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

Scudelari, Ada Cristina; Amaro, Venerando Eustáquio; Gomes, Lívian Rafaely Santana; Lima, Francisco Gabriel Ferreira; 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

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dc.contributor.author	Scudelari, Ada Cristina
dc.contributor.author	Amaro, Venerando Eustáquio
dc.contributor.author	Gomes, Lívian Rafaely Santana
dc.contributor.author	Lima, Francisco Gabriel Ferreira
dc.contributor.author	Neves, Cláudio Freitas
dc.contributor.author	Busman, Débora Vieira
dc.contributor.author	Santos, André Luís Silva
dc.date.accessioned	2020-10-05T18:48:12Z
dc.date.available	2020-10-05T18:48:12Z
dc.date.issued	2014-06-19
dc.description.resumo	This 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 infrastructure	pt_BR
dc.identifier.citation	AMARO, 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.doi	10.1080/01490419.2014.904257
dc.identifier.issn	0149-0419
dc.identifier.issn	1521-060X
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30261
dc.language	en	pt_BR
dc.publisher	Taylor and Francis	pt_BR
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/br/	*
dc.subject	Digital elevation model	pt_BR
dc.subject	PPK GPS	pt_BR
dc.subject	Remote sensing	pt_BR
dc.subject	Shoreline detection	pt_BR
dc.title	Multitemporal analysis of coastal erosion based on multisource satellite images, Ponta Negra beach, Natal City, Northeastern Brazil	pt_BR
dc.type	article	pt_BR