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#1 Federal

Benthic Mapping in Long Island Sound

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 30, 2026 at 12:00 AM

QTCView is used with an incorporated depthfinder to create a sonar map of the bottom to the west of the Charles Island, in Long Island Sound in Connecticut waters. Two maps are created, one at 50...

Search relevance: 167.26 | Views last month: 1 | Catalog Last Checked: August 03, 2026 at 02:34 AM

#2 Federal

Bathymetry and acoustic backscatter data collected in Long Island Sound for the Phase III Long Island Sound Seafloor Mapping Project 2015 (NCEI Accession 0167532)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: November 15, 2017 at 12:00 AM

This dataset contains multibeam bathymetry, uncertainty, and backscatter GeoTIFFs with 1x1 meter cell size represent water depth and acoustic intensity of the seafloor from the Phase III Long...

Search relevance: 136.58 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 04:30 PM

#3 Federal

Bathymetry, acoustic backscatter, and LiDAR data collected in Long Island Sound for the Phase II Long Island Sound Seafloor Mapping Project (NCEI Accession 0167531)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: March 23, 2020 at 12:00 AM

This dataset contains multibeam bathymetry, backscatter, and LiDAR bathymetry and reflectance. These GeoTIFFs represent water depth and acoustic intensity of the seafloor from Phase II of the Long...

Search relevance: 104.01 | Views last month: 13 | Catalog Last Checked: November 03, 2026 at 04:30 PM

#4 Federal

Interpretive Data Layer Showing Distribution of Modern Features Within National Oceanic and Atmospheric Adminitration (NOAA) Survey H11250 (H11250G_MOD, Geographic)

Organization: Department of the Interior
Dataset Last Updated: November 16, 2021 at 12:00 AM

The U.S. Geological Survey, in cooperation with the National Oceanic and Atmospheric Administration and the Connecticut Department of Environmental Protection, has produced detailed geologic maps...

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Search relevance: 79.03 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:17 PM

#5 Federal

NOAA TIFF Image - LIS_2014_Biogeo_Backscatter_1m.tif - Benthic Habitat Characterization - Biogeographic Branch - (2014), UTM 18N NAD83

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: January 01, 2014 at 12:00 AM

This dataset contains a unified backscatter GeoTiff with 1x1 meter cell size representing the 2014 Long Island Sound Benthic Habitat Priority Area of Interest off of Port Jefferson, NY. This...

Search relevance: 74.75 | Views last month: 1 | Catalog Last Checked: August 02, 2026 at 04:58 PM

#6 Federal

2-m Bathymetry from the NOAA Survey H11255 of the Sea Floor in Southeastern Long Island Sound (H11255_2MUTM18_XYZ.TXT, UTM Zone 18)

Organization: Department of the Interior
Dataset Last Updated: November 16, 2021 at 12:00 AM

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the...

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Search relevance: 71.49 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:30 PM

#7 Federal

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)

Organization: Department of the Interior
Dataset Last Updated: November 16, 2021 at 12:00 AM

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the...

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Search relevance: 71.47 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:11 PM

#8 Federal

2-m Bathymetric Grid of NOAA Survey H11255 in Long Island Sound (BATHY2M_UTM18, UTM Zone 18)

Organization: Department of the Interior
Dataset Last Updated: November 16, 2021 at 12:00 AM

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the...

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Search relevance: 71.22 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 09:20 PM

#9 Federal

Color Shaded-Relief Image Showing the 2-m Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Survey H11255 in Long Island Sound (H11255_GEO_2MBATHY.TIF, Geographic)

Organization: Department of the Interior
Dataset Last Updated: November 16, 2021 at 12:00 AM

Digital terrain models (DTMs) produced from multibeam bathymetric data provide valuable base maps for marine geological interpretations. These maps help define the geological variability of the...

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Search relevance: 70.97 | Views last month: 2 | Catalog Last Checked: September 10, 2026 at 08:05 PM

#10 Federal

Bathymetry and acoustic backscatter collected in Long Island Sound for the Phase I Long Island Sound Seafloor Mapping Project 2014 (NCEI Accession 0167946)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: November 14, 2017 at 12:00 AM

This dataset contains an integrated GeoTIFF with 1x1 meter cell size representing the 2014 Long Island Sound Benthic Habitat Priority Area of Interest between Bridgeport, CT, and Port Jefferson,...

Search relevance: 44.40 | Views last month: 1 | Catalog Last Checked: October 26, 2026 at 09:04 PM

#11 Federal

NOAA Office for Coastal Management Benthic Habitat Data, Long Island Sound, Jamaica Bay, and Lower Bay of NY/NJ Harbor, NY, 1994-2002 (NCEI Accession 0089467)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: July 13, 2012 at 12:00 AM

These data are a collection of benthic habitat data from studies conducted in the coastal Long Island Sound, NY region in GIS shapefile (.shp, .dbf, .shx, and .prj files) with associated Federal...

Search relevance: 41.68 | Views last month: 1 | Catalog Last Checked: November 03, 2026 at 04:17 PM

#12 Federal

Benthic communities in the New London sidescan mosaic study area

Organization: Department of the Interior
Dataset Last Updated: June 26, 2023 at 12:00 AM

This data layer depicts benthic communities found in the New London sidescan sonar mosaic study area.

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Search relevance: 41.35 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 08:35 PM

#13 Federal

Interpretation of the sidescan sonar mosaic from the study area off new London, CT

Organization: Department of the Interior
Dataset Last Updated: June 26, 2023 at 12:00 AM

This data layer is an interpretation of the sidescan sonar mosaic from the study area off New London, CT.

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Search relevance: 38.01 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 07:51 PM

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Benthic Mapping in Long Island Sound

Bathymetry and acoustic backscatter data collected in Long Island Sound for the Phase III Long Island Sound Seafloor Mapping Project 2015 (NCEI Accession 0167532)

Bathymetry, acoustic backscatter, and LiDAR data collected in Long Island Sound for the Phase II Long Island Sound Seafloor Mapping Project (NCEI Accession 0167531)

Interpretive Data Layer Showing Distribution of Modern Features Within National Oceanic and Atmospheric Adminitration (NOAA) Survey H11250 (H11250G_MOD, Geographic)

NOAA TIFF Image - LIS_2014_Biogeo_Backscatter_1m.tif - Benthic Habitat Characterization - Biogeographic Branch - (2014), UTM 18N NAD83

2-m Bathymetry from the NOAA Survey H11255 of the Sea Floor in Southeastern Long Island Sound (H11255_2MUTM18_XYZ.TXT, UTM Zone 18)

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)

2-m Bathymetric Grid of NOAA Survey H11255 in Long Island Sound (BATHY2M_UTM18, UTM Zone 18)

Color Shaded-Relief Image Showing the 2-m Bathymetry Generated from National Oceanic and Atmospheric Administration (NOAA) Survey H11255 in Long Island Sound (H11255_GEO_2MBATHY.TIF, Geographic)

Bathymetry and acoustic backscatter collected in Long Island Sound for the Phase I Long Island Sound Seafloor Mapping Project 2014 (NCEI Accession 0167946)

NOAA Office for Coastal Management Benthic Habitat Data, Long Island Sound, Jamaica Bay, and Lower Bay of NY/NJ Harbor, NY, 1994-2002 (NCEI Accession 0089467)

Benthic communities in the New London sidescan mosaic study area

Interpretation of the sidescan sonar mosaic from the study area off new London, CT

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