Multitemporal analysis of coastal erosion based on multisource satellite images, Ponta Negra beach, Natal City, Northeastern Brazil

dc.contributor.authorScudelari, Ada Cristina
dc.contributor.authorAmaro, Venerando Eustáquio
dc.contributor.authorGomes, Lívian Rafaely Santana
dc.contributor.authorLima, Francisco Gabriel Ferreira
dc.contributor.authorNeves, Cláudio Freitas
dc.contributor.authorBusman, Débora Vieira
dc.contributor.authorSantos, André Luís Silva
dc.date.accessioned2020-10-05T18:48:12Z
dc.date.available2020-10-05T18:48:12Z
dc.date.issued2014-06-19
dc.description.resumoThis paper describes the use of moderate and high-resolution remote sensing images integrated with a Geographic Information System to evaluate the sedimentary balance and morphological changes seen on the sandy beach of Ponta Negra in northeastern Brazil. High-energy forces such as wind, tides, waves, and currents cause widespread erosion and morphodynamic instability along the shoreline. This investigation uses diverse images from multitemporal and multiresolution analyses and a Post-Processing Kinematic Global Positioning System (PPK GPS) survey as the primary resources to study the short and long-term effects of shoreline changes and the processes controlling the persistent horizontal and vertical erosion on the beach. We used moderate-resolution remote sensing images from 1973 to 2012 and high-resolution images from 2003 to 2011. Between 1973 and 2012 a total area of 121,494.52 m2 was affected by erosion and 37,266.58 m2 was affected by accretion. Shoreline progradation rates of 4.2 m/year and recession rates of -3.7 m/year were estimated for the period between 1973 and 1986 and mean erosion rates of 1.5 m/year were estimated from 1986 to 2012. Digital Elevation Model (DEM) comparison resulting from different PPK GPS surveys showed a negative sediment balance of approximately -3,261.94 m3 in a plot of 12,500 m2 between May and September 2012. The coast has also been facing a drastically increased human influence in recent decades. In summary, this article aims to contribute information to support the mitigation of coastal erosion and to protect seaside infrastructurept_BR
dc.identifier.citationAMARO, Venerando Eustáquio; GOMES, Lívian Rafaely Santana; LIMA, Francisco Gabriel Ferreira de; SCUDELARI, Ada Cristina; NEVES, Cláudio Freitas; BUSMAN, Débora Vieira; SANTOS, André Luís Silva. Multitemporal analysis of coastal erosion based on multisource satellite images, Ponta Negra beach, Natal city, Northeastern Brazil. Marine Geodesy, [S.L.], v. 38, n. 1, p. 1-25, 19 jun. 2014. Disponível em: https://www.tandfonline.com/doi/abs/10.1080/01490419.2014.904257. Acessp em: 25 set. 2020. http://dx.doi.org/10.1080/01490419.2014.904257.pt_BR
dc.identifier.doi10.1080/01490419.2014.904257
dc.identifier.issn0149-0419
dc.identifier.issn1521-060X
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/30261
dc.languageenpt_BR
dc.publisherTaylor and Francispt_BR
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/br/*
dc.subjectDigital elevation modelpt_BR
dc.subjectPPK GPSpt_BR
dc.subjectRemote sensingpt_BR
dc.subjectShoreline detectionpt_BR
dc.titleMultitemporal analysis of coastal erosion based on multisource satellite images, Ponta Negra beach, Natal City, Northeastern Brazilpt_BR
dc.typearticlept_BR

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