Searched for: department%3A%22Hydraulic%22
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Kuai, Y. (author), Aarninkhof, S.G.J. (author), Wang, Zhengbing (author)
Intertidal flats are of great socio-economic and ecological importance in defending the coastal cities from flooding, providing resources for land reclamations and habits for wildlife. On the intertidal flats, milder profiles are usually featured with finer sediment. However, we find the opposite relationship between the alongshore variation in...
journal article 2023
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Guo, Leicheng (author), Zhu, Chunyan (author), Cai, Huayang (author), Wang, Zhengbing (author), Townend, Ian (author), He, Qing (author)
River discharge is known to enhance tidal damping and tidal wave deformation in estuaries. While the damping effect on astronomical tides has been well documented, river impact on tidal wave deformation and associated overtide generation (shallow water harmonics of one or more astronomical constituents, such as M<sub>4</sub>) remains...
journal article 2023
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Zhan, Y.J. (author), Aarninkhof, S.G.J. (author), Wang, Zhengbing (author), Zhou, Yunxuan (author)
Tidal flats play an important role in the geomorphological and biological dynamics of coasts. Research on the morphological evolution of tidal flats constitutes one of the key research issues pertaining to the sustainability of coastal ecosystems and related coastal defense issues. In this work, a novel indicator, the surface tidal trail (STT...
journal article 2022
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Zhan, Y.J. (author), Aarninkhof, S.G.J. (author), Wang, Zhengbing (author), Zhou, Yunxuan (author)
Research on the expansion pattern of pioneer vegetation in tidal flats is important, because this pattern affects the development of both topography and ecology. This study aimed to determine the monthly expansion patterns of seedlings and tussocks by using terrestrial laser scanning (TLS). Overall change process research and spatial analyses...
journal article 2022
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Kuai, Y. (author), Tao, Jianfeng (author), Zhou, Z. (author), Aarninkhof, S.G.J. (author), Wang, Zhengbing (author)
Tidal flats play an important role in promoting coastal biodiversity, defense against flooding, land reclamation and recreation. Many coastal tidal flats, especially the tide-dominant ones, are muddy. However, the number of studies on the profile shape and surficial sediment distribution of muddy tidal flats is small compared to sandy beaches....
journal article 2021
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Muller, J.R.M. (author), Chen, Yong ping (author), Aarninkhof, S.G.J. (author), Chan, Ying chi (author), Piersma, Theunis (author), van Maren, D.S. (author), Tao, Jian feng (author), Wang, Zhengbing (author), Gong, Zheng (author)
China's continuous and rapid economic growth has led to the reclamation of large sections of the intertidal mud coast in combination with port construction, such as that of the proposed Tongzhou Bay port on the Jiangsu coast. These reclamations threaten the local ecosystem services. An ecotope distribution map was created and a hydrodynamic...
journal article 2020
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Muller, J.R.M. (author), Chan, Ying Chi (author), Piersma, Theunis (author), Chen, Yong Ping (author), Aarninkhof, S.G.J. (author), Hassell, Chris J. (author), Tao, Jian Feng (author), Gong, Zheng (author), Wang, Zhengbing (author), van Maren, D.S. (author)
The fast economic development of the People's Republic of China has created an increasing demand for usable land, resulting in large-scale land reclamations along the coastal zone. One of these regions is Tongzhou Bay (Jiangsu coast), a region characterized by large intertidal mudflats and deep tidal channels with potential for the...
journal article 2020
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Maan, D.C. (author), van Prooijen, B.C. (author), Wang, Z.B. (author), de Vriend, H.J. (author)
Various studies have identified a strong relation between the hydrodynamic forces and the equilibrium profile for intertidal flats. A thorough understanding of the interplay between the hydrodynamic forces and the morphology, however, concerns more than the equilibrium state alone. We study the basic processes and feedback mechanisms underlying...
journal article 2015
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Hu, Z. (author), Wang, Z.B. (author), Zitman, T.J. (author), Stive, M.J.F. (author), Bouma, T.J. (author)
Dynamic equilibrium theory is a fruitful concept, which we use to systematically explain the tidal flat morphodynamic response to tidal currents, wind waves, sediment supply, and other sedimentological drivers. This theory stems from a simple analytical model that derives the tide- or wave-dominated tidal flat morphology by assuming that...
journal article 2015
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Hu, Z. (author), Van Belzen, J. (author), Van der Wal, D. (author), Balke, T. (author), Wang, Z.B. (author), Stive, M.J.F. (author), Bouma, T.J. (author)
Understanding the mechanisms limiting and facilitating salt marsh vegetation initial establishment is of widespread importance due to the many valuable services salt marsh ecosystems offer. Salt marsh dynamics have been investigated by many previous studies, but the mechanisms that enable or disable salt marsh initial establishment are still...
journal article 2015
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Guo, L. (author), Van der Wegen, M. (author), Jay, D.A. (author), Matte, P. (author), Wang, Z.B. (author), Roelvink, J.A. (author), He, Q. (author)
River-tide dynamics remain poorly understood, in part because conventional harmonic analysis (HA) does not cope effectively with nonstationary signals. To explore nonstationary behavior of river tides and the modulation effects of river discharge, this work analyzes tidal signals in the Yangtze River estuary using both HA in a nonstationary mode...
journal article 2015
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Yu, Q. (author), Wang, Y. (author), Gao, J. (author), Gao, S. (author), Flemming, B. (author)
Traditionally, vertical circulation (induced by gravity circulation and tidal straining), tidal pumping, and resuspension are suggested as the major processes for the formation and maintenance of the estuarine turbidity maximum (ETM). Due to strong mixing, tidal pumping is considered as the dominating process in macrotidal estuaries. To analyze...
journal article 2014
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Fu, C. (author), Popescu, I. (author), Wang, C. (author), Mynett, A.E. (author), Zhang, F. (author)
During winter the Yellow River in China is frequently subjected to ice flood disasters. Possible dike breaking due to ice floods poses a serious threat to the part of the region located along the river, in particular the Ning–Meng reach (including Ningxia Hui and the Inner Mongolia autonomous regions). Due to its special geographical location...
journal article 2014
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Fu, C. (author), Popescu, I. (author), Wang, C. (author), Mynett, A.E. (author), Zhang, F. (author)
During winter the Yellow River in China is frequently subjected to ice flood disasters. Possible dike-breaking due to ice floods poses a serious threat to the part of the region located along the river, in particular the Ning-Meng reach (including Ningxia Hui and the Inner Mongolia Autonomous Region). Due to its special geographical location and...
journal article 2013
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Li, W. (author), De Vriend, H.J. (author), Wang, Z. (author), Van Maren, D.S. (author)
High-resolution morphological modeling of fluvial processes with complex, rapidly varying flows has been limited so far by model accuracy or computational efficiency. One of the most widely used numerical algorithms is based on the total variation diminishing method, solved by either upwind or centered approaches. An upwind scheme preserves high...
journal article 2013
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Zhu, Y. (author), Visser, P.J. (author), Vrijling, J.K. (author), Wang, G.Q. (author)
Breaching of embankments has recently drawn more and more attention due to its importance in the development of early warning systems for embankment failures, in the evacuation plans of people at risk, in the design method of embankments based on a risk-approach, etc. The erosion process observed during embankment breaching tests in the...
journal article 2011
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De Vriend, H.J. (author), Wang, Z.B. (author), Ysebaert, T. (author), Herman, P.M.J. (author), Ding, P. (author)
This paper compares the Yangtze Estuary in China and the Western Scheldt Estuary in The Netherlands by their morphodynamic and ecological systems, their engineering works and estuarine management issues, and the major challenges in studying them. Physically speaking, the two estuaries are very different. The Yangtze Estuary is much larger and...
journal article 2011
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Lam, N.T. (author), Stive, M.J.F. (author), Wang, Z.B. (author), Verhagen, H.J. (author), Thuy, V.T.T. (author)
Hydrodynamics and morphodynamics of a seasonally forced tidal inlet system are investigated using numerical models. The ocean forcing including tidal and wave actions and sediment transport is simulated using Delft3D model. Fluvial processes in Delft3D are taken into account as results from SOBEK RURAL model. Analysis of the numerical simulation...
journal article 2008
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Van der Wegen, M. (author), Wang, Z.B. (author), Savenije, H.H.G. (author), Roelvink, J.A. (author)
The morphodynamic system in alluvial, coastal plain estuaries is complex and characterized by various timescales and spatial scales. The current research aims to investigate the interaction between these different scales as well as the estuarine morphodynamic evolution. Use is made of a process-based, numerical model describing 2-D shallow water...
journal article 2008
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Wang, W. (author), Van Gelder, P.H.A.J.M. (author), Vrijling, J.K. (author), Ma, J. (author)
Conventional streamflow models operate under the assumption of constant variance or season-dependent variances (e.g. ARMA (AutoRegressive Moving Average) models for deseasonalized streamflow series and PARMA (Periodic AutoRegressive Moving Average) models for seasonal streamflow series). However, with McLeod-Li test and Engle's Lagrange...
journal article 2005
Searched for: department%3A%22Hydraulic%22
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