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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Alaska Tephra Data, 2018 Alaska Tephra Data, 2018
This USGS Data Release presents major-oxide glass geochemical results from tephras erupted form Alaska volcanoes. This data set is in support of volcano hazard studies by the Alaska Volcano Observatory (AVO) where tephra (volcanic ash) deposits are used to assess eruption frequency, magnitude, and character of eruption. These data are part of a larger effort to identify and characterize...
Acoustic Doppler Current Profiler data collected in near Hammond Bay, Lake Huron, 2019 Acoustic Doppler Current Profiler data collected in near Hammond Bay, Lake Huron, 2019
This dataset records results from a bottom-deployed upward-looking Acoustic Doppler Current Profiler (ADCP, 600 kHz Workhorse Monitor, Teledyne RD Instruments, Poway, California) deployed during the summer of 2019 (late June until early August) near Hammond Bay, Lake Huron (45.5948 degrees north, -84.1542 degrees east). Data were collected in support of nearby Cladophora and benthic...
Chemical and isotopic data from wetland pond water samples collected in the Cottonwood Lake Study Area, Stutsman County, North Dakota, USA, 2015–2019 Chemical and isotopic data from wetland pond water samples collected in the Cottonwood Lake Study Area, Stutsman County, North Dakota, USA, 2015–2019
This U.S. Geological Survey data release contains chemical, isotopic, and physical data from wetland pond water samples collected at the Cottonwood Lake Study Area, Stutsman County, North Dakota, USA. Samples were collected monthly during the growing season (April or May through September) in 2015, 2016, 2017, and 2019 and in August 2018. Temperature, specific conductance, and pH were...
GIS Data for Geologic Map of the White Rock Canyon quadrangle, Carbon County, Wyoming GIS Data for Geologic Map of the White Rock Canyon quadrangle, Carbon County, Wyoming
This U.S. Geological Survey (USGS) data release provides a digital geospatial database for the geologic map of the White Rock Canyon quadrangle, Carbon County, Wyoming (Hyden and others, 1968). Attribute tables and geospatial features (points, lines and polygons) conform to the Geologic Map Schema (GeMS, 2020) and represent the geologic map as published in USGS Geologic Quadrangle Map GQ...
Model simulations of the January 15, 2022 Hunga Volcano eruption plume and deposit Model simulations of the January 15, 2022 Hunga Volcano eruption plume and deposit
This data release accompanies the publication below, and contains the data used in that publication. Mastin, L.G., Van Eaton, Alexa R., and Cronin, Shane, in press, Did steam boost the height and growth rate of the giant Hunga eruption plume? Bulletin of Volcanology. https://doi.org/10.1007/s00445-024-01749-1 Within this data release are two zip files: --Supplementary_tables.zip contains
Predictions of PFAS in groundwater used as a source of drinking water and related data in the conterminous United States Predictions of PFAS in groundwater used as a source of drinking water and related data in the conterminous United States
An extreme gradient boosting ensemble tree model predicting per- and polyfluoroalkyl substances (PFAS) occurrence in groundwater at the depths typical of the bottom of public and domestic drinking water supplies across the conterminous United States was developed. PFAS data used to train the model were collected between 2019 and 2022 by the U.S. Geological Survey National Water Quality...