Morphodynamic modeling of tidal channel evolution in comparison to empirical PA relationship

2010 ◽  
pp. 93-113
Keyword(s):  
Tidal Channel ◽  
Channel Evolution ◽  
Morphodynamic Modeling

Morphodynamic modeling of tidal channel evolution in comparison to empirical PA relationship

2010 ◽  
Vol 57 (9) ◽  
pp. 827-837 ◽  
Author(s):  
M. van der Wegen ◽  
A. Dastgheib ◽  
J.A. Roelvink
Keyword(s):  
Tidal Channel ◽  
Channel Evolution ◽  
Morphodynamic Modeling

Bio-geomorphic effects on tidal channel evolution: impact of vegetation establishment and tidal prism change

2012 ◽  
Vol 38 (2) ◽  
pp. 122-132 ◽  
Author(s):  
Wouter Vandenbruwaene ◽  
Tjeerd J. Bouma ◽  
Patrick Meire ◽  
Stijn Temmerman
Keyword(s):  
Tidal Channel ◽  
Tidal Prism ◽  
Channel Evolution ◽  
Vegetation Establishment

The Role of Collapsed Bank Soil on Tidal Channel Evolution: A Process‐Based Model Involving Bank Collapse and Sediment Dynamics

2019 ◽  
Vol 55 (11) ◽  
pp. 9051-9071 ◽  
Author(s):  
K. Zhao ◽  
Z. Gong ◽  
F. Xu ◽  
Z. Zhou ◽  
C. K. Zhang ◽  
...  
Keyword(s):  
Sediment Dynamics ◽  
Tidal Channel ◽  
Channel Evolution ◽  
Bank Collapse

Improvement of morphodynamic modeling of tidal channel migration by nudging

2013 ◽  
Vol 77 ◽  
pp. 1-13 ◽  
Author(s):  
Kai Chu ◽  
Christian Winter ◽  
Dierk Hebbeln ◽  
Michael Schulz
Keyword(s):  
Tidal Channel ◽  
Channel Migration ◽  
Morphodynamic Modeling

scholarly journals SIMULATING THE FORMATION OF TIDAL CHANNELS ALONG AN OPEN-COAST TIDAL FLAT: THE EFFECTS OF INITIAL PERTURBATION

2018 ◽  
pp. 84
Author(s):  
Ying Zhang ◽  
Zeng Zhou ◽  
Liang Geng ◽  
Giovanni Coco ◽  
Jianfeng Tao ◽  
...  
Keyword(s):  
Tidal Flat ◽  
State Of The Art ◽  
Initial Perturbation ◽  
Tidal Channel ◽  
Tidal Channels ◽  
Medium Term ◽  
Short Term ◽  
Critical Range ◽  
Morphodynamic Modeling ◽  
Perturbation Magnitude

A state-of-the-art morphodynamic model (Delft3D) was used to explore the effects of bathymetric perturbation on the morphodynamic modeling of tidal channels and flats. Short-term and medium-term modeling results indicate that the two-way interaction of the hydrodynamic forcing and initial perturbation has influence on the evolution of tidal channel ontogeny. There is a critical range of the magnitude of initial perturbation, within which the morphodynamic development tends to be similar. By comparing with the case without initial perturbation, the case with a slight increase in perturbation magnitude can considerably enhance the rate of the morphodynamic development.

scholarly journals MORPHODYNAMIC MODELING OF THE MEDIUM-TERM MIGRATION OF A TIDAL CHANNEL USING PROCESS-BASED MODEL

2011 ◽  
Vol 1 (32) ◽  
pp. 70
Author(s):  
Diem Nguyen ◽  
Talal Etri ◽  
Karl-Heinz Runte ◽  
Roberto Mayerle
Keyword(s):  
Field Measurements ◽  
Tidal Channel ◽  
Medium Term ◽  
Calibration And Validation ◽  
Sediment Fraction ◽  
Morphodynamic Modeling ◽  
Set Up ◽  
Temporal Coverage ◽  
Selection Of ◽  
Process Based Models

This paper investigates the predictive capability of a morphodynamic model in capturing the development of a tidal channel on the German North Sea coast which experienced migration in the last few years. A depth-averaged version of a process-based model, Delft3D, is used. A description of the set-up, calibration and validation of the process-based models is presented. Field measurements with a dense spatial and temporal coverage were used for the development of the models. Results from the hydrodynamic and sediment transport simulations were in agreement with observations. The morphodynamic model simulations were speeded up with a morphological acceleration factor in conjunction with a representative period. Results of model calibration and validation covering periods of several years proved the capability of the model to reproduce the migration of the tidal channel. According to the standards usually adopted for checking the accuracy of morphodynamic models, the performance of the model presented here was quite good. The model ability in predicting the migration in the medium-term was found to be dependent primarily on the accuracy of the starting bathymetry, characteristics of the substrata and of the mud sediment fraction as well as on the selection of the representative period. A reduction in the rate of migration of the tidal channel is predicted from 2008 till 2010.

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