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Data Catalogue >  Spatial Data > Data Layers 
BATHY2MGEO: 2-m Bathymetric Grid of NOAA Survey H11255 in Long Island Sound (Geographic)
Source: USGS  USGS OFR 2006-1059
Description: This data is a 2-meter grid of the bathymetry generated from multibeam data collected during NOAA survey H11255 in Long Island Sound. The bathymetric survey covered roughly 95 square kilometers of seafloor in southeastern Long Island Sound.
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Bathymetric Contours for Long Island Sound - 5 m
Source: USGS  USGS OFR 02-002
Description: This bathymetric contour data set was derived from a gridded data set obtained from URI (B.Tyce, G. Hatcher). They used the "Gridder" program to obtain the grid. This gridded data set was generated from the original NOS soundings from 9 track tape that was cleaned up and edited at URI. This work was done with the intention of producing the color poster called "Long Island Sound Estuary" (Connecticut Dept. of Environmental Protection"), 1993. The accuracy is questionable.
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Bathymetric Contours from NOAA Charts as Organized for the LISSGIS Library -1 m
Source: USGS  USGS OFR 98-502: USGS OFR 02-002
Description: The Long Island Sound Study (LISS) compiled data from a number of different sources, integrated new data, and assembled a comprehensive spatial database for areas of the States of Connecticut, New York, and portions of Rhode Island which border Long Island Sound.
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Bathymetry of Norwalk Sidescan Sonar Mosaic
Source: USGS; CTDEP, LISRC  USGS Geologic Investigations Series Map I-2589; USGS OFR 98-502
Description: This data layer contains an interpretation of the 2-meter bathymetry in the Norwalk sidescan sonar study area. The study area is a 60 square km area of the sea floor in western Long Island Sound off Norwalk, Connecticut. This data has been automated from USGS Geologic Investigations Series Map I-2589: Sidescan sonar image, surficial geologic interpretation, and bathymetry of Long Island Sound sea floor off Norwalk, CT (Twichell and other, 1997).
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Bathymetry of the Fishers Island Sound Sidescan Sonar Mosaic Area
Source: USGS; CTDEP, LISRC  USGS Geologic Investigations Series Map I-2640; USGS OFR 98-502
Description: This data layer contains the 2 meter bathymetry of the Fishers Island Sound sidescan sonar mosiac area. This data has been automated from USGS Geologic Investigations Series Map I-2640: Sidescan sonar image, surficial geologic interpretation, and bathymetry of the Fishers Island Sound Sea Floor, Connecticut, New York, and Rhode Island (Poppe and others, 1998) and USGS Open-File Report 98-502: Long Island Sound Environmental Studies (Poppe and Polloni, 1998).
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