Sediment Texture Samples from HARS Offshore New York, 1996-1998

Historic Area Remediation Site (HARS) offshore New York and New Jersey contains sea floor sediment texture data from 1996 and 1998 surveys. The dataset includes maps of sea floor topography, shaded relief, and backscatter intensity at a 3-meter per pixel resolution, showing changes from dredged material placement. This study was conducted cooperatively by the U.S. Geological Survey and the U.S. Army Corps of Engineers.

Use Cases

• Map surficial geology changes over time based on multibeam survey data from 1996, 1998, and 2000.
• Analyze sea floor texture and roughness based on backscatter intensity data at 3-meter resolution.
• Monitor remediation effectiveness based on topography changes from dredged material placement.
• Visualize sea floor characteristics for public and scientific display using provided GIS format maps.

Strengths

• Provides multibeam survey data from three specific time periods: November-December 1996, October-November 1998, and April 2000.
• Maps sea floor characteristics at a high spatial resolution of 3 meters per pixel.
• Covers a defined study area of approximately 9 square nautical miles in the HARS region.

Limitations

• Last updated 1998-12-21 23:59:59.999000; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

U.S. Geological Survey (USGS) and U.S. Army Corps of Engineers.

Collection Method

Data collected with a multibeam sea floor mapping system on ship surveys.

Time Range

Surveys conducted in 1996, 1998, and 2000.

Freshness

Last updated 1998-12-21 23:59:59.999000

Geography

Historic Area Remediation Site (HARS), offshore New York and New Jersey.