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首页> 美国政府科技报告 >Forcing Functions Governing Salt Transports Processes in Coastal Navigation Canals and Connectivity to Surrounding Wetland Landscapes in South Louisiana Using Houma Navigation Canal as a Surrogate.
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Forcing Functions Governing Salt Transports Processes in Coastal Navigation Canals and Connectivity to Surrounding Wetland Landscapes in South Louisiana Using Houma Navigation Canal as a Surrogate.

机译：使用Houma导航运河作为代理，强制管理沿海导航运河的盐运输过程和连接南路易斯安那州周边湿地景观的功能。

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Understanding how circulation and mixing processes in coastal navigation canals influence the exchange of salt between marshes and coastal ocean, and how those processes are modulated by external physical processes, is critical to anticipating effects of future actions and circumstance. Examples of such circumstances include deepening the channel, placement of locks in the channel, changes in freshwater discharge down the channel, changes in outer continental shelf (OCS) vessel traffic volume, and sea level rise. The study builds on previous BOEM-funded studies by investigating salt flux variability through the Houma Navigation Canal (HNC). It examines how external physical factors, such as buoyancy forcing and mixing from tidal stirring and OCS vessel wakes, influence dispersive and advective fluxes through the HNC and the impact of this salt flux on salinity in nearby marshes. This study quantifies salt transport processes and salinity variability in the HNC and surrounding Terrebonne marshes. Data collected for this study include time-series data of salinity and velocity in the HNC, monthly salinity-depth profiles along the length of the channel, hourly vertical profiles of velocity and salinity over multiple tidal cycles, and salinity time series data at three locations in the surrounding marshes along a transect of increasing distance from the HNC.

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