Filters: Tags: tracklines (X) > Types: Map Service (X)

Filters Contacts (Less) Bradford Butman William W Danforth Richard P Signell Brian D Andrews U.S. Geological Survey - ScienceBase U.S. Geological Survey - ScienceBase William C Schwab John E. Hughes Clarke U.S. Geological Survey Woods Hole Coastal and Marine Science Center PCMSC Science Data Coordinator Natural Hazards Daniel Brothers U.S. Geological Survey Pacific Coastal and Marine Science Center Peter Dartnell Walter Barnhardt John E. Hughes Clark Peter J Haeussler Natural Hazards Alexander R Nichols Uri Ten Brink Robert M Wyland Eric Moore Jackson E Currie Laura Brothers David S Foster Seth D Ackerman Barry J Irwin Coastal and Marine Hazards and Resources Program Jared W Kluesner Patrick Berube Bradford Butman Coastal and Marine Hazards and Resources Program View Results as: JSON ATOM CSV

Tracklines of a multibeam survey of the Hudson Shelf Valley carried out in 2000 (polyline shapefile, geographic, WGS 84) The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water depth landward of the head of the Hudson Canyon. Portions of the 150-kilometer-long valley were surveyed in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to map the bathymetry and backscatter... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship Frederick G. Creed, Canadian Hydrographic Service (CHS), Coastal and Marine Geology Program (CMGP), Hudson Canyon, Hudson Shelf Valley, All tags... Middle Atlantic Bight, New Jersey, New York, New York Bight, North Atlantic Ocean, Simrad EM1000, U.S. Geological Survey (USGS), USGS Open-File Report 03-372, University of New Brunswick (UNB), WHCMSC field activity 2000-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, multibeam, oceans, polyline shapefile, tracklines, Fewer tags Ship navigation tracklines from a 2018 multibeam survey near Noyes Submarine Canyon, southeast Alaska These metadata describe ship navigation tracklines from a 2018 multibeam echosounder survey near Noyo Submarine Canyon and vicinity, southeast Alaska. Data were collected by the National Oceanic and Atmospheric Administration (NOAA) aboard the NOAA survey vessel Fairweather and the data were post-processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) for PCMSC research projects. The tracklines are provided as a GIS shapefile. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Dixon Entrance, Noyes Canyon, All tags... PCMSC, Pacific Coastal and Marine Science Center, State of Alaska, U.S. Geological Survey, USGS, field observation, geoscientificInformation, geospatial datasets, marine geophysics, navigation, navigational data, polyline shapefile, tracklines, Fewer tags Tracklines of a multibeam survey of the sea floor southwest of Montauk Point, New York, in 1998 (polyline shapefile, geographic, WGS 84) Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coast of Long Island along the 20-meter isobath. Survey areas offshore of Fire Island Inlet, Moriches Inlet, Shinnecock Inlet, and southwest of Montauk Point were about 1 kilometer (km) wide and 10 km long. The area was mapped by the U.S. Geological Survey with support from the Canadian Hydrographic Service and the University... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), EM 1000, Long Island, All tags... Middle Atlantic Bight, Montauk Point, New Jersey, New York, New York Bight, North Atlantic Ocean, Simrad EM1000, U.S. Geological Survey (USGS), University of New Brunswick, WHCMSC field activity 1998-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, mid-Atlantic Bight, multibeam, navigation, oceans, polyline shapefile, sea floor, sea floor mapping, tracklines, Fewer tags Ship navigation tracklines from a 2017 multibeam survey near Noyes Submarine Canyon, southeast Alaska These metadata describe ship navigation tracklines from a 2017 multibeam echosounder survey near Noyo Submarine Canyon and Dixon Entrance, southeast Alaska. Data were collected by the National Oceanic and Atmospheric Administration (NOAA) aboard the NOAA survey vessel Fairweather and the data were post-processed by the U.S. Geological Survey (USGS), Pacific Coastal and Marine Science Center (PCMSC) for PCMSC research projects. The tracklines are provided as a GIS shapefile. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Dixon Entrance, Noyes Canyon, All tags... PCMSC, Pacific Coastal and Marine Science Center, State of Alaska, U.S. Geological Survey, USGS, field observation, geoscientificInformation, geospatial datasets, marine geophysics, navigation, navigational data, polyline shapefile, tracklines, Fewer tags Multibeam bathymetric trackline data collected in the vicinity of Buffalo Reef, Michigan, within Lake Superior during USGS Field Activity 2018-043-FA using a dual-head Reson T20-P multibeam echosounder (Esri polyline shapefile, Geographic, WGS 84) In September 2018, the U.S. Geological Survey, in collaboration with the U.S. Army Corps of Engineers, conducted high-resolution geophysical mapping and sediment sampling to determine the distribution of historical mine tailings on the floor of Lake Superior. Large amounts of waste material from copper mining, locally known as “stamp sands,” were dumped into the lake in the early 20th century, with wide-reaching consequences that have continued into the present. Mapping was focused offshore of the town of Gay on the Keweenaw Peninsula of Michigan, where ongoing erosion and re-deposition of the stamp sands has buried miles of native, white-sand beaches. Stamp sands are also encroaching onto Buffalo Reef, a large... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Buffalo Reef, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, Department of the Interior, All tags... Houghton County, Keweenaw County, Keweenaw Peninsula, Lacustrine Geology, Lake Superior, Michigan, R/V Rafael, Reson, T20-P, Traverse Bay, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, bathymetry, bathymetry, elevation, field activity number 2018-043-FA, geology, geophysics, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, inlandWaters, lakebed characteristics, multibeam bathymetry, multibeam echosounder, multibeam sonar, shapefile, tracklines, Fewer tags Multibeam trackline data collected in the vicinity of Buffalo Reef, Michigan, within Lake Superior during USGS Field Activity 2021-005-FA using a dual-head Reson T20-P multibeam echosounder (Esri polyline shapefile, Geographic, WGS 84) In August 2021, the U.S. Geological Survey, in collaboration with the U.S. Army Corps of Engineers, collected high-resolution geophysical data, sediment samples, and bottom imagery to determine the distribution of historical mine tailings on the floor of Lake Superior. Large amounts of waste material from copper mining, locally known as “stamp sands,” were dumped into the lake in the early 20th century, with wide-reaching consequences that have continued into the present. Mapping was focused offshore of the town of Gay on the Keweenaw Peninsula of Michigan, where ongoing erosion and re-deposition of the stamp sands has buried miles of native, white-sand beaches. Stamp sands are also encroaching onto Buffalo Reef,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Buffalo Reef, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, Department of the Interior, All tags... GLSC, Grand Traverse Bay, Great Lakes Science Center, Houghton County, Keweenaw County, Keweenaw Peninsula, Lacustrine Geology, Lake Superior, Michigan, R/V Rafael, Reson, T20-P, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, bathymetry, bathymetry, elevation, field activity number 2021-005-FA, geology, geophysics, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, inlandWaters, lakebed characteristics, multibeam bathymetry, multibeam echosounder, multibeam sonar, shapefile, tracklines, Fewer tags Navigation tracklines from a 2015 multibeam survey near Cross Sound, southeast Alaska, during field activity 2015-629-FA In 2015 the U.S. Geological Survey, Pacific Coastal and Marine Science Center, in cooperation with the Alaska Department of Fish and Game (ADFG), collected bathymetry and acoustic-backscatter data near Cross Sound in southeast Alaska using a Reson 7111 multibeam echosounder mounded to the ADFG R/V Solstice. This section of the data release provides the survey tracklines as a GIS shapefile. All files have accompanying FGDC metadata. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Cross Sound, Distributions, PCMSC, All tags... Pacific Coastal and Marine Science Center, State of Alaska, U.S. Geological Survey, USGS, field observation, geoscientificInformation, geospatial datasets, marine geophysics, navigation, navigational data, polyline shapefile, tracklines, Fewer tags Offshore of Moriches Inlet, New York These data are from a 1998 multibeam survey of the sea floor offshore of Moriches Inlet, New York. There are five datasets: bathymetry grid, shaded-relief image, backscatter intensity image, shaded-relief colored by backscatter intensity image, and trackline navigation. The bathymetry shows the shape of the sea floor. Of particular interest are the size, shape, and orientation of bed forms that may indicate sediment movement. The shaded-relief image provides a visualization of the bathymetry that accentuates small features that cannot be effectively shown as contours alone. The image of backscatter intensity provides qualitative information on the sediment texture and roughness of the sea floor. The image of shaded-relief... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Long Island, Middle Atlantic Bight, Montauk Point, New York, New York Bight, All tags... North Atlantic Ocean, backscatter, backscatter intensity, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, tracklines, Fewer tags Bathymetry tracklines collected in the Belfast Bay, Maine pockmark field using a SWATHplus-M interferometric sonar in 2006 and 2008, by the U.S. Geological Survey (Esri polyline shapefile, WGS 84) The U.S. Geological Survey, Woods Hole Coastal and Marine Science Center in cooperation with the University of Maine mapped approximately 50 square kilometers of the seafloor within Belfast Bay, Maine. Three geophysical surveys conducted in 2006, 2008 and 2009 collected swath bathymetric (2006 and 2008) and chirp seismic reflection profile data (2006 and 2009). The project characterized the spatial, morphological and subsurface variability of the Belfast Bay, Maine pockmark field. Pockmarks are large seafloor depressions that are associated with seabed fluid escape. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, Belfast Bay, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, All tags... Department of the Interior, Field Activity 2006-024-FA, Field Activity 2008-024-FA, Gulf of Maine, Interferometric Sonar, Maine, Penobscot Bay, R/V Rafael, SWATHplus-M, U.S. Geological Survey, USGS, United States of America, University of Maine, WHCMSC, Woods Hole Coastal and Marine Science Center, bathymetry, bathymetry, geoscientificInformation, location, marine geology, navigational data, oceans, pockmarks, shapefile, tracklines, Fewer tags Offshore of Fire Island Inlet, New York These data are from a 1998 multibeam survey of the sea floor offshore of Fire Island Inlet, New York. There are five datasets: bathymetry grid, shaded-relief image, backscatter intensity image, shaded-relief colored by backscatter intensity image, and trackline navigation. The bathymetry shows the shape of the sea floor. Of particular interest are the size, shape, and orientation of bed forms that may indicate sediment movement. The shaded-relief image provides a visualization of the bathymetry that accentuates small features that cannot be effectively shown as contours alone. The image of backscatter intensity provides qualitative information on the sediment texture and roughness of the sea floor. The image of... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fire Island, Long Island, Middle Atlantic Bight, New York, New York Bight, All tags... North Atlantic Ocean, backscatter, backscatter intensity, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor mapping, shaded-relief bathymetry, tracklines, Fewer tags Tracklines of a multibeam survey of the Hudson Shelf Valley carried out in 1996 (polyline shapefile, geographic, WGS 84) The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water depth landward of the head of the Hudson Canyon. Portions of the 150-kilometer-long valley were surveyed in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to map the bathymetry and backscatter... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship Frederick G. Creed, Canadian Hydrographic Service (CHS), Coastal and Marine Geology Program (CMGP), Hudson Canyon, Hudson Shelf Valley, All tags... Middle Atlantic Bight, New Jersey, New York, New York Bight, North Atlantic Ocean, Simrad EM1000, U.S. Geological Survey (USGS), USGS Open-File Report 03-372, University of New Brunswick (UNB), WHCMSC field activity 1996-043-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, multibeam, oceans, polyline shapefile, tracklines, Fewer tags Bathymetry and Backscatter Intensity of the Sea Floor South of Long Island, New York Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coast of Long Island along the 20-meter isobath. Survey areas offshore of Fire Island Inlet, Moriches Inlet, Shinnecock Inlet, and southwest of Montauk Point were about 1 kilometer (km) wide and 10 km long. The area was mapped by the U.S. Geological Survey with support from the Canadian Hydrographic Service and the University... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fire Island, Long Island, Middle Atlantic Bight, Montauk Point, Moriches Inlet, All tags... New York, New York Bight, North Atlantic Ocean, Shinnecock Inlet, backscatter, backscatter intensity, bathymetry, elevation, geoscientificInformation, hillshade, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor mapping, shaded-relief bathymetry, tracklines, Fewer tags Tracklines of a multibeam survey of the sea floor offshore of Shinnecock Inlet, New York, in 1998 (polyline shapefile, geographic, WGS 84) Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coast of Long Island along the 20-meter isobath. Survey areas offshore of Fire Island Inlet, Moriches Inlet, Shinnecock Inlet, and southwest of Montauk Point were about 1 kilometer (km) wide and 10 km long. The area was mapped by the U.S. Geological Survey with support from the Canadian Hydrographic Service and the University... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), Long Island, Middle Atlantic Bight, All tags... New York, New York Bight, North Atlantic Ocean, Shinnecock Inlet, Simrad EM1000, U.S. Geological Survey (USGS), University of New Brunswick, WHCMSC field activity 1998-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, mid-Atlantic Bight, multibeam, navigation, oceans, polyline shapefile, sea floor, sea floor mapping, tracklines, Fewer tags Offshore of Shinnecock Inlet, New York These data are from a 1998 multibeam survey of the sea floor offshore of Shinnecock Inlet, New York. There are five datasets: bathymetry grid, shaded-relief image, backscatter intensity image, shaded-relief colored by backscatter intensity image, and trackline navigation. The bathymetry shows the shape of the sea floor. Of particular interest are the size, shape, and orientation of bed forms that may indicate sediment movement. The shaded-relief image provides a visualization of the bathymetry that accentuates small features that cannot be effectively shown as contours alone. The image of backscatter intensity provides qualitative information on the sediment texture and roughness of the sea floor. The image of shaded-relief... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Long Island, Middle Atlantic Bight, New York, New York Bight, North Atlantic Ocean, All tags... Shinnecock Inlet, backscatter, backscatter intensity, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, tracklines, Fewer tags Tracklines of a multibeam survey of the Hudson Shelf Valley carried out in 1998 (polyline shapefile, geographic, WGS 84) The Hudson Shelf Valley is the submerged seaward extension of the ancestral Hudson River drainage system and is the largest physiographic feature on the Middle Atlantic continental shelf. The valley begins offshore of New York and New Jersey at about 30-meter (m) water depth, runs southerly and then southeasterly across the Continental Shelf, and terminates on the outer shelf at about 85-m water depth landward of the head of the Hudson Canyon. Portions of the 150-kilometer-long valley were surveyed in 1996, 1998, and 2000 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to map the bathymetry and backscatter... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship Frederick G. Creed, Canadian Hydrographic Service (CHS), Coastal and Marine Geology Program (CMGP), Hudson Canyon, Hudson Shelf Valley, All tags... Middle Atlantic Bight, New Jersey, New York, New York Bight, North Atlantic Ocean, Simrad EM1000, U.S. Geological Survey (USGS), USGS Open-File Report 03-372, University of New Brunswick (UNB), WHCMSC field activity 1998-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, multibeam, oceans, polyline shapefile, tracklines, Fewer tags Trackline navigation collected with a Reson 7160 Multibeam echosounder in the eastern Gulf of Alaska during USGS Field Activity 2016-625-FA (Esri polyline shapefile, UTM 8 WGS 84) Marine geophysical mapping of the Queen Charlotte Fault in the eastern Gulf of Alaska was conducted in 2016 as part of a collaborative effort between the U.S. Geological Survey and the Alaska Department of Fish and Game to understand the morphology and subsurface geology of the entire Queen Charlotte system. The Queen Charlotte fault is the offshore portion of the Queen Charlotte-Fairweather Fault: a major structural feature that extends more than 1,200 kilometers from the Fairweather Range of southern Alaska to northern Vancouver Island, Canada. The data published in this data release were collected along the Queen Charlotte Fault between Cross Sound and Noyes Canyon, offshore southeastern Alaska from May 18 to... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: ADFG, Alaska Department of Fish and Game, Baranof Fan, Baranof Island, CMHRP, All tags... Chatham Strait, Chichagof Island, Coastal and Marine Hazards and Resources Program, Cross Sound, GeoscientificInformation, Gulf of Alaska, Heceta Knoll, Icy Point, Location, North Pacific Ocean, Noyes Canyon, Pacific Coastal and Marine Science Center, Pacific Ocean, Queen Charlotte Fault, R/V Medeia, Reson 7160, TerraSond, U.S. Geological Survey, USGS, United States of America, Woods Hole Coastal and Marine Science Center, Yakobi Sea Valley, multibeam, seafloor, tracklines, Fewer tags Tracklines of a multibeam survey of the sea floor offshore of Moriches Inlet, New York, in 1998 (polyline shapefile, geographic, WGS 84) Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coast of Long Island along the 20-meter isobath. Survey areas offshore of Fire Island Inlet, Moriches Inlet, Shinnecock Inlet, and southwest of Montauk Point were about 1 kilometer (km) wide and 10 km long. The area was mapped by the U.S. Geological Survey with support from the Canadian Hydrographic Service and the University... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), Long Island, Middle Atlantic Bight, All tags... Moriches Inlet, New York, New York Bight, North Atlantic Ocean, Simrad EM1000, U.S. Geological Survey (USGS), University of New Brunswick, WHCMSC field activity 1998-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), location, mid-Atlantic Bight, multibeam, navigation, oceans, polyline shapefile, sea floor, sea floor mapping, tracklines, Fewer tags Southwest of Montauk Point, New York These data are from a 1998 multibeam survey of the sea floor southwest of Montauk Point, New York. There are five datasets: bathymetry grid, shaded-relief image, backscatter intensity image, shaded-relief colored by backscatter intensity image, and trackline navigation. The bathymetry shows the shape of the sea floor. Of particular interest are the size, shape, and orientation of bed forms that may indicate sediment movement. The shaded-relief image provides a visualization of the bathymetry that accentuates small features that cannot be effectively shown as contours alone. The image of backscatter intensity provides qualitative information on the sediment texture and roughness of the sea floor. The image of shaded-relief... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Long Island, Middle Atlantic Bight, Montauk Point, New York, New York Bight, All tags... North Atlantic Ocean, backscatter, backscatter intensity, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, tracklines, Fewer tags Tracklines of a multibeam survey of the sea floor offshore of Fire Island Inlet, New York, in 1998 (polyline shapefile, geographic, WGS 84) Surveys of the bathymetry and backscatter intensity of the sea floor south of Long Island, New York, were carried out in November 1998 using a Simrad EM1000 multibeam echosounder mounted on the Canadian Coast Guard ship Frederick G. Creed. The purpose of the multibeam echosounder surveys was to explore the bathymetry and backscatter intensity of the sea floor in several areas off the southern coast of Long Island along the 20-meter isobath. Survey areas offshore of Fire Island Inlet, Moriches Inlet, Shinnecock Inlet, and southwest of Montauk Point were about 1 kilometer (km) wide and 10 km long. The area was mapped by the U.S. Geological Survey with support from the Canadian Hydrographic Service and the University... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Fire Island, Long Island, Middle Atlantic Bight, New York, New York Bight, All tags... North Atlantic Ocean, Simrad EM1000, WHCMSC field activity 1998-015-FA, location, mid-Atlantic Bight, multibeam, navigation, oceans, polyline shapefile, sea floor, sea floor mapping, tracklines, Fewer tags