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.
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Detections of burros from helicopter aerial surveys in the southwestern US, 2016-2018 Detections of burros from helicopter aerial surveys in the southwestern US, 2016-2018
Feral burros (Equus asinus) and horses (E. ferus caballus) inhabiting public land in the western United States are intended to be managed at population levels established to promote a thriving, natural ecological balance. Like many large ungulate populations, management agencies employ aerial surveys to obtain estimates of horse and burro population sizes. Double-observer sightability...
Riparian vegetation data downstream of Glen Canyon Dam in Glen Canyon National Recreation Area and Grand Canyon National Park, AZ from 2014 to 2019 Riparian vegetation data downstream of Glen Canyon Dam in Glen Canyon National Recreation Area and Grand Canyon National Park, AZ from 2014 to 2019
These data were collected by the Grand Canyon Monitoring and Research Center (GCMRC) to support riparian vegetation monitoring along the Colorado River between Glen Canyon Dam and the full pool level of Lake Mead. The objectives of the GCMRC riparian vegetation monitoring program are to annually measure and summarize the status (composition and cover) of native and non-native vascular...
Slow-moving landslides and subsiding fan deltas mapped from Sentinel-1 InSAR in the Glacier Bay region, Alaska and British Columbia, 2018-2020 Slow-moving landslides and subsiding fan deltas mapped from Sentinel-1 InSAR in the Glacier Bay region, Alaska and British Columbia, 2018-2020
This data release contains four GIS shapefiles, one Google Earth kmz file, and five metadata files that summarize results from Interferometric Synthetic Aperture Radar (InSAR) analyses in the Glacier Bay region of Alaska and British Columbia. The principal shapefile (Moving_Ground) and the kmz file (GBRegionMovingGround) contain polygons delineating slow-moving (0.5-6 cm/year in the...
Sedimentological data from the Pliocene Yorktown Formation, near Rushmere, Virginia Sedimentological data from the Pliocene Yorktown Formation, near Rushmere, Virginia
Data consist of grain-size distribution by weight in grams of samples collected from the lectostratotype of the Yorktown Formation at Rushmere, Virginia, and from Pipsico Boy Scout Camp, Spring Grove, Virginia. In total, data from 45 samples is included.
Planktonic foraminifer census data from type section of Yorktown Formation at Rushmere, Virginia, USA Planktonic foraminifer census data from type section of Yorktown Formation at Rushmere, Virginia, USA
Data consist of census counts of Pliocene planktonic foraminifera from the lectostratotype of the Yorktown Formation at Rushmere Virginia, Rice's Pit, Yorktown, and the type section of the Morgarts Beach Member at Morgarts Beach, Virginia. In total, counts of individuals from 12 samples and 25 species are included.
Pinyon-juniper basal area, climate and demographics data from National Forest Inventory plots and projected under future density and climate conditions Pinyon-juniper basal area, climate and demographics data from National Forest Inventory plots and projected under future density and climate conditions
These data were compiled to help understand how climate change may impact dryland pinyon-juniper ecosystems in coming decades, and how resource management might be able to minimize those impacts. Objective(s) of our study were to model the demographic rates of PJ woodlands to estimate the areas that may decline in the future vs. those that will be stable. We quantified populations growth...
Cole's Bayou Marsh Restoration (TV-63): 2018 land-water classification Cole's Bayou Marsh Restoration (TV-63): 2018 land-water classification
The Louisiana State Legislature created the Coastal Wetlands Planning, Protection and Restoration Act (CWPPRA) in order to conserve, restore, create and enhance Louisiana's coastal wetlands. The wetland restoration plans developed pursuant to these acts specifically require an evaluation of the effectiveness of each coastal wetlands restoration project in achieving long-term solutions to...
Absorbance and fluorescence measurements and concentrations of disinfection by-products in source water and finished water in the McKenzie River Basin, Oregon: 2012-2014 Absorbance and fluorescence measurements and concentrations of disinfection by-products in source water and finished water in the McKenzie River Basin, Oregon: 2012-2014
This data release contains the results from a study that characterized the concentration and quality of dissolved organic carbon (DOC) in the McKenzie River, a relatively pristine watershed in western Oregon, and its link to forming disinfection by-products (DBPs) in treated drinking water. The study aimed to identify the primary source(s) of DOC in source water for the Eugene Water and...
Data of the Hawaiian Volcano Observatory (HVO) Kīlauea Campaign Gravity Network (KCGN) Data of the Hawaiian Volcano Observatory (HVO) Kīlauea Campaign Gravity Network (KCGN)
Data Description Campaign microgravity surveys have been conducted at K?lauea, Hawai‘i (USA), since 1975 (Dzurisin and others, 1980) and, when combined with deformation measurements, enable insights into mass change within the volcano (Jachens and Eaton, 1980; Johnson, 1992; Kauahikaua and Miklius, 2003; Johnson and others, 2010; Bagnardi and others, 2014; Poland and others 2019). For...
Weekly estimates of the risk of avian influenza transmission from wild waterfowl to domestic poultry - Initial phase models Weekly estimates of the risk of avian influenza transmission from wild waterfowl to domestic poultry - Initial phase models
This data layer depicts the weekly estimates of the relative risk of avian influenza transmission from wild waterfowl to domestic poultry. These data represent an early phase of ongoing model development and the inclusion of additional parameters is upcoming.
Weekly relative effective waterfowl populations across the United States based upon predicted abundance and viral prevalence by species - Initial phase models Weekly relative effective waterfowl populations across the United States based upon predicted abundance and viral prevalence by species - Initial phase models
This data layer depicts the weekly relative effective waterfowl populations across the United States based upon predicted abundance and viral prevalence by species. These data have been produced to allow for visualization of how different factors impact transmission risk and may be advanced in future iterations to include additional species.
Relative susceptibility of poultry to the transmission of Avian Influenza from wild birds based upon poultry type and density Relative susceptibility of poultry to the transmission of Avian Influenza from wild birds based upon poultry type and density
This data layer depicts the relative susceptibility of poultry to the transmission of Avian Influenza from wild birds based upon poultry type and density for the contiguous United States.