Small-Scale Submerged Breakwater Testing to Protect a Rio De Janeiro Beach
Publication: Geo-Extreme 2021
ABSTRACT
The purpose of this paper is to investigate the vulnerability of Leme Beach, in the city of Rio de Janeiro, Brazil, to the risk of sand erosion and high-tide effects in the urban infrastructure provoked by sea level rises as consequence of climate change. Several tests were carried out with small-scale models in a wave channel, considering different sea levels and significant wave heights generated by storms at recurrence periods of one, ten, and one hundred years. Considering the current profile of Leme Beach, the effects of sea level rise may cause beach erosion, with seawater surpassing the waterfront ridge, invading the residential buildings situated nearby and depositing large amounts of sand on the seaside avenue. To mitigate these effects, the efficiency of submerged concrete breakwaters was investigated through a series of tests in small-scale models. The results suggest that Leme Beach is quite vulnerable to a sea level rise, combined with the occurrence of storms that could generate waves greater than 3 m high.
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REFERENCES
Campos, R. M., Parente, C. E., and Camargo, R. (2008). Analysis of extreme events due to rise of the average sea level in the coast of Rio de Janeiro. III Brazilian Congress of Oceanography, Fortaleza, Ceará (in Portuguese).
Doig, A., and Ware, J. (2016). Act Now or Pay Later: Protecting a billion people in climate-threatened coastal cities, Christian Aid, p.16. Available on https://www.christianaid.org.uk/resources/about-us/act-now-or-pay-later-protecting-people-coastal-cities.
GeoEye-1 Satellite Image. (2020). Copacabana Beach. Available on https://www.satimagingcorp.com.
Google Images. (2012). Leme Antigo. Available on http://lemeantigo.blogspot.com.
Hasselmann, K., Barnett, T. P., Bouws, E., Carlson, D. E., Cartwright, D. E., Enke, K., Ewing, J. A., Gienapp, H., Hasselmann, D. E., Kruseman, P., Meerburg, A., Muller, P., Olbers, D. J., Richter, K., Sell, W., and Walden, H. (1973). Measurements of Wind Wave Growth and Swell Decay during the Joint North Sea Wave Project. Deutsches Hydrographische Zeitschrift), v.8, n.12, p.1–95.
IBGE (Brazilian Institute of Geography and Statistics). (2015). Population arrangements and urban concentrations in Brazil, 167p., ISBN 978-85-240-4406-9. https://biblioteca.ibge.gov.br/visualizacao/livros/liv99700.pdf.
INPH (Brazilian Institute for Waterway Research). (1999). Campanha de medição de ondas na praia de Ipanema, Rio de Janeiro, Rio de Janeiro (in Portuguese).
IPCC (Intergovernmental Panel on Climate Change). (2014). : Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, 151p, ISBN: 978-92-9169-143-2.
Machado, G. A. (2016). Sea wave energy in urban coastal areas: a case study in the neighborhood of Leme, Rio de Janeiro. Master’s Thesis, PUC-Rio, 101 p.
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© 2021 American Society of Civil Engineers.
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Published online: Nov 4, 2021
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