Sverdrup’s simple advective model of estuarine circulation is extended to include suspended sediment transport. Substitution of average flow and turbidity figures suggests a net landward suspended sediment transport into Delaware Bay near the bottom. The resulting projected sedimentation rate of 15 centimeters per century corresponds reasonably well with figures for the regional relative sea-level rise.
Sampling and calculation methods for more detailed sediment transport studies are discussed, and preliminary results are presented for three stations in the Delaware Bay mouth. Two stations located in fingerlike channels near both shores show net landward sediment transport over a tidal cycle at almost all depths, whereas a station near the center of the bay mouth displays net seaward transport at all levels.