AndreaBozzo/ceres-open-data-index huggingface dataset:
Collection, analysis, and age-dating of sediment cores from natural and restored salt marshes on Cape Cod, Massachusetts, 2015-16

Nineteen sediment cores were collected from five salt marshes on the northern shore of Cape Cod where previously restricted tidal exchange was restored to part of the marshes. Cores were collected in duplicate from two locations within each marsh complex: one upstream and one downstream from the former tidal restriction (typically caused by an undersized culvert or a berm). The unaltered, natural downstream sites provide a comparison against the historically restricted upstream sites. The sampled cores represent a chronosequence of restoration occurring between 2001–10. Collected cores were up to 168 cm in length with dry bulk density ranging from 0.04 to 2.62 grams per cubic centimeter and carbon content 0.12 % to 48.91 %. Land surface elevation was measured at each site (ranging from 0.484 meters to 1.51 meters relative to NAVD88) to determine the boundaries of each site within current tidal conditions. Gamma counting results for excess lead-210 were used to construct Constant Rate of Supply age models to date individual depth intervals in the core. Additionally, gamma counting results for other radionuclides, particularly cesium-137, gave further insight to evaluate how vertical accretion and carbon burial rates have changed during the past century. Carbon isotopes were measured to evaluate organic matter source.

Tags: accretion-rate, age-model, barnstable-county-606927, bass-creek-617465, boat-meadow-river-616844, cape-cod-606914, cape-cod-canal-619536, carbon, carbon-burial, carbon-isotope-analysis, cesium-137, commonwealth-of-massachusetts-606926, constant-rate-of-supply-crs-model, dock-creek-616591, ecological-restoration, elevation, environment, geoscientificinformation, inlandwaters, lead-210, location, mill-creek-616621, nitrogen, oceans, piston-coring, radiometric-dating, sagamore-beach-617797, salt-marsh, salt-marshes, scusset-beach-616340, sea-level-change, sedimentation, soil-chemistry, town-of-bourne-619412, town-of-eastham-619414, town-of-orleans-618257, town-of-sandwich-618259, united-states-of-america, usgs-60bfb987d34e86b938916dc9, wetland-ecosystems, wetland-soils, wetlands
Organization: Department of the Interior
Collection, analysis, and age-dating of sediment cores from Herring River wetlands and other nearby wetlands in Wellfleet, Massachusetts, 2015–17

The Herring River estuary in Wellfleet, Cape Cod, Massachusetts, has been tidally restricted for more than a century by a dike constructed near the mouth of the river. Upstream from the dike, the tidal restriction has caused the conversion of salt marsh wetlands to various other ecosystems including impounded freshwater marshes, flooded shrub land, drained forested upland, and brackish wetlands dominated by Phragmites australis. This estuary is now managed by the National Park Service, which plans to replace the aging dike and restore tidal flow to the estuary. To assist National Park Service land managers with restoration planning, the U.S. Geological Survey collected fourteen sediment cores from different ecosystems within the tidally restricted Herring River estuary (four sites) and an estuary in Wellfleet Harbor near the Herring River dike (three sites) between 2015 and 2017. Collected cores were up to 70 cm in length with dry bulk density ranges from 0.03 to 2.39 grams per cubic centimeter and carbon content 0.23% to 46.25%. Land surface elevation was measured at each site (ranging from -0.149 meters to 1.494 meters relative to NAVD88) to determine the boundaries for each site within current tidal conditions. Gamma counting results for excess lead-210 were used to construct Constant Rate of Supply (CRS) age models to age-date individual depth intervals in the cores. Additionally, gamma counting results for other radionuclides, particularly cesium-137 gave further insight to evaluate how vertical accretion and carbon burial rates have changed during the past century. This dataset can help evaluate differences among the varied ecosystems and vegetation types to make predictions about potential changes as tidal restoration commences in the Herring River estuary.

Tags: 137-cesium, 210-lead, accretion-rate, age-model, barnstable-county-606927, cape-cod-606914, cape-cod-national-seashore-606900, carbon, carbon-burial, carbon-isotope-analysis, commonwealth-of-massachusetts-606926, constant-rate-of-supply-crs-model, duck-creek-616758, ecological-restoration, elevation, environment, geoscientificinformation, herring-river-616776, inlandwaters, location, nitrogen, oceans, piston-coring, radiometric-dating, salt-marshes, sea-level-change, sedimentation, soil-chemistry, town-of-wellfleet-618261, united-states-of-america, usgs-60bfb916d34e86b938916da1, wellfleet-harbor-616838, wetland-ecosystems, wetland-soils, wetlands
Organization: Department of the Interior
PFAS, pesticide, and pharmaceutical concentrations in the Bronx River, New York, 2019

This U.S. Geological Survey Data Release provides surface-water and bed sediment quality data at the Bronx River, New York, 2019. The data were collected with support from the Urban Waters Federal Partnership (UWFP) and others. Surface-water samples were collected at six locations along the Bronx River and analyzed for poly- and perfluoroalkyl substances (PFAS), pharmaceuticals, and pesticides. Water-quality field parameters such as pH, specific conductance dissolved oxygen, water temperature, and turbidity were measured during each site visit. Each surface-water site was sampled once under storm (wet) conditions and once under non-storm conditions (dry). 'Wet' samples indicate a precipitation event of 0.5 inch or more that occurred within 48 hours prior to collecting the sample. Bed sediment samples were collected once at two locations along the Bronx River and analyzed for PFAS only. Replicates, field blanks, equipment blanks, source solution blanks, and laboratory-control samples were collected and assessed for quality assurance and quality control (QA/QC) purposes. Laboratory-control samples for PFAS include method blanks, isotope dilution standard recoveries, and spikes recoveries.

Tags: bronx, bronxville, new-york, pesticides, pfas, pharmaceuticals, river, stream, surface-water, united-states, urban-waters, usgs-60c10559d34e86b938940eec, white-plains
Organization: Department of the Interior
Collection, Analysis, and Age-Dating of Sediment Cores from Salt Marshes, Rhode Island, 2016

The accretion history of fringing salt marshes in Narragansett Bay, Rhode Island, was reconstructed from sediment cores. Age models, based on excess lead-210 and cesium-137 radionuclide analysis, were constructed to evaluate how vertical accretion and carbon burial rates have changed during the past century. The Constant Rate of Supply (CRS) age model was used to date six cores collected from three salt marshes. Both vertical accretion rates and carbon burial increased from 1900 to 2016, the year the data were collected. Cores were up to 90 cm in length with dry bulk density ranging from 0.07 to 3.08 grams per cubic centimeter and carbon content 0.71 % to 33.58 %.

Tags: 137-cesium, 210-lead, accretion-rate, age-model, almy-brook-1218186, carbon-burial, constant-rate-of-supply-crs-model, ecological-restoration, environment, geoscientificinformation, inlandwaters, location, mary-c-donovan-marsh-1901736, marys-creek-2090042, narragansett-bay-1218465, piston-coring, prudence-island-1218169, radiometric-dating, rhode-island, salt-marsh, salt-marshes, sea-level-change, sedimentation, soil-chemistry, united-states-of-america, usgs-60bfb7c2d34e86b938916d1e, wetland-ecosystems, wetland-soils, wetlands
Organization: Department of the Interior
Shell-skeletal remains of Gopherus agassizii collected at the 7.77 square km plot at the fenced Desert Tortoise Research Natural Area in 1985, 1989-1993, 1997-2002, and 2012.

The database on shell-skeletal remains from 1980 through 2012 was collected as part of a monograph covering the desert tortoise populations inside and outside the fenced Desert Tortoise Research Natural Area during a period of population decline. The principal objectives of the study were to compare trends in demographic and habitat data inside the protective fence with those outside the fence. Populations and habitat outside the fence were unprotected from recreational vehicle use and sheep grazing. Data for each shell-skeletal remain found on the long-term, 7.77 square kilometers plot, included carcass number, previous number as a live tortoise, date of collection, date last observed if marked; known or estimated size, and sex, amount or totality of remains (scutes and bones), estimated time since death, location in the environment, and relationship (if any) to anthropogenic impacts or non- human predators or scavengers, and causes of death.

Tags: biota, desert-tortoise-research-natural-area, mojave-desert, population-dynamics, specimen-collecting, usgs-60bea524d34e86b938912797, usgs-ema-low-pl-mojave-desert-sw-desert, usgs-ema-low-sb-tampe-listed-reptiles
Organization: Department of the Interior
USGS Contributions to the Nevada Geothermal Machine Learning Project (DE-FOA-0001956): Geophysics, Heat Flow, Slip and Dilation Tendency

This package contains USGS data contributions to the DOE-funded Nevada Geothermal Machine Learning Project (DE-FOA-0001956), with the objective of developing a machine learning approach to identifying new geothermal systems in the Great Basin. This package contains three major data products (geophysics, heat flow, and fault dilation and slip tendencies) that cover a large portion of northern Nevada. The geophysics data include map surfaces related to gravity and magnetic data, and line and point data derived from those surfaces. Heat flow data include an interpolated map of heat flow in mW/m², an error surface, and well data used to construct them. The dilation and slip tendency information exist as attributes assigned to each line segment of mapped faults and geophysical lineaments.

Tags: faulting-geologic, geophysics, geothermal-resources, gravitational-field-earth, heat-flow-earth, magnetic-field-earth, natural-resource-assessment, stress-field, usgs-60be89e3d34e86b938912329
Organization: Department of the Interior
Daily 30-m fractional snow covered area and summary stats for the National Elk Refuge, Wyoming from 2015 to 2020

This dataset contains daily fractional snow covered area (fSCA) at 30-m spatial resolution from August 1, 2015 - May 15, 2020 (five winters) for the National Elk Refuge in Wyoming, USA. The following summary statistics are also included: date of snow accumulation, date of snow melt, number of days in year with snow on ground, and percentage of "winter days" in year with snow on ground. The SNOWARP algorithm was used to produce these data (Berman et. al., 2018; see full citation below), in which dynamic time warping fuses together MODIS MOD10A1 with Landsat level-3 fSCA, resulting in daily 30-m fSCA estimates. All dates correspond to winter day of year (WDOY), which runs between August 1 - July 31 each season and has values between 1-365. Date of snow accumulation and date of snow melt provide an indication of when snow begins to persist and when it melts. Details are provided below. Number of days in year with snow on ground is the number of days, out of 365, with snow on ground between August 1 and July 31st each winter. The percentage of winter days in year with snow on ground is the percentage of days with snow each winter between date of snow accumulation and date of snow melt.
Please note that winter 2018-2019 was only processed until May 31, 2019 (WDOY 304), and winter 2019-2020 was only processed until May 15, 2020 (WDOY 288), and therefore the only summary stat available for these winters is date of snow accumulation.

Tags: dynamic-time-warping, ecology, elk, environment, landsat-modis-data-fusion, remote-sensing, snow-cover, united-states, usgs-60be858ed34e86b938912245, wyoming
Organization: Department of the Interior
Isopachs of total net coal in A-D coal zones, Yampa Coal Field (yam*thkg)

These are shapefiles and ARC/INFO polygon coverages showing
the isopachs of total net coal in beds greater than or equal
to 1.2' thick for the A, B, C, and D coal zones in the
Williams Fork Formation, Yampa coal field, northwestern
Colorado. YAMATHKG is for the A coal zone, YAMBTHKG is for
the B coal zone, etc.

Tags: coal, coal-thickness, colorado, colorado-plateau, cplateaucoal, economy, environment, geoscientificinformation, green-river-basin, iles-formation, isopachs-of-coal, mesaverde-group, moffat-county, national-coal-resource-assessment-ncra, nca2000, rio-blanco-county, routt-county, sandwash-basin, trout-creek-sandstone-mbr, twentymile-sandstone-mbr, usgs-60c3a1dfd34e86b93897eae4, williams-fork-formation, yampa-coal-field, yampacoal
Organization: Department of the Interior
Land Change Monitoring, Assessment, and Projection (LCMAP) Collection 1.0 Annual Land Cover and Land Cover Change Validation Data (2000-2019) for Hawaii

A validation assessment of Land Cover Monitoring, Assessment, and Projection Collection 1.0 annual land cover products (2000–2019) for Hawaii was conducted with an independently collected reference dataset. Reference data land cover attributes were assigned by trained interpreters for each year of the time series (2000–2019) to a reference sample of 600 Landsat resolution (30m x 30m) pixels. The LCMAP and reference dataset labels for each pixel location are displayed here for each year, 2000–2019.

Tags: environment, hawaii, image-analysis, land-change-monitoring-assessment-and-projection, land-use-and-land-cover, land-use-change, landsat, lcmap, location, time-series-datasets, united-states, usgs-60be76b1d34e86b938911f69
Organization: Department of the Interior
Coastal wetland vegetation and elevation data characterizing a Sudden Vegetation Dieback event in San Bernard National Wildlife Refuge in 2019

Climatic extremes are becoming more frequent with climate change and have the potential to cause major ecological shifts and ecosystem collapse. Along the northern Gulf of Mexico, a coastal wetland in the San Bernard National Wildlife Refuge in Texas suffered significant and acute vegetation dieback following Hurricane Harvey in 2017. We identified plant zonal boundaries along an elevation gradient with drought-tolerant plant species, including succulents and graminoids, at higher elevations and flood-tolerant species, including Spartina alterniflora, at lower elevations. We measured mean canopy height for each species. Soil surface elevation was measured using Real-Time Kinematic (RTK) methods.

Tags: biota, brazos-river, coastal-wetlands, ecological-thresholds, ecosystem-collapse, extreme-climatic-events, extreme-precipitation, gulf-of-mexico, hurricane-harvey, precipitation-atmospheric, regime-shift, salt-marsh, san-bernard-national-wildlife-refuge, san-bernard-river, sudden-vegetation-dieback, texas, tropical-cyclones, united-states, usgs-60be4753d34e86b93891135a, wetlands
Organization: Department of the Interior
Data set for a mesocosm to field assessment of the ecological risks associated with neonicotinoids in US streams.

Neonicotinoids, a widely used class of insecticide, have been found in surface waters globally. They pose a risk to non-target species found in aquatic environments such as aquatic macroinvertebrates. To better understand the effects of  the neonicotinoids imidacloprid, clothianidin and their mixtures on aquatic communities we ran a 30 day mesocosm test. Rock trays were colonized with natural benthic communities in the Cache La Poudre River, located in the mountains of  Northern Colorado, and relocated to a laboratory experimental stream setting. In total there were 33 experimental streams: 3 controls and 30 treatments consisting of both single compound and binary compound exposures with 5 treatment levels for each exposure series. Water quality and chemistry samples were collected throughout the experiment. Larval invertebrates remaining in each experimental stream at the end of the experiment were collected, enumerated and identified to the lowest taxonomic unit practical, typically genus or species. Emergent insects were collected each day of the experiment and identified to lowest taxonomic unit. Chlorophyll a was measured in each experimental stream 3 times throughout the 30 day experiment.

Tags: aquatic-insects, benthic-communities, biota, clothianidin, ecotoxicology, effect-concentration, imidacloprid, indirect-effects, macroinvertebrate, mesocosm, neonicotinoid, spearpesticides, species-sensitivity-distribution, usgs-60aea787d34e4043c8539fb6
Organization: Department of the Interior
Research hazard model for the 2021 update to the National Seismic Hazard Model for Hawaii

A research model (RM) was prepared, which incorporates declustered rate grids that are scaled to account for the total number of earthquakes in the full catalog (with no declustering) using factors shown in Table 1 of Petersen et al. (2021), based on Marzocchi and Taroni (2014). A comparison of the 2021 research model and the 2021 National Seismic Hazard Model for Hawaii was performed by creating difference and ratio maps for a uniform-hazard with a 2% probability of excedance in 50 years for spectral accelerations at 0.2 and 1.0 second periods.  The data are for a reference site condition of Vs30 equal to 760 m/s.  The maps and gridded data used to make the maps are availble here for download.

Tags: earthquakes, hawaii, hazards, seismology, united-states, usa, usgs-60be2371d34e86b9389106c8
Organization: Department of the Interior
Comparison of 2021 and 2001 National Seismic Hazard Models for Hawaii.

A comparison of the 2021 and 2001 National Seismic Hazard Models for Hawaii was performed by creating difference and ratio maps for a uniform-hazard with a 2% probability of excedance in 50 years for spectral accelerations at 0.2 and 1.0 second periods.  The data are for a reference site condition of Vs30 equal to 760 m/s.  A similar comparison between the ground-motion models (GMMs) used in 2021 versus 2001 was performed by running the 2021 NSHM with the 2001 GMMs.  The maps and gridded data used to make the maps are availble here for download.

Tags: earthquakes, hawaii, hazards, seismology, united-states, usa, usgs-60be1f9fd34e86b9389105a8
Organization: Department of the Interior
GPS velocity data and slip rates on décollements for the 2021 update of the National Seismic Hazard Models for Hawaii.

Data from the geodetic network across Hawaii were used to model slip rates for décollement faults along the southern and western flanks of the Island of Hawai`i.  Data for the observed and predicted GPS velocities at each station, the inverted slip rates along the décollements,  as well as the coordinates defining the outline of the décollements are included here.

Tags: earthquakes, hawaii, hazards, seismology, united-states, usa, usgs-60be1d29d34e86b9389104f6
Organization: Department of the Interior
GIS shapefile and related summary data describing irrigated agricultural land use for the 15 counties fully within the Northwest Florida Water Management District, Florida, 2021

A Geographic Information System (GIS) shapefile and summary tables of irrigated agricultural land-use are provided for the 15 counties fully within the Northwest Florida Water Management District (Bay, Calhoun, Escambia, Franklin, Gadsden, Gulf, Holmes, Jackson, Leon, Liberty, Okaloosa, Santa Rosa, Wakulla, Walton, and Washington counties). These files were compiled through a cooperative project between the U.S. Geological Survey and the Florida Department of Agriculture and Consumer Services, Office of Agricultural Water Policy. Information provided in the shapefile includes the location of irrigated lands that were verified during field surveying that started in May 2021 and concluded in August 2021. Field data collected were crop type, irrigation system type, and primary water source used. A map image of the shapefile is also provided. Previously published estimates of irrigation acreage for years since 1982 are included in summary tables.

Tags: bay-county, calhoun-county, crop-type, environment, escambia-county, farming, florida, florida-department-of-agriculture-and-consumer-services, franklin-county, gadsden-county, groundwater, gulf-county, holmes-county, image-collections-aerial-photography, inlandwaters, irrigation-type, jackson-county, land-use, land-use-classification-codes, leon-county, liberty-county, northwest-florida-water-management-district, okaloosa-county, santa-rosa-county, surface-water, usgs-60be1c3ed34e86b9389104b5, wakulla-county, walton-county, washington-county
Organization: Department of the Interior
Concentrations of Perfluoroalkyl Substances in the Eggs of Brown Pelicans from Charleston, SC (2019)

This dataset contains concentrations of perfluoroalkyl substances (PFAS) measured in the eggs of brown pelicans nesting near Charleston, SC, USA, as well as movements of brown pelicans tracked with GPS-Platform Terminal transmitters.
In total, 36 eggs were measured from three breeding colonies of brown pelicans for the presence of 24 PFAS analytes using LC-MS/MS. Concentrations were then analyzed for differences between colonies based on urban habitat use and distance from Charleston.

Tags: biota, brown-pelican, charleston, perfluoroalkyl-substances, south-atlantic-bight, south-carolina, usgs-60c2447ad34e86b9389556eb
Organization: Department of the Interior
Uniform-hazard maps and GIS data for the 2021 update of the National Seismic Hazard Model for Hawaii.

Uniform-hazard ground motion maps and their underlying GIS data were prepared for PGA and horizontal spectral accelerations at 0.2, 1.0, and 5.0 second period, with a probability of exceedance of 2%, 5% and 10% in 50 years, for NEHRP soil site classes B/C and D (VS30 equal to 760 and 260 m/s, respectively).

Tags: earthquakes, hawaii, hazards, seismology, united-states, usa, usgs-60be19d3d34e86b93891042e
Organization: Department of the Interior
Gridded uniform-hazard data for the 2021 update to the National Seismic Hazard Model for Hawaii.

Gridded, uniform-hazard data for 2%, 5%, and 10% probability of exceedance in 50 years were extracted from the hazard curves for all twenty-three ground-motion intensity measures and all eight soil site classes.  The ground-motion intensity measures, including PGA, PGV, and spectral accelerations for 0.01, 0.02, 0.03, 0.05, 0.075, 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.75, 1, 1.5, 2, 3, 4, 5, 7.5  and 10 second, and the soil site classes include VS30 = 1500, 1080, 760, 530, 365, 260, 185, and 150 m/sec, representing NEHRP site classes A/B, B, B/C, C, C/D, D, D/E, and E.

Tags: earthquakes, hawaii, hazards, seismology, united-states, usa, usgs-60be1969d34e86b93891040d
Organization: Department of the Interior