Abstract
Variations in Offshore Suspended Sediment Characteristics and Effects of Ocean Dynamics: The Case of Terrebonne Bay, Northern Gulf of Mexico
Highlights
The northern part of the Gulf of Mexico has the largest river system in North America and is economically important because of its diverse ecosystem
Suspended particulate matter is mainly derived from particles carried by rivers, atmospheric dust, biological particles generated in the ocean, and weathered material in the crust
A large amount of land has been lost in Terrebonne Bay owing to coastal erosion caused by waves, wind, and rainfall
Summary
The northern part of the Gulf of Mexico has the largest river system in North America and is economically important because of its diverse ecosystem. Mississippi and Atchafalaya rivers feed fresh water plumes to the Gulf of Mexico through the Mobile Bay estuary.[1,2] The Gulf shore has a complex geometry, and morphological changes in this area are driven by spatial and temporal gradients of sediment transition. The sediment that eroded over the land was deposited at the continental margin or transported to coastal water. The sediment discharge into the sea is affected by rainfall, river runoff, and sediment concentration. Sediment particles are carried to the marine system by rivers and dispersed by the combined action of waves and current, which are governed by the local hydrodynamics, bottom morphology, and weather system. The particle distribution is subsequently affected by sediment transport, deposition, and resuspension cycles over the continental shelf and slope.[3]
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