AndreaBozzo/ceres-open-data-index huggingface dataset:
Digital Shoreline Analysis System version 4.3 transects and short-term (1970-2009) end point rate shoreline change statistics for the Boston coastal region from Carson Beach in South Boston to Weymouth River, including the Boston Harbor Islands (Boston_transects_rates_STepr.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) 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, cmgp, coastal-and-marine-geology-program, coastal-processes, digital-shoreline-analysis-system, dsas, end-point-rate, epr, erosion, esri-polyline-shapefile, geoscientificinformation, geospatial-datasets, historic-shoreline, massachusetts, massachusetts-office-of-coastal-zone-management, net-shoreline-movement, new-england, nsm, oceans, sce, shoreline, shoreline-change-envelope, shoreline-change-rate, short-term, transect, u-s-geological-survey, united-states, usgs, usgs-ca57c2c1-8203-4a26-82ec-b4f00672c4af, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
Discharge areas for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California

This digital data set represents discharge areas in the Death Valley regional ground-water flow system 
(DVRFS) transient model. Natural ground-water discharge occurs by way of evapotranspiration (ET) 
and spring flow in the DVRFS model domain, an approximately 45,000 square-kilometer region of 
southern Nevada and California. Ground water is simulated as discharging from a drain boundary 
(cell) when the simulated head in the cell rises above a specified drain altitude using the Drain 
package (Harbaugh and others, 2000). Average annual values of ET and spring discharge 
(San Juan and others, 2004) were used as observation information during calibration of the 
DVRFS model (Faunt and others, 2004). The DVRFS transient ground-water flow model is one 
of the most recent in a number of regional-scale models developed by the U.S. Geological Survey 
(USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site 
(NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation", Chapter A, page 8).

Tags: amargosa-desert, ash-meadows, california, california-valley, chicago-valley, china-ranch, clark-county, clayton-valley, coal-valley, death-valley, death-valley-regional-ground-water-flow-system, drain-boundary, drain-observation, esmeralda-county, eureka-valley, flow-model, franklin-lake, franklin-well, garden-valley, ground-water, ground-water-discharge, hydraulic-head, hydrogeology, hydrology, inyo-county, kern-county, las-vegas-valley, lincoln-county, mesquite-valley, mineral-county, modflow-2000, mono-county, nevada, nevada-test-site, nye-county, oasis-valley, owlshead-mountains, pahranagat-range, pahrump-valley, panamint-range, penoyer-valley, railroad-valley, resting-spring, saline-valley, san-bernadino-county, sarcobatus-flat, sheep-range, shoshone, silurian-valley, southern-nevada, spring-flow, spring-mountains, stewart-valley, stone-cabin-valley, tecopa, transient-ground-water-model, usgs-ca60644e-6694-41b7-b9cb-794975b8ad37, yucca-mountain
Organization: Department of the Interior
Airborne geophysical survey: Eugene, Oregon

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, eugene, f41003-benton, f41039-lane, f41041-lincoln, f41043-linn, field-monitoring-stations, geophysical-surveys, geophysics, geospatial-datasets, magnetic, magnetic-field-earth, magnetic-surveys, or, oregon, residual-magnetic-field, total-field, united-states, usgs-ca8508c8-7e12-4c2e-b6be-af064cc67484
Organization: Department of the Interior
U.S. Naval Oceanographic Office Cores (BOCKMAN65 shapefile)

The results of the sediment size analysis performed by the U.S.Naval Oceanographic Office Geological Laboratory for six Phleger gravity cores are presented in this data layer.  Some of the data in this set were originally released as part of the Deck 41 Database available from the National Geophysical Data Center. The attribute for sediment classification was added by the compilers to make these size data more useful for mapping the regional surficial sediment distribution.

Tags: atlantic-ocean, clay, cmgp, coastal-and-marine-geology-program, continental-shelf, cores, geographic-information-system, geoscientificinformation, geospatial-datasets, gis, grain-size, grain-size-analysis, gravel, location, marine-geology, navigational-data, north-america, oceans, open-file-report-03-001, phleger-gravity-cores, point-shapefile, points, sand, sea-floor-characteristics, sediment, sediment-classification, shelf, silt, statistics, surficial-classification, texture, u-s-east-coast, u-s-geological-survey, united-states, usa, usgs, usgs-ca931f6b-485b-45b9-a0f3-57ee5a7525f8, whsc, woods-hole-field-center
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 South Shore coastal region from Hewitts Cove in Hingham to the Cape Cod Canal in Sandwich

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, cape-cod-canal, cmgp, coastal-and-marine-geology-program, coastal-processes, digital-shoreline-analysis-system, dsas, erosion, esri-point-shapefile, geospatial-datasets, hingham, historic-shoreline, intersects, long-term, massachusetts, massachusetts-office-of-coastal-zone-management, measurement-locations, new-england, oceans, sandwich, shoreline, shoreline-change-rate, south-shore, transect, u-s-geological-survey, united-states, usgs, usgs-cab2abfb-fc59-4508-bc02-9722a9870155, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
Base of aquifer contours enhanced with airborne electromagnetic (AEM) surveys of the principal aquifer for portions of the North Platte, South Platte, and Twin Platte Natural Resources Districts, western Nebraska

The U.S. Geological Survey and its partners have collaborated to complete airborne 
geophysical surveys for areas of the North and South Platte River valleys and Lodgepole 
Creek in western Nebraska. The objective of the surveys was to map the aquifers and 
bedrock topography of selected areas to help improve the understanding of groundwater-
surface-water relationships to be used in water management decisions. Frequency-domain 
(2008 and 2009) and time-domain (2010) helicopter electromagnetic surveys were completed, 
using a unique survey flight line design, to collect resistivity data that can be related to lithologic 
information for refinement of groundwater model inputs.  To make the geophysical data useful 
for multidimensional groundwater models, numerical inversion is necessary to convert the 
measured data into a depth-dependent subsurface resistivity model.  This inversion model, 
in conjunction with sensitivity analysis, geological ground truth (boreholes), and geological 
interpretation, is used to characterize hydrogeologic features.  The two- and three- dimensional 
interpretation provides the groundwater modeler with a high-resolution hydrogeologic framework 
and a quantitative estimate of framework uncertainty.  This method of creating hydrogeologic 
frameworks improved the understanding of the actual flow path orientation by redefining the 
location of the paleochannels and associated bedrock highs. The improved models represent 
the hydrogeology at a level of accuracy not achievable using previous data sets.

Tags: environment, geoscientificinformation, imagerybasemapsearthcover, inlandwaters, nebraska, ogallala, scottsbluff, sidney, usgs-caba9679-169c-44e3-93c6-c8d46d9adc18
Organization: Department of the Interior
2016 Florida East Coast USACE Lidar-Derived Dune Crest, Toe and Shoreline

The Storm-Induced Coastal Change Hazards component of the National Assessment of Coastal Change Hazards project focuses on understanding the magnitude and variability of extreme storm impacts on sandy beaches. Lidar-derived beach morphologic features such as dune crest, toe and shoreline help define the vulnerability of the beach to storm impacts. This dataset defines the elevation and position of the seaward-most dune crest and toe and the mean high water shoreline derived from the 2016 U.S. Army Corps of Engineers (USACE) Florida lidar survey. Beach width is included and is defined as the distance between the dune toe and shoreline along a cross-shore profile. The beach slope is calculated using this beach width and the elevation of the shoreline and dune toe.

Tags: atlantic-ocean, cmgp, coastal-and-marine-geology-program, coastal-processes, elevation, environment, florida, geoscientificinformation, hazards, marine-geology, ocean-sciences, oceans, spcmsc, st-petersburg-coastal-and-marine-science-center, u-s-geological-survey, united-states-of-america, usgs, usgs-cabf4295-1e6d-46e5-953a-bebbe1ed651a
Organization: Department of the Interior
OahuE_shorelines - Shorelines of the eastern coastal region of Oahu, Hawaii, from Kahuku to Makapuu, used in shoreline change analysis.

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate.  Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion.  As a result, there is an increased demand for accurate information regarding past and present shoreline changes.  To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.  Shoreline vectors derived from historic and modern sources represent the low water mark (beach toe).
There is no widely accepted standard for analyzing shoreline change.  Existing shoreline data measurements and rate calculation methods vary from study to study and prevent combining results into state-wide or regional assessments.  The impetus behind the National Assessment project was to develop a standardized method of measuring changes in shoreline position that is consistent from coast to coast.  The goal was to facilitate the process of periodically and systematically updating the results in an internally consistent manner.

Tags: cmgp, coastal-and-marine-geology-program, coastal-processes, continental-island-shore-complex, digital-shoreline-analysis-system, dsas, east-oahu-coast, effects-of-coastal-change, environment, erosion, geoscientificinformation, hawaii-coast, hawaii-ecoregion, kahuku-hawaii, linear-regression-rate, makapuu-hawaii, national-assessment-of-shoreline-change-project, national-oceanic-and-atmospheric-administration, noaa, oahu, oceans, shoreline-accretion, shoreline-change-rate, shoreline-erosion, u-s-army-corps-of-engineers, u-s-geological-survey, united-states, university-of-hawaii, usace, usgs, usgs-cad0f4f4-e065-418c-94c8-98e6859a3ad1, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
CTD profiles from a tidal creek in Corte Madera Marsh, Northern San Francisco Bay, California, 2022-2023

CTD profiles were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center to measure the physical characteristics of Corte Madera tidal creek over the course of a tidal cycle during one of the largest spring tides in both Winter and Summer. Conductivity, temperature, and pressure data were collected, as well as suspended-sediment concentration in the water column Each profile was collected from surface to bed. Profiles were collected on 4 days: August 8 and 9 of 2022 and January 19 and 20 of 2023. Data files are grouped by season (summer or winter). Users are advised to assess data quality carefully.

Tags: cmhrp, coastal-and-marine-hazards-and-resources-program, conductivity, corte-madera-bay, corte-madera-marsh, ctd, ctd-measurement, density, geoscientificinformation, marin-county, marine-water-quality, oceans, pacific-coastal-and-marine-science-center, pcmsc, physical-oceanography, salinity, san-francisco-bay, state-of-california, suspended-solids, time-series-datasets, u-s-geological-survey, usgs, usgs-cad4bfcb-82a1-4c39-854f-d1a2c3f47148, water-column-features, water-depth, water-pressure, water-temperature
Organization: Department of the Interior
Archive of Chirp Subbottom Profile, Imagery, and Geospatial Data Collected in 2022 from Boca Chica Key, Florida

As part of the Coastal Sediment Availability and Flux and Defense Advanced Research Protection Agency (DARPA) Reefense projects, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted a nearshore geophysical survey at the nearshore ledge offshore of Boca Chica Key, Florida (FL) November 8-13, 2022. The objective of the project was to collect bathymetric maps and conduct a geologic assessment of the nearshore ledge off Boca Chica Key in support of efforts to construct an artificial coral reef offshore of Naval Air Station Key West. This publication serves as an archive of high-resolution chirp subbottom trace data, survey trackline map, navigation files, geographic information system (GIS) data, and formal Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Processed subbottom profile images are also provided. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG-Y revision 0 format (Barry and others, 1975). In addition to this data release, the SEG-Y files can be downloaded from the USGS Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov.

Tags: 2022-334-fa, barrier-island-mapping, boca-chica-key, chirp, coastal-processes, distributions, field-activity-logs, florida, florida-bay-florida-keys, geology, geoscientificinformation, geospatial-datasets, image-collections, marine-geology, navigational-data, oceans, physical-habitats-and-geomorphology, seg-y, seismic-reflection, seismic-reflection-profiling, society-of-exploration-geophysicists, south-atlantic, sub-bottom-profiling, usgs-cae88aaf-cb11-4a8d-a593-8b0184b2f0e8
Organization: Department of the Interior
DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Line showing the approximate updip limit of permeable rocks forming the Upper Floridan aquifer

Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system 
were developed to define an updated hydrogeologic framework as part of the U.S. Geological Survey 
Groundwater Resources Program. This feature class contains a line showing the approximate updip 
limit of the permeable Upper Floridan aquifer. North of this line very few Upper Floridan wells are 
known to exist.

Tags: alabama, contour, environment, fas, florida, floridan-aquifer-system, geology, georgia, geoscientificinformation, hydrogeology, inlandwaters, regional-groundwater-availability-study, south-carolina, stratigraphy, thickness, united-states-geological-survey, usgs, usgs-caec75ca-925e-417d-bd7e-d154f3d00535
Organization: Department of the Interior
JPEG Images of the Floor of the John Day Reservoir - Acquired in 2000

A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-impoundment sediment, and to verify these geophysical data with video photography and bottom sediment samples. The field program was a cooperative effort between the USGS Coastal and Marine Geology Team of the Geologic Division and the USGS Columbia River Research Laboratory of the Biological Resources Division. The data collection was completed aboard the R/V ESTERO during September 13-27, 2000. The interest in sediment accumulation in the reservoir was two-fold. First, it was unknown how effective this reservoir was as a sediment trap to material that otherwise would have been transported down-river to the estuary and eventually to the ocean. The recent erosion of beaches along the Washington coast has been attributed to a decreased contribution of sediment from the Columbia River to the coastal system due to the damming of the river. Second, sediment accumulation on the floors of reservoirs along the Columbia River has been suggested to be diminishing salmon spawning grounds. The extent of changes in habitat since construction of the John Day Dam, however, had not been documented. Common data sets were needed to address both of these questions, and for these reasons this geophysical and sampling program was undertaken.

Tags: cmgp, coastal-and-marine-geology-program, columbia-river, image-collections, images, john-day-dam, john-day-reservoir, jpeg, lake, lake-umatilla, lakebed-characteristics, mcnary-dam, north-america, of-2004-1014, open-file-report, oregon, reservoir, u-s-geological-survey, underwater-photography, united-states, usgs, usgs-cb0fc307-ca8c-4a66-aa0d-404ed32480d2, washington, woods-hole-science-center
Organization: Department of the Interior
c180nc.m77t - MGD77 data file for Geophysical data from field activity C-1-80-NC in Monterey Bay, Northern California from 05/21/1980 to 05/22/1980

Single-beam bathymetry data along with transit satellite navigation data was collected as part of field activity C-1-80-NC in Monterey Bay, Northern California from 05/21/1980 to 05/22/1980, http://walrus.wr.usgs.gov/infobank/c/c180nc/html/c-1-80-nc.meta.html
The geophysical source was a Knudsen 12 kHz 320B/R echosounder.
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/c/c180nc/html/c-1-80-nc.bath.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, ca, california-state-waters-blocks-38-43, distributions, geoscientificinformation, marine-geology, marine-geophysics, monterey-bay-ca-south, monterey-bay-northern-california, north-pacific-ocean, northern-california, northern-pacific-ocean, oceans, seafloor-topography, single-beam-echo-sounder, usa, usgs-cb17a155-a57f-484e-873d-c8da03062dcf, water-depth
Organization: Department of the Interior
Potentiometric surface contours for the Minnekahta aquifer, Black Hills area, South Dakota

This data set represents potentiometric surface contours for
the Minnekahta aquifer, Black Hills, South Dakota.

Tags: black-hills, contour, environment, geoscientificinformation, ground-water, hydrology, inlandwaters, minnekahta-aquifer, minnekahta-limestone, potentiometric, south-dakota, usgs-cb180b54-f379-4a43-9474-dd80951fca9d, water-level
Organization: Department of the Interior
LANDFIRE 2016 Remap Existing Vegetation Type (EVT) American Samoa

LANDFIRE's (LF) 2016 Remap (Remap) Existing Vegetation Type (EVT) represents the current distribution of the terrestrial ecological systems classification developed by NatureServe for the western hemisphere. In the context, a terrestrial ecological system is defined as a group of plant community types that tend to co-occur within landscapes with similar ecological processes, substrates, and/or environmental gradients. EVT also includes ruderal or semi-natural vegetation types within the U.S. National Vegetation Classification [(NVC) http://usnvc.org/]. See the EVT product page (https://www.landfire.gov/evt.php) for more information about ecological systems and NVC. EVT is mapped using decision tree models, field data, Landsat imagery, elevation, and biophysical gradient data. Decision tree models are developed separately for tree, shrub, and herbaceous lifeforms which are then used to produce a lifeform specific EVT product. These models are generated for each Environmental Protection Agency (EPA) Level III Ecoregion (https://www.epa.gov/eco-research/ecoregions). Riparian, alpine, sparse and other site-specific EVTs are constrained by predetermined masks. Urban and developed areas are derived from the National Land Cover Database (NLCD), whereas agricultural lands originate from the Cropland Data Layer (CDL) and Common Land Unit (CLU) database. Developed ruderal classes are identified by combining wildland-urban-interface (WUI) data with population density information from the US Census Bureau. Annual Disturbance products are included to describe areas that have experienced landscape change within the previous 10-year period. EVT is then reconciled through QA/QC measures to ensure lifeform is synchronized with both Existing Vegetation Cover (EVC) and Height (EVH) products.

Tags: american-samoa, biota, evt, existing-vegetation-type, fires, geographic-information-systems, geospatial-datasets, hazard-preparedness, ia, image-collections, imagerybasemapsearthcover, insular-areas, landfire-2016-remap, lf-2016-remap, oconus, raster-digital-data, remote-sensing, u-s-forest-service-usfs, u-s-geological-survey-usgs, united-states, us, usgs-cb1cb2c3-fbfe-4e31-83db-5f857f7d03ea
Organization: Department of the Interior