Data Layer Containing the Features Interpreted to be on the Sea Floor within the National Oceanic and Atmospheric Administration (NOAA) H11255 Survey Area in Southeastern Long Island Sound (H11255INTERP.SHP, Geographic)

The digital terrain model was interpreted and polygons for each type of feature were produced in ArcView as a shapefiles. The shapefiles were then combined using GeoProcessing Wizard.

Edits to the metadata were made to fix any errors that MP v 2.9.32 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The source information was incomplete and had to be modified to meet the standard. Minor fixes to the attribute format for some attributes was needed. The original metadata specified the North American Datum of 1983 as the datum name, the ellipsoid as WGS_1984, and the remaining geodetic parameters that match a NAD27 geodetic model. Since the interpretation was based on a digital terrain model, the assumption is that the NAD27 parameters are incorrect and assuming the horizontal datum name is correct. The geodetic parameters were edited to be in agreement with the datum name North American Datum of 1983. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent.

Added keywords section with USGS persistent identifier as theme keyword.