Temporal changes in a Cassino Beach, RS, dunes profile with Argus system video-monitoring assistance

Authors

  • Pedro V. GUIMARÃES Instituto de Oceanografia, Universidade Federal do Rio Grande.
  • Pedro S. PEREIRA Laboratório de Oceanografia Geológica, Universidade Federal de Pernambuco.
  • Lauro J. CALLIARI Laboratório de Oceanografia Geológica, Universidade Federal de Pernambuco.
  • Nisia KRUSCHE Centro de Ciências Computacionais, Universidade Federal do Rio Grande.

DOI:

https://doi.org/10.22456/1807-9806.78097

Keywords:

dunes morphodynamic, video-monitoring, depositional system, Oceanic Niño Index (ONI), dissipative profile.

Abstract

The dynamics of coastal sand dunes is a complex process that requires examining several processes at different scales. The analysis of three years morphological database of beach profiles at Cassino Beach, located in the south of Rio Grande do Sul state (RS), Brazil, identified an accretional behavior with an average of 14.86 m3 /m per year. Wind data and Oceanic Niño Index (ONI) showed that these components were the main modeling agents during this period. Digital imaging processing techniques related to the Argus system allowed to verify the increase of vegetation density and how some other factors contributed to increase coastal dune sand volume.

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Published

2018-02-27

How to Cite

GUIMARÃES, P. V., PEREIRA, P. S., CALLIARI, L. J., & KRUSCHE, N. (2018). Temporal changes in a Cassino Beach, RS, dunes profile with Argus system video-monitoring assistance. Pesquisas Em Geociências, 41(3), 217–229. https://doi.org/10.22456/1807-9806.78097

Issue

Vol. 41 No. 3 (2014): Pesquisas em Geociências

Section

Articles