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    Longshore currents and sediment trnsport along Kannirajapuram Coast, Tamilnadu, India

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    J_Coast_Res_16_247.pdf (661.0Kb)
    Date
    2000
    Author
    SanilKumar, V.
    Chandramohan, P.
    AshokKumar, K.
    Gowthaman, R.
    Pednekar, P.S.
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    Abstract
    The objective of the study was to estimate longshore current and sediment transport from measured wave data and from the observations on the littoral environment. A directional wave rider buoy was deployed at 12m water depth, 11 km off Kannirajapuram. Wave data at 3 hourly intervals from March 1997 to Februayr 1998 were recorded. The first wave direction corresponding to the peak of the spectrum and second wave direction corresponding to the secondary peak were estimated since wave spectrum at this location was mainly double peak spectrum. Daily observations on surf zone width and longshore currents were carried out at Kannirajapuram beach during March 1997 to February 1998. The longshore currents and sediment transport were estimated considering first and second breaker angles and resultant was estimated considering the ratio of the first and second spectral energy peaks. Comparison of measured and computed longshore current shows that currents can be reasonably well estimated based on Galvin's equation and sediment transport based on Walton's equation
    URI
    http://drs.nio.org/drs/handle/2264/1721
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