Vulnerability of sandy coasts to climate variability. Idier, D., Castelle, B., Poumadère, M., Balouin, Y., Bertoldo, R. B., Bouchette, F., Boulahya, F., Brivois, O., Calvete, D., Capo, S., Certain, R., Charles, E., Chateauminois, E., Delvallée, E., Falqués, A., Fattal, P., Garcin, M., Garnier, R., Héquette, A., Larroudé, P., Lecacheux, S., Cozannet, G. L., Maanan, M., Mallet, C., Maspataud, A., Oliveros, C., Paillart, M., Parisot, J., Pedreros, R., Robin, N., Robin, M., Romieu, E., Ruz, M., Thiébot, J., & Vinchon, C. 57(1):19–44. Number: 1
Vulnerability of sandy coasts to climate variability [link]Paper  doi  abstract   bibtex   
The main objective of the VULSACO (VULnerability of SAndy COasts to climate change and anthropic pressure) project was to investigate present day and potential future vulnerability of sandy coasts at the 2030 horizon, i.e. on a time scale related to climate variability. The method, based on a multidisciplinary approach bringing together geologists, geographers, physicists, social psychologists, engineers and stakeholders, was structured around 4 axes: field data analysis; numerical modelling; analysis of governance and stakeholder perceptions; and development of vulnerability indexes. This approach was designed to investigate vulnerability at a local scale and was applied to 4 contrasting beaches located in France: Sète Lido (Mediterranean Sea), Truc Vert and La Tresson beaches (Atlantic Ocean), and Dewulf (English Channel). The results focus on decadal and multi-annual beach trends at the Truc Vert beach site. There is almost no trend in beach volume at Truc Vert beach, although there is a variation in this parameter on a cycle of 2 to 3 yr, with variations related to wave energy and probably to indexes of climate variability. Numerical modelling identified the sensitivity of beach responses to changes in wave height and direction, especially in terms of subtidal morphology and the potential development of shoreline instability. Together with the observed offshore wave angle at the Biscay Buoy, these model results suggest that a potential change in wave angle due to climate variability could significantly modify the bars’ morphology. The combination of data analysis and numerical modelling contributed to the development of vulnerability indexes designed for sandy coasts, which take into account climate-dependant variables such as waves. This allowed the differentiation of the sites in terms of vulnerability to erosion: Sète Lido and Truc Vert beach were the most and least vulnerable sites, respectively. These indexes help in identifying the dominant components of beach vulnerability, and provide potential for the study of how anthropogenic factors affect vulnerability. The study of stakeholder perceptions and decision-making with regard to climate-related risk  also highlighted potential anthropogenic effects on beach vulnerability, and identified possible site-specific outcomes.
@article{idier_vulnerability_2013,
	title = {Vulnerability of sandy coasts to climate variability},
	volume = {57},
	issn = {0936-577X, 1616-1572},
	url = {https://www.int-res.com/abstracts/cr/v57/n1/p19-44/},
	doi = {10.3354/cr01153},
	abstract = {The main objective of the {VULSACO} ({VULnerability} of {SAndy} {COasts} to climate change and anthropic pressure) project was to investigate present day and potential future vulnerability of sandy coasts at the 2030 horizon, i.e. on a time scale related to climate variability. The method, based on a multidisciplinary approach bringing together geologists, geographers, physicists, social psychologists, engineers and stakeholders, was structured around 4 axes: field data analysis; numerical modelling; analysis of governance and stakeholder perceptions; and development of vulnerability indexes. This approach was designed to investigate vulnerability at a local scale and was applied to 4 contrasting beaches located in France: Sète Lido (Mediterranean Sea), Truc Vert and La Tresson beaches (Atlantic Ocean), and Dewulf (English Channel). The results focus on decadal and multi-annual beach trends at the Truc Vert beach site. There is almost no trend in beach volume at Truc Vert beach, although there is a variation in this parameter on a cycle of 2 to 3 yr, with variations related to wave energy and probably to indexes of climate variability. Numerical modelling identified the sensitivity of beach responses to changes in wave height and direction, especially in terms of subtidal morphology and the potential development of shoreline instability. Together with the observed offshore wave angle at the Biscay Buoy, these model results suggest that a potential change in wave angle due to climate variability could significantly modify the bars’ morphology. The combination of data analysis and numerical modelling contributed to the development of vulnerability indexes designed for sandy coasts, which take into account climate-dependant variables such as waves. This allowed the differentiation of the sites in terms of vulnerability to erosion: Sète Lido and Truc Vert beach were the most and least vulnerable sites, respectively. These indexes help in identifying the dominant components of beach vulnerability, and provide potential for the study of how anthropogenic factors affect vulnerability. The study of stakeholder perceptions and decision-making with regard to climate-related risk  also highlighted potential anthropogenic effects on beach vulnerability, and identified possible site-specific outcomes.},
	pages = {19--44},
	number = {1},
	journaltitle = {Climate Research},
	author = {Idier, Déborah and Castelle, Bruno and Poumadère, Marc and Balouin, Yann and Bertoldo, Raquel Bohn and Bouchette, Frédéric and Boulahya, Faiza and Brivois, Olivier and Calvete, Daniel and Capo, Sylvain and Certain, Raphael and Charles, Elodie and Chateauminois, Eric and Delvallée, Etienne and Falqués, Albert and Fattal, Paul and Garcin, Manuel and Garnier, Roland and Héquette, Arnaud and Larroudé, Philippe and Lecacheux, Sophie and Cozannet, Gonéri Le and Maanan, Mohamed and Mallet, Cyril and Maspataud, Aurélie and Oliveros, Carlos and Paillart, Martin and Parisot, Jean-Paul and Pedreros, Rodrigo and Robin, Nicolas and Robin, Marc and Romieu, Emmanuel and Ruz, Marie-Hélène and Thiébot, Jérôme and Vinchon, Charlotte},
	urldate = {2019-04-15},
	date = {2013-06-13},
	langid = {english},
	note = {Number: 1},
	keywords = {France, Modelling, Field data, Index, Sandy beach, Stakeholders, Truc Vert}
}

Downloads: 0