AndreaBozzo/ceres-open-data-index huggingface dataset:
Evapotranspiration units for Dixie Valley, Churchill County, Nevada

With increasing population growth and land-use change, urban communities in the desert southwest are progressively 
looking to remote basins to supplement existing water supplies.  Recent applications for groundwater appropriations 
from Dixie Valley, Nevada, a primarily undeveloped basin neighboring the Carson Desert to the east, have prompted 
a reevaluation of the quantity of naturally discharging groundwater. The objective of this study was to develop a new, 
independent estimate of groundwater discharge by evapotranspiration (ET) from Dixie Valley using a combination of 
eddy-covariance evapotranspiration measurements and multispectral satellite imagery. Mean annual groundwater ET 
(ETg) was estimated during October 2009-2011 at four eddy covariance sites.  Two sites were located in phreatophytic 
shrubland dominated by greasewood and two were located on a playa.  Estimates were scaled to the basin level by 
combining remotely sensed imagery with field reconnaissance and site-scale ETg estimates.  Vegetation index and 
brightness temperature data were used to partition Dixie Valley into five discharging ET units, and scale actual and 
potential ETg to the basin level. ET units are spatially constrained by a groundwater discharge area which represents 
the area where discharge from evaporation by open water or bare soil and transpiration from phreatophytic plants 
exceeds the volume of water contributed by precipitation. Each ET unit represents a generalized grouping of vegetation 
and soil conditions that were used as the basis of estimation of total ETg.  ET units were partitioned as: playa lake, 
playa, sparse shrubland, moderate-to-dense shrubland, and grassland.

Tags: churchill-county, dixie-valley, environment, et, et-unit, evaporation, evapotranspiration, geoscientificinformation, great-basin, groundwater, groundwater-discharge, inlandwaters, nevada, pershing-county, phreatophyte, transpiration, usgs-423525ae-94fc-42a4-ad9b-77f220c82a2c
Organization: Department of the Interior
Folds--Offshore of Bolinas Map Area, California

This part of DS 781 presents data for folds for the geologic and geomorphic map of the Offshore of Bolinas map area, California. The vector data file is included in "Folds_OffshoreBolinas.zip," which is accessible from https://pubs.usgs.gov/ds/781/OffshoreBolinas/data_catalog_OffshoreBolinas.html. These data accompany the pamphlet and map sheets of Cochrane, G.R., Dartnell, P., Johnson, S.Y., Greene, H.G., Erdey, M.D., Golden, N.E., Hartwell, S.R., Manson, M.W., Sliter, R.W., Endris, C.A., Watt, J.T., Ross, S.L., Kvitek, R.G., Phillips, E.L., Bruns, T.R., and Chin, J.L. (G.R. Cochrane and S.A. Cochran, eds.), 2015, California State Waters Map Series — Offshore of Bolinas, California: U.S. Geological Survey Open-File Report 2015–1135, pamphlet 36 p., 10 sheets, https://doi.org/10.3133/ofr20151135.
Folds in the Offshore of Bolinas map area are identified on seismic-reflection data based on abrupt truncation or warping of reflections and (or) juxtaposition of reflection panels with different seismic parameters such as reflection presence, amplitude, frequency, geometry, continuity, and vertical sequence. Folds were primarily mapped by interpretation of seismic reflection profile data from USGS field activities S-8-09-NC and L-1-06-SF. The seismic reflection profiles were collected between 2006 and 2009.

Tags: bolinas, bolinas-lagoon, cmhrp, coastal-and-marine-hazards-and-resources-program, continental-island-shelf, environment, folding-geologic, geologic-structure, geoscientificinformation, geospatial-datasets, imagerybasemapsearthcover, maps-and-atlases, marin-county, marine-geology, marine-nearshore-subtidal, marine-offshore-subtidal, northern-california-ecoregion, oceans, pacific-coastal-and-marine-science-center, pacific-ocean, pcmsc, rock-substrate, sea-floor-characteristics, seabed, state-of-california, stinson-beach, structural-geology, transform-continental-margin, u-s-geological-survey, unconsolidated-mineral-substrate, usgs, usgs-4218fe8b-e530-4361-aacc-4fee05ed3075
Organization: Department of the Interior
SIR2016-5029_cfwgoshor_1: Flood Inundation Depth for a Flow of 12,000 cfs at the Gage Coast Fork Willamette River at Goshen, Oregon

The domain of the model is as follows: Row River from Dorena dam to the confluence with the Coast Fork; 
Coast Fork from Cottage Grove dam to the confluence with the Middle Fork; Silk Creek from River Mile 1.7 
to the confluence with the Coast Fork. The basis for these features is the Willamette Flood Insurance Study – 
Phase One (2013). The hydraulics and hydrology for the FIS were reused in the production of these polygons; 
the reports and information associated with the FIS are applicable to this product. The Digital Elevation Model 
(DEM) utilized for the Willamette FIS submittal was produced by combining multiple overlapping topographic 
surveys for the Middle Fork and Coast Fork of the Willamette River. This DEM was created from four sources: 
LiDAR of the Springfield area that was flown in 2008, LiDAR of Silk Creek that was flown in 2011, LiDAR of Fall 
Creek that was flown in 2012, and photogrammetry of the Middle Fork and Coast Fork of the Willamette River 
that was flown in 2004. In areas where no high-resolution elevation data were available, USGS National Elevation 
Dataset (NED) data were used to supplement the DEM. The shapefiles Hi_Res_Extents.shp and Low_Res_Extents.shp 
define the limits of these areas. The horizontal datum of the DEM is NAD 1983 State Plane-Oregon South HARN with 
units of International Feet (NAD83). The vertical datum of the elevation model is NAVD 1988 with units of international 
feet (NAVD-88). In addition, some areas show surveyed bathymetry within the channel. These can be noted by the 
sharp increase in apparent depth, creating a stripe across the depth grid when compared to the LiDAR data, which 
represents the water surface elevation at the time of the aerial data collection. Bridge decks are generally removed 
from DEMs as standard practice. Therefore, these features may be shown as inundated when they are not. An effort 
to clip flood extents on bridge decks was made, but judgement should be used when estimating the usefulness of a 
bridge during flood flow. Comparing the bridge to the surrounding ground can be more informative in this respect than 
simply looking at the bridge itself. The features and depth grids stop as the Coast Fork approaches the Middle Fork 
on the northern end of the reach. See cfwgoshOR.shp for information regarding this file. This represents the depth 
grid for the 12,000 cfs profile.

Tags: coast-fork-willamette-river, creswell, elevation, environment, flood, flood-inundation-maps, flooded-area, geoscientificinformation, geospatial-analysis, goshen, high-water-marks, inlandwaters, oregon, river-stream, usgs-42025a64-6500-4ac3-806e-991e16691d8b, willamette-valley
Organization: Department of the Interior
Sidescan-sonar Tracklines in Geographic Coordinates from Lake Mohave - 2002

Lake Mohave is one of several multi-purpose reservoirs that have been constructed on the Colorado River.  The lake was formed upon completion of the Davis Dam in 1953. No mapping of the floor of the lake had been conducted since completion of the Davis Dam. The U.S. Geological Survey, in cooperation with researchers from the University of Nevada Las Vegas, completed a geophysical survey of this lake in April 2002.  The survey included collection of sidescan sonar imagery of nearly the entire lake floor, and high-resolution seismic-reflection profiles along widely spaced lines throughout the lake.  The detailed mapping of the lake floor was used to determine the amount of sediment that had accumulated in the lake since impoundment, its distribution, and the processes of deposition.

Tags: arizona, cmgp, coastal-and-marine-geology-program, colorado-river, davis-dam, df1000, field-activity-identifier-h-1-02-sw, field-activity-serial-number-02020, geophysics, geospatial-datasets, hoover-dam, lake, lake-mohave, las-vegas, mojave-desert, navigation, navigational-data, nelsons-landing, nevada, north-america, of-2004-1247, open-file-report, polyline, reservoir, shapefile, sidescan, sidescan-sonar, u-s-geological-survey, united-states, usgs, usgs-42008335-5af4-4271-8114-3c7f9eea69d7, woods-hole-science-center
Organization: Department of the Interior
Bathymetry of the Bering Strait: Chukotka to Diomede Island

The bathymetric map of the northern Bering Sea region, plate 1 of USGS Professional Paper 759-B, 1976, was generated using published National Ocean Service maps and an unpublished map from Univ. of Washington. The region covered by the map includes the eastern tip of the Chukotka Peninsula, Russia, east to the Seward Peninsula and northern Yukon Delta, Alaska, and south to St. Lawrence Island, Alaska. The portion digitized was west of the Exclusive Economic Zone (EEZ, or Convention Line of 1867). Only the Russian side of the map was included in the coverage because better data were available for the U.S. side of region from the National Ocean Service, National Geophysical Data Center.

Tags: arctic-ocean, bathymetry, bathymetry-and-elevation, bering-strait, chukotka-peninsula, computational-methods, contouring, contours, distributions, geoscientificinformation, northeast-russia, oceans, usgs-41e77b48-6a66-40e3-ba50-4e8aeb472c92
Organization: Department of the Interior
Digital Shoreline Analysis System version 4.3 transects and short-term (1970-2009) linear regression rate shoreline change statistics within the Cape Cod Bay coastal region from the Cape Cod Canal in Sandwich to Long Point in Provincetown (CapeCodBay_transects_rates_STlr.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, cape-cod, cape-cod-bay, cape-cod-canal, cmgp, coastal-and-marine-geology-program, coastal-processes, digital-shoreline-analysis-system, dsas, erosion, esri-polyline-shapefile, geoscientificinformation, geospatial-datasets, historic-shoreline, linear-regression-rate, lrr, massachusetts, massachusetts-office-of-coastal-zone-management, net-shoreline-movement, new-england, nsm, oceans, provincetown, sandwich, sce, shoreline, shoreline-change-envelope, shoreline-change-rate, short-term, transect, u-s-geological-survey, united-states, usgs, usgs-41e61041-3349-4d84-88b1-1406dd02c17d, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
10-m Hillshaded-relief image of Vineyard and western Nantucket Sounds produced from lead-line and single-beam sonar soundings, swath-interferometric, multibeam, and lidar datasets (TIFF image, UTM Zone 19N, WGS84)

Geologic, sediment texture, and physiographic zone maps characterize the sea floor of Vineyard and Western Nantucket Sounds, Massachusetts. These maps were derived from interpretations of seismic-reflection profiles, high-resolution bathymetry, acoustic-backscatter intensity, bottom photographs, and surficial sediment samples. The interpretation of the seismic stratigraphy and mapping of glacial and Holocene marine units provided a foundation on which the surficial maps were created. This mapping is a result of a collaborative effort between the U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management to characterize the surface and subsurface geologic framework offshore of Massachusetts.

Tags: aquinnah, atlantic-ocean, bathymetry, cape-cod, cape-poge, cmgp, coastal-and-marine-geology-program, computational-methods, cuttyhunk-island, czm, edgartown, elevation, elizabeth-islands, falmouth, geoscientificinformation, geospatial-datasets, geotiff-image, gosnold, hedge-fence-shoal, hillshade, hydrographic-survey-h11076, hydrographic-survey-h11077, hydrographic-survey-h11346, hydrographic-survey-h11920, hydrographic-survey-h11921, imagerybasemapsearthcover, interferometric-sonar, lhommedieu-shoal, lidar, lucas-shoal, marine-geophysics, marthas-vineyard, massachusetts-office-of-coastal-zone-management, menemsha, middle-ground-shoal, multibeam-bathymetry, multibeam-sonar, nantucket-sound, nashawena-island, national-oceanic-and-atmospheric-administration, naushon-island, noaa, nonamesset-island, oak-bluffs, oceans, pasque-island, reson-seabat-8101, reson-seabat-8125, sea-floor-characteristics, sea-ltd-swathplus-interferometric-sonar, seamless-surface, single-beam-echo-sounder, squash-meadow-shoal, succonnesset-point, succonnesset-shoal, u-s-army-corps-of-engineers, u-s-geological-survey, u-s-geological-survey-open-file-report-2006-1357, u-s-geological-survey-open-file-report-2008-1004, u-s-geological-survey-open-file-report-2009-1001, u-s-geological-survey-open-file-report-2011-1184, u-s-geological-survey-open-file-report-2012-1006, u-s-geological-survey-open-file-report-2013-1020, usace-joint-airborne-lidar-bathymetry-technical-center-of-expertise, usgs, usgs-41e3f146-32b7-4c60-8357-8f79262b1d85, vineyard-haven, vineyard-sound, whcmsc, woods-hole, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
EAARL Topography-Gulf Islands National Seashore-Mississippi

Abstract: Elevation maps (also known as Digital Elevation Models or DEMs) of Gulf Islands National Seashore were produced from remotely-sensed, geographically-referenced elevation measurements in cooperation with NASA and NPS. Point data in ascii text files were interpolated in a GIS to create a grid or digital elevation model (DEM) of each beach surface. Elevation measurements were collected in Florida, Mississippi and Texas, over Gulf Islands National Seashore, using the NASA Experimental Advanced Airborne Research Lidar (EAARL), a pulsed laser ranging system mounted onboard an aircraft to measure ground elevation 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 beach at approximately 60 meters per second while surveying from the low-water line to the landward base of the sand dunes. The EAARL, developed by the National Aeronautics and Space Administration (NASA) located at Wallops Flight Facility in Virginia, measures ground elevation with a vertical resolution of 15 centimeters. A sampling rate of 3 kHz or higher results in an extremely dense spatial elevation data set. Over 100 kilometers of coastline can be easily surveyed within a 3- to 4-hour mission time period. The ability to sample large areas rapidly and accurately is especially useful in morphologically dynamic areas such as barrier beaches. Quick assessment of topographic change can be made following storms comparing measurements against baseline data. When subsequent elevation maps for an area are analyzed, they provide a useful tool to make management decisions regarding coastal development.
For more information on Lidar science and the Experimental Advanced Airborne Research Lidar (EAARL) system and surveys, see http://ngom.usgs.gov/dsp/overview/index.php and http://ngom.usgs.gov/dsp/tech/eaarl/index.php .

Tags: airborne-lidar-processing-system, alps, altimetry, bare-earth-elevation, bathymetry-and-elevation, derived-surface, digital-elevation-model, digital-elevation-models, distributions, elevation, elevation-change, experimental-advanced-airborne-research-lidar, gulf-islands-national-seashore, gulf-of-mexico, laser-altimetry, lidar, mississippi, resource-management, topographic-mapping, topography, usgs-41cba093-5f20-445a-8a16-323da7c4d1a3
Organization: Department of the Interior
MODFLOW-2005 model used to Simulate the Evolution of Fluid Underpressures in the                         Great Plains, by Incorporation of Tectonic Uplift and Tilting

A sequence of nine two-dimensional cross-sectional groundwater models 
using MODFLOW-2005 was created to study whether underpressures 
(subhydrostatic heads) in the Paleozoic units underlying the Great Plains 
of North America are a consequence of Cenozoic uplift of the area. Based 
on tectonostratigraphic data incorporated into these nine models, we have 
developed a cumulative uplift history with superimposed periods of deposition 
and erosion for the Great Plains for the period from 40Ma to the present. 
Uplift, deposition, and erosion on an 800 kilometer long geologic cross-section 
extending from northeast Colorado to eastern Kansas is represented in these 
nine time-stepped geohydrologic models. Sequential solution of the two-dimensional 
diffusion equation reveals the evolution of hydraulic head and underpressure in a 
changing structural environment after 40 Ma, culminating in an approximate match 
with the measured present day values. The modeled and measured hydraulic head 
values indicate that underpressures increase to the west. The 2 to 0 Ma model 
indicates that the present-day hydraulic head values of the Paleozoic units have 
not reached steady state. This result is significant because it indicates that 
present-day hydraulic heads are not at equilibrium, and underpressures will 
increase in the future. The pattern uncovered by the series of nine MODFLOW 
models is of increased underpressures with time. Overall, the models indicate 
that tectonic uplift explains the development of underpressures in the Great 
Plains. This USGS data release contains all of the input and output files for the 
simulations described in the associated journal article 
(https://doi.org/10.1155/2018/3765743).

Tags: colorado, environment, fluid-underpressures, geoscientificinformation, great-plains, groundwater, groundwater-model, inlandwaters, kansas, modflow-2005, tectonic-uplift, usgs-41ca4f5f-a2b6-4557-8715-21d747b2233f, usgsgroundwatermodel
Organization: Department of the Interior
Airborne geophysical survey: Scotchman Peak, Idaho and Montana

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, f16017-bonner, f16079-shoshone, f30053-lincoln, f30089-sanders, field-monitoring-stations, geophysical-surveys, geophysics, geospatial-datasets, id, idaho, magnetic, magnetic-field-earth, magnetic-surveys, montana, mt, residual-magnetic-field, scotchman-peak, total-field, united-states, usgs-41c33634-c57c-4260-a8a1-f8fa56f211a1
Organization: Department of the Interior
Airborne geophysical survey: Domelands, California

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, ca, california, domelands, f06029-kern, f06107-tulare, field-monitoring-stations, geophysical-surveys, geophysics, geospatial-datasets, magnetic, magnetic-field-earth, magnetic-surveys, residual-magnetic-field, total-field, united-states, usgs-41b7ac35-a0d6-4515-8105-93c435b8f0dc
Organization: Department of the Interior
Post-Hurricane Florence Aerial Imagery: Cape Fear to Duck, North Carolina, October 6-8, 2018

The U.S. Geological Survey (USGS) Remote Sensing Coastal Change (RSCC) project collects aerial imagery along coastal swaths, in response to storm events, 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 change, and for understanding coastal vulnerability and response to disturbance events.
A nadir (vertical) aerial imagery survey was conducted from Cape Fear to Duck, North Carolina on October 6-8, 2018, in response to Hurricane Florence. The observations along the coastline cover an area approximately 275 kilometers long and 300 to 700 meters (m) wide and encompass both highly developed towns as well as natural undeveloped areas, including the federal lands of Cape Lookout National Seashore and Cape Hatteras National Seashore. Low-altitude (300 m above ground level) digital aerial imagery were acquired from a manned, fixed-wing Piper P28A aircraft using a Sony A7R 36 Megapixel digital camera, along with precise aircraft navigation Global Navigation Satellite System (GNSS) data. Data were collected in shore-parallel lines, flying at approximately 50 meters per second (m/s) and capturing true color imagery at 1 Hertz (Hz), resulting in image footprints with approximately 75-80% endlap, 60-70% sidelap, and 5.3-centimeter (cm) ground sample distance (GSD). The precise time of each image capture (flash event) was recorded, and the corresponding aircraft position was computed in post-processing from the aircraft navigation GNSS data; precise image positions can then be determined by accounting for the lever arm offsets between the aircraft GNSS antenna and the camera lens. Position data, provided as latitude/longitude/ellipsoid height, is referenced to the North American Datum of 1983 (NAD83 (2011)).

Tags: aerial-imagery, aerial-photography, cape-fear, cape-hatteras-national-seashore, cape-lookout-national-seashore, cmhrp, coastal-and-marine-hazards-and-resources-program, coastal-processes, geomorphology, geoscientificinformation, geospatial-datasets, hurricane, hurricanes, image-collections, imagerybasemapsearthcover, north-carolina, oceans, october-2018, outer-banks, post-hurricane-florence, remote-sensing, u-s-geological-survey, usgs, usgs-41b0f06b-9c3d-4fad-9a3e-13c1a76f1257
Organization: Department of the Interior
Navassa_2D_EastCoast_metadata: Fractal analysis of the Navassa Island seascape

This release provides the numerical results of the fractal analyses discussed in Zawada and others. (2010; https://doi.org/10.1029/2010GL043789) for the Navassa Island reefscape.

Tags: average-elevation-variation, fractal-dimension, observation-scale, usgs-41a7741d-1e0d-4f07-b5a9-65d6c27cedf1
Organization: Department of the Interior