Hydrography of the Duplin River, Sapelo Island, Georgia
Abstract:The circulation pattern of a tidal river which drains an extensive salt marsh area and which receives practically no fresh water is described in detail. This circulation is primarily tide-driven. Synoptic current velocity profiles and volume transport values are presented for various stages of the tide and for both neap and spring tides. It is shown that the flooding of the salt marsh may increase the volume of water involved in the tidal circulation of the river by fourfold with a corresponding increase in tide level of 50 percent. A method for determining the tidal excursion in a river of this type is developed and applied to the observed transport data. Biological implications of the observed circulation are discussed.
Document Type: Research Article
Publication date: 1955-01-01
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