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    Tidal propagation in the Gulf of Khambhat, Bombay High, and surrounding areas

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    Proc_Indian_Acad_Sci_(EPS)_108_155.pdf (2.439Mb)
    Date
    1999
    Author
    Unnikrishnan, A.S.
    Shetye, S.R.
    Michael, G.S.
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    Abstract
    The continental shelf on the west coast of India is widest off Bombay and leads into a strongly converging channel, the Gulf of Khambhat. Tides in the Gulf are among the largest on the coast. Data on amplitude and phase of major semi-diurnal and diurnal constituents at forty-two ports in the Gulf and surrounding areas is sued to define characteristics of the tides. A barotropic numerical model based on shallow water wave equations to simulate the sea level and circulation in the region is used. The model is forced by prescribing the tide along the open boundaries of the model domain. Observed sea level at Bombay and currents from the Bombay High region at the centre of the model domain and from a shallow station off the port of Dahanu compare favourably with the fields simulated by the model. The simulated amplitudes and phases of the four most prominent tidal constituents also compare favourably with those observed along the coast, except at a few locations where the model spatial resolution (6.37 km x 6.37 km) appears to be inadequate to resolve the local geometry.
    URI
    http://drs.nio.org/drs/handle/2264/1812
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