AndreaBozzo/ceres-open-data-index huggingface dataset:
Comma-delimited Text File of the Descriptive Logs of Cores Collected August, 2006 in the Nauset Marsh Area of Cape Cod, Massachusetts

In order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean, geophysical surveys, geophysical probing, submarine groundwater sampling, and sediment coring were conducted by U.S. Geological Survey (USGS) scientists at Cape Cod National Seashore (CCNS) from 2004 through 2006. Coastal resource managers at CCNS and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. The research carried out as part of the study described here was designed, in part, to help refine assumptions required by earlier versions of models about the nature of submarine groundwater flow and discharge at CCNS. This study was conducted in four phases, with a variety of field techniques and equipment employed in each phase. Phase 1 consisted of continuous resistivity profiling (CRP) surveys of the entire study area conducted in 2004. Phase 2 consisted of CRP ground-truthing via resistivity probe measurements and submarine groundwater sampling from hydraulically-drive piezometers using a barge in the Salt Pond/Nauset Marsh area in 2005. Phase 3 consisted of supplemental detailed CRP surveys in the Salt Pond/Nauset Marsh area in 2006. Finally, Phase 4 consisted of sediment coring and porewater extraction in the Salt Pond/Nauset Marsh area later in 2006 to supplement the 2005 sampling.

Tags: atlantic-ocean, cape-cod, cape-cod-national-seashore, cmgp, coastal-and-marine-geology-program, core, core-description, drilling-and-coring, environment, field-activity-logs, geology, geoscientificinformation, ground-water, inlandwaters, log-book, massachusetts, nauset-marsh, north-america, oceans, of-2006-1169, open-file-report, salt-pond, sediment, spreadsheet, u-s-geological-survey, united-states, usgs, usgs-a44a029d-13c2-4fbb-b5cf-fa671249dcf2, vibracore, whsc-field-activity-serial-number-06027, woods-hole-science-center
Organization: Department of the Interior
Backscatter [5m]--Offshore Monterey, California

This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Monterey map area, California. Backscatter data are provided as separate grids depending on resolution. This metadata file refers to the data included in "Backscatter_5m_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report 2016–1110, pamphlet 44 p., 10 sheets, scale 1:24,000, http://dx.doi.org/10.3133/ofr20161110. 
The acoustic-backscatter map of the Offshore of Monterey map area in central California was generated from backscatter data collected by California State University, Monterey Bay (CSUMB) and by Monterey Bay Aquarium Research Institute (MBARI). Mapping was completed between 1998 and 2012 using a combination of multibeam echosounders including 200-kHz/400-kHz Reson 7125, 100-kHz Reson 7111, 240 kHz Reson 8101, and 30-kHz Simrad EM-300 as well as 234-kHz and 468-kHz SWATHplus bathymetric sidescan-sonar system. Within the final imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic pulse and the seafloor, as well as characteristics within the shallow subsurface, providing a general indication of seafloor texture and composition. Backscatter intensity depends on the acoustic source level; the frequency used to image the seafloor; the grazing angle; the composition and character of the seafloor, including grain size, water content, bulk density, and seafloor roughness; and some biological cover. Harder and rougher bottom types such as rocky outcrops or coarse sediment typically return stronger intensities (high backscatter, lighter tones), whereas softer bottom types such as fine sediment return weaker intensities (low backscatter, darker tones).

Tags: backscatter, bathymetry, cmhrp, coastal-and-marine-hazards-and-resources-program, continental-island-shelf, distributions, ecosystem, environment, fisheries, geology, geoscientificinformation, image-mosaics, imagerybasemapsearthcover, intensity, marina, marine-geophysics, marine-nearshore-subtidal, marine-offshore-subtidal, monterey, monterey-county, multibeam, northern-california-ecoregion, ocean-floor-topography, oceans, pacific-coastal-and-marine-science-center, pacific-ocean, pcmsc, physical-habitats-and-geomorphology, rock-substrate, sea-floor-acoustic-reflectivity, sea-floor-characteristics, seabed, seafloor-character, seafloor-topography, seaside, sidescan-sonar, state-of-california, transform-continental-margin, u-s-geological-survey, unconsolidated-mineral-substrate, usgs, usgs-a43df4fc-7f52-4007-a276-ca428e788d4f
Organization: Department of the Interior
EAARL Coastal Topography-Louisiana, Mississippi and Alabama, March 2006: Last Return

ASCII XYZ point cloud data were produced from remotely sensed, geographically referenced elevation measurements by the U.S. Geological Survey (USGS). Elevation measurements were collected over the area using the National Aeronautics and Space Administration (NASA) Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation, vegetation canopy, and coastal topography. The system uses high-frequency laser beams directed at the Earth's surface through an opening in the bottom of the aircraft's fuselage. The laser system records the time difference between emission of the laser beam and the reception of the reflected laser signal in the aircraft. The plane travels over the target area at approximately 50 meters per second at an elevation of approximately 300 meters, resulting in a laser swath of approximately 240 meters with an average point spacing of 2-3 meters. The EAARL, developed originally by NASA at Wallops Flight Facility in Virginia, measures ground elevation with a vertical resolution of 3 centimeters. A sampling rate of 3 kilohertz or higher results in an extremely dense spatial elevation dataset. Over 100 kilometers of coastline can be surveyed easily within a 3- to 4-hour mission. When resultant elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding land development.

Tags: airborne-lidar-processing-system, alabama, alps, altimetry, ascii-xyz-last-return, bathymetry-and-elevation, chandeleur-islands, dauphin-island, digital-elevation-models, distributions, doi-usgs-cmg-gt-coastal-and-marine-geology-u-s-geological-survey-u-s-department-of-interior, eaarl, elevation, experimental-advanced-airborne-research-lidar, gulf-of-mexico, horn-island, land-surface-gt-topography-gt-terrain-elevation, laser-altimetry, lidar, lidar-gt-light-detection-and-ranging, louisiana, mississippi, ocean-gt-coastal-processes-gt-barrier-islands, ocean-gt-coastal-processes-gt-beaches, ocean-gt-coastal-processes-gt-shoreline-displacement, orange-beach, petit-bois-island, remote-sensing, topographic-mapping, topography, usgs-a408039a-3271-45ff-96f6-1bb746e8fa39, usgs-national-assessment-of-coastal-change-hazards-project
Organization: Department of the Interior
Airborne geophysical survey: Frederick-Washington North, Virginia

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, f51107-loudoun, field-monitoring-stations, frederick-washington, geophysical-surveys, geophysics, geospatial-datasets, magnetic, magnetic-field-earth, magnetic-surveys, residual-magnetic-field, total-field, united-states, usgs-a3f75fa0-665d-4f3d-9041-6bff52c31136, va, virginia
Organization: Department of the Interior
Archive of Digital Chirp Subbottom Profile Data Collected During USGS Cruise 13CCT04 Offshore of Petit Bois Island, Mississippi, August 2013

In August of 2013, the U.S. Geological Survey conducted a geophysical survey offshore of Petit Bois Island, Mississippi to investigate the geologic controls on barrier island framework and long-term sediment transport. This report serves as an archive of unprocessed digital chirp subbottom data, trackline maps, navigation files, GIS information, and formal FGDC metadata. Gained digital images of the seismic profiles are provided. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG Y revision 0 format (Barry and others, 1975) and may be downloaded and processed with commercial or public domain software such as Seismic Unix (SU). Example SU processing scripts and USGS software for viewing the SEG Y files (Zihlman, 1992) are also provided.
These data are available for viewing using GeoMapApp (&lt;http://www.geomapapp.org/&gt;) and Virtual Ocean (&lt;http://www.virtualocean.org/&gt;) multi-platform open source software. In addition, the SEG Y files can also be downloaded from the USGS Coastal and Marine Geoscience Data System (&lt;http://cmgds.marine.usgs.gov&gt;).

Tags: 13cct04, chirp, coastal-change-and-transport, coastal-information, distributions, geology, geoscientificinformation, gulf-of-mexico, marine, marine-geophysics, mississippi, oceans, petit-bois-island, seg-y, seismic-reflection, seismic-reflection-methods, society-of-exploration-geophysicists, sub-bottom-profiling, subbottom-profile, substrate, united-states-of-america, usgs-a3f2344f-3602-4209-9a6c-59ed57653913
Organization: Department of the Interior
j299sf.m77t and j299sf.h77t: MGD77T data and header files for single-beam bathymetry data for field activity J-2-99-SF in Grizzly Bay, San Francisco Bay from 02/24/1999 to 03/08/1999

Single-beam bathymetry data along with DGPS navigation data was collected as part of the U.S. Geological Survey cruise J-2-99-SF. The cruise was conducted in Grizzly Bay and San Francisco Bay, California from February 24 to March 8, 1999. The chief scientist was John Chin from the USGS Coastal and Marine Geology office in Menlo Park, CA.
The purpose of this cruise was to survey Grizzly Bay and adjacent areas for seasonal changes in bottom morphology and sediment texture. The geophysical source was a 200 kilohertz (kHz) system.
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/j/j299sf/html/j-2-99-sf.meta.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, city-of-san-francisco, distributions, geoscientificinformation, grizzly-bay, marine-geology, marine-geophysics, marine-seismic, north-pacific-ocean, northern-california, oceans, san-francisco-bay, seafloor-topography, single-beam-bathymetry, single-beam-echo-sounder, state-of-california, usgs-a3e42672-e133-47bd-80ed-8cdf14d45dc4, water-depth
Organization: Department of the Interior
LANDFIRE Remap Fuel Vegetation Cover (FVC) Palau

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, palau, raster-digital-data, remote-sensing, u-s-forest-service-usfs, u-s-geological-survey-usgs, united-states, us, usgs-a3bf904f-86fd-445d-91c7-19a29c53b3b5
Organization: Department of the Interior
Airborne geophysical survey: Harrison, Missouri and Arkansas

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, ar, arkansas, f05005-baxter, f05049-fulton, f05065-izard, f05089-marion, f05129-searcy, f05137-stone, f29067-douglas, f29091-howell, f29153-ozark, field-monitoring-stations, geophysical-surveys, geophysics, geospatial-datasets, harrison, magnetic, magnetic-field-earth, magnetic-surveys, missouri, mo, residual-magnetic-field, total-field, united-states, usgs-a5385978-0b49-4f2f-9765-ac9ec9b92b9f
Organization: Department of the Interior
National Land Cover Database 2001 (NLCD01) Tile 1, Northwest United States: NLCD01_1

This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. 
The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information 
System see https://www.sciencebase.gov/catalog/file/get/631405cad34e36012efa3295?name=nlcd01-partitions.jpg. The National Land Cover Data Set for 2001 was 
produced through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. 
The MRLC Consortium is a partnership of Federal agencies (http://www.mrlc.gov), consisting of the U.S. Geological 
Survey (USGS), the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection 
Agency (USEPA), the U.S. Department of Agriculture (USDA), the U.S. Forest Service (USFS), the National Park 
Service (NPS), the U.S. Fish and Wildlife Service (USFWS), the Bureau of Land Management (BLM), and the USDA 
Natural Resources Conservation Service (NRCS). One of the primary goals of the project is to generate a current, 
consistent, seamless, and accurate National Land Cover Database (NLCD) circa 2001 for the United States at medium 
spatial resolution. For a detailed definition and discussion on MRLC and the NLCD 2001 products, refer to Homer and 
others (2004), (see: http://www.mrlc.gov/mrlc2k.asp).
		
The NLCD 2001 was created by partitioning the United States into mapping zones. A total of 68 mapping zones (see https://www.sciencebase.gov/catalog/file/get/631405cad34e36012efa3295?name=browsenlcd01-mappingzones.jpg), were delineated within the conterminous United States 
based on ecoregion and geographical characteristics, edge-matching features, and the size requirement of Landsat 
mosaics. Mapping zones encompass the whole or parts of several states. Questions about the NLCD mapping zones 
can be directed to the NLCD 2001 Land Cover Mapping Team at the USGS/EROS, Sioux Falls, SD (605) 594-6151 or 
mrlc@usgs.gov.

Tags: environment, geoscientificinformation, inland-waters, inlandwaters, land-cover, land-use, national-land-cover-data-set, national-water-quality-assessment, nawqa, nlcd, usgs-a3b61c48-8207-4e2e-8249-907d42db38c5
Organization: Department of the Interior
Laboratory Observations of Variable Size and Shape Particles-Artificial Sand and Oil Agglomerates: June 2017 Velocity Data

Following marine oil spills, weathered oil can mix with sediment in the surf zone and settle to the seafloor to form mats up to hundreds of meters long. Wave action fragments these mats into 1- to 10-centimeter (cm) diameter sand and oil agglomerates (SOAs). SOAs can persist for years, becoming buried in or exhumed from the seafloor and/or transported cross-shore and alongshore (Dalyander and others., 2015). These fragments are angular near the source mat and become increasingly rounded as they are transported. To quantify SOA motion, the U.S. Geological Survey (USGS) conducted experiments in November 2016 (field activity number (FAN) 2016-364-DD) and June 2017 (FAN 2017-329-FA) using various size, shape, and density artificial sand and oil agglomerates (aSOAs). Video and velocity data were collected under a range of hydrodynamic forcing scenarios in the Small-Oscillatory Flow Tunnel at the U.S. Naval Research Laboratory (NRL) located in Stennis, Mississippi. Between November 14 and 18, 2016, laboratory studies were conducted on spherical- and patty-shaped particles on a roughened flatbed. Two types of particles were used, one consisting of paraffin wax and sand, while the other was machine fabricated out of aluminum and coated in sand. Between June 5 and 8, 2017, laboratory studies were conducted on spherical, patty, ellipsoidal, and angular-ellipsoidal particles using paraffin wax and sand, aluminum, and three-dimensional (3D) printed plastic particles.

Tags: artificial-sand-and-oil-agglomerate, asoa, beach-re-oiling, canon-7d-dslr-camera, cmgp, cmhrp, coastal-and-marine-geology-program, coastal-and-marine-hazards-and-resources-program, elevation, hazards, image-collections, incipient-motion, industrial-pollution, john-c-stennis-space-center, jpeg, laboratory-experiments, marine-geology, mississippi, naval-research-laboratory, nrl, ocean-sciences, oceans, oil-spill, petroleum, photographs, photography, photos, saint-petersburg-coastal-and-marine-science-center, sand-and-oil-agglomerate, small-oscillatory-flow-tunnel, soa, spcmsc, u-s-geological-survey, usgs, usgs-a3a9b0b0-7a1e-4b1b-8bf3-709e494856e6, vectrino-acoustic-velocity-profiler
Organization: Department of the Interior
Underwater temperature data collected from off-shore coral reefs of the Florida Keys, U.S.A. (Version 3)

The U.S. Geological Survey (USGS) Coral Reef Ecosystems Studies (CREST) project (https://coastal.er.usgs.gov/crest/) provides science that helps resource managers tasked with the stewardship of coral reef resources. Coral reef organisms are very sensitive to high and low water-temperature extremes. It is critical to precisely know water temperatures experienced by corals and associated plants and animals that live in the dynamic nearshore environment to document thresholds in temperature tolerance. This dataset provides underwater temperature data recorded every fifteen minutes from 2009 to 2017 at five off-shore coral reefs in the Florida Keys, USA. From northeast to southwest, these sites are Fowey Rocks (Biscayne National Park), Molasses Reef (Florida Keys National Marine Sanctuary, FKNMS), Crocker Reef (FKNMS), Sombrero Reef (FKNMS), and Pulaski Shoal (Dry Tortugas National Park). A portion of the dataset included here was interpreted in conjunction with coral and algal calcification rates in Kuffner and others (2013).

Tags: aquatic-biology, biscayne-national-park, coelenterates, coral-bleaching, coral-reef, crocker-reef, dry-tortugas-national-park, environment, florida, florida-keys, florida-keys-national-marine-sanctuary, fowey-rocks, geoscientificinformation, in-situ-temperature, marine-geology, molasses-reef, monroe-county, oceans, pulaski-shoal, reef-ecosystems, sea-surface-temperature, sombrero-reef, sst, underwater-temperature, united-states, usgs-a3a83158-20ae-4bef-bf4c-7f09810774ac
Organization: Department of the Interior
Modeled Top of the Saddle Mountains Basalt Geomodel Unit (smtop_f)

The smtop_f grid represents the modeled elevation of the top of the Saddle Mountains Basalt 
geomodlel unit at a 500 foot resolution. It is one grid of a geomodel that consists of eleven grids 
and a spatial extent polygon shapefile.  As part of a U.S. Geological Survey Groundwater 
Resources Program study, a three-dimensional geomodel was constructed for approximately 
53,000 mi2 of the Columbia Plateau in Washington, Oregon, and Idaho. This geomodel was 
constructed to define the general aquifer system geometry for use in a regional numerical 
groundwater flow model. Simplifications and assumptions consistent with this ultimate goal 
and the uncertainty in the available data were made. The geomodel units consist of Miocene 
age Columbia River Basalt Group strata and younger alluvial overburden covering approximately 
44,000 mi2. Data were compiled from numerous databases and detailed studies completed 
during the past three decades. These data include stratigraphic interpretations made on more 
than 13,000 wells and a contiguous compilation of surficial geology and structural features 
spanning the study area. These data were simplified and used to construct piecewise-smooth 
trend surfaces that represent upper and lower subsurface geomodel unit boundaries in this 
complex folded and faulted terrain.  The smoothness of the surfaces implicitly represents 
uncertainty in prediction of each surface resulting from data gaps, errors in borehole interpretations, 
errors in mapped contact locations, and uncertainty in the shape of the paleo-surface upon which 
flood basalts were emplaced. Using a rule-based algorithm, surfaces were then recombined to 
construct a fully three-dimensional model with a 500-foot grid resolution that is consistent with 
the data and for which error estimates may be made. The modeling process yielded improved 
estimates of unit volumes, refinement of location of large structural features, and identification 
of features that may be important for ongoing groundwater studies.

Tags: columbia-plateau, columbia-plateau-regional-aquifer-system, columbia-river-basalt, columbia-river-basin, cpras, geomodel, idaho, inlandwaters, oregon, pacific-northwest, saddle-mountains-basalt, usgs-a3a55e70-df03-4006-985e-3a146a1dc141, washington
Organization: Department of the Interior