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Field measurements of flow depth and optical image sequences acquired from the Salcha River, Alaska, on July 25, 2019 Field measurements of flow depth and optical image sequences acquired from the Salcha River, Alaska, on July 25, 2019
This data release includes field measurements of flow depth and optical image sequences acquired from the Salcha River in Alaska on July 25, 2019. These data were used to develop and test a spectrally based remote sensing technique for estimating water depth from passive optical image data. The purpose of this study was to assess the feasibility of inferring water depths from optical...
Thin section images of drill core from the Crescent Creek area in the Stillwater Complex, Montana Thin section images of drill core from the Crescent Creek area in the Stillwater Complex, Montana
This dataset includes photographic images of thin sections of drill core from the Stillwater Complex, Montana, along with a shapefile representing the location of the drill hole. The core was drilled in order to study contact-type copper and nickel sulfide mineralization in the Stillwater Complex. The images of the entire thin section, both in plane- and cross-polarized light, were taken...
Non-linear baseflow separation model with parameters and results (ver. 3.0, December 2025) Non-linear baseflow separation model with parameters and results (ver. 3.0, December 2025)
This data release provides source code and an R workspace with functions comprising a non-linear baseflow separation model, calibrated values of parameters and estimates of the baseflow component of daily streamflow at selected streamflow gages. Parameter values were determined by calibration of the model. Estimates of the baseflow component include daily values and the total baseflow as...
Water quality and seepage estimates collected at Lake Spokane, WA, 2016-2019 Water quality and seepage estimates collected at Lake Spokane, WA, 2016-2019
Shallow nearshore groundwater chemistry and estimates of groundwater seepage were collected across 21 locations along Lake Spokane, WA, beginning in October 2016 and ending in October 2019. Groundwater chemistry was collected using temporary mini-piezometers and seepage rates from Lee-type seepage meters. Sample locations are divided into two distinct types: Core sites, where seepage...
Ploidy and genome size estimates of artificially produced larval pallid sturgeon, Scaphirhynchus albus Ploidy and genome size estimates of artificially produced larval pallid sturgeon, Scaphirhynchus albus
Data consist of flow cytometry files (.FCS) that were generated in the analysis of larval pallid sturgeon specimens. Nuclei from produced larval sturgeon somatic cells were analyzed using flow cytometry to estimate genome size and assign ploidy. Freshly collected rainbow trout (Oncorhynchus mykiss), largemouth bass (Micropterus salmoides), or pallid sturgeon blood were used as external...
Geochemical Data for Illinois Basin Coal Samples, 2015-2018 (ver. 1.1, March 2021) Geochemical Data for Illinois Basin Coal Samples, 2015-2018 (ver. 1.1, March 2021)
Researchers at the U.S. Geological Survey (USGS) and their collaborators conducted a study of the geochemical properties of coals currently produced for electric power generation in the Illinois Basin in Illinois and Indiana. The study follows from recommendations by an expert panel for the USGS to investigate the distribution and controls of trace constituents such as mercury (Hg) in...