Daily beach changes during the summers of 2002/2003 in the tourist terminal sector, Cassino beach, RS, Brazil

Authors

  • P. S. Pereira Programa de Pós-graduação em Oceanografia Física Química e Geológica. Fundação Universida- de Federal do Rio Grande. Departamento de Geociências
  • L. J. Caliari Fundação Universida- de Federal do Rio Grande. Departamento de Geociências

DOI:

https://doi.org/10.14210/bjast.v9n1.p7-11

Abstract

High frequency morphodynamic surveys permit to analyze, in detail, beach morphology changes. With the purpose to investigate daily beach profiles variability, surveys were carried during the summers of 2002 and 2003 at Cassino beach. Bar migration rate of 4,8m per day was found and berm development in 3 days, as well as high erosion in the first days of a storm followed by accretion in the final days of the event. This accretion was verified in other points toward the south of the monitored point; nevertheless, the material deposited was in form of fluid mud, highlighting the importance of a specific wave power band in the reworking of the mud deposits. The results found here show the existence of small changes in the sediment stock, not detected in previous works, which only related erosion episodes to meteorological systems.

Author Biographies

P. S. Pereira, Programa de Pós-graduação em Oceanografia Física Química e Geológica. Fundação Universida- de Federal do Rio Grande. Departamento de Geociências

Programa de Pós-graduação em Oceanografia Física Química e Geológica. Fundação Universidade Federal do Rio Grande. Departamento de Geociências.

L. J. Caliari, Fundação Universida- de Federal do Rio Grande. Departamento de Geociências

Fundação Universidade Federal do Rio Grande. Departamento de Geociências.

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Published

2005-06-30

Issue

Vol. 9 No. 1 (2005)

Section

Research Articles

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