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GeoTIFF image the shaded-relief bathymetry, pseudocolored by backscatter intensity, of the sea floor of the Atlantic Beach artificial reef (2-m resolution, Mercator, WGS 84)

Dates

Publication Date
Acquisition
2000-04-20

Citation

Butman, Bradford, Danforth, W.W., Clarke, J.E.H., and Signell, R.P., 2017, Bathymetry and backscatter intensity of the sea floor of the Atlantic Beach artificial reef, offshore of New York: U.S. Geological Survey data release, https://doi.org/10.5066/F7J38RFK.

Summary

The Atlantic Beach artificial reef, located on the sea floor 3 nautical miles south of Atlantic Beach, New York in about 20 meters water depth, was built to create habitat for marine life. The reef was originally created by placing heavy materials such as tires, automobile bodies and other vehicles, barges, and rock from a dredging project on the sea floor. In 2000, the U.S. Geological Survey surveyed the area using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard (CCG) ship Frederick G. Creed. The purpose of this multibeam survey, done in cooperation with the U.S. Army Corps of Engineers when the Creed was in the New York region in April 2000, was to map the bathymetry and backscatter intensity of the sea [...]

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abreef_srback2m_browsegraphic.jpg
“Browse graphic of the data.”
thumbnail 263.56 KB
abreef_srback2m.zip
“Zip file containing the data and metadata.”
2.49 MB

Purpose

The GeoTIFF image of shaded-relief bathymetry, pseudocolored colored by backscatter intensity, provides a visualization of both bathymetry and backscatter intensity. The shaded-relief image was created by vertically exaggerating the bathymetry four times and then artificially illuminating the relief from the east by a light source positioned 45 degrees above the horizon. The illumination from the east, approximately parallel to the survey lines, minimizes artifacts caused by small depth changes that may occur between lines. The backscatter intensity is represented by a suite of eight colors ranging from blue (low intensity) to green to yellow to red (high intensity).

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