USGS Western Region Coastal and Marine Geology

Torresan, M.E., and Gardner, J.V.,2000, Acoustic Mapping of the Regional Seafloor Geology in and Around Hawaiian Ocean Dredged-Material Disposal Sites, U.S. Geological Survey Open-file Report 00-124.

Figure 10 - Close-up view of Nawiliwili Disposal Site showing high-backscatter features that may be mounds formed by dredged material disposal.

These high-backscatter features have relief ranging from 0.5 m to 2.5 m. Three mounds are circled. Distance across the top of image is 6.4 km. Distance across the bottom of image is 2.9 km. Depth of field is 4.2 km. Water depth in the area is about 890 m.

[Fig 10 Nawiliwili Disposal Site Close Up backscatter image ]

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Maintainer: Susan A. Cochran
Last modified: 13 Dec 2000

U.S. Department of the Interior, U.S. Geological Survey, Western Region Coastal and Marine Geology