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