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dynamics of turbidity plumes in lake ontarioThe author has identified the following significant results. Large turbidity features along the 275 km south shore of Lake Ontario were analyzed using LANDSAT-1 images. The Niagara River plume, ranging from 30 to 500 sq km in area is, by far, the largest turbidity feature in the lake. Based on image tonal comparisons, turbidity in the Welland Canal is usually higher than that in any other water course discharging into the lake during the shipping season. Less turbid water enters the lake from the Port Dalhousie diversion channel and the Genesee River. Relatively clear water resulting from the deposition of suspended matter in numerous upstream lakes is discharged by the Niagara and Oswego Rivers. Plume analysis corroborates the presence of a prevailing eastward flowing longshore current along the entire south shore. Plumes resulting from beach erosion were detected in the images. Extensive areas of the south shore are subject to erosion but the most severely affected beaches are situated between Fifty Mile Point, Ontario and Thirty Mile Point, New York along the Rochester embayment, and between Sodus Bay and Nine Mile Point.
Document ID
19760018528
Document Type
Contractor Report (CR)
Authors
Pluhowski, E. J.
(Geological Survey Reston, VA, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1975
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Report/Patent Number
E76-10370
NASA-CR-147963
REPT-75-249
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-70243-AG
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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