Voltar
Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

TEMPORAL SHORELINE SERIES ANALYSIS USING GNSS

2014; UNIVERSIDADE FEDERAL DO PARANÁ; Volume: 20; Issue: 3 Linguagem: Inglês

10.1590/s1982-21702014000300040

ISSN

1982-2170

Autores

Francisco Jaime Bezerra Mendonça, Rodrigo Mikosz Gonçalves, Joseph L. Awange, Luciana Maria Da Silva, Maria das Neves Gregório,

Tópico(s)

Coastal and Marine Management

Resumo

In recent decades, Boa Viagem beach located in the city of Recife-PE and Piedade in Jaboatão dos Guararapes-PE (Brazil) has seen urbanization near the coastline causing changes in social, economic and morphological aspects, where coastal erosion problems are observed. This study uses GNSS (global navigation satellite system) shoreline monitoring approach, which is quicker, and provides continuously updatable data at cm-level accuracy to analyze and determine temporal positional shifts of the shoreline as well as annual average rates through EPR (end point rate). To achieve this, kinematic GNSS survey data for the years 2007, 2009, 2010 and 2012 were used. The results show sectorial trends over the years, with the highest annual retreat rate of 8.16 m /year occurring during the period 2007-2009. Variety of differents patterns over the shoreline was also observed. These findings could be essential for decision making in coastal environments.

Referência(s)