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您的检索式：作者名="Marcel Stive"
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| 1 | Aggregated morphodynamic modelling of tidal inlets and estuaries显示文摘Aggregation is used to represent the real world in a model at an appropriate level of abstraction.We 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 environment.We 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 model.All such models are therefore aggregated and make use of some empirical relationships to deal with sub-scale processes.One 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. | Zheng Bing Wang Ian Townend Marcel Stive | 2020 | Water Science and Engineering2020，13，1： | 1 |
| 2 | Process-based modeling of the overflow-induced growth of erosional channels显示文摘 | THIEU Q T MARCEL J F STIVE H J | 2008 | Coastal Engineering2008，55，： | 1 |
| 3 | Development and Extension of An Aggregated Scale Model: Part 1–Background to ASMITA显示文摘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 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.Highlights ? The concept of aggregating model scales is explored and the basis of the ASMITA model is outlined in detail; ? The relationship between dispersion as used in fast-scale process-based models and the horizontal exchange used in aggregated models is explored; ? The basis for formulating suitable equilibrium relationships is explained; ? Alternative ways to include advection and dispersion are examined. | Ian TOWNEND Zheng Bing WANG Marcel STIVE Zeng ZHOU | 2016 | China Ocean Engineering2016，30，4： | 0 |
| 4 | Development and Extension of An Aggregated Scale Model:Part 2-Extensions to ASMITA显示文摘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. Highlights A range of extensions to the original ASMITA model are presented that allow additional processes or features to be represented in the model. The merits of ever increasing complexity within an aggregated model, versus the use of a suitable local-scale and more detailed process-based model are discussed. | Ian TOWNEND Zheng Bing WANG Marcel STIVE Zeng ZHOU | 2016 | China Ocean Engineering2016，30，5： | 0 |
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