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Filters Date Range Past year (10) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Citation (4) Downloadable (1) Contacts PCMSC Science Data Coordinator Natural Hazards U.S. Geological Survey, Pacific Coastal and Marine Science Center Curt D Storlazzi Peter Dartnell More... Categories Data (5) Data Release - Revised (1) Software (1) Tag Types Theme (10) Place (7) USGS Scientific Topic Keyword (6) Harvest Set (1) Tag Schemes None (8) USGS Thesaurus (10) Geographic Names Information System (GNIS) (7) ISO 19115 Topic Category (9) Marine Realms Information Bank (MRIB) Keywords (6) Global Change Master Directory (GCMD) (3) NGA GEOnet Names Server (GNS) (3) More... View Results as: JSON ATOM CSV

Multichannel sparker seismic reflection data of USGS field activity 2018-658-FA collected between Cape Blanco and Cape Mendocino from 2018-10-04 to 2018-10-18 Note: This data release has been superseded, available here: https://doi.org/10.5066/P9MYL7WJ This data release contains processed high-resolution multichannel sparker seismic-reflection (MCS) data that were collected aboard Humboldt State University’s R/V Coral Sea in October of 2018 on U.S. Geological Survey cruise 2018-658-FA on the shelf and slope between Cape Blanco, Oregon, and Cape Mendocino, California. MCS data were collected to characterize quaternary deformation and sediment dynamics along the southern Cascadia margin. Tags: Bathymetry and Elevation, Bear Valley, Blanco Fracture Zone, Blanco Saddle, CMHRP, All tags... Cape Blanco, City of Eureka, Coastal and Marine Hazards and Resources Program, Continental Margin, Crescent City, Eel Canyon, Eel River, Geophysics, Gorda Basin, Marine Geology, Mattole Canyon, Mendocino Escarpment, Mendocino Fracture Zone, Mendocino Ridge, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Seismology, State of California, State of Oregon, Stratigraphy, Structural Geology, Trinidad Canyon, U.S. Geological Survey, USGS, geoscientificInformation, geospatial datasets, marine geophysics, oceans, seismic reflection profiling, sparker, sub-bottom profiling, Fewer tags Geochemical analysis of seeps along the Queen Charlotte Fault Geochemical analyses of authigenic carbonates, bivalves, and pore fluids were performed on samples collected from seep fields along the Queen Charlotte Fault, a right lateral transform boundary that separates the Pacific and North American tectonic plates. Samples were collected using grab samplers and piston cores, and were collected during three different research cruises in 2011, 2015, and 2017. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Haida Gwaii, PCMSC, Pacific Coastal and Marine Science Center, All tags... Pacific Ocean, Physical/Chemical Features, Quaternary, Queen Charlotte, U.S. Geological Survey, USGS, chemical analysis, chemosynthesis, geochemistry, geoscientificInformation, grab sampling, light stable isotope analysis, marine chemistry, methanogens, mollusks, paleoceanography, sedimentation, specimen collecting, Fewer tags Multibeam bathymetry and acoustic-backscatter data collected in 2016 in Catalina Basin, southern California and merged multibeam bathymetry datasets of the northern portion of the Southern California Continental Borderland In February 2016 the University of Washington in cooperation with the U.S. Geological Survey, Pacific Coastal and Marine Science Center (USGS, PCMSC) collected multibeam bathymetry and acoustic-backscatter data in and near the Catalina Basin, southern California aboard the University of Washington's Research Vessel Thomas G. Thompson. Data was collected using a Kongsberg EM300 multibeam echosounder hull-mounted to the 274-foot R/V Thomas G. Thompson. The USGS, PCMSC processed these data and produced a series of bathymetric surfaces and acoustic-backscatter images for scientific research purposes. This data release provides a 10-m resolution bathymetry surface and a 10-m resolution acoustic backscatter image. In... Categories: Data; Types: Citation; Tags: Bathymetry, Bathymetry, Bathymetry and Elevation, CMGP, Catalina Basin, All tags... Geology, Geomorphology, Geophysics, Marine Geology, Multibeam sonar, Pacific, Pacific Coastal and Marine Science Center, Seafloor Topography, U.S. Geological Survey, USGS, environment, geoscientificInformation, imageryBaseMapsEarthCover, inlandWaters, sea-floor acoustic reflectivity, Fewer tags Multichannel minisparker seismic-reflection data of field activity 2015-617-FA; Monterey Bay, offshore central California from 2015-02-23 to 2015-03-06 This data release contains approximately 190 line-kilometers of processed, high-resolution multichannel seismic-reflection (MCS) profiles that were collected aboard the R/V Snavely in 2015 on U.S. Geological Survey cruise 2015-617-FA in Monterey Bay, offshore central California. The majority of MCS profiles collected are oriented north-south across the Monterey Canyon head to address marine geohazards and submarine canyon evolution. The MCS profiles were acquired using a 700-Joule minisparker source and a 24-channel digital streamer. Tags: Bathymetry and Elevation, CMGP, Coastal and Marine Geology Program, Monterey Bay, Monterey Canyon, All tags... Monterey Canyon, Monterey Fan, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of California, U.S. Geological Survey, USGS, geoscientificInformation, geospatial datasets, marine geophysics, oceans, seismic reflection profiling, sub-bottom profiling, Fewer tags ViTexOCR; A script to extract text overlays from digital video The ViTexOCR script presents a new method for extracting navigation data from videos with text overlays using optical character recognition (OCR) software. Over the past few decades, it was common for videos recorded during surveys to be overlaid with real-time geographic positioning satellite chyrons including latitude, longitude, date and time, as well as other ancillary data (such as speed, heading, or user input identifying fields). Embedding these data into videos provides them with utility and accuracy, but using the location data for other purposes, such as analysis in a geographic information system, is not possible when only available on the video display. Extracting the text data from imagery using software... Categories: Software; Types: Citation, Downloadable; Tags: CMGP, Coastal and Marine Geology Program, PCMSC, Pacific Coastal and Marine Science Center, Remote Sensing, All tags... U.S. Geological Survey, USGS, computer science, scientific software, software development, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, August 2011 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in August 2011 (USGS Field Activity Number W-06-11-PS). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization)... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Oceanographic measurements obtained offshore of the Elwha River delta in coordination with the Elwha River Restoration Project, Washington, USA, 2010-2014 (version 1.1, May 2018) First Release: Aug 2017 Revised: May 2018 (ver. 1.1) Time-series data of velocity, pressure, turbidity, conductivity, and temperature were collected near the mouth of the Elwha River, Washington, USA, from December 2010 through October 2014, for the Department of Interior’s Elwha River Restoration project. As part of this project, the U.S. Geological Survey studied the effects of renewed sediment supplies on the coastal ecosystems before, during, and following the removal of two dams, Elwha and Glines Canyon, from the Elwha River. Removal of the dams reintroduced sediment stored in the reservoirs to the river, and the river moved much of this sediment to the coast. Several benthic tripods were instrumented with... Categories: Data, Data Release - Revised; Types: Citation; Tags: CMGP, CONDUCTIVITY, CTD, CTD measurement, CURRENT METERS, All tags... Clallum County, Coastal and Marine Geology Program, Elwha River, Geophysics, Marine Geology, OCEAN CURRENTS, Oceans, PCMSC, PRESSURE SENSORS, Pacific Coastal and Marine Science Center, Puget Sound, SALINITY, SEDIMENT TRANSPORT, State of Washington, U.S. Geological Survey, USGS, WATER DEPTH, WATER PRESSURE, WATER TEMPERATURE, WAVE HEIGHT, WAVE HEIGHT GAUGES, geoscientificInformation, ocean waves, physical oceanography, time series datasets, water level measurements, wave observations, Fewer tags Hydrodynamic, sediment transport, and sediment flocculation data from south San Francisco Bay, California, summer 2020 The U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center collected hydrodynamic and suspended sediment flocculation data at channel and shallow water sites in south San Francisco Bay in July 2020. The data were used to determine water column stratification, turbulence profiles, and floc size evolution. The goal of this project was to bound the controls on floc size and floc settling velocity to improve estimates of sediment fluxes and consider error in numerical models of sediment transport in San Francisco Bay. This data release includes hydrodynamic, sediment concentration, and particle size timeseries during July 2020, as well as sediment bed properties, water column particle size distributions,... Tags: Hydrology, Marine Geology RGB-averaged orthoimagery of coastal North Carolina, from 2020-05-08 to 2020-05-09 RGB-averaged orthoimages were created from aerial imagery collected May 08 and 09, 2020, along the North Carolina coast between the Virginia-North Carolina border vicinity and Cape Lookout, North Carolina. These RGB-averaged orthoimages were created to document recovery ground conditions after Hurricane Dorian, which made landfall on the North Carolina coast on September 6, 2019. The RGB-averaged orthoimages help researchers document inter-annual changes in shoreline position and coastal morphology in response to storm events using aerial imagery collections and a structure from motion (SFM) workflow. These data can be used with geographic information systems or other software to identify topographic and shallow-water... Tags: Atlantic Ocean, Bathymetry and Elevation, Beaufort Inlet, CMHRP, Cape Hatteras, All tags... Cape Lookout, Coastal and Marine Hazards and Resources Program, Commonwealth of Virginia, Duck (1025292), Hatteras Inlet, Hurricane Dorian, Ocracoke Inlet, Ophelia Inlet, Oregon Inlet, Outer Banks, PCMSC, Pacific Coastal and Marine Science Center, Pamlico Sound, Physical Habitats and Geomorphology, Remote Sensing Coastal Change, SPCMSC, Saint Petersburg Coastal and Marine Science Center, State of North Carolina, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WHCMSC, Woods Hole Coastal and Marine Science Center, barrier island, beach, coastal processes, digital elevation models, digital surface models, earth sciences, fragile ecosystems, geographic information systems (GIS), geography, geomorphology, geoscientificInformation, geospatial datasets, hurricanes, hurricanes and typhoons, imageryBaseMapsEarthCover, oceans, remote sensing, remote sensing, structure from motion, Fewer tags Water level and velocity measurements from the 2012 University of Western Australia Fringing Reef Experiment (UWAFRE) This data release contains water level and velocity measurements from wave runup experiments performed in a laboratory flume setting. Wave-driven water level variability (and runup at the shoreline) is a significant cause of coastal flooding induced by storms. Wave runup is challenging to predict, particularly along tropical coral reef-fringed coastlines due to the steep bathymetric profiles and large bottom roughness generated by reef organisms. The 2012 University of Western Australia Fringing Reef Experiment (UWAFRE) measured water levels and velocities for sixteen wave and offshore (still) water level conditions on a 1:36 geometric scale fringing reef profile with and without bottom roughness. Experiments were... Tags: CMGP, Coastal and Marine Geology Program, Geophysics, PCMSC, Pacific Coastal and Marine Science Center, All tags... U.S. Geological Survey, USGS, coastal processes, coral reefs, flooding, geoscientificInformation, hazards, laboratory experiments, ocean sciences, oceans, reef, scale modeling, water column features, water level measurements, waves, Fewer tags Projected flood water depths on Roi-Namur, Kwajalein Atoll, Republic of the Marshall Islands Projected future wave-driven flooding depths on Roi-Namur Island on Kwajalein Atoll in the Republic of the Marshall Islands for a range of climate-change scenarios. This study utilized field data to calibrate oceanographic and hydrogeologic models, which were then used with climate-change and sea-level rise projections to explore the effects of sea-level rise and wave-driven flooding on atoll islands and their freshwater resources. The overall objective of this effort, due to the large uncertainty in future emissions (and thus climate change scenarios) that is largely irreducible, was to reduce risk and increase island resiliency by providing model simulations across a range of plausible future conditions. This... Categories: Data; Tags: CMGP, Coastal and Marine Geology Program, Elevation, Kwajalein, Marshall Islands, All tags... PCMSC, Pacific Coastal and Marine Science Center, Roi-Namur, U.S. Geological Survey, USGS, coastal processes, coral reefs, flooding, floods, geoscientificInformation, geospatial datasets, numerical modeling, predictions, reef, waves, Fewer tags