Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
Filter Total Items: 12872
Data Used to Assess the Hydrogeologic Framework with Emphasis on the Ogallala and Edwards-Trinity Aquifers, in and Near Gaines, Terry, and Yoakum Counties, Texas, 2018
More than 11,500 well records, such as geophysical logs, drilling descriptions, and published hydrogeologic framework information, were evaluated to help characterize the framework of hydrogeologic units in and near Gaines, Terry, and Yoakum Counties, Texas. Additional geophysical data were collected to improve the spatial coverage across the study area and to reduce uncertainty with regard to hyd
Eklutna River at Glenn Highway Bridge, Alaska Cross-Section Survey, 2016 and 2017
This dataset consists of survey data, plots, photos, and a photo index from a cross section survey of the Eklutna River at the Glenn Highway bridge in Alaska. The cross sections were surveyed in 2016 and 2017 using a total station, then adjusted to match datums for a Municipality of Anchorage orthophoto and Alaska Department of Transportation and Public Facilities bridge as-built elevations.
Current-use pesticides and emerging amphibian pathogens in natural ponds, excavated ponds, and stormwater basins from 24 sites varying in land-use classifications throughout the New Jersey Pinelands, 2014-2016
Water, sediment, anuran food (leaf litter and detritus) and whole body larval amphibian composites were analyzed for over 100 current-use pesticides from 24 wetlands representing land-use gradients in the New Jersey Pinelands, USA during 2014-2016. Emerging amphibian pathogens, Ranavirus and Batrachochytrium dendrobatidis (Bd) were also assessed in individual larvae at the 24 wetlands. Tables in t
Datasets and metadata for estimates of nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology
This USGS data release contains datasets, metadata, and figures associated with estimating nitrate loads and yields from groundwater to streams in the Chesapeake Bay watershed based on land use and geology.
There are three shapefiles with associated metadata and figures representing the shapefiles:
Catchments_GWcontribN.shp: NHDPlus catchment estimates of groundwater contribution of nitra
Bear capture recapture sampling in Glacier National Park, Montana, 2004
Text files containing detection events from genetic sampling sites associated with the unique identifier of American black bears in Glacier National Park, Montana, USA, 2004. Data is formatted for spatial capture recapture data analysis.
West Twin Creek Alaska Subsurface Bromide Tracer Experiment, 2015
This data was produced as part of a subsurface tracer experiment performed on a boreal hillslope in July, 2015. The data is separated into three files: 'Well Data.csv' includes the location and depth of well screens, concentrations of the bromide tracer in time, saturation state of the subsurface at the wells, ground cover at the wells, and depth of the organic-mineral boundary which controls shal
Arctic Coastal Plain Seasonal Lake Drainage, Water Temperature, and Solute and Nutrient Concentrations, 2011 - 2014
This data release includes remotely sensed lake and lake chemistry and water temperature data collected from 2011 to 2014) from a series of lakes on the Arctic Coastal Plain of Alaska. Most of the data is from two sites within the Chipp River Basin.
Groundwater-Level Altitudes and Long-term Groundwater-Level Changes in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas, 2018
The U.S. Geological Survey (USGS) in cooperation with the Harris-Galveston Subsidence District, City of Houston, Fort Bend Subsidence District, and Lone Star Groundwater Conservation District has produced this dataset of groundwater-level altitudes and groundwater-level altitude changes in the Chicot, Evangeline, and Jasper aquifers in the Houston-Galveston region, Texas. This dataset shows curren
Adaptive management in native grasslands managed by the U.S. Fish and Wildlife Service: Implications for grassland birds, 2011-2013 data release
This database contains records of grassland bird abundance and vegetation structure on tallgrass and mixed-grass prairies managed by the U.S. Fish and Wildlife Service (USFWS). Specifically, under the adaptive-management decision framework (Native Prairie Adaptive Management [NPAM] intiative), we surveyed breeding birds and sampled vegetation on 89 native prairie NPAM units managed by the U.S. Fis
Host Feeding Ecology and Trophic Position Significantly influence Isotopic discrimination between a Generalist Ectoparasite and its hosts: Implications for parasite host trophic studies
Despite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope analysis of consumers and their diets has been widely used in the study of food-webs for decades. However, the amount of information regarding parasite stable isotope ecology is limited, restricting the ability of ecologists to use stable
Data for Impacts of Alewife and White Perch Introductions on Rainbow Trout Growth in the Ashokan Reservoir, Catskill Mountains, NY
This dataset contains the results from aging and back-calculation of length-at-age of scale samples from 492 Rainbow Trout captured in the Ashokan Reservoir between 1952 and 2016. The first five columns contain collection information including an assigned fish number, the year and period of capture, the basin of the Ashokan Reservoir from which a fish was captured, and the length of the fish when
Differential Optical Absorption Spectroscopy data acquired at Mount Pagan volcano (Mariana Islands) on 6 April 2014
On 6 April 2014, a Differential Optical Absorption Spectroscopy (DOAS) instrument was used to measure the radiance of scattered solar radiation passing through the plume emitted from Mount Pagan volcano, Mariana Islands. Spectra were recorded in the ultraviolet (UV: 240 - 390 nm) wavelength range at 0.6 nm resolution. A scanner was used to scan the spectrometer's viewing direction vertically throu