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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Aeolian sediment-trap data from the Colorado River corridor in Grand Canyon National Park, Arizona Aeolian sediment-trap data from the Colorado River corridor in Grand Canyon National Park, Arizona
Samples of aeolian (wind-transported) sediment were collected between 2003 and 2010 at multiple locations along the Colorado River corridor within Grand Canyon National Park, Arizona. At each site, sediment being actively transported by wind were collected using a set of four vertically stacked passive samplers (Big Spring Number Eight [BSNE] sand traps). Sediment samples were collected...
Substrate Imagery Classifications for Lake Trout Spawning Habitat in Lake Ontario, 2023-2024 Substrate Imagery Classifications for Lake Trout Spawning Habitat in Lake Ontario, 2023-2024
This dataset is the result of international collaborative efforts by the United States Geological Survey, the United States Fish and Wildlife Service, the New York State Department of Environmental Conservation, the Ontario Ministry of Natural Resources and Forestry, and the Canadian Department of Fisheries and Oceans. These data provide substrate information along the shoreline of Lake...
USGS Isotope: A Database of Radiogenic and Stable Isotopic Data USGS Isotope: A Database of Radiogenic and Stable Isotopic Data
USGS Isotope is a database of compiled radiogenic and stable isotopic data from rocks and critical mineral deposits. The data set contains published elemental concentrations, isotopic ratios, analytical information, sample metadata including location, and source citations. Analytical techniques represented include Sm-Nd, U-Th-Pb, Rb-Sr, Lu-Hf, Re-Os, O, and S isotopic systems. Data...
Biological data associated with skin and liver neoplasm monitoring at the Sheboygan River and Lower Green Bay/Fox River Areas of Concern, Wisconsin, 2021 Biological data associated with skin and liver neoplasm monitoring at the Sheboygan River and Lower Green Bay/Fox River Areas of Concern, Wisconsin, 2021
Datset includes necropsy-based observations including length, weight, sex, visible abnormalities; cellular or histopathological changes including neoplastic and preneoplastic skin and liver lesions; age; transcript abundance of hepatic genes associated with contaminant exposure, carcinogenesis, stress and immune responses and the white sucker hepatitis B virus. These were documented in...
Quantitative polymerase chain reaction data describing target gene silencing in the invasive common reed Phragmites australis subsp. australis using a leaf cutting bioassay Quantitative polymerase chain reaction data describing target gene silencing in the invasive common reed Phragmites australis subsp. australis using a leaf cutting bioassay
These data describe layered double hydroxide (LDH) mediated delivery of novel gene silencing agents (GSAs) in leaf tissue of the invasive common reed Phragmites australis ssp. australis. Double-stranded and hairpin RNAs were designed and synthesized to target paralogous genes coding for phytoene desaturase (PDS) and 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS). A leaf cutting...
Polar Bear (Ursus maritimus) Genetic Data from the Chukchi Sea Polar Bear (Ursus maritimus) Genetic Data from the Chukchi Sea
This data set provides polar bear (Ursus maritimus) microsatellite genotypes derived from 21 loci (CPH9, CXX20, CXX110, CXX173, G1A, G10B, G10C, G1D, G10H, G10J, G10L, G10M, G10P, G10U, G10X, Mu26, Mu50, Mu51, Mu59, MSUT-2, REN145P07). Blood serum and hair samples for microsatellite genetic analysis were collected from polar bears from the Chukchi Sea between 1986 and 2019. Serum samples...