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Aggregated morphodynamic modelling of tidal inlets and estuaries

Water Science and Engineering 2020年第1期13卷 1-13页

作者： Zheng Bing Wang Ian Townend marcel stive Faculty of Civil Engineering and Geosciences Delft University of TechnologyDelft 2600 GAthe Netherlands College of Harbor Coastal and Offshore EngineeringHohai UniversityNanjing 210098China Unit of Marine and Coastal Systems DeltaresDelft 2600 MHthe Netherlands School of Ocean and Earth Sciences University of SouthamptonSouthampton SO143ZHUK

Aggregation is used to represent the real world in a model at an appropriate level of *** used the convection-diffusion equation to examine the implications of aggregation progressing from a three-dimensional(3D)spatial description to a model representing a system as a single box that exchanges sediment with the adjacent *** highlight how all models depend on some forms of parametric closure,which need to be chosen to suit the scale of aggregation adopted in the *** such models are therefore aggregated and make use of some empirical relationships to deal with sub-scale *** such appropriately aggregated model,the model for the aggregated scale morphological interaction between tidal basin and adjacent coast(ASMITA),is examined in more detail and used to illustrate the insight that this level of aggregation can bring to a problem by considering how tidal inlets and estuaries are impacted by sea level rise.

关键词： Tidal inlet and estuary Morphodynamic modelling Aggregation Temporal and spatial scales Sea level rise Sediment transport

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Development and Extension of An Aggregated Scale Model:Part 2-Extensions to ASMITA

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China Ocean Engineering 2016年第5期30卷 651-670页

作者： Ian TOWNEND Zheng Bing WANG marcel stive Zeng ZHOU University of Southampton Southampton S0171B JUK TU Delft Delft 2600 AAThe Netherlands Deltares Delft 2600 MHThe Netherlands Jiangsu Key Laboratory of Coast Ocean Resources Development and Environment Security Hohai UniversityNanjing 210098China

Whilst much attention has been given to models that describe wave, tide and sediment transport processes in sufficient detail to determine the local changes in bed level over a relatively detailed representation of the bathymetry, far less attention has been given to models that consider the problem at a much larger scale （e.g. that of geomorphological elements such as a tidal flat and tidal channel）. Such aggregated or lumped models tend not to represent the processes in detail but rather capture the behaviour at the scale of interest. One such model developed using the concept of an equilibrium concentration is the Aggregated Scale Morphological Interaction between Tidal basin and Adjacent coast （ASMITA）. In a companion paper （Part 1）, we detail the original model and provide some new insights into the concepts of equilibrium, and horizontal and vertical exchange that are key components of this modelling approach. In this paper, we summarise a range of developments that have been undertaken to extend the original model concept, to illustrate the flexibility and power of the conceptual framework. However, adding detail progressively moves the model in the direction of the more detailed process-based models and we give some consideration to the boundary between the two.

关键词： estuary tidal inlet morphology tides waves sediment transport

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维普期刊数据库

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Development and Extension of An Aggregated Scale Model: Part 1–Background to ASMITA

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China Ocean Engineering 2016年第4期30卷 483-504页

作者： Ian TOWNEND Zheng Bing WANG marcel stive Zeng ZHOU University of Southampton Southampton S0171B JUK TU Delfl Delft 2600.44The Netherlands Deltares Delft 2600 MHThe Netherlands Jiangsu Key Laboratory of Coast Ocean Resources Development and Environment Security Hohai UniversityNanjing 210098China

Whilst much attention has been given to models that describe wave, tide and sediment transport processes in sufficient detail to determine the local changes in bed level over a relatively detailed representation of the bathymetry, far less attention has been given to models that consider the problem at a much larger scale （e.g. that of geomorphological elements such as a tidal fiat and tidal channel）. Such aggregated or lumped models tend not to represent the processes in detail but rather capture the behaviour at the scale of interest. One such model developed using the concept of an equilibrium concentration is the Aggregated Scale Morphological Interaction between Tidal basin and Adjacent coast （ASMITA）. In this paper we provide some new insights into the concepts of equilibrium, and horizontal and vertical exchange that are key components of this modelling approach. In a companion paper, we summarise a range of developments that have been undertaken to extend the original model concept, to illustrate the flexibility and power of the conceptual framework. However, adding detail progressively moves the model in the direction of the more detailed process-based models and we give some consideration to the boundary between the two.

关键词： estuary tidal inlet morphology tides waves sediment transport

来源：

维普期刊数据库

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