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Development and extension of an aggregated scale model: Part 1 – Background to ASMITA

Development and extension of an aggregated scale model: Part 1 – Background to ASMITA
Development and extension of an aggregated scale model: Part 1 – Background to ASMITA
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.
estuary, tidal inlet, morphology, tides, waves, sediment transport
0890-5487
483-504
Townend, Ian
f72e5186-cae8-41fd-8712-d5746f78328e
Wang, Zheng Bing
0bf73ba6-eed4-4ebe-8175-929d35912e3d
Stive, Marcel
0a2f8283-05bd-4557-9867-a9ba5d03922b
Zhou, Zeng
a167cd81-84c7-4e55-9e28-4529e26e7c01
Townend, Ian
f72e5186-cae8-41fd-8712-d5746f78328e
Wang, Zheng Bing
0bf73ba6-eed4-4ebe-8175-929d35912e3d
Stive, Marcel
0a2f8283-05bd-4557-9867-a9ba5d03922b
Zhou, Zeng
a167cd81-84c7-4e55-9e28-4529e26e7c01

Townend, Ian, Wang, Zheng Bing, Stive, Marcel and Zhou, Zeng (2016) Development and extension of an aggregated scale model: Part 1 – Background to ASMITA. China Ocean Engineering, 30 (4), 483-504. (doi:10.1007/s13344-016-0030-x).

Record type: Article

Abstract

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.

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Ian paper_part1 accepted manuscript.pdf - Accepted Manuscript
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More information

Accepted/In Press date: 16 May 2016
e-pub ahead of print date: 13 August 2016
Published date: 13 August 2016
Keywords: estuary, tidal inlet, morphology, tides, waves, sediment transport
Organisations: Coastal & Shelf Research

Identifiers

Local EPrints ID: 402913
URI: http://eprints.soton.ac.uk/id/eprint/402913
ISSN: 0890-5487
PURE UUID: 0a0ac569-8cf2-4f54-b3c2-bda19d7929da
ORCID for Ian Townend: ORCID iD orcid.org/0000-0003-2101-3858

Catalogue record

Date deposited: 16 Nov 2016 14:41
Last modified: 22 Nov 2021 02:47

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Contributors

Author: Ian Townend ORCID iD
Author: Zheng Bing Wang
Author: Marcel Stive
Author: Zeng Zhou

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