AndreaBozzo/ceres-open-data-index huggingface dataset:
l681np.m77t - MGD77 data file for Geophysical data from field activity L-6-81-NP in Off British Columbia and Washington, Northern Pacific from 05/31/1981 to 06/07/1981

Single-beam bathymetry, gravity, and magnetic data along with DGPS navigation data was collected as part of field activity L-6-81-NP in Off British Columbia and Washington, Northern Pacific from 05/31/1981 to 06/07/1981, http://walrus.wr.usgs.gov/infobank/l/l681np/html/l-6-81-np.meta.html
These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/l/l681np/html/l-6-81-np.bath.html,
http://walrus.wr.usgs.gov/infobank/l/l681np/html/l-6-81-np.grav.html, and http://walrus.wr.usgs.gov/infobank/l/l681np/html/l-6-81-np.mag.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.

Tags: bathymetry, bathymetry-and-elevation, bathymetry-measurement, distributions, geoscientificinformation, gravimeter-measurement, gravimetry, magnetic-anomalies, magnetic-field-observations, magnetometer-measurement, marine-geology, marine-geophysics, marine-gravity-field, marine-magnetic-field, north-pacific-ocean, northern-pacific-ocean, oceans, off-british-columbia-and-washington-northern-pacific, seafloor-topography, single-beam-echo-sounder, usgs-e8dec4a3-e411-417b-9350-4257838ff70a, water-depth
Organization: Department of the Interior
LANDFIRE Remap Fuel Vegetation Cover (FVC) Puerto Rico US Virgin Islands

The LANDFIRE (LF) 2016 Remap (Remap) Fuel Vegetation Cover (FVC) represents a modified pre-disturbance version of the Existing Vegetation Cover (EVC) product from previous LF versions. LF Remap EVC is mapped as continuous estimates of canopy cover for tree, shrub, and herbaceous lifeforms with a potential range from 10% to 100%. To translate continuous EVC values into fuel model assignments, EVC values are binned to correspond with the bins from previous LF versions. FVC leverages fuel transition assignments related to disturbed areas by re-establishing  pre-disturbance vegetation and is developed using the full suite of LF vegetation releases, plus the most recent 10 years of disturbance data. FVC is a capable fuels product that calculates Time Since Disturbance (TSD) assignments for disturbed areas using an "effective year." For example, year 2020 fuels may be calculated for the year 2020. the new process considers all the existing disturbances included in LF Remap and adjusts the TSD for these to the effective year (2020 in the example), making the products "2020 capable fuels." More information about capable fuels can be found at https://www.landfire.gov/lf_remap.php.

Tags: biota, evc, existing-vegetation-cover, fires, fuel-vegetation-cover, fvc, geographic-information-systems, geospatial-datasets, hazard-preparedness, ia, image-collections, imagerybasemapsearthcover, insular-areas, landfire-2016-remap, lf-2016-remap, oconus, puerto-rico, raster-digital-data, remote-sensing, u-s-forest-service-usfs, u-s-geological-survey-usgs, united-states, us, us-virgin-islands, usgs-e909eea9-75a2-44ff-9631-0373eab9f53c
Organization: Department of the Interior
Bathymetric Contours for Prairie Rose Lake, Shelby County, Iowa

This data set consists of digital bathymetry contours for Prairie Rose Lake in Shelby Co., Iowa. 
The U.S. Geological Survey conducted a bathymetric survey of Prairie Rose Lake in 2004.

Tags: bathymetry, contours, environment, geoscientificinformation, hydrology, inlandwaters, iowa, lakes, prairie-rose-lake, shelby-county, usgs, usgs-eee6aa3b-41f0-4898-85e8-6b88267d1bc7
Organization: Department of the Interior
Discharge measurements from transects of Whales Tail Marsh tidal creeks, South San Francisco Bay, California, during 2021 and 2022

Whales Tail Marsh, a restored salt pond in South San Francisco Bay, California, is experiencing rapid shoreline erosion. Determining whether the eroded sediment is exported to the ocean or imported via tidal channels and deposited on the marsh platform is critical to understanding the long-term response of the marsh to wave attack and sea-level rise. Quantifying water-column sediment flux helps to characterize the role of tidal channels in this process, and water discharge is a key component of sediment flux.
To that end, discharge was measured repeatedly over diurnal tidal cycles in the tidal channels of the Whales Tail Marsh, within Eden Landing Ecological Refuge, California in the summer of 2021 and during king tides in the winter of 2021-2022. These transect data were collected by using a downward-looking Teledyne RDI RiverPro 1200-kilohertz acoustic doppler current profiler (ADCP) from a moving boat.

Tags: acoustic-doppler-current-profiling, alameda-county, cargill-marsh, cmhrp, coastal-and-marine-hazards-and-resources-program, currents, eden-landing-ecological-reserve, geoscientificinformation, inlandwaters, oceans, pacific-coastal-and-marine-science-center, pcmsc, physical-oceanography, san-francisco-bay, sediment-transport, state-of-california, stream-discharge, streamflow, tidal-height, u-s-geological-survey, usgs, usgs-eed282e6-a189-4e5f-896a-cf2de536cdb9, water-column-features, water-depth, water-pressure, whales-tail-marsh, whales-tail-south-marsh
Organization: Department of the Interior
Radium and Radon Radioisotope Activity Data from Samples Collected Between May 2019 and September 2020 Along the West Florida Shelf (Amberjack and Green Banana Blue Holes)

Relict karstic features or sinkholes, often referred to as blue holes, are common features along continental shelves that are underlain by carbonate rich sediments and/or rocks. Several of these features occur along the west-Florida shelf within the Gulf of Mexico, including the two mentioned in Vargas and others (2022): Amberjack Hole and Green Banana Sink (hereafter referred to as Green Banana). Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center (USGS-SPCMSC) participated in sampling efforts lead by the National Oceanic and Atmospheric Administration (NOAA)-funded collaborative team from Mote Marine Laboratory, University of Georgia, and Florida Atlantic University. Amberjack Hole is located approximately 50 kilometers (km) west of Sarasota, Florida; it is a dome-shaped feature that extends 40 m below the seafloor (approximately 70 m total water depth). Green Banana is located approximately 80 km west of Sarasota; it is a U-shaped feature that extends 80 m or more below the seafloor (approximately 125 m total water depth). Naturally occurring radioisotopes of Radon and Radium were analyzed by utilizing samples collected from Amberjack Hole during cruises in May and September 2019, and Green Banana in September 2020. Total Radon-222 was measured using bulk water samples, while Radium-223, Radium-224, and supported Radon-222 (Radium-226) were measured from residue retained on manganese (di)oxide impregnated fibers (referred to as Mn-fibers from hereon) following exposure to seawater. Radium-223 and Radium-224 activity determined from the Mn-fibers were measured on a set of Radium Delayed Coincidence Counters (RaDeCC) as outlined in Moore and Arnold (1996). Total Radon-222 in water and supported Radon-222 (Radium-226 on Mn-fibers) were measured on radon-in-air detectors (RAD7, Durridge, Inc). Data included in Vargas and others (2022) correspond to USGS Field Activity Numbers (FAN) 2019-328-FA (19WFS01), 2019-357-FA (19WFS03), and 2020-317-FA (20WFS01); samples were acquired in May 2019, September 2019, and September 2020 respectively. Please read the full metadata record for details on data collection, dataset variables, and data quality.

Tags: amberjack-hole, environment, florida, geochemistry, geoscientificinformation, green-banana-hole, gulf-of-mexico, hydrology, location, may-2019, ocean, ocean-characteristics, ocean-processes, radium, radium-223, radium-224, radium-226, radon, radon-222, salinity, september-2019, september-2020, spcmsc, submarine-groundwater-discharge, tracer-study, u-s-geological-survey, usgs, usgs-eec04c19-fedb-407e-9d90-02bef1a819d4, water-sampling, water-temperature, west-florida-shelf
Organization: Department of the Interior
Photographs used to verify ET units classified in the major discharge areas of Death Valley regional

The digital data set provides point locations and general
descriptions of areas photographed to document sites visited
during a study to refine current estimates of ground-water
discharge from the major discharge areas of the Death Valley
regional flow system. Photographs were taken 1994-99. Sites
were used as controls to better improve the delineation
of ET (evapotranspiration) units classified using spectral
methods throughout each of the major discharge areas.

Tags: ash-meadows, california-valley, chicago-valley, china-ranch, death-valley, eastern-california, environment, et-unit, evapotranspiration, franklin-lake, franklin-well-area, geoscientificinformation, inlandwaters, modified-soil-adjusted-vegetation-index, msavi, oasis-valley, resting-spring, sarcobatus-flat, shoshone, soil, southern-nevada, stewart-valley, tecopa, usgs-eebcdc7d-c6d7-42ae-8289-518463fc6c0f, vegetation
Organization: Department of the Interior
Airborne geophysical survey: North End, Arizona

Aeromagnetic data were collected along flight lines by instruments in an
aircraft that recorded magnetic-field values and locations.  This dataset
presents latitude, longitude, altitude, and magnetic-field values.

Tags: aeromagnetic-data, aeromagnetic-surveying, airborne-surveys, arizona, az, f04003-cochise, field-monitoring-stations, geophysical-surveys, geophysics, geospatial-datasets, magnetic, magnetic-field-earth, magnetic-surveys, north-end, residual-magnetic-field, total-field, united-states, usgs-e91a5bb0-a166-4ed2-8529-13e8615f5880
Organization: Department of the Interior
CTD (conductivity-temperature-depth) data collected on Stellwagen Bank during U.S. Geological Survey field activity 2014-055-FA, aboard the R/V Auk, September 23 and 24, 2014

This field activity is 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. This cruise 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 51 locations on Stellwagen Bank at which a customized Van Veen grab sampler (SEABOSS) equipped with a video camera and a CTD was deployed in drift mode to collect sediment for grain-size analysis, video imagery of the seabed, and measurements of water column properties.

Tags: atlantic-ocean, chemical-oceanography, cmhrp, coastal-and-marine-hazards-and-resources-program, conductivity, ctd, ctd-measurement, depth, environmental-chemistry, fluorescence, geoscientificinformation, marine-chemistry, massachusetts, massachusetts-bay, national-oceanic-and-atmospheric-administration, noaa, north-america, ocean-salinity, ocean-sciences, ocean-temperature, oceanographic-observations, oceans, salinity, sbnms, seabed-observation-and-sampling-system, seaboss, stellwagen-bank, stellwagen-bank-national-marine-sanctuary, temperature, turbidity, u-s-geological-survey, united-states, usgs, usgs-e9261c93-83d4-43c9-afe9-78b2bd6bfea1, water-density, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
Grayscale GeoTIFF Image of the Bathymetry of National Oceanic and Atmospheric Administration (NOAA) Survey H11321 in Central Rhode Island Sound (H11321_UTM.TIF, UTM Zone 19)

The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Administration (NOAA) to interpret the surficial geology in estuaries along the coast of the northeastern United States. The purpose of our present study is to define the sea floor morphology and sedimentary environments in an area of central Rhode Island Sound using sidescan-sonar imagery, bathymetry data, and seismic records. The mosaic, bathymetry, and their interpretations serve many purposes, including: (1) defining the geological variability of the sea floor, which is one of the primary controls of benthic habitat diversity; (2) improving our understanding of the processes that control the distribution and transport of bottom sediments and the distribution of benthic habitats and associated infaunal community structures; and (3) providing a detailed framework for future research, monitoring, and management activities. The sidescan-sonar mosaics and bathymetry images also serve as base maps for subsequent sedimentological, geochemical, and biological observations, because precise information on environmental setting is important for selection of sampling sites and for accurate interpretations of point measurements.

Tags: atlantic-ocean, bathymetry, cmgp, coastal-and-marine-geology-program, computational-methods, depth, elevation, geoscientificinformation, geospatial-datasets, geotiff-image, imagerybasemapsearthcover, marine-geophysics, multibeam-sonar, national-oceanic-and-atmospheric-administration, noaa, noaa-ship-rude, north-america, north-atlantic-ocean, northeast-united-states, oceans, ofr-2007-1366, open-file-report-2007-1366, rhode-island, rhode-island-sound, sea-floor-characteristics, survey-h11321, u-s-east-coast, u-s-geological-survey, united-states, usgs, usgs-eeaa6026-613d-496b-a84a-3123669cc4b0, utm, whsc, woods-hole-science-center
Organization: Department of the Interior
Precision Airborne Camera (PAC) System - Field data from periodic and event-response surveys of the U.S. Atlantic and Gulf Coasts

The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths with optimized endlap/sidelap and precise position information to create high-resolution orthomosaics, three-dimensional (3D) point clouds, and digital elevation/surface models (DEMs/DSMs) using Structure-from-Motion (SfM) photogrammetry methods. These products are valuable for measuring topographic and landscape change, and for understanding coastal vulnerability and response to disturbance events.
This is an ongoing collection of nadir (vertical) aerial imagery surveys of coastal environments. Low-altitude digital aerial imagery is acquired with a manned, fixed-wing aircraft using the "Precision Airborne Camera (PAC)" system. The system is operated by C.W. Wright and consists of a mounted digital camera fitted with a prime lens, along with a custom integrated survey-grade Global Navigation Satellite System (GNSS) receiver.

Tags: aerial-and-satellite-photography, aerial-photography, agents-of-coastal-change, anthropogenic-agents-of-coastal-change, bathymetry-and-elevation, beach, cmhrp, coastal-and-marine-hazards-and-resources-program, coastal-development, coastal-ecosystems, coastal-erosion, coastal-landslides, coastal-processes, distributions, earth-sciences, ecology, environment, geography, geologic-processes, geology, geomorphology, geoscientificinformation, geospatial-datasets, global-positioning-system-gps-observations, habitat, image-analysis, image-collections, imagerybasemapsearthcover, infrastructure, oceans, pacific-coastal-and-marine-science-center, pcmsc, physical-habitats-and-geomorphology, remote-sensing, sand-resources, slope-processes, spcmsc, st-petersburg-coastal-and-marine-science-center, structure-from-motion, structures, time-series-datasets, u-s-geological-survey, united-states, united-states-and-territories, usgs, usgs-eef973c2-5085-40e9-8aca-b2573342af3b, visible-light-imaging, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
1-meter contours produced from bathymetric data collected by the U.S. Geological Survey offshore of the Chandeleur Islands, LA, 2006-2007 (cont_1m, polyline)

In 2006 and 2007, the U.S. Geological Survey, in partnership with Louisiana Department of Natural Resources and the University of New Orleans, conducted geologic mapping to characterize the sea floor and shallow subsurface stratigraphy offshore of the Chandeleur Islands in Eastern Louisiana. The mapping was carried out during two cruises on the R/V Acadiana. Data were acquired with the following equipment: an SEA Ltd SwathPlus interferometric sonar (234 kHz), Klein 3000 dual frequency sidescan sonar, and an Edgetech 512i chirp subbottom profiling system. The long-term goal of this mapping effort is to produce high-quality geologic maps and geophysical interpretations that can be utilized to investigate the impact of Hurricane Katrina in 2005 and to identify sand resources within the region.

Tags: arcraster-grid, bathymetry, breton-island, chandeleur-islands, cmgp, coastal-and-marine-geology-program, contouring, curlew-island, elevation, geoscientificinformation, geospatial-datasets, gosier-island, gulf-of-mexico, imagerybasemapsearthcover, interferometry, louisiana, mississippi-river-gulf-outlet, mrgo, new-harbor-islands, north-central-gulf-coast, north-islands, oceans, sea-floor-characteristics, sea-floor-morphology, swath-bathymetry, u-s-geological-survey, united-states, usgs, usgs-eea38fe2-d13e-415d-93e9-f8ce78c14ceb, whsc, whsc-field-activity-serial-number-06015, whsc-field-activity-serial-number-07007, woods-hole-science-center
Organization: Department of the Interior
Processed Continuous Resistivity Profiles from Cape Cod National Seashore, May 17, 2004

Continuous resistivity profiling (CRP) surveys were conducted at Cape Cod National Seashore in 2004 and 2006 in order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean. Coastal resource managers here and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to differences in salinity of submarine ground water. The 2004 and 2006 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software.

Tags: atlantic-ocean, cape-cod, cape-cod-national-seashore, cmgp, coastal-and-marine-geology-program, continuous-resistivity-profiling, crp, geoscientificinformation, ground-water, image-collections, inlandwaters, location, massachusetts, nauset-marsh, north-america, oceans, of-2006-1169, open-file-report, salt-pond, submarine-ground-water, u-s-geological-survey, united-states, usgs, usgs-ee81f753-9558-4a48-a00d-70f2709a5a35, whsc-field-activity-serial-number-04014, woods-hole-science-center
Organization: Department of the Interior
Projected Seafloor Elevation Along the Florida Reef Tract From Big Pine Key to Marquesas Key, Florida-75 Years From 2011 Based on Historical Rates of Mean Elevation Change

The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted research to quantify the combined effect of all constructive and destructive processes on modern coral reef ecosystems by projecting future regional-scale changes in seafloor elevation for several sites along the Florida Reef Tract, Florida (FL) including the shallow seafloor along Key West, FL. USGS staff used historical bathymetric point data from the 1930's (National Oceanic and Atmospheric Administration (NOAA) Office of Coast Survey, see Yates and others, 2017) and light detection and ranging (lidar)-derived data acquired in 2002 (Brock and others, 2006, 2007) to calculate historical seafloor elevation changes in the Upper Florida Keys (UFK) (Yates and others, 2017). Using those changes in seafloor elevation, annual rates of elevation change were calculated for 13 habitat types found in the UFK reef tract. The annual rate of mean elevation change for each habitat type was applied to a digital elevation model (DEM) extending from Big Pine Key to Marquesas Key, FL that was modified from the NOAA National Centers for Environmental Information (NCEI) Key West coastal DEM (NOAA, 2011) to project future seafloor elevation (from 2011) along the Key West section of the Florida Reef Tract. Grid resolution for the DEM is 1/3 arc second (approximately 10 meters).

Tags: altimetry, big-pine-key, coelenterates, digital-elevation-models, doi-usgs-cmg-gt-coastal-and-marine-geology-u-s-geological-survey-u-s-department-of-interior, elevation, elevation-change, florida, florida-keys, florida-reef-tract, geoscientificinformation, key-west, lidar, lidar-gt-light-detection-and-ranging, marine-geology, marquesas-keys, ocean-gt-bathymetry-seafloor-topography-gt-water-depth, ocean-gt-coastal-processes-gt-coastal-elevation, ocean-gt-coastal-processes-gt-coral-reefs, ocean-gt-coastal-processes-gt-erosion, ocean-gt-coastal-processes-gt-sea-level-rise, oceans, reef-ecosystems, sea-floor-characteristics, sea-level-change, sea-level-rise, seafloor, seafloor-accretion, seafloor-elevation, seafloor-erosion, submerged, submerged-topography, usgs-e929a4a6-0220-414a-aba0-19b292e001a2
Organization: Department of the Interior
Bathymetry Hillshade--Hueneme Canyon and Vicinity, California

This part of DS 781 present the shaded-relief bathymetry map of the Hueneme Canyon and Vicinity map area, California. The raster data file for the shaded-relief map is included in "BathymetryHS_HuenemeCanyon.zip," which is accessible from https://pubs.usgs.gov/ds/781/HuenemeCanyon/data_catalog_HuenemeCanyon.html. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Cochrane, G.R., Golden, N.E., Phillips, E.L., Ritchie, A.C., Kvitek, R.G., Greene, H.G., Krigsman, L.M., Endris, C.A., Clahan, K.B., Sliter, R.W., Wong, F.L., Yoklavich, M.M., and Normark, W.R. (S.Y. Johnson, ed.), 2012, California State Waters Map Series-—Hueneme Canyon and Vicinity, California: U.S. Geological Survey Scientific Investigations Map 3225, 41 p., 12 sheets, scale 1:24,000, https://pubs.usgs.gov/sim/3225/.
The shaded-relief bathymetry map of the Hueneme Canyon and Vicinity map area, California, was generated from bathymetry data collected by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB), by the U.S. Geological Survey (USGS), and by Fugro Pelagos for the U.S. Army Corps of Engineers (USACE) Joint Lidar Bathymetry Technical Center of Expertise. Most of the offshore area was mapped by CSUMB in the summers of 2006 and 2007, using a 244-kHz Reson 8101 multibeam echosounder. The far northern part of the offshore area was mapped by the USGS in 2006, using a 117-kHz SEA (AP) Ltd. SWATHplus-M phase-differencing sidescan sonar. The nearshore bathymetry and coastal topography were mapped for USACE by Fugro Pelagos in 2009, using the SHOALS-1000T bathymetric-lidar and Leica ALS60 topographic-lidar systems. All these mapping missions combined to collect bathymetry from the 0-m isobath to beyond the 3-nautical-mile limit of California's State Waters.

Tags: bathymetry-and-elevation, cmgp, coastal-and-marine-geology-program, continental-island-shelf, geoscientificinformation, geospatial-datasets, hueneme-canyon, image-mosaics, imagerybasemapsearthcover, lidar, maps-and-atlases, marine-geophysics, marine-nearshore-subtidal, marine-offshore-subtidal, multibeam-echo-sounder, oceans, oceans-gt-bathymetry-seafloortopography-gt-seafloor-topography, oxnard, pacific-coastal-and-marine-science-center, pacific-ocean, pcmsc, port-of-hueneme, sea-floor-characteristics, seabed, sidescan-sonar, sonar-methods, southern-california-ecoregion, state-of-california, transform-continental-margin, u-s-geological-survey, usgs, usgs-e92a349f-c946-4613-af36-521476ed0dba, ventura
Organization: Department of the Interior