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Landslides offshore of southern California, 2023 Landslides have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES), single-beam echosounder data, and seismic reflection data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Digital maps of submarine landslides and mass wasting features offshore of southern California This data release provides the locations and certain key metrics of landslide features offshore southern California, including landslide perimeters, scarps, evacuation zones, debris aprons, and slide-prone areas in geographic information system (GIS) shapefile format. The offshore region of southern California is a tectonically active area that includes more than 20 fault-bounded basins and ridges that are subject to various types of mass-wasting and landslide processes. The collection of high-resolution seafloor mapping data offshore southern California, mostly within the last 25 years, provide a new data set that forms the basis for the identification and mapping of landslides and slide-related features throughout... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Geomorphology, Geophysics, All tags... Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Landslide evacuation zones offshore of Southern California, 2023 Landslide evacuation zones, which represent the areas from which material is removed by landslide processes, have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Landslide scarps offshore of Southern California, 2023 Landslide scarp features have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Oceanographic Observations Made Near South Padre Island, Texas, as Part of the South Padre Island Beach Replenishment Study, August 2018–February 2019 (ver. 1.1, November 2020) Beaches and water recreation are important to the South Padre Island, Texas area and across the United States. The movement of sediment in channels along beaches and the nearshore environment is important for coastal stakeholders and resource managers. Sediment removed by maintenance dredging is often placed back into the littoral system for potential beach replenishment. The movement of sediment from offshore berms to onshore beaches is not well known. Sediment transport is highly dependent on local current conditions and seasonal conditions. The U.S. Geological Survey, in cooperation with the City of South Padre Island, completed an oceanographic field study from August 2018 to February 2019 to investigate the... Categories: Data, Data Release - Revised; Tags: Cameron, Currents, Oceanographic observations, Port Isabel, Pressure, All tags... South Laguna Madre, South Padre Island, Temperature, USGS Science Data Catalog (SDC), Waves, climatologyMeteorologyAtmosphere, geoscientificInformation, marine geophysics, navigational data, oceans, Fewer tags Oceanographic Wave Observations Made Near South Padre Island, Texas, as Part of the South Padre Island Beach Replenishment Study, August 2018–February 2019 Beaches and water recreation are important to the South Padre Island, Texas area and across the United States. The movement of sediment in channels along beaches and the nearshore environment is important for coastal stakeholders and resource managers. Sediment removed by maintenance dredging is often placed back into the littoral system for potential beach replenishment. The movement of sediment from offshore berms to onshore beaches is not well known. Sediment transport is highly dependent on local current conditions and seasonal conditions. The U.S. Geological Survey, in cooperation with the City of South Padre Island, completed an oceanographic field study from August 2018 to February 2019 to investigate the... Categories: Data; Tags: Cameron, Currents, Oceanographic observations, Port Isabel, Pressure, All tags... South Laguna Madre, South Padre Island, Temperature, Waves, climatologyMeteorologyAtmosphere, geoscientificInformation, marine geophysics, navigational data, oceans, Fewer tags Station and data summary for data collected by the U.S. Geological Survey on Stellwagen Bank during three surveys aboard the R/V Auk, September 2020 to August 2021 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 169 locations on Stellwagen Bank during three separate surveys from September 2020 to August 2021. During these surveys a customized... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Atlantic Ocean, CMHRP, CTD measurement, Coastal and Marine Hazards and Resources Program, Massachusetts, All tags... Massachusetts Bay, 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, field activity logs, field monitoring stations, location, marine geology, marine geology, navigation, oceanographic observations, oceans, sampling, stations, video observation, videos, Fewer tags Quaternary faults offshore of California A comprehensive map of Quaternary faults has been generated for offshore of California. The Quaternary fault map includes mapped geometries and attribute information for offshore fault systems located in California State and Federal waters. The polyline shapefile and matching KML file have been compiled from previously published mapping where relatively dense, high-resolution marine geophysical data exist. The data are accompanied by a PDF containing citations for the compiled source data. Most of the marine geophysical data used for mapping have been processed, merged, and released by the USGS in maps, data releases, and journal publications in support of the California Seafloor Mapping Program and the U.S. West... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Geophysics, Marine Geology, All tags... PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, earthquake prediction, earthquakes, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, seismic methods, Fewer tags Data and calculations to support the study of the sea-air flux of methane and carbon dioxide on the West Spitsbergen margin in June 2014 A critical question for assessing global greenhouse gas budgets is how much of the methane that escapes from seafloor cold seep sites to the overlying water column eventually crosses the sea-air interface and reaches the atmosphere. The issue is particularly important in Arctic Ocean waters since rapid warming there increases the likelihood that gas hydrate--an ice-like form of methane and water stable at particular pressure and temperature conditions within marine sediments--will break down and release its methane to the overlying ocean. Some researchers have even proposed the possibility of an Arctic methane catastrophe characterized by wholesale breakdown of gas hydrates in marine sediments and release of the... Categories: Data; Tags: Arctic Ocean, Norway, Prins Karls Forland, Spitsbergen, Svalbard, All tags... carbon cycling, carbon isotope analysis, environment, geoscientificInformation, greenhouse gas flux, marine chemistry, methane seep, ocean temperature, ocean-atmosphere interaction, oceanographic observations, oceans, sea-air gas flux, seep and vent ecosystems, seepage studies, Fewer tags Landslide mass-wasting zones offshore of Southern California, 2023 Landslide mass-wasting zones have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES) and single-beam echosounder data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Landslide debris aprons offshore of southern California, 2023 Landslide debris aprons have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES), single-beam echosounder data, and seismic reflection data. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, State of California, U.S. Geological Survey, USGS, United States of America, earth characteristics, earthquake effects, geologic mapping, geologic processes, geological features, geology, geophysics, geoscientificInformation, geospatial datasets, hazards, hazards and disasters, landslides, marine geology, marine geophysics, natural agents of coastal change, oceanic lithosphere, oceanographic observations, oceans, scientific interpretation, sea-floor characteristics, Fewer tags Oceanographic Current Observations Made Near South Padre Island, Texas, as Part of the South Padre Island Beach Replenishment Study, August 2018–February 2019 Beaches and water recreation are important to the South Padre Island, Texas area and across the United States. The movement of sediment in channels along beaches and the nearshore environment is important for coastal stakeholders and resource managers. Sediment removed by maintenance dredging is often placed back into the littoral system for potential beach replenishment. The movement of sediment from offshore berms to onshore beaches is not well known. Sediment transport is highly dependent on local current conditions and seasonal conditions. The U.S. Geological Survey, in cooperation with the City of South Padre Island, completed an oceanographic field study from August 2018 to February 2019 to investigate the... Categories: Data; Tags: Cameron, Currents, Oceanographic observations, Port Isabel, Pressure, All tags... South Laguna Madre, South Padre Island, Temperature, Waves, climatologyMeteorologyAtmosphere, geoscientificInformation, marine geophysics, navigational data, oceans, Fewer tags Census counts of benthic foraminifera, environmental parameters (temperature, salinity, and oxygen concentration), and radiocarbon measurements from cores obtained under and near a whale-fall off western Vancouver Island, British Columbia, Canada This data release provides census counts of benthic foraminifera (in percent for the total fauna and as raw counts for just the living specimens) as well as environmental parameters (temperature, salinity, and oxygen concentration) at the sampling sites, and radiocarbon measurements from selected push core samples obtained under and near a whale-fall off western Vancouver Island, British Columbia, Canada. Categories: Data; Tags: Aquatic Biology, British Columbia, CMHRP, Canada, Coastal and Marine Hazards and Resources Program, All tags... Habitat, Invertebrates, Marine Geology, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, U.S. Geological Survey, USGS, Vancouver Island, animals, benthic foraminifera, biota, carbon-14 analysis, chemical analysis, environment, geochemistry, geologic dating, invertebrates, marine chemistry, microscopy, oceanographic observations, organisms, protists, radiometric dating, society, Fewer tags Station and data summary for data 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, CTD measurement, Coastal and Marine Hazards and Resources Program, Massachusetts, All tags... Massachusetts Bay, 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, field activity logs, field monitoring stations, location, marine geology, marine geology, navigation, oceanographic observations, oceans, sampling, stations, video observation, videos, Fewer tags