500m Bathy Contours Derived from ETOPO2 Global 2' Elevations (bathy_500m)

Online link https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2005-1066/bathy_500m_metadata.faq.html
Description This bathymetry contour data is in ESRI shapefile format and was derived from a National Oceanic Atmospheric Administration (NOAA), National Geophysical Data Center (NGDC) ETOPO2 data set. An ESRI ArcView extension, Spatial Analyst, was used to create 500m intervals from a database of grid files (2-minute latitude - longitude resolution).
Originators U.S. Geological Survey; ten Brink, Uri S.; Smith, S. M.; Worley, Charles R.; Stepka, Thomas; and Williams, Glynn

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Thumbnail image showing location and extent of bottom photo locations in the vicinity of Plum Island, New York
Thumbnail image showing location and extent of bottom photo locations in the vicinity of Plum Island, New York