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An instrument system that measures bottom current, temperature, light transmission, and pressure, and that photographs the bottom at 2- to 6-hour intervals has been developed to study sediment transport on the Atlantic Continental Shelf. Instruments have been deployed extensively along the United States East Coast Continental Shelf for periods of from 2 to 6 months to study the frequency, direction, and rate of bottom sediment movement, and the processes causing movement. The time-lapse photographs are used to (1) characterize the bottom benthic community and surface microtopography; (2) monitor changes in the bottom topography and near-bottom water column caused by currents and storms (for example, ripple generation and migration, sediment resuspension); and (3) monitor seasonal changes in the bottom benthic community and qualitative effects of this community on the bottom sediments.
Additional Publication Details
LONG-TERM OBSERVATIONS OF BOTTOM CONDITIONS AND SEDIMENT MOVEMENT ON THE ATLANTIC CONTINENTAL SHELF: TIME-LAPSE PHOTOGRAPHY FROM INSTRUMENTED TRIPODS.
Van Nostrand Reinhold Co
New York, NY, USA
Number of Pages:
Underwater Photography: Scientific and Engineering Applications.