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Chirp seismic reflection - shotpoints, tracklines, profile images, and SEG-Y traces for EdgeTech SB-512i chirp data collected during USGS field activity 2017-002-FA In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomac Canyon, Atlantic Margin, Atlantic Ocean, CMHRP, Chincoteague Ridge, All tags... Coastal and Marine Hazards and Resources Program, DOE, DOI, Department of Energy, Department of the Interior, EdgeTech, Keller Canyon, Norfolk Canyon, PNG, R/V Hugh R. Sharp, SB-512i, SEG-Y traces, U.S. Geological Survey, USGS, United States of America, University of Rochester, WHCMSC, Washington Canyon, Woods Hole Coastal and Marine Science Center, chirp, field activity number 2017-002-FA, geoscientificInformation, geospatial datasets, image, location, marine geology, marine geology, marine geophysics, navigational data, oceans, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, sub-bottom profiling, trackline navigation, Fewer tags Multibeam bathymetric data collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA, using a dual-head Reson T20-P multibeam echosounder (32-bit GeoTIFF, UTM Zone 18N, NAD 83, NAVD 88 Vertical Datum, 4-m resolution) The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Beach Haven, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, Department of the Interior, All tags... Forsythe Wildlife Refuge, GeoTIFF, Holgate, Little Egg Inlet, Long Beach Island, Marine Geology, New Jersey, R/V Petrel, Reson, Stockton University, T20P, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, backscatter, bathymetry, bathymetry, elevation, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, imageryBaseMapsEarthCover, marine geology, marine geophysics, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, oceans, sea-floor acoustic reflectivity, Fewer tags Photographs and locations of bottom still imagery collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-049-FA (JPEG images, point shapefile, and CSV file) The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach Haven, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, Department of the Interior, All tags... Forsythe Wildlife Refuge, GoPro HERO4 Black, Holgate, JPEG, JPG, Little Egg Inlet, Long Beach Island, New Jersey, R/V Petrel, SEABOSS, SEABed Observation and Sampling System, Stockton University, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, bottom imagery, bottom photographs, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, ground-truth, image collections, imagery, location, marine geology, marine geology, mini-SEABOSS, navigational data, oceans, photography, photos, sea floor, sea-floor characteristics, seabed imagery, seabed photographs, seafloor, sediments, shapefile, stations, underwater photography, Fewer tags MGL1111backsutm.tif: Multibeam backscatter data collected by the U.S. Geological Survey in the Bering Sea in 2011 during cruise MGL1111, 100-meter gridded data in GeoTIFF format, UTM zone 60 coordinates This raster dataset represents approximately 49,581 square kilometers of Simrad EM122 multibeam backscatter-intensity data collected in the Bering Sea during U.S. Geological Survey (USGS) cruise MGL1111 aboard the R/V Marcus G. Langseth. Calibrated backscatter-intensity time-series data were adjusted for range-angle, beam pattern, and power-gain distortions. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Dutch Harbor, PCMSC, Pacific Coastal and Marine Science Center, All tags... Physical Habitats and Geomorphology, Substrate, U.S. Geological Survey, USGS, backscatter intensity, continental shelf, environment, geoscientificInformation, geospatial datasets, image mosaics, marine geophysics, marine geophysics, multibeam echo sounder, multibeam sonar, oceans, sea-floor acoustic reflectivity, sea-floor characteristics, seismic methods, Fewer tags Multibeam Echosounder, Reson T-20P bathymetry overview (10-m), USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (32-bit GeoTIFF, UTM Zone 16N, NAD 83, NAVD 88 Vertical Datum) 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, GeoTIFF, Map Service, Raster; Tags: BOEM, Bureau of Ocean Energy Management, CMGP, Coastal and Marine Geology Program, GeoTIFF, All tags... Gulf of Mexico, 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, bathymetry, bathymetry, elevation, field activity number 2017-003-FA, geoscientificInformation, imageryBaseMapsEarthCover, marine geology, marine geophysics, multibeam bathymetry, multibeam echosounder, multibeam sonar, oceans, Fewer tags Physiographic Zones of the Sea Floor offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Aquinnah, Atlantic Ocean, Backscatter, Bathymetry, CMGP, All tags... CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal Embayment, Coastal and Marine Geology Program, Coatue, Dionis Beach, Ebb-tidal Delta, Eel Point, Esri Shapefile, Gay Head, Great Point, Hard-bottom Plain, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nearshore Basin, Nearshore Ramp, Nomans Land, Outer Basin, Physiographic Zones, Rocky Zone, Sea floor, Shell Zone, Shoal\Sand Wave, Shovelful Shoal, Slope, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Topography, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, geoscientificInformation, geospatial datasets, marine geology, oceans, scientific information, sea-floor characteristics, sedimentology, sieve-size analysis, unconsolidated deposits, Fewer tags Interpretation of sea floor geologic units for offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: 3200, 424, 512i, Aquinnah, Atlantic Ocean, All tags... Boomer, CMGP, CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Dionis Beach, EdgeTech, Eel Point, Esri Shapefile, Gay Head, Geologic Framework, Great Point, Holocene, Interpretation, Katama Beach, Knudsen, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Pleistocene, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Surficial Geology, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Woods Hole Coastal and Marine Science Center, geoscientificInformation, geospatial datasets, marine geology, oceans, scientific interpretation, sea-floor characteristics, sedimentation, unconsolidated deposits, Fewer tags Sonobuoy Seismic and Navigation Data Collected Using Sercel GI Guns and Ultra Electronics Seismic Sonobuoys During the Mid-Atlantic Resource Imaging Experiment (MATRIX), USGS Field Activity 2018-002-FA In summer 2018, the U.S. Geological Survey partnered with the U.S Department of Energy and the Bureau of Ocean Energy Management to conduct the Mid-Atlantic Resources Imaging Experiment (MATRIX) as part of the U.S. Geological Survey Gas Hydrates Project. The field program objectives were to acquire high-resolution 2-dimensional multichannel seismic-reflection and split-beam echo sounder data along the U.S Atlantic margin between North Carolina and New Jersey to determine the distribution of methane gas hydrates in below-sea floor sediments and investigate potential connections between gas hydrate dynamics and sea floor methane seepage. MATRIX field work was carried out between August 8 and August 28, 2018 on the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, BOEM, Bureau of Ocean Energy Management, CMHRP, Cape Hatteras, All tags... Coastal and Marine Hazards and Resources Program, DOE, DOI, Delaware, Department of Energy, Department of the Interior, HRS1807, MATRIX, Marine Geology, Maryland, Mid-Atlantic Margin, Mid-Atlantic Resources Imaging Experiment, New Jersey, North Carolina, PNG, R/V Hugh R. Sharp, SEG-Y, Sercel, U.S. Economic Exclusive Zone, U.S. Geological Survey, USGS, Ultra Electronics, United States of America, Virginia, WHCMSC, Woods Hole Coastal and Marine Science Center, expendable sonobuoy, field activity number 2018-002-FA, generator-injector airgun, geoscientificInformation, image, location, marine geology, marine geophysics, navigation, oceans, seismic profile, seismic reflection, seismic reflection methods, seismic refraction, shapefile, sonobuoy profile, Fewer tags Grain-size analysis results and locations of sediment samples ollected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-049-FA (simplified point shapefile and CSV files) The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Beach Haven, CMHRP, CSV, Coastal and Marine Hazards and Resources Program, DOI, All tags... Department of the Interior, Forsythe Wildlife Refuge, HORIBA LA-960 laser diffraction analyzer, Holgate, Little Egg Inlet, Long Beach Island, New Jersey, R/V Petrel, SEABOSS, SEABed Observation and Sampling System, Stockton University, U.S. Geological Survey, USGS, United States of America, Van Veen grab sampler, WHCMSC, Woods Hole Coastal and Marine Science Center, clay, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, grab sampling, grain-size analysis, gravel, ground-truth, location, marine geology, marine geology, mini-SEABOSS, oceans, sand, sea floor, sea-floor characteristics, seafloor, seafloor samples, sediment data, sediment samples, sediments, shapefile, silt, stations, surficial sediment classification, Fewer tags Elevation of the late Wisconsinan to early Holocene regressive unconformity (Ur) offshore of western and southern Martha's Vineyard and north of Nantucket, Massachusetts Geologic, sediment texture, and physiographic zone maps characterize the sea floor south and west of Martha's Vineyard and north of Nantucket, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 32-bit GeoTIFF, 512i, Aquinnah, Atlantic Ocean, CMGP, All tags... CZM, Cape Cod, Chappaquiddick Island, Children's Beach, Chilmark, Coastal and Marine Geology Program, Coatue, Depth to glacial deposits, Dionis Beach, EdgeTech, Eel Point, Gay Head, Geologic Framework, Great Point, Holocene, Holocene, Interpretation, Katama Beach, Long Point Wildlife Refuge, Lucy Vincent Beach, Marine Geology, Martha's Vineyard, Massachusetts, Massachusetts Office of Coastal Zone Management, Muskeget Channel, Muskeget Island, Nantucket, Nantucket Harbor, Nantucket Sound, Nomans Land, Pleistocene, Regressive Unconformity, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Shovelful Shoal, South Beach, Squibnocket Beach, Squibnocket Point, Tisbury, Tisbury Great Pond Beach, Tuckernuck Bank, Tuckernuck Island, Tuckernuck Shoal, U.S. Geological Survey, U.S. Geological Survey Open-File Report 2008-1288, U.S. Geological Survey Open-File Report 2012-1006, U.S. Geological Survey Open-File Report 2016-1168, USGS, Vineyard Sound, WHCMSC, Wasque Shoal, Wasque point, Wisconsinan, Woods Hole Coastal and Marine Science Center, geologic contacts, geologic structure, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, marine geology, oceans, scientific interpretation, sea-floor characteristics, sedimentation, unconsolidated deposits, Fewer tags Multibeam backscatter data collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA, using a dual-head Reson T20-P multibeam echosounder (8-bit GeoTIFF, UTM Zone 18N, WGS 84, 2 meter resolution) The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Beach Haven, CMHRP, Coastal and Marine Hazards and Resources Program, DOI, Department of the Interior, All tags... Forsythe Wildlife Refuge, GeoTIFF, Holgate, Little Egg Inlet, Long Beach Island, Marine Geology, New Jersey, R/V Petrel, Reson, Stockton University, T20P, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, backscatter, bathymetry, bathymetry, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, imageryBaseMapsEarthCover, marine geology, marine geophysics, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, oceans, sea-floor acoustic reflectivity, Fewer tags Sound velocity profile data from an AML Oceanographic MVP30 collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA (PNG images, CSV text, ASVP text, and point shapefile, GCS WGS 84) The natural resiliency of the New Jersey barrier island system, and the efficacy of management efforts to reduce vulnerability, depends on the ability of the system to recover and maintain equilibrium in response to storms and persistent coastal change. This resiliency is largely dependent on the availability of sand in the beach system. In an effort to better understand the system's sand budget and processes in which this system evolves, high-resolution geophysical mapping of the sea floor in Little Egg Inlet and along the southern end of Long Beach Island near Beach Haven, New Jersey was conducted from May 31 to June 10, 2018, followed by a sea floor sampling survey conducted from October 22 to 23, 2018, as part... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: AML Oceanographic MVP30, AML Oceanographic Moving Vessel Profiler, Beach Haven, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Esri shapefile, Forsythe Wildlife Refuge, Holgate, Little Egg Inlet, Long Beach Island, MVP, Marine Geology, New Jersey, R/V Petrel, SSP, SVP, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, field activity number 2018-001-FA, field activity number 2018-049-FA, geoscientificInformation, location, moving vessel profiler, navigational data, ocean sciences, oceans, shapefile, sound speed profile, sound velocity, sound velocity profile, sound velocity profiles, Fewer tags Continuous Bathymetry and Elevation Models of the Massachusetts Coastal Zone and Continental Shelf (ver. 3.0, December 2019) Integrated terrain models covering 16,357 square kilometers of the Massachusetts coastal zone and offshore waters were built to provide a continuous elevation and bathymetry terrain model for ocean planning purposes. The area is divided into the following four geographical areas to reduce file size and facilitate publishing: Massachusetts Bay from the Massachusetts-New Hampshire border south to Provincetown and Scituate and east to Stellwagen Bank; Cape Cod Bay from Provincetown to Scituate and south to Hyannis; Buzzards Bay from the Cape Cod Canal southwest to the State border including the Elizabeth Islands and extending north to Fall River and Mount Hope Bay; and Nantucket and Vineyard Sounds, from Hyannis south... Categories: Data, Data Release - Revised; Tags: Boston Harbor, Buzzards Bay, Cape Cod Bay, Commonwealth of Massachusetts, Elizabeth Islands, All tags... Gulf of Maine, Massachusetts Bay, Nantucket Sound, Plymouth Bay, Stellwagen Bank, Vineyard Sound, bathymetry, digital elevation models, sea-floor characteristics, Fewer tags Split-beam echo sounder - navigation points, tracklines, and profile images for Simrad EK60 split-beam echo sounder data collected during USGS field activities 2017-001-FA and 2017-002-FA In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Accomac Canyon, Atlantic Margin, Atlantic Ocean, Baltimore Canyon, CMHRP, All tags... Chincoteague Ridge, Coastal and Marine Hazards and Resources Program, DOE, DOI, Department of Energy, Department of the Interior, IMMeRSS, Interagency Mission for Methane Research on Seafloor Seeps, Keller Canyon, NOAA-OER, Norfolk Canyon, PNG, R/V Hugh R. Sharp, Simrad .raw format, Simrad EK60 general purpose trancever, Simrad ES38-10 transducer, U.S. Geological Survey, USGS, United States of America, University of Rochester, WHCMSC, Washington Canyon, Woods Hole Coastal and Marine Science Center, field activity number 2017-001-FA, field activity number 2017-002-FA, geoscientificInformation, geospatial datasets, image, location, marine geophysics, marine geophysics, navigational data, oceanography, oceans, scientific echo sounder, shapefile, sonar methods, split-beam echo sounder, split-beam echo sounder navigation, split-beam echo sounder profile, trackline navigation, Fewer tags Multibeam Echosounder, Reson T-20P Southwest Pass site backscatter (4-m), USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (8-bit GeoTIFF, UTM Zone 16N, NAD 83) 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, GeoTIFF, Map Service, Raster; Tags: BOEM, Bureau of Ocean Energy Management, CMGP, Coastal and Marine Geology Program, GeoTIFF, All tags... Gulf of Mexico, 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, imageryBaseMapsEarthCover, marine geology, marine geophysics, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, oceans, sea-floor acoustic reflectivity, Fewer tags Seismic Reflection, EdgeTech SB-424 chirp shot points collected within Lake Powell, UT-AZ during USGS field activity 2017-049-FA (CSV text and Esri point shapefile, GCS WGS 84) High-resolution geophysical mapping of Lake Powell in the Glen Canyon National Recreation Area in Utah and Arizona was conducted between October 8 and November 15, 2017, as part of a collaborative effort between the U.S. Geological Survey and the Bureau of Reclamation to provide high-quality data needed to reassess the area-capacity tables for the Lake Powell reservoir. Seismic data collected during this survey can help to define the rates of deposition within the San Juan and Colorado Rivers, which are the main inflows to Lake Powell. These new data are intended to improve water budget management decisions that affect the natural and recreational resources of the reservoir. Multibeam echosounder bathymetry and... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Antelope Canyon, BOR, Bullfrog, Bullfrog Bay, Bureau of Reclamation, All tags... CMGP, CRSP, Coastal and Marine Geology Program, Coconino County, Colorado River, Colorado River Storage Project, DOI, Dangling Rope, Department of the Interior, Edgetech, Escalante River, Friendship Bay, Garfield County, Glen Canyon, Glen Canyon Dam, Glen Canyon National Recreation Area, Good Hope Bay, Great Bend, Gunsight Bay, Halls Bay, Halls Crossing, Hite, Kane County, Lacustrine Geology, Lake Powell, Last Chance Bay, NPS, National Park Service, Navajo Canyon, Padre Bay, Page, R/V Stephens, Rainbow Bridge National Monument, Rock Creek Bay, SB-424, San Juan County, San Juan River, State of Arizona, State of Utah, U.S. Geological Survey, USGS, UWSC, United States of America, Utah Water Science Center, WHCMSC, Wahweap, Wahweap Bay, Warm Creek Bay, Woods Hole Coastal and Marine Science Center, chirp, field activity number 2017-049-FA, geology, geophysics, geoscientificInformation, geospatial datasets, inlandWaters, location, navigational data, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, trackline navigation, Fewer tags MGL1109bathyutm.tif: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gridded data in GeoTIFF format, UTM 6 coordinates This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine Geology Program cruise MGL1109 aboard the R/V Marcus G. Langseth. The data have been reduced for position, elevation, orientation, water-column sound-speed, and refraction effects. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; 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 MGL1109shadeutm.tif: Multibeam bathymetry data collected by the U.S. Geological Survey in the Gulf of Alaska in 2011 during cruise MGL1109, 100-meter gray-shaded relief This raster dataset represents approximately 69,060 square kilometers of Simrad EM122 multibeam-bathymetry data collected in the Gulf of Alaska during U.S. Geological Survey - Coastal and Marine Geology Program cruise MGL1109 aboard the R/V Marcus G. Langseth. The data have been reduced for position, elevation, orientation, water-column sound-speed, and refraction effects. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Aleutian Basin, Aleutian Trench, Baranof Fan, Bering Sea, Bowers Ridge, All tags... 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, continental shelf, environment, geoscientificInformation, geospatial datasets, marine geophysics, marine geophysics, multibeam echo sounder, multibeam sonar, oceans, Fewer tags MGL1111bathyutm.tif: Multibeam bathymetry data collected by the U.S. Geological Survey in the Bering Sea in 2011 during cruise MGL1111, 100-meter gridded data in GeoTIFF format, UTM coordinate system This raster dataset represents approximately 49,581 square kilometers of Simrad EM122 multibeam backscatter-intensity data collected in the Bering Sea during U.S. Geological Survey (USGS) cruise MGL1111 aboard the R/V Marcus G. Langseth. Calibrated backscatter-intensity time-series data were adjusted for range-angle, beam pattern, and power-gain distortions. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Bathymetry and Elevation, CMHRP, Coastal and Marine Hazards and Resources Program, Dutch Harbor, 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, seismic methods, Fewer tags Thickness of Quaternary seismic stratigraphic units offshore of the Delmarva Peninsula, including Maryland and Virginia state waters Geologic structure and isopach maps were constructed by interpreting over 19.890 trackline kilometers of co-located multichannel boomer, sparker and chirp seismic reflection profiles from the continental shelf of the Delmarva Peninsula, including Maryland and Virginia state waters. In this region, Brothers and others (2020) interpret 12 seismic units and 11 regional unconformities. They interpret the infilled channels as Late Tertiary and Quaternary courses of the Susquehanna, Potomac, Rappahannock, York and James Rivers and tributaries, in addition to a broad drainage system. These regional unconformities form a composite unconformity interpreted as the Quaternary-Tertiary (Q-T) unconformity. A depth to Tertiary... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: 32-bit GeoTIFF, Applied Acoustics S-Boom Source, Assateague Island, Assateague Island National Seashore, Atlantic Ocean, All tags... BOEM, Bureau of Ocean Energy Management, CMHRP, Chesapeake Bay, Chincoteague Bay, Chincoteague Bight, Chincoteague Inlet, Chincoteague Island, Chincoteague National Wildlife Refuge, Coastal and Marine Hazards and Resources Program, Cobb Island, Delaware, Delmarva Peninsula, Fisherman Island, Geologic Framework, Geometrics 16-channel Geoeel Streamer, Hog Island, Holocene, Holocene, Interpretation, James River, Marayland Energy Administration, Marine Geology, Maryland, Maryland Wind Energy Area, Myrtle Island, Parramore Island, Persimmons Point, Pleistocene, Potomac River, Quaternary, Rappahannock River, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Ship Shoal Island, Smith Island, Susquehanna River, Tertiary, U.S. Geological Survey, USGS, Unconformity, Virginia, WHCMSC, Wallops Island, Woods Hole Coastal and Marine Science Center, Wreck Island, geologic contacts, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, marine geology, oceans, scientific interpretation, Fewer tags « 1 2 3 4 »