AndreaBozzo/ceres-open-data-index huggingface dataset:
Channel Mapping of the Colorado River in Grand Canyon National Park, Arizona - April 2011, river miles 61 to 88 — Data

Bathymetric, topographic, and grain-size data were collected in April 2011 along a 27-mi (43.5 – km) reach of the Colorado River in Grand Canyon National Park, Arizona. The study reach begins at river mile 61.1, about 0.6 -mi (1 –km) above the confluence of the Colorado and Little Colorado Rivers and ends at river mile 88.1 at the upstream boundary of the Bright Angel Rapid (Phantom Ranch boat beach). Channel bathymetry was mapped using multibeam and singlebeam echosounders, subaerial topography was mapped using ground-based total-stations, and bed-sediment grain-size data were collected using an underwater digital microscope system. These data were combined to produce digital elevation models, spatially variable estimates of digital elevation model uncertainty, georeferenced grain-size data, and bed-sediment distribution maps. These data were collected by the Southwest Biological Science Center, Grand Canyon Monitoring and Science Center as a component of a larger effort to monitor the status and trends of sand storage along the Colorado River in Grand Canyon National Park.

Tags: adaptive-management, arizona, bathymetry, bathymetry-measurement, colorado-river, data-release, diamond-creek, digital-elevation-models, elevation, environment, estuarine-processes, field-inventory-and-monitoring, grain-size-analysis, grand-canyon, grand-canyon-national-park, hillshade, imagerybasemapsearthcover, inlandwaters, lees-ferry, little-colorado-river, marble-canyon, mathematical-modeling, multibeam-sonar, paria-river, remote-sensing, sediment-transport, sedimentation, topographic-maps, topography, uncertainty-model, usgs-5f43d93a82ce4c3d1222d335
Organization: Department of the Interior
Alaska permafrost characterization: Geophysical and related field data collected from 2019-2020

Geophysical measurements were collected by the U.S. Geological Survey (USGS) at two sites in Interior Alaska in 2019 and 2020 for the purposes of imaging permafrost structure and quantifying variations in subsurface moisture content in relation to thaw features. In September 2019, electrical resistivity tomography (ERT) and downhole nuclear magnetic resonance (NMR) data were used to quantify permafrost characteristics across the shorelines of Big Trail Lake, a thermokarst lake outside of Fairbanks, Alaska. Three 222 m ERT survey lines were collected perpendicular to the North, East, and South shorelines, and two 110 m lines were collected parallel to the southeast and northeast shorelines. Models of electrical resistivity produced from these data revealed the distribution of frozen and thawed soil to depths of 10-40 m below the surface. NMR data were collected within two 2.3 m deep boreholes adjacent to the East and North perpendicular ERT survey lines in September 2019 and logged again in March 2020. Additional one-time NMR measurements of liquid water content were collected in September 2019 within the lakebed sediments (0-25 cm depth) in approximately 2.5 m lateral increments moving away from the shorelines in the East and North, between 0 and 12 m from shore. These NMR transects roughly coincided with the perpendicular ERT lines. A separate ERT survey was conducted at the Bonanza Creek LTER (Long Term Ecological Research) in September 2019 and was a repeat of a previous ERT survey done in the same exact location three years prior. The survey line was 125 m in length and spanned the transition between burned and unburned forest. Models of electrical resistivity for this site imaged the structure of frozen and thawed soils to depths of 10-15 m. At both sites, manual permafrost-probe measurements of thaw depths were collected at set intervals along each ERT transect and used for comparison to the resistivity models.

Tags: active-layer-thickness, alaska, big-trail-lake, bonanza-creek, borehole-nuclear-magnetic-resonance, disturbance, electrical-resistivity, electrical-resistivity-tomography, environment, fairbanks-north-star, fire, fires, geology-geophysics-and-geochemistry-science-center, geoscientificinformation, gggsc, hydrologic-processes, land-change-science-program, permafrost, soil-moisture, u-s-geological-survey, usgs, usgs-5f44204682ce4c3d1222da05
Organization: Department of the Interior
Updated Compilation of VS30 Data for the United States

VS30, the time-averaged shear-wave velocity (VS) to a depth of 30 meters, is a key index adopted by the earthquake engineering community to account for seismic site conditions. VS30 is typically based on geophysical measurements of VS derived from invasive and noninvasive techniques at sites of interest. Owing to cost considerations, as well as logistical and environmental concerns, VS30 data are sparse or not readily available for most areas. Where data are available, VS30 values are often assembled in assorted formats that are accessible from disparate and (or) impermanent Websites. To help remedy this situation, we compiled VS30 measurements obtained by studies funded by the U.S. Geological Survey (USGS) and other governmental agencies. Thus far, we have compiled VS30 values for 4,369 sites in the United States, along with metadata for each measurement from government-sponsored reports, online databases, and scientific and engineering journals. Most of the data in our VS30 compilation originated from publications directly reporting the work of field investigators. A subset consisting of 20 percent of VS30 values was previously compiled by the USGS and other research institutions. VS30 originating from these earlier compilations were crosschecked against published reports when clarification was needed. Both downhole and surface-based VS30 estimates are represented in our VS30 compilation. Most of the VS30 data are for sites in the western contiguous United States (3,128 sites); 682 VS30 values are for sites in the Central United States; 267 VS30 values are for sites in the Eastern United States and Puerto Rico; 15 VS30 values are for sites in Alaska; 30 VS30 values are for sites in Hawaii. The remaining 247 sites are in the vicinity of Vancouver, Canada.

Tags: earthquake-seismology, seismic-hazard-maps, seismic-monitoring-stations, seismic-profiles, usgs-5f44290282ce4c3d1222da63
Organization: Department of the Interior
Permafrost characterization at the Alaska Peatland Experiment (APEX): Geophysical and related field data collected from 2018-2020

Geophysical measurements and related field data were collected by the U.S. Geological Survey (USGS) at the Alaska Peatland Experiment (APEX) site in Interior Alaska from 2018 to 2020 to characterize subsurface thermal and hydrologic conditions along a permafrost thaw gradient. The APEX site is managed by the Bonanza Creek LTER (Long Term Ecological Research). In April 2018, seven boreholes were emplaced to depths of 2.3-2.5 meters (m) to allow for repeat logging with downhole nuclear magnetic resonance (NMR) to quantify the spatial and temporal variations in unfrozen water content within active-layer and permafrost soils. NMR data were collected on ten separate occasions between April 2018 and October 2020. In June 2018, soil temperature and moisture sensors were installed at select locations and depths across the study site to record point-scale temperature and moisture conditions in 30 minute intervals. In August 2018, electrical resistivity tomography (ERT) data were collected along four 82 m-long transects. Models of electrical resistivity produced from these data revealed the spatial variability in soil lithology and thermal state (frozen vs. thawed) to depths up to 10-15 m below the surface. Lastly, manual permafrost-probe measurements of thaw depths were collected at each instrument location during summer site visits for comparison to the geophysical data.

Tags: active-layer-thickness, alaska, bonanza-creek, borehole-nuclear-magnetic-resonance, disturbance, electrical-resistivity-imaging, electrical-resistivity-tomography, environment, fairbanks-north-star, field-monitoring-stations, geology-geophysics-and-geochemistry-science-center, geoscientificinformation, gggsc, hydrologic-processes, land-change-science-program, permafrost, soil-moisture, soil-temperature, u-s-geological-survey, usgs, usgs-5f44292282ce4c3d1222da69
Organization: Department of the Interior
Haleakala National Park bird survey data 1998-2008

Eight-minute point-transect distance bird surveys were collected in and around Haleakala National Park from 1993-2008. This dataset contains the location, species, and distance to detected birds, as well as identifying initials to distinguish among observers.

Tags: biogeography, biological-population-management, community-ecology, haleakala-national-park, haleakala-volcano, maui, usgs-5f442b0982ce4c3d1222da81, wildlife-biology, wildlife-population-management
Organization: Department of the Interior
Discrete sample surface-water data for the Sacramento-San Joaquin River Delta

The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating the spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration, and particulate and dissolved methyl mercury (MeHg), concentration, in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted flow-through sensors, and c) satellite-based remote sensing. The focus of this specific Child Page is to present all field and laboratory-based data associated with discrete surface water samples collected as part of the CMS and boat mapping components of the study.   
The data provided in the table herein constitute a collection of field-based and laboratory-based measurements that coincide with the timestamps of samples collected at 33 sites across the Delta. Laboratory-based measurements presented herein were conducted by the U.S. Geological Survey (USGS) Organic Matter Research Laboratory (OMRL) in Sacramento, CA, the USGS Earths System Processes Division (ESPD) microbial biogeochemistry laboratory in Menlo Park, CA, the USGS Reston Stable Isotope Laboratory (RSIL) in Reston, VA and the USGS National Water Quality Laboratory (NWQL) in Denver, CO. The machine-readable (comma separated value, *.csv) file presented herein includes laboratory-based measurements for discrete samples collected from 33 established field sites (sampled repeatedly). In addition, field-based sensor data from continuous measurement platforms (CMS locations or as part of the mapping boat flow-through system) are also included in this discrete sample dataset by ensuring that the field sensor measurements were both spatially and temporally coincident with the physically discrete water sample collected for laboratory analysis.

Tags: chemical-analysis, datasets, dissolved-metals, environment, field-monitoring-stations, field-sampling, laboratory-methods, lower-sacramento, mercury, mercury-analysis, nutrient-content-water, oxygen-content-water, real-time-monitoring-and-reporting, san-francisco-bay, san-joaquin-delta, surface-water-quality, suspended-material-water, usgs-5f45218282ce4c3d122516df, water-chemistry, water-column-reflectivity, water-ph, water-properties, water-quality, water-sampling, water-temperature
Organization: Department of the Interior
High resolution satellite remote-sensing-based maps of dissolved organic matter and turbidity for the Sacramento-San Joaquin River Delta

The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration, and particulate and dissolved methyl mercury (MeHg), concentration, in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted flow-through sensors, and c) satellite-based remote sensing. The focus of this specific Child Page is to document a series of derived remote sensing products for turbidity and fluorescent dissolved organic matter (fDOM) based on Sentinel 2 (S2) A/B Multispectral Imager (MSI) imagery acquired between June 1, 2019 and May 31, 2021 for the SSJRD. 
These remote sensing products were developed using S2 A/B Level 1C input data with less than 25% cloud cover over the SSJRD. Each image in the archive was atmospherically corrected to Level 2 remote sensing reflectance with the open source ACOLITE software package. The turbidity and fDOM products were developed using machine learning to generate SSJRD – specific models based on S2 A/B remote sensing reflectance and in situ measurements collected at USGS continuous monitoring stations. 
The specific products presented herein consists of 154 Geographic Tagged Image File Format (GeoTIFF) files, with one folder of 77 turbidity files and one folder of 77 fDOM files. Each GeoTIFF file has the following naming convention: AA_BBBBBB_yyyy_mm_dd_CCCCCC_xxxx.tif, where AA indicates the sensor (S2) that acquired the data, BBBBBB indicates the tile identifying the remote sensing image used, yyyy_mm_dd indicates the year, month and day that the image was acquired, CCCCCC indicates the spatial area (SFBDelta) and xxxx indicates the water quality parameter (turbidity or fDOM).

Tags: california, computational-methods, data-processing, dissolved-organic-matter-dom, environment, field-observation, geospatial-analysis, geospatial-datasets, imagerybasemapsearthcover, lower-sacramento, remote-sensing, san-joaquin-delta, spatial-analysis, turbidity, usgs-5f452eb382ce4c3d12251704, water-properties
Organization: Department of the Interior
Phragmites australis live fractional cover yearly map from 2009 to 2019 of the lower Mississippi River Delta using Landsat and Sentinel-2 satellite data

Phragmites australis live fractional cover (LFC) maps were created of the lower Mississippi River Delta (MRD) using satellite image data. The historical 2009 to 2016 P. australis marsh LFC maps were based on yearly Landsat image data. The 2016 to 2019 P. australis marsh LFC maps were based on yearly Sentinel-2 image data.

Tags: biota, invasive-plant-mapping, land-cover-change, live-fractional-cover, live-vegetation, scale-infestation, usgs-5f45312b82ce4c3d12251707, wetland-dieback
Organization: Department of the Interior
Gila River at Interstate 10 - GPS Survey of Control Data for LiDAR Model 2020

The dataset contains GPS survey data of ground control points deployed for aerial LiDAR data collection. The targets were deployed and surveyed on 8/12/2020 and the LiDAR flight was conducted on the morning of 8/13/2020.  The control points were surveyed using Leica GS14 RTK GPS equipment, S/N rover-2806883, using the Real Time Network, Leica Smartnet, to determine absolute position.

Tags: elevation, gila-river, maricopa-county, usgs-5f45414c82ce4c3d122517fb
Organization: Department of the Interior
Wireline geophysical logging curves and infrared spectral data for the USGS Gulf Coast #1 West Woodway research wellbore, McLennan County, Texas

As part of a broader research program to examine domestic source rock reservoirs, the Gulf Coast Petroleum Systems project of the USGS Energy Resources Program drilled a research borehole into Late Cretaceous mudstones in McLennan County, Texas, including the Cenomanian-Turonian Eagle Ford Group.  A comprehensive wireline geophysical logging suite and over 600 ft of continuous core were obtained to advance the understanding of the stratigraphy, rock and fluid properties, burial history, and depositional environment of these uncompacted and thermally immature Eagle Ford source rocks. Geophysical logs were calibrated with geochemical core data to characterize mineralogical variability and petrophysical characterization of the mudstones in the USGS Gulf Coast #1 (GC-1) West Woodway study wellbore, as disseminated in Burke et al., 2020. Results of that research quantified total organic carbon content as well as total volumes of carbonate, siliceous minerals (e.g., quartz and feldspars), and clay minerals in the Eagle Ford Group and underlying units, and was used in conjunction with the comprehensive suite of geophysical logs to evaluate properties such as organic richness, mechanical integrity, and formation brittleness. Ongoing research into mudstone source rock reservoirs is vital for revising geologic models that serve as the foundation for resource assessments, and are referenced as source rock analogs for other similar petroleum systems in the U.S. and around the world.

Tags: eagle-ford-group, energy-resources, farming, gulf-of-mexico-basin, mineralogy-modeling, oil-resources, petroleum, petroleum-geology, petroleum-reservoirs, petroleum-resources, source-rock-petrophysics, unconventional-reservoir, usgs-5f4555cc82ce4c3d1225195e, wireline-geophysical-log-curves
Organization: Department of the Interior
Source Identification of Mercury and Methylmercury using Stable Isotope Analysis  in the Fox River, WI

The lower Fox River in Wisconsin is a heavily industrialized system and the major tributary to Green Bay within Lake Michigan. The region has been a listed as Area of Concern by the United States Environmental Protection Agency (USEPA), indicating severe impairment of the ecological health of the system. Remedial action has taken place along the river to remove extensive polychlorinated biphenyl (PCB) contamination. However, it was unknown if mercury (Hg), also derived from industrial activity, remained within sediments and actively bioaccumulated within the food web. Mercury stable isotopes were analyzed in sediments and waters collected below the DePere Dam and upstream at Lake Winnebago to compare if Hg sources within the Fox River and determine the extent of industrial contamination. Speciation, methylmercury (MeHg), and isotope measurements were made within biota (prey fish and invertebrates) below DePere Dam to determine if industrial Hg was bioavailable for methylation and bioaccumulation.  
The interpretation of these results can be found in a companion journal articles published in Environmental Science and Technology (https://doi.org/10.1021/acsestwater.1c00285)

Tags: bioaccumulation, fox-river-wi, green-bay, lake-michigan, lake-winnebago-wi, legacy-contamination, methylmercury, site-assessment, usgs-5f45566082ce4c3d12251965
Organization: Department of the Interior
Spatial and bathymetric data for Lago Patillas, Puerto Rico, August 2019

Metadata for this geodatabase describe datasets included in the bathymetric study completed for Lago Patillas in August 2019. The U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, carried out a bathymetric survey to update stage-volume table for Lago Patillas and to generate a bathymetric map. Water-depth data were collected using a bathymetric data collection system coupling a digital depth sounder (single-beam fathometer) and a high-quality antenna. Raw water-depth data collected in August 2019 were referenced to the water-surface elevation at the time of the reservoir survey and were merged with light detection and ranging (lidar) cloud data collected in 2016–17. The dataset included in this geodatabase consists of the following: (1) data points (XYZ) collected in the 2019 bathymetric survey through a fathometer and graduated hand-held rod measurements; (2) 2016–17 lidar-cloud data; (3) boundary of Lago Patillas at an elevation of 67.55 meters above the Puerto Rico Vertical Datum of 2002; (4) a digital terrain model created from data stored in the geodatabase; and, (5) a stage-volume table calculated at 1.0-meter stage intervals from the terrain model.

Tags: bathymetric-map, bathymetry-and-elevation, climatologymeteorologyatmosphere, contouring, digital-elevation-model-dem-1-meter, geospatial-datasets, global-navigation-satellite-system, patillas, puerto-rico, reservoir, usgs-5f45726282ce4c3d12251b6e
Organization: Department of the Interior
Distribution of Niclosamide Following Granular Bayer Applications in Lentic Environments

Temporal and spatial distribution of niclosamide in the water column and sediment were evaluated after the application of granular Bayluscide in six lentic Sea Lamprey (Petromyzon marinus) larval assessment plots.  Water and sediment were collected 0.25, 1, 3, 5, and 7 hours after application and were analyzed for niclosamide, the active ingredient in granular Bayluscide.  Water samples were collected from five heights in the water column (1 cm, 13 cm, 26 cm, ½ water column, and water surface) at five locations inside and four locations 10 m outside of each assessment plot.  Sediment was collected from 18 locations within each plot.  Niclosamide water concentrations inside and outside of the plots did not vary by depth but did vary between plots and by time.  Niclosamide water concentrations also varied by sampler location outside of the plots.  Following granular Bayluscide applications the mean niclosamide concentration in water for all levels, within the plots, decreased from 0.12 mg∙L-1 (SD = 0.12 mg∙L-1) at 15 minutes to 0.061 mg∙L-1 (SD = 0.040 mg∙L-1) at hour 1.  The mean niclosamide concentration in the top 4 cm of sediment was 2.9 mg∙kg-1 (SD = 2.4 mg∙kg-1) 15 minutes after application and was 1.3 mg∙kg-1 (SD = 1.8 mg∙kg-1) at hour 7.  Concentrations in the sediment ranged from 0.000 to 30.730 mg∙kg-1 and varied between the six plots.  Niclosamide concentrations measured in sediment samples were more than 1 order of magnitude greater than in the water and varied spatially by over 4 orders of magnitude.
The datasets included are as follows:
Niclosamide Sediment Concentrations Dataset (NicSed)
Niclosamide Water Column Concentrations Dataset (NicWaterColumn)
Niclosamide Water Concentrations Outside Plot Dataset (NicWaterOutside)
Plot pH, depth and temperature dataset (PlotData)
Plot Sediment pH before and after treatment (SedpHPlotTrt)
Plot Sediment Temp before and after treatment (SedTempPlotTrt)

Tags: biota, granular-bayluscide, lampricide, niclosamide-distribution, none, usgs-5f46615482ce4c3d12254f29
Organization: Department of the Interior
Humpback chub spring and fall capture histories in the Little Colorado River, 2009-2019

These data were compiled to examine rates of skipped migration in adult humpback chub that spawn in the Little Colorado River (LCR). These data include mark-recapture information from the lower 13.56 kilometers of the LCR and from the Colorado River, from river kilometer 105.5-145.7 downstream of Glen Canyon Dam.  Data also include detections from a multiplexer array (MUX) that is located in the LCR and from submersible PIT tag antennas that are deployed in parts of the Colorado River. These data are capture histories that include both spring and fall sampling events that occurred between spring 2009 and spring 2019.  Capture histories can include information about size (small adults being 200-249mm total length and large adult being &gt;250mm total length) and sex/ripeness (captured as a ripe male, a ripe female, or nonripe fish).

Tags: arizona, bioenergetics, biology, biota, capture, capture-histories, capture-recapture-studies, colorado-river, detections, development-biology, ecological-processes, energetics-tradeoffs, field-sampling, fish, glen-canyon-dam, grand-canyon, growth, humpback-chub, little-colorado-river, mark-recapture, migration-organisms, models, movement-rates, multiplexer-array-mux, organism-growth-and-development, population-and-community-ecology, population-studies, ripeness, sampling, sampling-events, sex-gender, sexing-plants-amp-animals, size, skipped-migration, spawn, submersible-pit-tag-antennas, survival, usgs-5f467b4c82ce4c3d12255003, yearly-variability
Organization: Department of the Interior