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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 Chirp seismic reflection data from the Edgetech 512i collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS field activity 2018-001-FA (shotpoints point shapefile, survey trackline shapefile, PNG profile images, and SEG-Y trace data). 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, EdgeTech, Forsythe Wildlife Refuge, All tags... Holgate, Little Egg Inlet, Long Beach Island, New Jersey, PNG, R/V Petrel, SB-512i, SEG-Y traces, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, chirp, field activity number 2018-001-FA, field activity number 2018-049-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 Echosounder, Reson T-20P tracklines collected in Little Egg Inlet and offshore the southern end of Long Beach Island, NJ, during USGS Field Activity 2018-001-FA (Esri polyline 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: 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, field activity number 2018-001-FA, field activity number 2018-049-FA, geology, geophysics, geoscientificInformation, geospatial datasets, imageryBaseMapsEarthCover, multibeam backscatter, multibeam bathymetry, multibeam echosounder, multibeam sonar, navigational data, oceans, Fewer tags Sound velocity profiles - locations, images, and text files for sound velocity profiles calculated from XBT and CTD casts conducted 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 Ocean, CMHRP, Chincoteague Ridge, Coastal and Marine Hazards and Resources Program, All tags... 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, SSP, SVP, Seabird Electronics 911plus CTD, Sippican XBT, 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, location, marine geophysics, navigational data, ocean sciences, oceanography, oceans, shapefile, sound speed profile, sound velocity, sound velocity profile, sound velocity profiles, Fewer tags Split-beam Echo Sounder and Navigation Data Collected Using a Simrad EK80 Wide Band Tranceiver and ES38-10 Transducer 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 echosounder 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, Data Release - In Progress; 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, Maryland, Mid-Atlantic Margin, Mid-Atlantic Resources Imaging Experiment, New Jersey, North Carolina, PNG, R/V Hugh R. Sharp, Simrad .raw format, Simrad EK80 wide band transceiver, Simrad ES38-10 transducer, U.S. Economic Exclusive Zone, U.S. Geological Survey, USGS, United States of America, Virginia, WHCMSC, Woods Hole Coastal and Marine Science Center, field activity number 2018-002-FA, geoscientificInformation, geospatial datasets, image, location, marine geophysics, marine geophysics, navigation, navigational data, oceanography, oceans, scientific echo sounder, shapefile, sonar methods, split-beam echo sounder, split-beam echo sounder profile, Fewer tags Seismic Reflection, EdgeTech SB-424 Chirp tracklines collected in the vicinity of Buffalo Reef, Michigan, within Lake Superior during USGS field activity 2018-043-FA, (Esri polyline shapefile, GCS 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... Edgetech, Houghton County, Keweenaw County, Lacustrine Geology, Lake Superior, R/V Rafael, SB-424, State of Michigan, Traverse Bay, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, chirp, field activity number 2018-043-FA, geology, geophysics, geoscientificInformation, geospatial datasets, inlandWaters, location, navigational data, seismic navigation, seismic profile, seismic reflection, seismic reflection methods, shapefile, trackline navigation, 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 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 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 Trackline navigation for EdgeTech SB-512i chirp and multichannel sparker seismic-reflection data collected in 2013 by Coastal Planning & Engineering, Inc. for the Maryland Energy Administration offshore of the Delmarva Peninsula (polyline shapefiles) 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, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Margin, Atlantic Ocean, BOEM, Bureau of Ocen and Energy Management, CMHRP, All tags... Coastal and Marine Hazards and Resources Program, Delmarva Peninsula, Interpretation, Marine Geology, Maryland, Maryland Energy Administration, Maryland Wind Energy Area, Navigation, Sea floor, Seismic Interpretation, Seismic-reflection Profiles, Shapefile, U.S. Geological Survey, USGS, United States of America, WHCMSC, Woods Hole Coastal and Marine Science Center, geoscientificInformation, geospatial datasets, location, marine geology, marine geophysics, navigational data, oceans, seismic reflection methods, sub-bottom profiling, 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 Navigation data for marine geophysical data collected between Punta Gorda and Fort Bragg (northern California) during field activity B-04-12-NC from 09/17/2012 to 09/25/2012 This dataset includes navigation data for marine geophysical data jointly collected by the U.S. Geological Survey (USGS) and Oregon State University in 2012, between Punta Gorda and Fort Bragg in northern California. Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, Continental Margins, Fort Bragg, All tags... Humboldt County, Mendocino County, Noyo Canyon, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Point Delgada, Punta Gorda, Shelter Cove, State of California, U.S. Geological Survey, USGS, USGS:57058336e4b0d4e2b75728f1, distributions, geoscientificInformation, marine geophysics, navigational data, oceans, 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 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 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 Sea-Floor Sediment and Imagery Data Collected in Long Island Sound, Connecticut and New York, 2017 and 2018 Two marine geological surveys were conducted in Long Island Sound, Connecticut and New York, in fall 2017 and spring 2018 by the U.S. Geological Survey, University of Connecticut, and University of New Haven through the Long Island Sound Mapping and Research Collaborative. Sea-floor images and videos were collected at 210 sampling sites within the survey area, and surficial sediment samples were collected at 179 of the sites. The sediment data and the observations from the images and videos are used to identify sediment texture and sea-floor habitats. Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic Ocean, Connecticut, Fishers Island, Fishers Island Sound, Long Island Sound, All tags... Marine Geology, New York, North America, United States, grab sampling, grain-size analysis, image collections, marine geology, navigational data, photography, sea-floor characteristics, underwater photography, video monitoring, videography, videos, Fewer tags Navigation data for marine geophysical data collected between Point Sal and Refugio State Beach (southern California) during field activity 2014-632-FA from 07/17/2014 to 08/02/2014 This dataset includes navigation data for marine geophysical data, collected by the U.S. Geological Survey (USGS) in 2014, between Point Sal and Refugio State Beach in southern California. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, Cojo Ranch, Continental Margins, All tags... Government Point, Hollister Ranch, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Point Conception, Point Sal, Point Sal State Beach, Refugio Beach, Santa Barbara County, State of California, U.S. Geological Survey, USGS, geoscientificInformation, geospatial datasets, marine geophysics, navigational data, oceans, seismic reflection profiling, 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 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 Video transects of the sea floor collected by the U.S. Geological Survey on Stellwagen Bank during six surveys aboard the R/V Auk, May 2016 to April 2019 These data are a part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics. The work was conducted in collaboration with the Stellwagen Bank National Marine Sanctuary, and the data collected will aid research on the ecology of fish and invertebrate species that inhabit the region. The Sanctuary's research vessel, R/V Auk, visited a total of 233 locations on Stellwagen Bank during six separate surveys from May 2016 to April 2019. During these surveys a customized... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, CMHRP, Coastal and Marine Hazards and Resources Program, Massachusetts, Massachusetts Bay, All tags... NOAA, National Oceanic and Atmospheric Administration, North America, SBNMS, SEABOSS, SEABed Observation and Sampling System, Stellwagen Bank, Stellwagen Bank National Marine Sanctuary, U.S. Geological Survey, USGS, United States, WHCMSC, Woods Hole Coastal and Marine Science Center, location, marine geology, navigation, navigational data, oceans, polyline shapefile, stations, trackline, video, video observation, videography, videos, Fewer tags 1 2 »