Salinity Intrusion in Louisiana Coastal Canals

by Jerome Peng-Yea Maa, Virginia Inst of Marine Science, Gloucester Point, VA, USA,
Flora Chu Wang, Virginia Inst of Marine Science, Gloucester Point, VA, USA,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Field data of the salinity intrusion in three Louisiana coastal canals were presented. In these canals, the mixing state can be categorized as, in general, well mixing at the Gulf side and changes to partially mixing at 15 to 20 km upstream. The well mixed state of salinity is the result of low fresh water discharge and relative strong tidal activities. Inland lakes, which connected to coastal canals, have significant influence in the salinity distribution if the depth of lakes (or connecting canals) is close to the main channel depth. These lakes provide storage space for salt water at the period of low river runoff and supply salt water to canals at the period of high river runoff.

Subject Headings: Rivers and streams | Lakes | Water storage | Salinity | Coastal environment | Canals | Water discharge | Salt water intrusion | Louisiana | United States

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