Modelling the effects of shoal attachment on dune growth

Filipe Galiforni Silva; Kathelijne M. Wijnberg; Alma V. De Groot; Suzanne J.M.H. Hulscher

doi:10.1142/9789811204487_0110

Modelling the effects of shoal attachment on dune growth

Filipe Galiforni Silva, Kathelijne M. Wijnberg, Alma V. De Groot, Suzanne J.M.H. Hulscher

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Academic › peer-review

Abstract

A cellular automata model is used to evaluate the impact of shoal attachment processes on dune growth. We explore ten different idealized scenarios of beach width changes due to shoal attachment related to the magnitude of the shoal-driven beach width increase and the rate of dispersion alongshore. For all scenarios, shoals attach the coast with a cyclic period of 15 years in an average beach width of 100 meters. Simulations were carried out for a model time of 90 years. Results show that in only three scenarios, shoal attachment yielded a significant increase in dune growth. Scenarios that significantly changed dune growth presented the slowest rate of spreading and the three largest beach width increase tested. This suggests that local change in dune growth due to shoal attachment are closely related to the shoal capacity of significantly increasing beach width and the longshore capacity of sediment transport.

Original language	English
Title of host publication	Coastal Sediments 2019
Subtitle of host publication	Proceedings of the 9th International Conference
Editors	P. Wang, J.D. Rosati, M. Vallee
Publisher	World Scientific Publishing
Pages	1260-1268
ISBN (Electronic)	9789811204487
DOIs	https://doi.org/10.1142/9789811204487_0110
Publication status	Published - 16 May 2019

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10.1142/9789811204487_0110

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title = "Modelling the effects of shoal attachment on dune growth",

abstract = "A cellular automata model is used to evaluate the impact of shoal attachment processes on dune growth. We explore ten different idealized scenarios of beach width changes due to shoal attachment related to the magnitude of the shoal-driven beach width increase and the rate of dispersion alongshore. For all scenarios, shoals attach the coast with a cyclic period of 15 years in an average beach width of 100 meters. Simulations were carried out for a model time of 90 years. Results show that in only three scenarios, shoal attachment yielded a significant increase in dune growth. Scenarios that significantly changed dune growth presented the slowest rate of spreading and the three largest beach width increase tested. This suggests that local change in dune growth due to shoal attachment are closely related to the shoal capacity of significantly increasing beach width and the longshore capacity of sediment transport.",

author = "{Galiforni Silva}, Filipe and Wijnberg, {Kathelijne M.} and {De Groot}, {Alma V.} and Hulscher, {Suzanne J.M.H.}",

year = "2019",

month = may,

day = "16",

doi = "10.1142/9789811204487_0110",

language = "English",

pages = "1260--1268",

editor = "P. Wang and J.D. Rosati and M. Vallee",

booktitle = "Coastal Sediments 2019",

publisher = "World Scientific Publishing",

address = "Singapore",

}

Modelling the effects of shoal attachment on dune growth. / Galiforni Silva, Filipe; Wijnberg, Kathelijne M.; De Groot, Alma V. et al.
Coastal Sediments 2019: Proceedings of the 9th International Conference. ed. / P. Wang; J.D. Rosati; M. Vallee. World Scientific Publishing, 2019. p. 1260-1268.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Academic › peer-review

TY - GEN

T1 - Modelling the effects of shoal attachment on dune growth

AU - Galiforni Silva, Filipe

AU - Wijnberg, Kathelijne M.

AU - De Groot, Alma V.

AU - Hulscher, Suzanne J.M.H.

PY - 2019/5/16

Y1 - 2019/5/16

N2 - A cellular automata model is used to evaluate the impact of shoal attachment processes on dune growth. We explore ten different idealized scenarios of beach width changes due to shoal attachment related to the magnitude of the shoal-driven beach width increase and the rate of dispersion alongshore. For all scenarios, shoals attach the coast with a cyclic period of 15 years in an average beach width of 100 meters. Simulations were carried out for a model time of 90 years. Results show that in only three scenarios, shoal attachment yielded a significant increase in dune growth. Scenarios that significantly changed dune growth presented the slowest rate of spreading and the three largest beach width increase tested. This suggests that local change in dune growth due to shoal attachment are closely related to the shoal capacity of significantly increasing beach width and the longshore capacity of sediment transport.

AB - A cellular automata model is used to evaluate the impact of shoal attachment processes on dune growth. We explore ten different idealized scenarios of beach width changes due to shoal attachment related to the magnitude of the shoal-driven beach width increase and the rate of dispersion alongshore. For all scenarios, shoals attach the coast with a cyclic period of 15 years in an average beach width of 100 meters. Simulations were carried out for a model time of 90 years. Results show that in only three scenarios, shoal attachment yielded a significant increase in dune growth. Scenarios that significantly changed dune growth presented the slowest rate of spreading and the three largest beach width increase tested. This suggests that local change in dune growth due to shoal attachment are closely related to the shoal capacity of significantly increasing beach width and the longshore capacity of sediment transport.

U2 - 10.1142/9789811204487_0110

DO - 10.1142/9789811204487_0110

M3 - Conference paper

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EP - 1268

BT - Coastal Sediments 2019

A2 - Wang, P.

A2 - Rosati, J.D.

A2 - Vallee, M.

PB - World Scientific Publishing

ER -

Modelling the effects of shoal attachment on dune growth

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