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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Magnetotelluric data from the Clear Lake Region, Northern California Magnetotelluric data from the Clear Lake Region, Northern California
The Clear Lake Volcanic Field (CLVF) in northern California is a young (2 Ma-0.008 Ma) volcanic system that could be hazardous upon eruption. Magnetotellurics (MT) is a passive electromagnetic geophysical method that measures subsurface electrical resistivity by recording the Earth's electrical response to natural time varying magnetic fields. To further understand the magmatic system of...
Mercury in emergent odonates and midges of the Prairie Pothole wetlands of North Dakota, USA Mercury in emergent odonates and midges of the Prairie Pothole wetlands of North Dakota, USA
This data release is an extension of a previous data release (https://doi.org/10.5066/P971S7IV) that expands the collected data to include tissue mercury concentrations for adult aquatic insects emerging from wadable wetlands in cropland and grassland landscapes of the Prairie Pothole region (n = 15 wetlands in 2016). These data were collected at the same time as the other data (analyzed...
Elevation Data Across San Francisco Bay-Delta Wetlands Elevation Data Across San Francisco Bay-Delta Wetlands
This data release includes high resolution in-situ elevation data collected in wetlands and adjacent ecosystems throughout the San Francisco Bay from 2015 to 2024. Elevation data were collected using real-time kinematic global positioning system receivers.
Chemical and biological data from chronic bioassays with native Spea multiplicata exposed to field-collected water or sediment from the Pinyon Plain Mine containment pond in Arizona, USA, or single metals in water-only tests Chemical and biological data from chronic bioassays with native Spea multiplicata exposed to field-collected water or sediment from the Pinyon Plain Mine containment pond in Arizona, USA, or single metals in water-only tests
The dataset reports biological endpoints (survival, growth, developmental stage, and body burden of selected metals) for larval spadefoot toads (Spea multiplicata) in laboratory-based exposures to 1) field-collected water or sediment from a containment pond at the Pinyon Plain Mine in Arizona, USA, during its pre-production phase and 2) six concentrations of copper or cobalt in water...
Regional airborne electromagnetic and magnetic surveys of the Basin and Range Province in Nevada, Oregon, and California, 2022-2023 Regional airborne electromagnetic and magnetic surveys of the Basin and Range Province in Nevada, Oregon, and California, 2022-2023
Airborne electromagnetic (AEM) and magnetic survey data were collected from December 2022 through March 2023 over a distance of 11,079 line kilometers in western Nevada and eastern California; central Nevada; and northern Nevada and southeastern Oregon. These data were collected in support of the U.S. Geological Survey (USGS) Earth Mapping Resources Initiative (Earth MRI), which aims to...
Detection of Ortmanniana ligamentina male mitotype DNA from a mesocosm during a natural spawning event Detection of Ortmanniana ligamentina male mitotype DNA from a mesocosm during a natural spawning event
Data describe a mesocosm study for the detection of Mucket (Ortmanniana ligamentina) female and male mitotype environmental DNA (eDNA) during a spawning event. Water samples (approximately 1L) were collected every Monday and Thursday for 4 weeks during August 2021 from a pond located at Columbia Environmental Research Center containing O. ligamentina and analyzed for the presence of sex...