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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...
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The Sandy Hook artificial reef, located on the sea floor offshore of Sandy Hook, New Jersey was built to create habitat for marine life. The reef was created by the placement of heavy materials on the sea floor; ninety-five percent of the material in the Sandy Hook reef is rock. 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 floor in the area of the Sandy Hook artificial reef. The collected...
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The Sandy Hook artificial reef, located on the sea floor offshore of Sandy Hook, New Jersey was built to create habitat for marine life. The reef was created by the placement of heavy materials on the sea floor; ninety-five percent of the material in the Sandy Hook reef is rock. 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 floor in the area of the Sandy Hook artificial reef. The collected...
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The U. S. Geological Survey (USGS) makes long-term seismic hazard forecasts that are used in building codes. The hazard models usually consider only natural seismicity; non-tectonic (man-made) earthquakes are excluded because they are transitory or too small. In the past decade, however, thousands of earthquakes related to underground fluid injection have occurred in the central and eastern U.S. (CEUS), and some have caused damage. In response, the USGS is now also making short-term forecasts that account for the hazard from these induced earthquakes. A uniform earthquake catalog is assembled by combining and winnowing pre-existing source catalogs. Seismicity statistics are analyzed to develop recurrence models,...
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It has been shown that Environmental Protection Agency (EPA) Method 3060A does not adequately extract Cr(VI) from solids containing chromium ore processing residue (COPR). We systematically modified parameters of EPA 3060A towards improving extraction efficiency of Cr(VI) from the National Institute of Standards and Technology (NIST) standard reference material (SRM) 2701, a standard COPR-contaminated soil from New Jersey, USA. A material similar to NIST 2701 prepared in the laboratory from contaminated soil referred to as 2B was also analyzed. Extraction parameters tested were particle size, glass or polytetrafluoroethylene (PTFE) extraction vessels, volume of extraction solution to mass of sample, and extraction...


map background search result map search result map GeoTIFF image of shaded-relief bathymetry, colored by backscatter intensity, of the sea floor of the Hudson Shelf Valley (12-m resolution, Mercator, WGS 84) USGS Topo Map Vector Data (Vector) 9845 Coney Island NY (published 20231221) Shapefile USGS Topo Map Vector Data (Vector) 69158 Alloway NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 76280 Asbury Park OE E NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 69325 Bernardsville NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 13753 Egg Harbor City NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 13948 Elizabeth NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 15515 Flatbrookville NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 16239 Franklin NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 24793 Lambertville NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 26418 Long Beach NE NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 70765 Lumberville PA (published 20231221) Shapefile USGS Topo Map Vector Data (Vector) 30309 Morristown NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 32863 Ocean City NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 32871 Oceanville NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 47805 Wawayanda NJ (published 20231222) Shapefile GeoTIFF image of the backscatter intensity of the sea floor of the Sandy Hook artificial reef (2-m resolution, Mercator, WGS 84) Tracklines of a multibeam survey of the sea floor of the Sandy Hook artificial reef (polyline shapefile, geographic, WGS 84) Tracklines of a multibeam survey of the sea floor of the Sandy Hook artificial reef (polyline shapefile, geographic, WGS 84) GeoTIFF image of the backscatter intensity of the sea floor of the Sandy Hook artificial reef (2-m resolution, Mercator, WGS 84) USGS Topo Map Vector Data (Vector) 9845 Coney Island NY (published 20231221) Shapefile USGS Topo Map Vector Data (Vector) 69158 Alloway NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 76280 Asbury Park OE E NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 69325 Bernardsville NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 13753 Egg Harbor City NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 13948 Elizabeth NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 15515 Flatbrookville NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 16239 Franklin NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 24793 Lambertville NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 26418 Long Beach NE NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 70765 Lumberville PA (published 20231221) Shapefile USGS Topo Map Vector Data (Vector) 30309 Morristown NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 32863 Ocean City NJ (published 20231222) FileGDB USGS Topo Map Vector Data (Vector) 32871 Oceanville NJ (published 20231222) Shapefile USGS Topo Map Vector Data (Vector) 47805 Wawayanda NJ (published 20231222) Shapefile GeoTIFF image of shaded-relief bathymetry, colored by backscatter intensity, of the sea floor of the Hudson Shelf Valley (12-m resolution, Mercator, WGS 84)