Seasonal variability of beach characteristics between Candoliam and Colva coast, Goa, India.
DRS at CSIR-National Institute of Oceanography
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Title |
Seasonal variability of beach characteristics between Candoliam and Colva coast, Goa, India.
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Creator |
Wilson, J.S.J.
Sujitha, S.B. Shruti, V.C. Shaeema, Z.A. PrasannaKumar, S. Chandrasekar, N. |
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Subject |
heavy mineral
beach profile sediment monsoon |
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Description |
The aim of the present study was to investigate the seasonal impact on beach dynamics and the status of heavy mineral distribution along the study area. Beach profile measurements were made in 7 profiling sites between Candoliam and Colva on seasonal basis between pre-monsoon (May 2009) and monsoon (July 2009). Beach profile data was used to calculate the variation in beach width, slope and volumetric changes. The seasonal action of wind and wave currents create near-shore bar and erosion of berms during monsoon. Surface sediment samples were collected from High Tide Line, High Water Line, Water Line and Low Water line to quantify the sediment texture and heavy mineral weight percentage. The results reveal that the deposited sediment has been eroded during the monsoon season and the concentration of heavy mineral percentage increased from pre-monsoon to monsoon. The long-shore current measurement also shows that the current speed varies from pre-monsoon to monsoon. The results suggested that monsoonal action has influenced the seasonal changes in beach morphology and heavy mineral distribution. The beach profile helps to understand the change in the beach morphological characteristic.
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Date |
2014-08-06T12:39:08Z
2014-08-06T12:39:08Z 2014 |
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Type |
Journal Article
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Identifier |
Journal of Coastal Sciences, vol.1(1); 2014; 33-40.
http://drs.nio.org/drs/handle/2264/4571 |
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Language |
en
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Rights |
© 2013 Journal of Coastal Sciences. The Journal is an open-access journal.
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Publisher |
Centre for Geotechnology, MSU
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