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

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2020-03-23T00:00:00.000+00:00
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 Island Sound (LIS) Benthic Habitat Priority Areas of Interest (AOI) project. The original Phase II datasets were surveyed by NOAA Ship Nancy Foster (R-352), NOAA Ship Thomas Jefferson, and the Navigation Response Team (NRT-5) using 400 khz Reson 7125 multibeam sonars from 2003 to 2014. In 2018, the LIS Cable Fund contracted the State University of New York (SUNY) at Stony Brook School of Marine and Atmospheric Sciences (SoMAS) to fill gaps and resurvey areas where multibeam data was not acceptable with R/V Pritchard using 400 khz Kongsberg dual-swath EM2040c multibeam sonars in coordination with the NOAA National Centers for Coastal Ocean Science (NCCOS) Biogeography Branch and the NOAA Integrated Ocean and Coastal Mapping (IOCM) Program. The multibeam and LiDAR were corrected, calibrated, and integrated into a seamless 32-bit raster using CARIS and ArcGIS. Backscatter data was collected and mosaicked into a raster using Fledermaus Geocoder Toolbox, ArcGIS 10.4, and PCI Geomatica 2018 software.

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0167531 BATHYMETRY LIDAR multibeam sonar GIS product NOAA Ship Nancy Foster NOAA Ship Thomas Jefferson PRITCHARD NOAA National Centers for Coastal Ocean Science NOAA National Centers for Coastal Ocean Science Long Island Sound North Atlantic Ocean oceanography DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce NCCOS Project #140: Mapping the Long Island Sound Seafloor Long Island Sound Seafloor Mapping Project EARTH SCIENCE > Biosphere > Aquatic Habitat > Benthic Habitat EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Backscatter EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY Marine Spatial Ecology > Habitat Mapping Derived Data Product Field Observation Geospatial Acoustic Backscatter Benthic habitat LiDAR Intensity Multibeam Seafloor LIDAR > Light Detection and Ranging MBES > Multibeam Mapping System LiDAR Reson 7125 Riegl vq820g Ships NANCY FOSTER (call sign: WTER, ICES code: 33NF, 2004-) PRITCHARD (ICES code: 32O4) THOMAS JEFFERSON (call sign: WTEA, ICES code: 33TJ, 2003-) NRT-5 Navigational Response Team-5 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > LONG ISLAND SOUND Region > East Coast U.S. States and Territories > Connecticut U.S. States and Territories > New York Connecticut Continental Shelf Fishers Island Long Island Sound New London New York P9BBHL

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