Skip to main content

GeoTIFF image of shaded-relief bathymetry of the sea floor of the Hudson Shelf Valley (12-m resolution, Mercator, WGS 84)

Dates

Publication Date
Start Date
1996-11-23
End Date
2000-05-04

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 Hudson Shelf Valley: U.S. Geological Survey data release, https://doi.org/doi:10.5066/F7C53J1Z.

Summary

The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water depth landward of the head of the Hudson Canyon. Portions of the 150-kilometer-long valley were surveyed in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to map the bathymetry and backscatter intensity of the [...]

Contacts

Attached Files

Click on title to download individual files attached to this item.

hsv_srelief12m_browsegraphic.jpg
“Browse graphic.”
thumbnail 55.79 KB
hsv_srelief12m.zip
“Data and metadata download.”
6.63 MB

Purpose

The GeoTIFF image of shaded-relief bathymetry provides a visualization of the bathymetry that accentuates small features that cannot be effectively shown as contours alone. The shaded-relief image was created by vertically exaggerating the bathymetry 4 times and then artificially illuminating the relief by a light source positioned 45 degrees above the horizon from the north. The image merges bathymetry data obtained in 1996, 1998, and 2000.

Item Actions

View Item as ...

Save Item as ...

View Item...