Characterization of autumn tide of Jingu River Estuary,Qinzhou
With the method of quasi-harmonic analysis of short-term tidal current,we characterized the autumn tide of Jingu River estuary,Qinzhou,using the 25-hour synchronized tidal current data collect-ed at six offshore stations in Sept.2020.During the observation period,the maximum surge tidal cur-rent velocity was 0.55 m/s,and the maximum ebb tidal current velocity was 0.52 m/s.The flow direc-tion was from NNE to SSW.The observed tidal current in the sea area was diurnal,the ellipticity K'value of O1 and P1 tidal current was small,and the characteristics of the reciprocating current was obvi-ous.The residual current velocity each observation station varied between 2.7 and 6.5 cm/s.The cur-rent flowed mainly from SE to SW,indicating that the material transport in this area was from the Jin-gu River to the open sea.The Jingu River tide accounted for only 5％of the Qinzhou Bay.
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万方数据
