Potential of Remote Sensing in the Corps of Engineers Dredging Program

The potential of remote sensing in the Corps of Engineers Dredging Program for providing data on channel surveys, sediment drift and dispersion during dredging, water quality and suspended sediment concentrations, and selection of disposal sites and monitoring environmental effects at disposal sites...

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Bibliographic Details
Main Authors: McKim,Harlan L, Klemas,Vytautas, Gatto,Lawrence W, Merry,Carolyn J
Format: Report
Language:English
Subjects:
AERIAL PHOTOGRAPHY
AIRBORNE
ARMY CORPS OF ENGINEERS
BATHYMETRY
Civil Engineering
COASTAL REGIONS
CURRENTS
DEPTH FINDERS
DISPOSAL
DREDGED MATERIALS
DREDGING
DRIFT
ENVIRONMENTAL IMPACT
FILTERS
HYDROGRAPHIC SURVEYING
LAND USE
MAPPING
MONITORING
MULTISPECTRAL
PLUMES
PULSES
RADAR
RECORDING SYSTEMS
REMOTE DETECTORS
Remote sensing
SCANNERS
SEDIMENT TRANSPORT
SITES
SOILS
SONAR
SURFACE TRUTH
VEGETATION
WATER QUALITY
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Summary:The potential of remote sensing in the Corps of Engineers Dredging Program for providing data on channel surveys, sediment drift and dispersion during dredging, water quality and suspended sediment concentrations, and selection of disposal sites and monitoring environmental effects at disposal sites was reviewed. The recommended remote sensor combination for recording dredging and environmental changes was a small, single-engine aircraft equipped with at least two 70-mm or 35-mm cameras. The first camera should be loaded with color film and the second camera with color infrared film for vegetation or land use mapping, or panchromatic film with special filters for water studies. For bathymetric mapping, the cameras will have to be supplemented by airborne impulse radar or laser profilers, and possibly sonar depth finders. A combination of small aircraft and boats is optimum for mapping currents and observing plume dynamics. Additional research is required to study the use of multispectral scanners for bathymetric mapping of large coastal areas, for mapping sediment transport in shallow waters, for mapping concentrations of suspended matter or organic or inorganic origin, and for detecting vegetative stress and soil properties. Along with the acquisition of the multispectral data, ground truth needs to be taken to verify the interpretation of the data. Long-range plans, on the order of 30 to 50 years, are necessary for managing the disposal of dredged material. Keywords: Aerial photography; Army Corps of engineers; Dredged materials; Dredging; Remote sensing.