EFFECT OF TOPOGRAPHY ON SALINITY DISTRIBUTION: A CASE STUDY IN A HIGH-TIDAL RANGE ESTUARY
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概要
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We investigate changes in the longitudinal salinity distribution in the Red River estuary (RRE), where the channel shape and size greatly vary as a function of tidal amplitudes. A theoretical salt intrusion model was applied to analyze the salinity along the channel, considering the topographic characteristics. The model was originally developed based on the tidally averaged cross-section. In this study, assuming topographic parameters that exponentially vary under different tidal conditions, we could estimate the spatial and temporal distribution of the salinity using a modified model. The extension of the salt intrusion model agrees satisfactorily with field data that measured in the RRE during the dry seasons in 2006 and 2008. This finding indicates the applicability of the modified model for the further investigation in estuaries having more complex topography.
- Japan Society of Civil Engineersの論文
Japan Society of Civil Engineers | 論文
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