Banca de DEFESA: JOSÉ EDSON DE ALMEIDA JÚNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JOSÉ EDSON DE ALMEIDA JÚNIOR
DATA : 18/08/2017
HORA: 09:00
LOCAL: AUDITÓRIO DO CTEC
TÍTULO:

EVALUATION OF SHORT-TERM RETREAT ON THE BARREIRA DO INFERNO COASTAL CLIFF USING TERRESTRIAL LASER SCANNING


PALAVRAS-CHAVES:

Coastal Erosion, Interpolation Methods, Digital Elevation Model.


PÁGINAS: 104
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Civil
SUBÁREA: Geotécnica
ESPECIALIDADE: Mecânicas dos Solos
RESUMO:

This research aims a short-term multi-temporal evaluation of the retreat in a sea-cliff of the Barreiras Formation, in the Barreira do Inferno Launch Center (CLBI, in Portuguese) located in the eastern coast of Rio Grande do Norte (RN), Brazil. The studies were conducted between August 2016 and February 2017 through a Terrestrial Laser Scanning (TLS), which is an equipment that utilizes a pulsed laser to map sea-cliffs. The first phase of the study used the point cloud generated on August 21, 2016, for the construction of 10 Digital Elevation Model (DEM) via four different software for selecting the interpolation method that best represents the studied surface. The second phase was the classification of the sea-cliff according to its main erosive cause through 30 transversal sea-cliff face profiles obtained through the DEM generated in the previous phase. It led to a subdivision of the sea-cliff in 5 segments according to its classification. The evaluation and quantification of the net erosion and the retreat rate were conducted through comparing the DEMs with the transversal profiles generated. The results expressed that the sea-cliff had a retreat of approximately 6 centimeters with a net erosion of 333 m³ during the study period. It was also observed the importance of evaluating the reliability of the point cloud because of the presence of blanks due to the shading during the data collection, which may cause significant errors. The evaluation of this sea-cliff was relevant not only because it was the first to be done through TLS in this type of formation, but also because it represents a new way for understanding the coast dynamic.


MEMBROS DA BANCA:
Presidente - 350698 - VENERANDO EUSTAQUIO AMARO
Interno - 1222082 - ADA CRISTINA SCUDELARI
Interno - 1149451 - OLAVO FRANCISCO DOS SANTOS JUNIOR
Externo à Instituição - ANDRE LUIS SILVA DOS SANTOS - IFMA
Notícia cadastrada em: 09/08/2017 09:59
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