AndreaBozzo/ceres-open-data-index huggingface dataset:
Woody riparian invasive plant presence, stem density, and rank dominance and environmental conditions in 2012 at 238 bridge crossings in the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas, and South Platte River Basins, USA

This dataset presents observations and measurements of riparian plant invasion, community composition, and environmental conditions at 238 bridge crossings in four western USA river basins: the Colorado Headwaters, upper/middle Rio Grande, upper Arkansas River, and South Platte River (281,946 square kilometers). The 238 sites are a stratified random sample of all bridge crossings in the river basins, with roughly equal numbers of sites in landscapes dominated by (1) urban and residential (developed) land-use, (2) agricultural (cultivated) land-use, and (3) undeveloped land cover. The dataset includes field observations of stem counts for three non-native riparian woody plant taxa (Tamarix ramosissima x T. chinensis hybrids - tamarisk or saltcedar, Elaeagnus angustifolia - Russian olive, Ulmus pumila - Siberian elm) in each of four size classes for each taxon, to evaluate presence, stem density, and size class distributions of these taxa. Second, it includes field observations ranking the five woody taxa with the highest cover in the riparian floodplain, to evaluate overall riparian plant community composition as well as rank dominance of the three non-native taxa. Third, the dataset includes various measures of environmental conditions at the sites, including adjacent human land-use, nearby human planting of the three non-native taxa, mean annual temperature and precipitation, watershed drainage area, streamflow intermittency, upstream reservoir storage, streambank stabilization, floodplain domestic grazing, and riparian forest cover. Some environmental conditions were measured in the field, some were measured in aerial photographs, and some measurements were obtained from previously existing data layers. Fourth, the dataset includes presence/absence data for the three non-native taxa across a wider area of the floodplain at a subset of the sites that had been sampled previously in 1997-2001 for a separate dataset (n=33 including two that were not included in the 238 sites described above).

Tags: biological-invasion, biota, colorado, community-composition, environment, forest, inlandwaters, land-use, species-composition, streambank-stabilization, urban, usgs-5aba7932e4b081f61abb4c20, western-north-america, western-united-states
Organization: Department of the Interior
Bayesian network model outputs of the probability of habitat availability per winter month for young of year Gulf Sturgeon at a 30-m pixel scale in Apalachicola Bay, FL for 35 physiological and habitat scenarios

This USGS data release represents 35 geospatial datasets that were the Gulf Sturgeon Bayesian network model's outputs. The Gulf Sturgeon is a federally listed, anadromous species, inhabiting Gulf Coast rivers, estuaries, and coastal waters from Louisiana to Florida. The U.S. Geological Survey partnered with the U.S. Fish and Wildlife Service (USFWS), U.S. Army Corps of Engineers, University of Georgia, and their conservation partners to support adaptive management of Gulf Sturgeon (Acipenser oxyrinchus desotoi) by developing a quantitative, spatial model. The model is a Bayesian network that predicts the probability of habitat availability (days) per winter month for age-0 Gulf Sturgeon at a 30-m pixel scale in estuarine critical habitat. The model predicts habitat availability (days) for 75 alternative physiological and habitat scenarios, which were the unique combination of river discharge, winter month, and month of arrival to the estuary. The probability of habitat availability (days) is predicted from habitat characteristics that could be influenced by management actions. The model's structure was defined by empirical data, expert elicitation, and simplifying assumptions.

Tags: adaptive-management, apalachicola-bay, bayesian-network, biota, decision-support-tools, environment, estuaries, gulf-coast, habitat-objectives, landscape-conservation, recovery-objectives, spatial-models, strategic-habitat-conservation, sturgeons-paddlefishes, usgs-5ab947c5e4b081f61ab9ca19, water-condition
Organization: Department of the Interior
Data for Gulf Sturgeon Bayesian Network Model

This USGS data release represents tabular and geospatial data for the Gulf Sturgeon Bayesian Network Model. The Gulf Sturgeon is a federally listed, anadromous species, inhabiting Gulf Coast rivers, estuaries, and coastal waters from Louisiana to Florida. The data release was produced in compliance with 'open data' requirements as way to make the scientific products associated with USGS research efforts and publications available to the public. The dataset consists of 2 separate items:
1. Bayesian network model that predicts the probability of habitat availability (days) per winter month for age-0 Gulf Sturgeon at a 30-m pixel scale in Apalachicola Bay, FL (Tabular datasets) 
2. Bayesian network model outputs of the probability of habitat availability (days) per winter month for age-0 Gulf Sturgeon at a 30-m pixel scale in Apalachicola Bay, FL for 35 physiological and habitat scenarios (Raster datasets)

Tags: adaptive-management, apalachicola-bay, bayesian-network, biota, decision-support-tools, environment, estuaries, gulf-coast, habitat-objectives, landscape-conservation, recovery-objectives, spatial-models, strategic-habitat-conservation, sturgeons-paddlefishes, usgs-5ab94343e4b081f61ab9c997, water-condition
Organization: Department of the Interior
Little Sandy Branch Study Area (Site 3)

In 2015-2016, physicochemical properties and chemical characteristics of stream water, bed sediment, groundwater, and soil were determined in watersheds located outside of, but in proximity to, the Peason Ridge Training Area and Main Post at the Joint Readiness Training Center and Fort Polk boundaries to document background trace element concentrations. Water samples were analyzed for physicochemical properties, major inorganic ions, selected trace elements, and dissolved organic carbon. Selected trace elements included antimony, arsenic, cadmium, copper, iron, lead, manganese, mercury, and zinc. Stream bed-sediment and soil samples were analyzed for major inorganic ions, selected trace elements, and grain size distribution.
Surface-water samples were collected near the downstream transect of each stream reach. Monitoring wells were located adjacent to the stream reach and in close proximity to the surface-water sampling sites. Bulk bed-sediment samples were collected during normal low-flow conditions. Each sample consisted of a composite sample from five locations (right edge, left edge, and center of a middle transect, then upstream and downstream of the middle transect) within each stream reach. Three soil samples, one from hilltops, one from side slopes, and one from riparian zones, were collected from areas adjacent to each stream reach.  Each soil sample consisted of 5 to 10 grab samples collected by a 21-inch-long, 5/8-inch internal diameter stainless-steel hand auger and composited in Teflon lined pans. All samples were collected following USGS sampling protocols.
This data release provides database and mapping information for assessment of trace element concentrations in stream water, bed sediment, groundwater, and soil found in relatively pristine and undisturbed watersheds in proximity to watersheds used for military training.

Tags: groundwater-and-surface-water-interaction, sediment-analysis, surface-water-quality, usgs-5ab92741e4b081f61ab9c8af
Organization: Department of the Interior
Little Kisatchie Bayou Study Area (Sites 1 and 2)

In 2015-2016, physicochemical properties and chemical characteristics of stream water, bed sediment, groundwater, and soil were determined in watersheds located outside of, but in proximity to, the Peason Ridge Training Area and Main Post at the Joint Readiness Training Center and Fort Polk boundaries to document background trace element concentrations. Water samples were analyzed for physicochemical properties, major inorganic ions, selected trace elements, and dissolved organic carbon.  Selected trace elements included antimony, arsenic, cadmium, copper, iron, lead, manganese, mercury, and zinc. Stream bed-sediment and soil samples were analyzed for major inorganic ions, selected trace elements, and grain size distribution.
Surface-water samples were collected near the downstream transect of each stream reach. Monitoring wells were located adjacent to the stream reach and in close proximity to the surface-water sampling sites. Bulk bed-sediment samples were collected during normal low-flow conditions. Each sample consisted of a composite sample from five locations (right edge, left edge, and center of a middle transect, then upstream and downstream of the middle transect) within each stream reach. Three soil samples, one from hilltops, one from side slopes, and one from riparian zones, were collected from areas adjacent to each stream reach.  Each soil sample consisted of 5 to 10 grab samples collected by a 21-inch-long, 5/8-inch internal diameter stainless-steel hand auger and composited in Teflon lined pans. All samples were collected following USGS sampling protocols.
This data release provides database and mapping information for assessment of trace element concentrations in stream water, bed sediment, groundwater, and soil found in relatively pristine and undisturbed watersheds in proximity to watersheds used for military training.

Tags: groundwater-and-surface-water-interaction, sediment-analysis, surface-water-quality, usgs-5ab926b4e4b081f61ab9c8a3
Organization: Department of the Interior
Results of airflow and temperature monitoring in a commercial cave in Greene County, Missouri, December 2016-November 2017

This dataset includes single point airflow monitoring data collected with an ultrasonic anemometer  (velocity and direction) recorded at five selected locations in a commercial cave in Greene County, Missouri. The data was collected as part of a larger effort to monitor air contamination in commercial caves by the Missouri Department of Natural Resources.

Tags: cave, environment, usgs-5ab8fec6e4b081f61ab9c6f5
Organization: Department of the Interior
Oxbow Lake Study Area

Nutrient and phytoplankton data indicate poor environmental health in four oxbow lakes in central Louisiana suggesting that long-term agriculture practices and increases in shoreline development have accelerated eutrophication. Surface-water quality and phytoplankton indicators of eutrophication were examined at Lake Bruin, Lake St. John, Lake St. Joseph, and False River Lake along an eutrophication gradient. These oxbow lakes are cut-off meanders of the Mississippi River that do not receive overbank flow from the river due to the levee system built in the early twentieth century. Oxbows have formed at various times in the last few hundred years as the Mississippi River carves a more efficient hydrologic route to the Gulf of Mexico and exhibit a succession of stages in lake evolution, from deep and oligotrophic to shallow and eutrophic.
Water-quality samples were collected three times per year: once in late spring, once in late summer-early fall, and once in winter. Water samples were analyzed for major ions, nutrients, suspended sediments, pesticides, dissolved organic carbon, and chlorophyll. At each site, physiochemical properties (water temperature, specific conductance, dissolved oxygen, and pH) were recorded at multiple depths within a single vertical profile. Phytoplankton community samples and cyanotoxin samples were collected from the photic zone at the time of water-quality sample collection at one site per lake. This data release provides water quality profile and phytoplankton data for these lakes.

Tags: surface-water-quality, usgs-5ab52420e4b081f61ab77e5a
Organization: Department of the Interior
Data release for "Shear Failure of a Granite Pin Traversing a Sawcut Fault"

Fault heterogeneities such as bumps, bends, and stepovers are commonly observed on natural faults but challenging to recreate under controlled laboratory conditions. We study deformation and microseismicity of a 76 mm-diameter Westerly granite cylinder with a sawcut fault with known frictional properties. An idealized asperity is added by emplacing a precision-ground 21 mm-diameter solid granite dowel that crosses the center of the fault at right angles. This intact granite ‘pin’ provides a strength contrast that resists fault slip. Upon loading to 80 MPa in a triaxial machine, we first observed a M -4 slip event that ruptured the sawcut fault, slipped 40 um, but was halted by the granite pin. With continued loading, the pin failed in a swarm of thousands of M -6 to M -8 events known as acoustic emissions (AEs). Once the pin was fractured to a critical point, it permitted complete rupture events (M -3) on the sawcut fault (stick-slip instabilities). Subsequent slip events were preceded by clusters of foreshock-like AEs, all located on the fault plane, and the spatial extent of the foreshock clusters is consistent with our estimate of a critical nucleation dimension h*. We also identified an aseismic zone on the fault plane surrounding the fractured rock pin. A post-mortem analysis of the sample showed a thick gouge layer where the pin intersected the fault, suggesting that dilatancy of this gouge propped open the fault and prevented microseismic events in its vicinity. Recorded microseismicity separates into three categories: slip on the sawcut fault, fracture of the intact rock pin, and off-fault seismicity associated with pin-related rock joints. We found that pin fracture events were exclusively implosive (anticrack) even though the shear process zone was overall dilatant. This shows how aseismic effects can lead to unexpected seismic manifestations of certain faulting processes.

Tags: acoustic-emission, biota, faulting, focal-mechanism, moment-tensor, usgs-5ab4401ae4b081f61ab5e92c
Organization: Department of the Interior
Susquehanna River Basin freshwater mussel surveys:  2008-2015

Data are included for two types of field surveys conducted for freshwater mussels throughout the Susquehanna River Basin (and one site in the Potomac River Basin) in the Mid-Atlantic region of the United States from 2008-2010.  Timed search (qualitative) surveys were conducted in consecutive ~200 meter sections of river (at least 8 in each stream).  The number of mussels of each species and associated search time were recorded for each survey section to determine a catch per unit effort (CPUE; number of individuals found per person hour).  Within qualitatively surveyed areas, one ~200 meter section of stream was selected in which to conduct quantitative surveys to estimate mussel abundance, assess presence of juvenile mussels, and quantify population demographics.  At each survey site, a subset of ~30 Elliptio complanata was haphazardly selected and retained for shell thin-sectioning and age determination.  Two sites (Pine Creek and Buffalo Creek) were resurveyed both qualitatively and quantitatively in 2014 and 2015 after experimental re-introduction of the American eel (Anguilla rostrata), a documented host fish for E. complanata.

Tags: aquatic-biology, mollusks, potomac-river, susquehanna-river, usgs-5ab3f839e4b081f61ab5e540
Organization: Department of the Interior
Target-Chemical Concentrations, Exposure Activity Ratios, and Bioassay Results for Assessment of Mixed-Organic/Inorganic-Chemical Exposure in USA Tapwater, 2016

Chemical and biological concentration results, quality assurance and quality control and statistical summaries from 26 tapwater samples, collected from paired residential and work place sites in 11 states in 2016. Samples were analylzed at U.S. Geological Survey and U.S. Environmental Protection Agency laboratories.

Tags: biological-activity, california, colorado, contaminant-mixtures, discrete-samples, florida, human-health-exposure, inorganic-compounds, iowa, kansas, michigan, new-jersey, oklahoma, oregon, organic-compounds, pesticides, pharmaceuticals, point-of-use-drinking-water, south-carolina, tapwater, united-states, usgs-5ab3d60be4b081f61ab5e3d4, virginia
Organization: Department of the Interior
Probabilistic estimates of landscape change in Alaska (1984 to 2015)

Contemporary climate change in Alaska has resulted in amplified rates of press and pulse disturbances that drive ecosystem change with significant consequences for socio-environmental systems. Despite the vulnerability of Arctic and boreal landscapes to change, little has been done to characterize landscape change and associated drivers across northern high-latitude ecosystems. Here we characterize the historical sensitivity of Alaska’s ecosystems to environmental change and anthropogenic disturbances using expert knowledge, remote sensing data, and spatiotemporal analyses and modeling. Time-series analysis of moderate– and high-resolution imagery was used to characterize land and water-surface dynamics across Alaska. Some 400,000 interpretations of ecological and geomorphological change were made using historical air photos and satellite imagery, and corroborate land surface greening, browning, and wetness/moisture trend parameters derived from peak-growing season Landsat imagery acquired from 1984 to 2015. The time series of change metrics, together with climatic data and maps of landscape characteristics, were incorporated into a modeling framework for mapping and understanding of drivers of change throughout Alaska. According to our analysis, approximately 13% (~174,000±8700 km2) of Alaska has experienced change in the last 32 years (±95% confidence intervals).

Tags: biota, change-processes, ecosystem, erosion, glacier-retreat, lacustrine-dynamics, timber-harvesting, usgs-5ab3a343e4b081f61ab5e2f6, wildfire
Organization: Department of the Interior
Point shapefile of continuous resistivity profiling data below the sediment water interface processed with a varying water conductivity value from Indian River Bay, Delaware, on U.S. Geological Survey Field Activity 2010-006-FA in April 2010 (MRGWCON_ALLXYZRES.SHP, Geographic, WGS 84)

A geophysical survey to delineate the fresh-saline groundwater interface and associated sub-bottom sedimentary structures beneath Indian River Bay, Delaware, was carried out in April 2010. This included surveying at higher spatial resolution in the vicinity of a study site at Holts Landing, where intensive onshore and offshore studies were subsequently completed. The total length of continuous resistivity profiling (CRP) survey lines was 145 kilometers (km), with 36 km of chirp seismic lines surveyed around the perimeter of the bay. Medium-resolution CRP surveying was performed using a 50-meter streamer in a bay-wide grid. Results of the surveying and data inversion showed the presence of many buried paleochannels beneath Indian River Bay that generally extended perpendicular from the shoreline in areas of modern tributaries, tidal creeks, and marshes. An especially wide and deep paleochannel system was imaged in the southeastern part of the bay near White Creek. Many paleochannels also had high-resistivity anomalies corresponding to low-salinity groundwater plumes associated with them, likely due to the presence of fine-grained estuarine mud and peats in the channel fills that act as submarine confining units. Where present, these units allow plumes of low-salinity groundwater that was recharged onshore to move beyond the shoreline, creating a complex fresh-saline groundwater interface in the subsurface. The properties of this interface are important considerations in construction of accurate coastal groundwater flow models. These models are required to help predict how nutrient-rich groundwater, recharged in agricultural watersheds such as this one, makes its way into coastal bays and impacts surface water quality and estuarine ecosystems. For more information on the survey conducted for this project, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2010-006-FA.

Tags: agi-supersting, bathymetry, cmgp, coastal-and-marine-geology-program, continuous-resistivity-profiling, crp, delaware, elevation, field-activity-number-2010-006-fa, geoscientificinformation, geospatial-datasets, groundwater, holts-landing, indian-river-bay, indian-river-inlet, info-bank-id-k-6-10-dl, location, lowrance-gps, navigation, north-america, north-atlantic-ocean, oceans, open-file-report-2011-1039, piney-neck, point-shapefile, processed-data, r-v-knob, rosedale-beach, submarine-groundwater, sussex-county, u-s-geological-survey, united-states, usgs, usgs-5ab33799-5075-4ea7-90f0-7e8532679ed5, whcmsc, woods-hole-coastal-and-marine-science-center
Organization: Department of the Interior
Wetland characteristics from the Prairie Pothole Region of the Williston Basin (2014-2016)

This dataset provides a compilation of the wetland characteristics, water quality, and aquatic macroinvertebrate community metric data collected from 159 wetlands in the Prairie Pothole Region of Montana and North Dakota.

Tags: biota, ecology, energy-development, energy-resources, montana, north-dakota, prairie-pothole-region, usgs-5ab2cc56e4b081f61ab4626e, wetland, williston-basin
Organization: Department of the Interior
Macroinvertebrate data from the Prairie Pothole Region of the Williston Basin (2014-2016)

This dataset contains aquatic macroinvertebrate data collected from 159 wetlands in the Prairie Pothole Region of Montana and North Dakota.

Tags: biota, ecology, energy-development, energy-resources, montana, north-dakota, prairie-pothole-region, usgs-5ab2cc1fe4b081f61ab46269, wetland, williston-basin
Organization: Department of the Interior
Effects of wind-energy facilities on breeding grassland bird distributions - data release

This data release contains breeding-bird densities in native mixed-grass prairie collected from 2003 to 2012 at and adjacent to wind farms in North and South Dakota, USA, for one year prior to turbine construction and several years post-construction. One dataset contains breeding-bird densities per 100 ha by distance from turbines for categories of 0-100 m, 100-200 m, 200-300 m, and greater than 300 m from turbines and for reference (i.e., control) sites. A second dataset contains breeding-bird density overall for turbine and reference sites, without the distance-category breakdown. A third dataset contains measurements that characterize average vegetation structural measurements on each study plot. This data release supports the following manuscript:  Shaffer, J.A., and D. A. Buhl.  2016. Effects of wind-energy facilities on breeding grassland bird distributions. Conservation Biology 30:59-71. doi:10.1111/cobi.12569.

Tags: biota, birds, displacement, energy-resources, grassland-birds, grassland-ecosystems, north-dakota, renewable-energy-resources, south-dakota, usgs-5ab2b268e4b081f61ab46162, wind-energy
Organization: Department of the Interior