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MGL1111centerdepth.shp: Multibeam bathymetry data collected by the U.S. Geological Survey in the Bering Sea in 2011 during cruise MGL1111, along-track center-beam depths extracted from 100-meter gridded data in shapefile format, geographic coordinates This shapefile contains center-beam depths for approximately 5727 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Bering Sea during U.S. Geological Survey - Coastal and Marine Geology Program cruise MGL1111 aboard the R/V Marcus G. Langseth. The depth values were extracted from gridded data which were reduced for position, elevation, orientation, water-column sound-speed, and refraction effects. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry and Elevation, CMHRP, Coastal and Marine Hazards and Resources Program, Dutch Harbor, AK, PCMSC, All tags... Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, U.S. Geological Survey, USGS, bathymetry, continental shelf, environment, geoscientificInformation, geospatial datasets, marine geophysics, marine geophysics, multibeam echo sounder, multibeam sonar, oceans, Fewer tags MGL1109centerdepth.shp: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, along-track center-beam depths extracted from 100-meter gridded data in shapefile format, geographic coordinates This shapefile contains center-beam depths for approximately 5804 trackline kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey (USGS) cruise MGL1109 aboard the R/V Marcus G. Langseth. The depth values were extracted from gridded data which were reduced for position, elevation, orientation, water-column sound-speed, and refraction effects. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aleutian Basin, Aleutian Trench, Baranof Fan, Bathymetry and Elevation, Bering Sea, All tags... Bowers Ridge, Bowie Seamount, CMHRP, Coastal and Marine Hazards and Resources Program, Dutch Harbor, Extended Continental Shelf, Gulf of Alaska, Kodiak Island, Kodiak Seamount, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Shirshov Ridge, Surveyor Fan, U.S. Geological Survey, USGS, Umnak Plateau, bathymetry, continental shelf, environment, geoscientificInformation, geospatial datasets, marine geophysics, marine geophysics, multibeam echo sounder, multibeam sonar, oceans, Fewer tags GeoTIFF image of shaded-relief bathymetry, colored by backscatter intensity, of the sea floor of the Hudson Shelf Valley (12-m resolution, Mercator, 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), GeoTIFF image, Hudson Canyon, All tags... Hudson Shelf Valley, 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, WHCMSC field activity 1998-015-FA, WHCMSC field activity 2000-015-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), backscatter intensity, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor mapping, shaded-relief bathymetry, Fewer tags GeoTIFF image of the backscatter intensity of the sea floor offshore of Shinnecock Inlet, New York, in 1998 (3-m resolution, Mercator, 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: 3-m resolution, Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), GeoTIFF image, All tags... Long Island, Middle Atlantic Bight, 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), backscatter intensity, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, Fewer tags Multibeam Echosounder, Reson T-20P tracklines, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (Esri polyline shapefile, GCS WGS 84) High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: BOEM, Bureau of Ocean Energy Management, CMGP, Coastal and Marine Geology Program, Gulf of Mexico, All tags... Marine Geology, Mississippi River Delta front, Pass a Loutre, Reson, South Pass, Southeast Louisiana, Southwest Pass, T20P, U.S. Geological Survey, USGS, WHCMSC, Woods Hole Coastal and Marine Science Center, backscatter, bathymetry, bathymetry, field activity number 2017-003-FA, geoscientificInformation, location, marine geology, marine geophysics, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, navigational data, oceans, sea-floor acoustic reflectivity, shapefile, trackline navigation, Fewer tags 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 Seismic Reflection, Geometrics multi-channel streamer tracklines, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (Esri polyline shapefile, GCS WGS 84) High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Applied Acoustics, BOEM, Bureau of Ocean Energy Management, CMGP, Coastal and Marine Geology Program, All tags... GeoEel, Geometrics, Gulf of Mexico, Marine Geology, Mississippi River Delta front, Pass a Loutre, S-boom, SIG, South Pass, Southeast Louisiana, Southwest Pass, U.S. Geological Survey, USGS, WHCMSC, Woods Hole Coastal and Marine Science Center, boomer, field activity number 2017-003-FA, location, marine geology, marine geophysics, multi-channel streamer, navigational data, oceans, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, sparker, trackline navigation, Fewer tags Seismic reflection-tracklines, shotpoints, and profile images collected in Belfast Bay, Maine using an EdgeTech SB-424 subbottom profiler during USGS field activities 2006-024-FA and 2009-037-FA (Esri polyline, and point shapefiles, WGS 84, and JPEG images) 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, Edgetech, Field Activity 2006-024-FA, Field Activity 2009-037-FA, Gulf of Maine, Maine, Penobscot Bay, RV Rafael, SB-424, U.S. Geological Survey, USGS, United States of America, University of Maine, WHCMSC, Woods Hole Coastal and Marine Science Center, chirp, geology, geophysics, geoscientificInformation, geospatial datasets, image, location, navigational data, oceans, pockmarks, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, sub-botom profiling, trackline navigation, Fewer tags GeoTIFF image of shaded-relief bathymetry, colored by backscatter intensity, of the sea floor offshore of Moriches Inlet, New York, in 1998 (3-m resolution, Mercator, 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: 3-m resolution, Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), GeoTIFF image, All tags... Long Island, Middle Atlantic Bight, 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), backscatter intensity, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, Fewer tags Grid of the sea-floor bathymetry offshore of Shinnecock Inlet, New York, in 1998 (3-m resolution Esri binary grid, Mercator, 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: 3-m grid, Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), Esri binary grid, All tags... Long Island, Middle Atlantic Bight, 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), bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, Fewer tags GeoTIFF image of shaded-relief bathymetry of the sea floor offshore of Fire Island Inlet, New York, in 1998 (3-m resolution, Mercator, 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: 3-m resolution image, Fire Island, GeoTIFF image, Long Island, Middle Atlantic Bight, All tags... New York, New York Bight, North Atlantic Ocean, Simrad EM1000, WHCMSC field activity 1998-015-FA, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, 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 Grid of the sea-floor bathymetry offshore of Fire Island Inlet, New York, in 1998 (3-m resolution Esri binary grid, Mercator, 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: 3-m grid, Esri binary grid, Fire Island, Long Island, Middle Atlantic Bight, All tags... New York, New York Bight, North Atlantic Ocean, Simrad EM1000, WHCMSC field activity 1998-015-FA, bathymetry, elevation, geoscientificInformation, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor mapping, 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 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 Geomorphic provinces in the Hudson Canyon region (polyline shapefile, geographic, WGS 84) The Hudson Canyon begins on the outer continental shelf off the east coast of the United States at about 100-meters (m) water depth and extends offshore southeastward across the continental slope and rise. A multibeam survey was carried out in 2002 to map the bathymetry and backscatter intensity of the sea floor of the Hudson Canyon and adjacent slope and rise. The survey covered an area approximately 205 kilometers (km) in the offshore direction, extending from about 500 m to about 4,000 m water depth, and about 110 km in the alongshore direction, centered on the Hudson Canyon. The sea floor was mapped using a SeaBeam Instruments 2112 multibeam echosounder aboard the National Oceanic and Atmospheric Administration... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Coastal and Marine Geology Program (CMGP), Hudson Canyon, Middle Atlantic Bight, NOAA ship Ronald H. Brown, National Oceanic and Atmospheric Administration (NOAA), All tags... New York Bight, North Atlantic Ocean, Rutgers Institute of Coastal and Marine Sciences, SeaBeam Instruments 2112 multibeam, U.S. Geological Survey (USGS), USGS Open-File Report 2004-1441, WHCMSC field activity 2002-050-FA, Woods Hole Coastal and Marine Science Center (WHCMSC), base of slope, canyon floor, canyon floor - filled, canyon wall, geoscientificInformation, imageryBaseMapsEarthCover, interpretation, lower rise, marine geology, morphology, multibeam, ocean sciences, oceans, polyline shapefile, rise valley, sea floor, sea floor mapping, sea-floor characteristics, upper rise, Fewer tags GeoTIFF image of shaded-relief bathymetry, colored by backscatter intensity, of the sea floor southwest of Montauk Point, New York, in 1998 (3-m resolution, Mercator, 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: 3-m resolution image, Canadian Coast Guard ship (CCGS) Frederick G. Creed, Canadian Hydrographic Service, Coastal and Marine Geology Program (CMGP), GeoTIFF image, All tags... Long Island, Middle Atlantic Bight, Montauk Point, 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), backscatter intensity, geoscientificInformation, image, imageryBaseMapsEarthCover, mid-Atlantic Bight, multibeam, oceans, sea floor, sea floor mapping, shaded-relief bathymetry, 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 Survey lines along which swath sonar (bathymetric and backscatter) data were collected in 2016 by the U.S. Geological Survey off Town Neck Beach Sandwich, Massachusetts during field activity 2016-017-FA Geophysical and geological survey data were collected off Town Neck Beach in Sandwich, Massachusetts, in May and July 2016. Approximately 130 linear kilometers of subbottom (seismic-reflection) and 234-kilohertz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, sea floor photographs, and (or) video at 26 sites within the geophysical survey area. Sediment grab samples were collected at 19 of the 26 sampling sites and video and (or) photographic imagery of the sea floor were taken at all 26 sites. These survey data are used to characterize the sea floor by identifying sediment-texture, seabed morphology, and underlying geologic structure and stratigraphy. Data collected... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, CMGP, Cape Cod Bay, Coastal and Marine Geology Program, Gulf of Maine, All tags... Marine Geology, Massachusetts, North America, R/V Rafael, SEA SWATHPlus, SEA Submetrix, Sandwich, Town Neck Beach, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, backscatter, bathymetry, bathymetry, beach, coast, field activity 2016-017-FA, geomorphology, interferometric sonar, interferometry, location, marine geology, marine geophysics, marine geophysics, navigational data, oceans, sea floor, sea-floor acoustic reflectivity, sea-floor characteristics, seafloor, sedimentary environments, shapefile, shore, survey line, swath bathymetry, trackline, 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 1 2 3 »