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Sidescan sonar
Acoustic technique for creating oblique backscatter imagery of the seafloor.
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Results 1 - 21 of 21 listed alphabetically [list by similarity]
Coastal and Marine Geology Program [More info]
Home page for Coastal and Marine Geology with links to topics of interest (sea level change, erosion, corals, pollution, sonar mapping, and others), Sound Waves monthly newsletter, field centers, regions of interest, and subject search system.
Continental shelf GIS for the Monterey Bay National Marine Sanctuary [More info]
Interactive maps of the continental shelf of the Monterey Bay National Marine Sanctuary with GIS layers for sediment data, bathymetry, geology, bathymetry, sonar imagery, and tectonics.
GLORIA Mapping Program [More info]
GLORIA is a digital sidescan sonar capable of producing digital image maps of the sea floor from reflected sound waves. Site includes description of digital processing, mosaicking, and links to samples of image maps.
Grand Canyon studies: using ocean-research techniques to study a river system [More info]
Brief review of studies with sidescan sonar on sediment in the Grand Canyon as part of research on the changes brought about by the Glen Canyon Dam and the results gathered from a 1996-controlled flood experiment with links to related information.
Gulf of Maine internet map [More info]
Gulf of Maine regional overview interactive map depicting research activities of the U.S. Geological Survey showing surficial sample sites, bathymetry, continental margin and coastal areas.
Gulf of the Farallones disposal issues: disposal and waste disposal [More info]
Study of the effects on the Gulf of the Farallones National Marine Sanctuary resulting from the disposal of San Francisco dredged material and barrels of low-level radioactive waste with links to publications and atlas with digital images.
PDF Holocene evolution of Apalachicola Bay, Florida [More info]
Geophysical surveying, combined with analysis of sediment cores and radiometric dating were used to describe the likely history of formation of this area.
Long Island Sound [More info]
Long Island Sound interactive map with GIS datasets and sonar imagery.
Long Island Sound sidescan sonar mosaics [More info]
Sidescan sonar image, surficial geologic interpretation, and bathymetry of the Long Island Sound sea floor.
Louisiana continental slope [More info]
Louisiana continental slope interactive map with GIS datasets and sonar imagery.
Mississippi Fan internet map [More info]
Mississippi River alluvial fan interactive map with GIS data and imagery depicting core sites, depositional and channel interpretation, Gloria and SeaMarc datasets.
Oculina Bank - geology of a deep-water coral reef habitat off Florida [More info]
Brief report on sidescan sonar data, sediment sampling, and submersible and video photography studies of destruction of deep-water coral pinnacles where fish spawn off east-central Florida in the Oculina Bank in order to restore and protect the habitat.
Sea-floor mapping technology [More info]
Integrated shipboard data collection, processing, and archival system for digital sidescan sonar and seismic data used in mapping the inner continental shelf.
Sea-floor morphology between Año Nuevo and Santa Cruz, California [More info]
Report with preliminary sea floor map displaying submarine rock exposures found along the northern part of Monterey Bay National Marine Sanctuary, extent based on side-scan sonar records, seismic-reflection records, and underwater video.
PDF Seafloor erosional processes offshore of the Chandeleur Islands, Louisiana [More info]
Study addresses questions and concerns related to limited sand resources along the Louisiana shelf and their implications to long-term relative sea-level rise and storm impacts, using newly acquired geophysical and vibracore data.
PDF South Carolina coastal erosion study [More info]
USGS project to understand coastal evolution and modern beach behavior; to identify and model the physical processes affecting coastal ocean circulation and sediment transport; and to identify sediment sources and construct a regional sediment budget.
U.S. Atlantic East Coast [More info]
Atlantic East Coast interactive map with GIS datasets and sonar imagery.
U.S. Gulf of Mexico Shoreline Change [More info]
Interactive map of the Gulf of Mexico coast reflecting shoreline changes.
U.S. Pacific West Coast internet map server [More info]
Interactive map of the U.S. Pacific West Coast with data layers of Gloria sidescan data, multibeam backscatter and shaded relief imagery.
West-central Florida erosion study [More info]
West central Florida erosion interactive map with GIS datasets to download including geologic interpretative layers, samples, bathymetry, and imagery.
Whales and walrus: tillers of the seafloor [More info]
Report on sea floor marks in the Northeast Bering Sea and Chukchi Sea that were identified as pits and furrows caused by whales and walruses in the process of feeding on bottom crustaceans.
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