A Simplified Method for Marsh Inundation Modeling in Hydrodynamic and Water Quality Models with Application to the Cooper River Estuary (SC)

Mendelsohn, Daniel; Yassuda, Eduardo; Peene, Steve

doi:10.1061/40628(268)42

Cited by 2 publications

(1 citation statement)

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“…One is the moving boundary method, in which the coastline and the number of grid cells change with time. For example, Mendelsohn et al (2001) used the moving boundary method to simulate the marsh inundation effects in the Cooper River Estuary. However, coastal areas with complex topography, like Casco Bay, may contain tens of segments of coastline associated with islands.…”

Section: Introductionmentioning

confidence: 99%

Implementation of a wetting-and-drying model in simulating the Kennebec–Androscoggin plume and the circulation in Casco Bay

Xue

2010

Ocean Dynamics

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A high-resolution coastal ocean model was developed to simulate the temporal/spatial variability of the Kennebec-Androscoggin (K-A) river plume and the circulation in Casco Bay. The model results agree favorably with the moored and shipboard observations of velocity, temperature, and salinity. The surface salinity gradient was used to distinguish the plume from the ambient coastal water. The calculated plume thickness suggests that the K-A plume is surface trapped. Its horizontal scales correlate well with Q 0.25 , where Q is the volume discharge of the rivers. Directional spreading is affected by the wind with the upwelling favorable wind transporting the plume water offshore. Both the wind and the tide also enhance mixing in the plume. The inclusion of a wetting-and-drying (WAD) scheme appears to enhance the mixing and entrainment processes near the estuary. The plume becomes thicker near the mouth of the estuary, the outflow velocity of the plume is weaker, and the radius of the river plume shrinks. The flow field in the model run with the WAD is noisier, not only in shallow areas of Casco Bay but also in the plume and even on the shelf. We speculate that the WAD processes can affect much larger areas than the intertidal zones, especially via a river plume that feeds into a coastal current.

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Section: Introductionmentioning

confidence: 99%