Searched for: author:"Wang, Z.B."
(1 - 20 of 106)

Pages

document
Maan, D.C. (author), van Prooijen, B.C. (author), Wang, Z.B. (author)
We use the results of a one-dimensional morphodynamic model and the basis of the “Lagrangian equilibrium state” (Maan et al., 2015, https://doi.org/10.1002/2014JF003311) to derive a quantitative relationship between the progradation speed of tidal flats and the suspended sediment concentration in their adjacent waters and show that the speed...
journal article 2019
document
Guo, Leicheng (author), Wang, Z.B. (author), Townend, Ian (author), He, Qing (author)
Tidal wave deformation and tidal asymmetry widely occur in tidal estuaries and lagoons. Tidal asymmetry has been intensively studied because of its controlling role on residual sediment transport and large‐scale morphological evolution. There are several methods available to characterize tidal asymmetry prompting the need for an overview of...
journal article 2019
document
Wang, Z.B. (author), Vandenbruwaene, Wouter (author), Taal, Marcel (author), Winterwerp, J.C. (author)
The records ofHWand LWin the most upper part of the Scheldt Estuary since 1971 have been analysed together with the daily river discharge. The tidal range, the hydraulic head and the ratio between the rising tide period to falling tide period have been determined for investigating the tidal amplification, the water surface slope along the river...
journal article 2019
document
Maan, D.C. (author), van Prooijen, B.C. (author), Zhu, Q. (author), Wang, Z.B. (author)
We apply a 2-D horizontal process-based model (Delft3D) to study the feedback mechanisms that control the long-term evolution of a fringing intertidal flat in the Western Scheldt Estuary. The hydrodynamic model is validated using a comparison with measurements on the intertidal flat and the sediment transport module is calibrated against long...
journal article 2018
document
Zhou, Zeng (author), Coco, Giovanni (author), Townend, Ian (author), Gong, Zheng (author), Wang, Z.B. (author), Zhang, Changkuan (author)
Simple stability relationships are practically useful to provide a rapid assessment of coastal and estuarine landforms in response to human interventions and long‐term climate change. In this contribution, we review a variety of simple stability relationships which are based on the analysis of tidal asymmetry (shortened to “TA”). Most of the...
journal article 2018
document
Luan, Hualong (author), Ding, P (author), Wang, Z.B. (author), Yang, S.L. (author), Lu, Jin You (author)
Morphodynamics of world's river deltas are increasingly affected by human activities, which are of great ecological, economic and social implications. However, impacts of human interventions in deltaic regions are insufficiently<br/>understood, especially superimposed upon diminishing sediment supplies. This study uses the heavily interfered...
journal article 2018
document
Gao, Weilun (author), Shao, Dongdong (author), Wang, Z.B. (author), Nardin, William (author), Yang, Wei (author), Sun, Tao (author), Cui, Baoshan (author)
River mouth bar formation, a key process in fluvial-deltaic morphodynamics, is subject to both river discharge and waves. Given the increasing variability of both forcings under continuous climate change and human interventions, assessing their combined effects on mouth bar formatio n is an imperative issue. In this study, an extensive set of...
journal article 2018
document
Hoitink, A.J.F. (author), Wang, Z.B. (author), Vermeulen, B. (author), Huismans, Y (author), Kästner, K (author)
River delta degradation has been caused by extraction of natural resources, sediment retention by reservoirs, and sea-level rise. Despite global concerns about these issues, human activity in the world’s largest deltas intensifies. Harbour development, construction of flood defences, sand mining and land reclamation emerge as key contemporary...
journal article 2017
document
Li, W. (author), Su, Zhenghua (author), van Maren, D.S. (author), Wang, Z.B. (author), de Vriend, H.J. (author)
The downstream peak discharge increase during hyperconcentrated floods in the Yellow River has been attributed to bed erosion, roughness reduction and floodplain effects. While great improvements have been made on the nderstandings of the roles of bed erosion and roughness reduction, the effects of floodplain remain poorly understood. Here, as a...
journal article 2017
document
Winterwerp, J.C. (author), Vroom, J (author), Wang, Z.B. (author), Krebs, Martin (author), Hendriks, H.C.M. (author), van Maren, D.S. (author), Schrottke, Kerstin (author), Borgsmüller, Christine (author), Schöl, Andreas (author)
In this paper, we analyse the behaviour of fine sediments in the hyper-turbid Lower Ems River, with focus on the river’s upper reaches, a stretch of about 25 km up-estuary of Terborg. Our analysis is based on long records of suspended particulate matter (SPM) from optical backscatter (OBS) measurements close to the bed at seven stations along...
journal article 2017
document
de Vet, P.L.M. (author), van Prooijen, B.C. (author), Wang, Z.B. (author)
Human interventions have a large impact on estuarine morphology. The intertidal flats in the Eastern Scheldt and Western Scheldt estuaries (The Netherlands) have faced substantial morphological changes over the past decades. These changes are thought to be caused by human interventions, such as the construction of the storm surge barrier in the...
journal article 2017
document
Zhu, Q. (author), van Prooijen, B.C. (author), Wang, Z.B. (author), Yang, SL (author)
Short-term bed-level variability in tidal wetlands has important implication both for ecology and engineering. In this study, we combined in situ measurements with model simulations to quantify short-term bed-level changes on a meso-macrotidal wetland in the Yangtze River Delta. On the middle flat, we observed erosion during neap-to-mean tides...
journal article 2017
document
van Prooijen, B.C. (author), Grasso, F (author), le Hir, P (author), de Vet, P.L.M. (author), Wang, Z.B. (author), Walles, B (author), Ysebaert, Tom (author)
Fringing intertidal flats are common features of elongated estuaries. We generalized the geometry of profiles of individual intertidal flats towards a common relationship, based on extensive measurement data of various estuaries. We found a strong linear relation between the width, slope and height of linear intertidal flat profiles, which also...
abstract 2017
document
Gatto, V.M. (author), van Prooijen, B.C. (author), Wang, Z.B. (author)
Net sediment transport in tidal basins is a subtle imbalance between large fluxes produced by the flood/ebb alternation. The imbalance arises from several mechanisms of suspended transport. Lag effects and tidal asymmetries are regarded as dominant, but defined in different frames of reference (Lagrangian and Eulerian, respectively). A...
journal article 2017
document
Xie, DF (author), Pan, CH (author), Wu, Xiuguang (author), Gao, S (author), Wang, Z.B. (author)
The research objective is to investigate the variations of sediment transport in outer Changjiang Estuary and adjacent Hangzhou Bay, induced by the decline of Changjiang River sediment discharge and massive land reclamation in the last three decades. A synchronous hydrographic survey was conducted along two transects (at the bay-mouth and outer...
journal article 2017
document
Zhu, C. (author), Guo, L (author), Tian, B. (author), He, Q (author), Wang, Z.B. (author)
Estuarine morphodynamics undergo significant changes due to declined sediment supply from river, rising sea-level, and human interferences (Syvitski and Saito, 2007; Syvitski et al., 2009). The Yangtze Estuary is such a case whose decadal morphodynamic evolution was broadly examined. It was documented that the subaqueous delta shifted from...
abstract 2017
document
de Vet, P.L.M. (author), van Prooijen, B.C. (author), Schrijvershof, R. (author), van der Werf, JJ (author), Schrijver, MC (author), Wang, Z.B. (author)
The flow velocities in tidal channels are already rather complex by the presence of various tidal components, wind driven flow and estuarine circulations. An extra level of complexity is introduced when the flow on top of an intertidal<br/>flat is considered (Le Hir, 2000). This research aims at understanding the complex flow patterns on top of...
abstract 2016
document
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
document
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
document
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
Searched for: author:"Wang, Z.B."
(1 - 20 of 106)

Pages