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: 16325
Conservation Genetics and Genomics of the Narrowly Endemic Island Marble Butterfly: Assessing Population Structure, Facilitating Supportive Breeding, and Identifying Adaptive Potential Conservation Genetics and Genomics of the Narrowly Endemic Island Marble Butterfly: Assessing Population Structure, Facilitating Supportive Breeding, and Identifying Adaptive Potential
The purpose of this study was to collect and analyze non-invasive DNA specimens from the endangered island marble butterfly (Euchloe ausonides insulanus) to assess population structure, identify adaptive potential, facilitate captive propagation, and support translocation planning. We used DNA extracted from meconium, exuviae, and natural mortalities to generate and test thirteen new
Digital database of a 3D Geological Model of the Powder River Basin and Williston Basin Regions, USA Digital database of a 3D Geological Model of the Powder River Basin and Williston Basin Regions, USA
This digital GIS dataset and accompanying nonspatial files synthesize model outputs from a regional-scale volumetric 3-D geologic model that portrays the generalized subsurface geology of the Powder River Basin and Williston Basin regions from a wide variety of input data sources. The study area includes the Hartville Uplift, Laramie Range, Bighorn Mountains, Powder River Basin, and...
Monthly twelve-digit hydrologic unit code aggregations of the WRF-Hydro modeling application with CONUS404BA Atmospheric Forcings, 2009-2021 (ver. 2.0, July 2025) Monthly twelve-digit hydrologic unit code aggregations of the WRF-Hydro modeling application with CONUS404BA Atmospheric Forcings, 2009-2021 (ver. 2.0, July 2025)
This data release contains key variables from the Weather Research and Forecasting Hydrological Modeling (WRF-Hydro) application forced with the CONUS404 climate forcing variable subset for hydrologic models that was downscaled to one-kilometer and bias-adjusted for precipitation and temperature (CONUS404BA) from water year 2010 through water year 2021 that are summarized to a monthly...
Digitized Legacy Maps of Surficial Geology and Morphology of the Central Arctic Coastal Plain, Alaska Digitized Legacy Maps of Surficial Geology and Morphology of the Central Arctic Coastal Plain, Alaska
This dataset represents a digitized version of the Rawlinson 1993 surficial geologic map of the Flaxman Island and Beechey Point quadrangles, and portions of the Mount Michelson and Harrison Bay quadrangles at 1:63,360 scale. In this newly digitized version of the map, the original maps were scanned, georeferenced, and projected into GIS. Approximately 100-200 typographic and labelling...
Precariously balanced rock data from northern New York and Vermont, USA Precariously balanced rock data from northern New York and Vermont, USA
This work describes observations of boulders and their pedestals at five sites in New York and Vermont, which are used to calculate scaling factors for the 2023 time-independent National Seismic Hazard Model site-specific hazard curves (Petersen, M.D., Shumway, A.M., Powers, P.M., Field, E.H., Moschetti, M.P., Jaiswal, K.S., Milner, K.R., Rezaeian, S., Frankel, A.D., Llenos, A.L. and...
Tennessee Karst Groundwater Dye Tracing Water Year 2023 Tennessee Karst Groundwater Dye Tracing Water Year 2023
Karst hydrologic systems are important resources in the state of Tennessee both as drinking water resources and as centers for possible biological diversity. These systems are susceptible to contamination due to the inherent connectivity between surface water and groundwater systems in karst systems. A partnership between the U.S. Geological Survey (USGS) and Tennessee Department of...