AndreaBozzo/ceres-open-data-index huggingface dataset:
Archive of Digitized Analog Boomer and Minisparker Seismic Reflection Data Collected from the Northern Gulf of Mexico: 1981, 1990 and 1991

The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern Gulf of Mexico for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles up to 25 meters long. As part of the National Geological and Geophysical Data Preservation Program (https://datapreservation.usgs.gov/), and in collaboration with the Bureau of Ocean Energy Management, Marine Minerals Program, scientists at the USGS St. Petersburg Coastal and Marine Science Center were converting the analog paper records to digital format using a large-format continuous scanner. The image files created by scanning were further processed to fix distortions and crop out blank spaces to create industry standard Society of Exploration Geophysicists date exchange (SEG-Y) format.
This data release serves as an archive of HRSP profiles annotated with header information, converted SEG-Y files, navigation data, and cruise trackline shapefiles.  The HRSP data were collected using a minisparker/hydrophone system onboard the research vessel Gyre and a Huntec boomer seismic system onboard research vessels (R/V) Carancahua and Kit Jones. Data collection dates and locations varied between surveys: (1) R/V Carancahua (legs 1 and 2) surveys were conducted July 1–15, 1981, within Chandeleur and Mississippi Sounds, (2) the R/V Gyre 81-6 cruise occurred April 9–23, 1981, in the Gulf of Mexico (south of Mississippi and east of Louisiana), (3) R/V Kit Jones 90 (legs 1 and 2) data were acquired from Mississippi Sound and the Gulf of Mexico (south of Mississippi and Alabama) June 21–27, 1990, and (4) R/V Kit Jones 91-2 HRSP data came from Mississippi Sound (south of Alabama) and the Gulf of Mexico (south of Alabama and Florida) from July 10 to 11 and July 21–27, 1991. Data collection and processing methods are described in USGS Data Series 1047.

Tags: alabama, bim-barrier-island-mapping, chandeleur-sound, coastal-processes, florida, geology, geoscientificinformation, gulf-of-mexico, louisiana, marine, marine-geology, mississippi, mississippi-sound, ocean-processes, oceans, r-v-carancahua, r-v-gyre, r-v-kit-jones, sediment-transport, seg-y, seismic-reflection-methods, society-of-exploration-geophysicists, united-states-of-america, usgs-1eabaa00-06b5-4654-bbd7-f14a3d6c1bdb
Organization: Department of the Interior
Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Normalized Atmospheric Deposition for 2002, Nitrate (NO3)

This tabular data set represents the average normalized (wet) deposition, in kilograms per square kilometer 
multiplied by 100, of Nitrate (NO3) for the year 2002 compiled for every MRB_E2RF1 catchment of the Major
 River Basins (MRBs, Crawford and others, 2006). Estimates of NO3 deposition are based on National 
Atmospheric Deposition Program (NADP) measurements (B. Larsen, U.S. Geological Survey, written. 
commun., 2007). De-trending methods applied to the year 2002 are described in Alexander and others, 
2001. NADP site selection met the following criteria: stations must have records from 1995 to 2002 and 
have a minimum of 30 observations.
		
The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's 
(USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality 
modeling (Nolan and others, 2002; Brakebill and others, 2011).
		
Data were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England 
and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, 
and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf 
(MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and 
California (MRB8).

Tags: cali, california, catchment, cogb, conterminous-united-states, environment, geoscientificinformation, glmr, great-lakes-ohio-upper-mississippi-and-souris-red-rainy, inlandwaters, lmtg, lower-mississippi-arkansas-white-red-and-texas-gulf, major-river-basins, missouri, mori, mrb, mrb1, mrb2, mrb3, mrb4, mrb5, mrb6, mrb7, mrb8, mrb_e2rf1, mrb_e2rf1ws, nawqa, nema, new-england-and-mid-atlantic, nitrate-no3, pacific-northwest, panw, rio-grande-colorado-and-great-basin, sagt, south-atlantic-gulf-and-tennessee, sparrow, usgs-1ec23ae7-f8c6-49b4-9c20-ec6aa1d4ca78
Organization: Department of the Interior
HW3_Q68.TIF - Hawaii III - Northwestern Hawaii U.S. EEZ GLORIA sidescan-sonar data mosaic (16 of 22) (LCC, 50 m, WGS84)

In 1984, the U.S. Geological Survey (USGS), Office of Marine Geology, launched a program using the Geological LOng-Range Inclined Asdic (GLORIA) sidescan-sonar system to study the entire U.S. Exclusive Economic Zone (EEZ). From 1989 through 1991, the USGS and IOS (Institute of Oceanographic Sciences, U.K.) scientists conducted several surveys within the EEZ off Hawaii. Six surveys during that time period focused on the northwestern Hawaii region. The results of these surveys were 22 digital mosaics of approximately of approximately a 2 degree by 2 degree area with a 50-meter pixel resolution.

Tags: acoustic-receivers, acoustic-reflectivity, backscatter, central-pacific-ocean, cmgp, coastal-and-marine-geology-program, distributions, eez, exclusive-economic-zone, exclusive-economic-zone-eez, field-activity-number-f-1-90-hw, field-activity-number-f-10-91-hw, field-activity-number-f-13-89-hw, field-activity-number-f-2-90-hw, field-activity-number-f-5-91-cp, field-activity-number-f-6-91-cp, geological-long-range-inclined-asdic, geoscientificinformation, geotiff-image, gloria, gloria-gt-geological-long-range-inclined-asdic, grey-scale-image, hawaii, hawaii-ecoregion, hawaiian-emperor-chain, hawaiian-islands, hawaiian-ridge, image-mosaics, imagerybasemapsearthcover, kure-island, lisianski-island, marine-basin-floor, marine-geology, marine-geophysics, marine-oceanic, midway-islands, nero-seamount, neva-shoal, ocean-gt-pacific-ocean, ocean-gt-pacific-ocean-gt-central-pacific-ocean, oceans, oceans-gt-ocean-acoustics-gt-acoustic-reflectivity, oceans-gt-pacific-ocean-gt-central-pacific-ocean-gt-hawaiian-islands, pearl-and-hermes-shelf, physical-habitats-and-geomorphology, pioneer-bank, salmon-bank, sea-floor-acoustic-reflectivity, sea-floor-characteristics, seabed, side-scan-sonar, sidescan-sonar, sidescan-sonar-mosaic, u-s-geological-survey, usgs, usgs-1edfd329-96f6-4e02-8df6-2e7f27c594aa, wcmg, western-coastal-and-marine-geology
Organization: Department of the Interior
CENCAL_TRANSECTS_LT - Long-Term Shoreline Change Rates for Central California Generated at a 50 m Transect Spacing, 1853-2002

Rates of long-term and short-term shoreline change were generated in a GIS using the Digital Shoreline Analysis System (DSAS) version 3.0; An ArcGIS extension for calculating shoreline change: U.S. Geological Survey Open-File Report 2005-1304, Thieler, E.R., Himmelstoss, E.A., Zichichi, J.L., and Miller, T.M. The extension is designed to efficiently lead a user through the major steps of shoreline change analysis. This extension to ArcGIS contains three main components that define a baseline, generate orthogonal transects at a user-defined separation along the coast, and calculate rates of change (linear regression, endpoint rate, average of rates, average of endpoints, jackknife).

Tags: baseline, beach-erosion, beach-nourishment, california, cmgp, coastal-and-marine-geology-program, coastal-processes, coastal-survey-map, continental-island-shore-complex, effects-of-coastal-change, endpoint-rate, environment, erosion, esri-polyline-shapefile, geoscientificinformation, historic-shoreline, lidar, linear-regression-rate, northern-california-ecoregion, oceans, shoreline, shoreline-accretion, shoreline-change-rate, shoreline-erosion, t-sheet, tp-sheet, u-s-geological-survey, united-states, usgs, usgs-1ee3dae6-8bb1-44d8-a8f9-f55e2750845e
Organization: Department of the Interior
Digital Sidescan-Sonar Mosaic collected within the Gulf of the Farallones, National Marine Sanctuary (FARALLONES.TIF, UTM 10, WGS84)

In 1989, the U.S. Geological Survey (USGS) began a major geologic and oceanographic investigation of the Gulf of the Farallones continental shelf system, designed to evaluate and monitor human impacts on the marine environment (Karl and others, 2002). The study region is located off the central California coast, adjacent to San Francisco Bay and encompasses the Gulf of the Farallones National Marine Sanctuary. Geologic mapping of this area included the use of various remote sensing and sampling techniques such as sub-bottom profiling, sidescan-sonar and bathymetric mapping, gravity core and grab sampling, and photography. These data were used to define the surficial sediment distribution, underlying structure and sea floor morphology of the study area.
The primary focus of this report is to present a georeferenced, digital sidescan-sonar mosaic of the study region. The sidescan-sonar data were acquired with the AMS-120 (120kHz) sidescan-sonar system during USGS cruise F9-89-NC. The dataset covers approximately 1000 km2 of the continental shelf between Point Reyes, California and Half Moon Bay, California, extending west to the continental shelf break near the Farallon Islands. The sidescan-sonar mosaic displays a heterogenous sea-floor environment, containing outcropping rock, ripples, dunes, lineations and depressions, as well as flat, featureless sea floor (Karl and others, 2002). These data, along with sub-bottom interpretation and ground truth data define the geologic framework of the region. The sidescan-sonar mosaic can be used with supplemental remote sensing and sampling data as a base for future research, helping to define the local current regime and predominant sediment transport directions and forcing conditions within the Gulf of Farallones.

Tags: ams-120, backscatter, bodega-bay, california, cmgp, coastal-and-marine-geology-program, distributions, farallon-islands, farallones, field-activity-identifier-f9-89-nc, field-activity-serial-number-89020, geoscientificinformation, geotiff, grey-scale-image, gulf-of-the-farallones, half-moon-bay, image-mosaics, imagery, imagerybasemapsearthcover, marine-geophysics, north-america, oceans, pacific-ocean, physical-habitats-and-geomorphology, point-reyes, san-francisco, sea-floor-acoustic-reflectivity, sea-floor-characteristics, seabed, seafloor-mapping, sidescan-sonar, sonar, u-s-geological-survey, u-s-pacific-coast, u-s-west-coast, united-states, usgs, usgs-1eebb3c3-8192-4a19-8e29-ad041e8ae210, woods-hole-science-center
Organization: Department of the Interior
Backscatter C [7125]--Drakes Bay and Vicinity, California

This part of DS 781 presents data for the acoustic-backscatter map of Drakes bay and Vicinity map area, California. Backscatter data are provided as separate grids depending on mapping system or processing method. The raster data file is included in "BackscatterC_7125_DrakesBay.zip", which is accessible from https://pubs.usgs.gov/ds/781/DrakesBay/data_catalog_DrakesBay.html.
The acoustic-backscatter map of Drakes Bay and Vicinity map area, California, was generated from backscatter collected by California State University, Monterey Bay (CSUMB), and by Fugro Pelagos. Mapping was completed between 2007 and 2010, using a combination of 200-kHz and 400-kHz Reson 7125, and 244-kHz Reson 8101 multibeam echosounders, as well as 468-kHz SEA SWATHPlus interferometric system. These mapping missions combined to collect backscatter data from about the 10-m isobath to beyond the 3-nautical-mile limit of California's State Waters. Within the acoustic-backscatter 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). These data are not intended for navigational purposes.

Tags: acoustic-reflectivity, continental-island-shelf, distributions, drakes-bay, environment, geoscientificinformation, geospatial-datasets, image-mosaics, imagerybasemapsearthcover, interferometric-sonar, maps-and-atlases, marin-county, marine-geophysics, marine-nearshore-subtidal, marine-offshore-subtidal, multibeam-echo-sounder, northern-california-ecoregion, oceans, pacific-ocean, physical-habitats-and-geomorphology, rock-substrate, sea-floor-acoustic-reflectivity, sea-floor-characteristics, seabed, sonar-methods, state-of-california, transform-continental-margin, unconsolidated-mineral-substrate, usgs-1f9ff03a-6d39-4ec1-a63b-92633d277cb0
Organization: Department of the Interior
Basic (BAS) data file (model grid, active model cells, and hydraulic-head values) for the Central Valley Hydrologic Model (CVHM)

This digital dataset defines the model grid, active model cells in the 10 model layers, and hydraulic-head values 
in the 10 model layers used to initiate the transient hydrologic model of the Central Valley flow system. The 
Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex 
hydrologic system of the Central Valley is simulated using the USGS numerical modeling code 
MODFLOW-FMP (Schmid and others, 2006).  This simulation is referred to here as the Central Valley 
Hydrologic Model (CVHM) (Faunt, 2009). Utilizing MODFLOW-FMP, the CVHM simulates groundwater- and 
surface-water flow, irrigated agriculture, land subsidence, and other key processes in the Central Valley on a 
monthly basis from 1961-2003.  The total active modeled area is 20,334 square-miles on a finite-difference grid 
comprising 441 rows and 98 columns. Slightly less than 50 percent of the cells are active. The CVHM grid has a 
uniform horizontal discretization of 1x1 square mile and is oriented parallel to the valley axis, 34 degrees west of 
north (Faunt, 2009). The starting heads are based on the water table and potentiometric surface developed by 
Williamson and others (1989).  The CVHM is the most recent regional-scale model of the Central Valley 
developed by the U.S. Geological Survey (USGS).  The CVHM was developed as part of the USGS Groundwater 
Resources Program (Faunt, 2009.  See "Foreword", Chapter A, page iii, for details).

Tags: alameda-county, amador-county, butte-county, calaveras-county, california, central-valley, central-valley-aquifer, central-valley-california, central-valley-hydrologic-model, colusa-county, contra-costa-county, cv-rasa, discretization, el-dorado-county, flow-model-cvhm, fresno-county, geoscientificinformation, glenn-county, groundwater, groundwater-availability-of-the-central-valley-aquifer, humboldt-county, hydraulic-head, hydrogeology, hydrology, inlandwaters, kern-county, kings-county, lake-county, madera-county, mariposa-county, mendocino-county, merced-county, model, monterey-county, napa-county, nevada-county, placer-county, sacramento-county, sacramento-valley, san-benito-county, san-joaquin-county, san-joaquin-valley, san-luis-obispo-county, santa-barbara-county, santa-clara-county, shasta-county, solano-county, sonoma-county, stanislaus-county, sutter-county, tehama-county, texture-model, trinity-county, tulare-county, tuolumne-county, usgs-1ef4be49-e748-483d-b49c-508babf19482, ventura-county, yolo-county, yuba-county
Organization: Department of the Interior
Backscatter [7125]-- Offshore of 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_7125_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, https://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-1ef5099c-9d60-45ec-947a-03bd46bd37aa
Organization: Department of the Interior
Grain-Size and Data Analysis Results from Sediment Samples Collected at Crocker Reef, Florida, Between 2017 and 2019

Sediment samples were collected from undisturbed sections of the seafloor around Crocker Reef, Florida.  Crocker Reef is a barrier reef located in the northern portion of the Florida Reef Tract that has been classified by Kellogg and others (2015) as a senile or dead reef consisting of areas of sand and rubble with only scattered stony coral colonies. Samples were collected from November 2017 to April 2019 to help ground truth coincident instrumentation deployed during the same time interval, which was used to record various oceanic (currents, waves, turbidity, and pressure) time series datasets that would be used in subsequent analyses. All sediment samples were analyzed using a laser diffraction Coulter LS13 320 particle-size analyzer and sieves to measure the grain-size distribution of the sediments.

Tags: cmhrp, coastal-and-marine-hazards-and-resources-program, coelentrates, crocker-reef, environment, florida, florida-keys, geology, geoscientificinformation, gradistat, grain-size, grain-size-analysis, hawk-channel, location, monroe-county, reef-ecosystems, sediment, time-series-analysis, time-series-datasets, u-s-geological-survey, unconsolidated-deposits, usgs, usgs-1f0698a3-84e9-4bff-92b4-e03db8ce199a
Organization: Department of the Interior
Digital Shoreline Analysis System version 4.3 shoreline intersection points used to calculate long-term shoreline change statistics for the North Shore coastal region from North Salisbury at the New Hampshire border to the west side of Deer Island in Boston Harbor (NorthShore_intersects_LTw.shp)

Due to continued coastal population growth and increased threats of erosion, current data on trends and rates of shoreline movement are required to inform shoreline and floodplain management. The Massachusetts Office of Coastal Zone Management launched the Shoreline Change Project in 1989 to identify erosion-prone areas of the coast. In 2001, a 1994 shoreline was added to calculate both long- and short-term shoreline change rates at 40-meter intervals along ocean-facing sections of the Massachusetts coast.
The Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) in cooperation with the Massachusetts Office of Coastal Zone Management, has compiled reliable historical shoreline data along open-facing sections of the Massachusetts coast under the Massachusetts Shoreline Change Mapping and Analysis Project 2013 Update. Two oceanfront shorelines for Massachusetts (approximately 1,800 km in total length) were (1) delineated using 2008/09 color aerial orthoimagery, and (2) extracted from topographic LIDAR datasets (2007) obtained from NOAA's Ocean Service, Coastal Services Center. The new shorelines were integrated with existing Massachusetts Office of Coastal Zone Management and USGS historical shoreline data in order to compute long- and short-term rates using the latest version of the Digital Shoreline Analysis System (DSAS).

Tags: accretion, atlantic-coast, baseline, boston-harbor, cmgp, coastal-and-marine-geology-program, coastal-processes, digital-shoreline-analysis-system, dsas, erosion, esri-point-shapefile, geospatial-datasets, gloucester, historic-shoreline, intersects, long-term, massachusetts, massachusetts-office-of-coastal-zone-management, measurement-locations, new-england, north-shore, oceans, salisbury, shoreline, shoreline-change-rate, transect, u-s-geological-survey, united-states, usgs, usgs-1f0b562c-9c15-40c8-9f22-3dfd2269c7cf, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
2019-333-FA_trkln: Digital Chirp Subbottom Profile Trackline Data Collected During USGS Field Activity Number 2019-333-FA Offshore of the Rockaway Peninsula, New York, September–October 2019

From September 27 through October 5, 2019, the U.S. Geological Survey (USGS) conducted geophysical surveys to investigate the geologic controls on barrier island evolution and sediment transport offshore of the Rockaway Peninsula, New York. This shapefile represents a line dataset of field activity number (FAN) 2019-333-FA chirp tracklines.

Tags: 2019-333-fa, barrier-island-mapping, chirp, coastal-processes, far-rockaway, geology, geoscientificinformation, geospatial-datasets, location, marine-geology, navigational-data, new-york, north-atlantic, oceans, seismic-reflection, sub-bottom-profiling, trackline, usgs-1f1191e7-7cbe-426a-9832-4f6ceaa91281
Organization: Department of the Interior