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The Importance of Large Landsat Data Sets for Isolating Sediment Resuspension Processes

by Michael S. Fedosh, US Army Corps of Engineers, New, York, NY, USA,



Document Type: Proceeding Paper

Part of: Coastal Zone '87

Abstract:

An optical density analysis of Landsat film transparencies would show spatial variations of suspended sediment concentrations. The residual optical density profile inversely shows above and below average suspended sediment levels. The residual profiles of Landsat images with a similar wind direction and speed, tidal phase, or season can be averaged to produce a profile showing suspended sediment levels for that particular condition. Areas of above average turbidity suggest resuspension due to the condition which is isolated through the averaging process. The Virginian portion of Chesapeake Bay is used to test the averaging of residual optical density profiles study results are discussed.

Subject Headings: Suspended sediment | Data analysis | Coastal processes | Tides | Density currents | Sediment transport | Sediment

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