen A. Downing-Kunz, Paul A. Work, David H. Schoellhamer
Summary: The suspended-sediment flux at the ocean boundary of the San Francisco Estuary was measured following peak watershed runoff from storms over a tidal cycle in two successive years. Results showed that sediment transport was tidally asymmetric with higher flux during flood tides. The study also revealed substantial trapping of watershed sediments within the estuary, likely due to the formation of estuarine turbidity maxima (ETM).
ESTUARIES AND COASTS
(2021)
Article
Environmental Sciences
David K. Ralston, Brian Yellen, Jonathan D. Woodruff
Summary: Observations and modeling were used to assess the potential impacts of sediment releases from dam removals on the Hudson River estuary. It was found that the main sediment load comes from side tributaries, and fine-grained sediment deposits spread broadly along the estuary while coarser sediment deposits near the source, with transport distance inversely related to settling velocity.
ESTUARIES AND COASTS
(2021)
Article
Environmental Sciences
C. E. Renshaw, E. N. Dethier, J. D. Landis, J. M. Kaste
Summary: The input of organic matter into stream channels is an important energy source for headwater ecosystems and plays a crucial role in the global carbon cycle. The study focuses on quantifying the mobilization, transport, and storage of organic-rich fine sediment in a Strahler fourth-order stream during intermediate-sized storm events. It is found that the channel bed is consistently a source of suspended load to the channel margins, and the trapping of suspended load by riparian margins limits sediment transport distance and decouples the channel from local terrestrial organic matter exchange.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Jongwi Chang, Guan-hong Lee, Courtney K. Harris, Steven Miguel Figueroa, Nathalie W. Jung
Summary: This study aims to understand the impacts of human alterations on the Nakdong Estuary in Korea through simulations. The results showed that the estuarine dam had a larger influence on the estuary than land reclamation, and their combined effect was more significant. These findings can be applied to other estuaries that have experienced human alterations.
FRONTIERS IN MARINE SCIENCE
(2023)
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
Oceanography
Chunyan Zhu, D. S. Maren, Leicheng Guo, Jianliang Lin, Qing He, Zheng Bing Wang
Summary: This study investigates the role of high suspended sediment concentrations combined with tidal asymmetry in estuarine turbidity maximum (ETM) formation. The results suggest that sediment suspensions, horizontal sediment-induced density currents, a reduction in turbulent mixing, and water-bed exchange processes all influence the formation of ETM.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Geography, Physical
Jana R. Cox, Mandy Paauw, Jaap H. Nienhuis, Frances E. Dunn, Eveline van der Deijl, Christopher Esposito, Marc Goichot, Jasper R. F. W. Leuven, Dirk S. van Maren, Hans Middelkoop, Safaa Naffaa, Munsur Rahman, Christian Schwarz, Eline Sieben, Annisa Triyanti, Brendan Yuill
Summary: A comparison of 21 existing and planned Sedimentation-Enhancing Strategies (SES) shows that most strategies are capable of outpacing high rates of sea-level rise, creating wetlands, flood water storage, and opportunities for agriculture, aquaculture, housing, or recreational land use. Combinations of multiple SES are likely the most effective and sustainable method for maintaining elevation in river deltas.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geosciences, Multidisciplinary
Silke A. J. Tas, Dirk S. van Maren, Ad J. H. M. Reniers
Summary: In this paper, the formation of cheniers through wave winnowing is explored using Delft3D. The study identifies three phases of chenier development: winnowing phase, sand transport phase, and crest formation phase. The main driving mechanism for onshore sand transport is wave asymmetry. Chenier formation does not require extreme storm conditions and is a relatively slow process.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Environmental Sciences
Nivedita Sanwlani, Elizabeth Wing-See Wong, Kyle Morgan, Soo Chin Liew, Patrick Martin
Summary: This study assessed light quality and ecological risks in Southeast Asian waters, finding poor light conditions in Sumatran coastal waters and the central Malacca Strait, which may have damaging effects on coastal habitats. A comprehensive ecological risk assessment is recommended for effective management of marine ecosystems.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
D. S. van Maren, J. G. W. Beemster, Z. B. Wang, Z. H. Khan, R. A. Schrijvershof, A. J. F. Hoitink
Summary: Globally, intertidal areas are being reclaimed for agriculture and urban expansion, resulting in high human pressure on the coastal zone. The Ganges-Brahmaputra Delta is a prime example of this development. A study on the southwest GBD reveals how land reclamation leads to tidal amplification, channel shoaling, bank erosion, and interaction between channels. Positive feedback mechanisms, such as immediate loss of tidal storage and asynchronous reclamation, contribute to pluvial flooding, bank erosion, and poorly navigable waterways. Intervention measures need to consider these complex feedback mechanisms and adopt nature-based and holistic approaches.
Article
Geosciences, Multidisciplinary
A. Colina Alonso, D. S. van Maren, P. M. J. Herman, R. J. A. van Weerdenburg, Y. Huismans, S. J. Holthuijsen, L. L. Govers, A. I. Bijleveld, Z. B. Wang
Summary: This study aims to increase the understanding of processes driving the sediment composition in tidal basins, and shows that bed sediments in the Wadden Sea tend to be either mud-dominated or sand-dominated, resulting in a bimodal distribution of the mud content. The bimodality is not only specific to the Wadden Sea but can also be expected in other systems worldwide.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Marine
Zaiyang Zhou, Jianzhong Ge, Dirk Sebastiaan van Maren, Jinghua Gu, Pingxing Ding, Zhengbing Wang
Summary: This study develops a simplified method to measure erosion and deposition parameters at a water-bed interface and applies it to observations in the Changjiang estuary. It also proposes a visual diagram to illustrate the interdependency of erosion and deposition parameters.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
R. A. Schrijvershof, D. S. van Maren, P. J. J. F. Torfs, A. J. F. Hoitink
Summary: Existing tidal input reduction approaches fail to represent extreme tidal conditions and intertidal dynamics. This study develops a generic method to construct a synthetic spring-neap tidal cycle that accurately represents the original signal. The new approach improves the representation of tidal wave shape, intertidal dynamics, and residual sand transport patterns, allowing for a more realistic assessment of erosion and deposition.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Geosciences, Multidisciplinary
D. S. van Maren, A. Colina Alonso, A. Engels, W. Vandenbruwaene, P. L. M. de Vet, J. Vroom, Z. B. Wang
Summary: Many estuaries and tidal basins are affected by human interventions, leading to changes in hydrodynamics and morphology. This paper develops and applies a methodology to estimate the response timescales of human interventions using available data. The method has been applied in the Dutch Wadden Sea and the Scheldt and Ems estuaries.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
A. Colina Alonso, D. S. van Maren, R. J. A. van Weerdenburg, Y. Huismans, Z. B. Wang
Summary: This study enhances our understanding of coastal evolution by investigating the effects of sand-mud interaction on the long-term evolution of tidal basins. The results show that accounting for sand-mud interaction can significantly improve the accuracy of model predictions, especially in terms of sediment composition of intertidal flats. The study also provides guidelines for improving model parameterization and validation based on real-life systems.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Environmental Sciences
Chunyan Zhu, Yuning Zhang, Dirk Sebastiaan van Maren, Weiming Xie, Leicheng Guo, Xianye Wang, Qing He
Summary: The sediment load in the Yangtze River downstream of the Three Gorges Dam has decreased significantly in recent decades, with a higher decrease observed below the dam. The Dongting and Poyang Lakes have shifted from sedimentation to erosion and then back to sedimentation regimes, with the Dongting Lake being influenced by morphodynamic adaptation and sand mining, and the Poyang Lake being predominantly affected by sand mining. These lakes have contributed to the sediment recovery in the erosion regime, but their buffer effects might be overestimated. River management and restoration should consider the interactions and feedback impacts between the river and lakes over decadal time scales.
ANTHROPOCENE COASTS
(2023)
Article
Geosciences, Multidisciplinary
Dirk S. van Maren, Christian Maushake, Jan-Willem Mol, Daan van Keulen, Jens Juerges, Julia Vroom, Henk Schuttelaars, Theo Gerkema, Kirstin Schulz, Thomas H. Badewien, Michaela Gerriets, Andreas Engels, Andreas Wurpts, Dennis Oberrecht, Andrew J. Manning, Taylor Bailey, Lauren Ross, Volker Mohrholz, Dante M. L. Horemans, Marius Becker, Dirk Post, Charlotte Schmidt, Petra J. T. Dankers
Summary: The Ems-Dollard Measurements (EDoM) campaign conducted an extensive field investigation in the Ems Estuary, bordering the Netherlands and Germany, to gain a better understanding of the mechanisms driving water and sediment exchange between an exposed outer estuary and a hyper-turbid tidal river. The study revealed that sediment exchange and density-driven flows are highly sensitive to variations in river discharge, highlighting the importance for the sustainable development of shallow coastal ecosystems.
EARTH SYSTEM SCIENCE DATA
(2023)
Proceedings Paper
Geosciences, Multidisciplinary
Chen Guang Hou, Ken Yoong Lee, Soo Chin Liew, Leong Keong Kwoh
Summary: In this study, a fully automatic persistent scatterer interferometry (PS-InSAR) framework was developed to process large-volume Sentinel-1 data. It utilizes open-source software packages and high-performance computing clusters to reduce processing time and provide visual interfaces for monitoring and analyzing ground deformation.
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022)
(2022)
Proceedings Paper
Geosciences, Multidisciplinary
Soo Chin Liew
Summary: We propose a new algorithm for retrieving fire temperature and radiative power using the short-wave infrared (SWIR) bands of high resolution satellite sensors. The algorithm overcomes the challenge of large solar input compared to thermal emission from fires by modeling the unknown ground reflectance. The algorithm is evaluated using a synthetic dataset that includes atmospheric effects and shows a high correlation between the retrieved fire temperature and radiative power with the actual values.
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022)
(2022)
