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Found 1729 dataset(s) matching "reference concentration".
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This data release includes new major and trace element geochemical data acquired by the U.S. Geological Survey (USGS) for igneous rocks in the Cripple Creek district in Colorado. Cripple Creek is...
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The map graphic image at https://www.sciencebase.gov/catalog/file/get/63140561d34e36012efa2b7f?name=arsenic_map.png illustrates arsenic values, in micrograms per liter, for groundwater samples...
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This data release is comprised of three tables containing cosmogenic beryllium-10 and aluminum-26 concentrations and related data from samples collected at four sites along the Charley River in...
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The accession contains chlorophyll a and phaeophytin data collected by Florida State University in the North American coastline for three time periods in 1986. First data set was collected in...
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Timeseries data from 'TAKU R NR JUNEAU AK (USGS 15041200)' (gov_usgs_nwis_15041200)
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Timeseries data from 'UNUK R BL BLUE R NR WRANGELL AK (USGS 15015595)' (gov_usgs_nwis_15015595)
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Timeseries data from 'SALMON R NR HYDER AK (USGS 15008000)' (gov_usgs_nwis_15008000)
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Timeseries data from 'ALSEK R AT DRY BAY NR YAKUTAT AK (USGS 15129120)' (gov_usgs_nwis_15129120)
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Timeseries data from 'STIKINE R NR WRANGELL AK (USGS 15024800)' (gov_usgs_nwis_15024800)
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This child data release includes hyperspectral and RGB images acquired from an Unmanned Aircraft System (UAS) during an experiment performed at the USGS Columbia Environmental Research Center,...
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During water years 2016–2023 (a water year is the period from October 1 to September 30 and is designated by the year in which it ends), the U.S. Geological Survey (USGS), in cooperation with the...
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This data release presents results of chemical analyses of groundwater sampled during summer and autumn of 2019 and spring of 2020 from 23 wells in the Great Miami buried-valley aquifer (GM-BVA)...
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Carbon dioxide partial pressure (pCO2) and total dissolved inorganic carbon (TCO2) measurements were made on seawater collected from 12 depths at oceanographic station QU39 in the northern Strait...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for the eastern half (Part 2) of the Island of Hawaiʻi, Hawaiʻi for a 2020 land-cover and a...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for Maui, Hawaiʻi for a 2020 land-cover and a set of four climate scenarios. The four climate...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for Kauaʻi, Hawaiʻi for a 2020 land-cover and a set of four climate scenarios. The four...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for the western half (Part 1) of the Island of Hawaiʻi, Hawaiʻi for a 2020 land-cover and a...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for Molokaʻi, Hawaiʻi for a 2020 land-cover and a set of four climate scenarios. The four...
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This shapefile represents the spatial distribution of mean annual water-budget components, in inches, for Lānaʻi, Hawaiʻi for a 2020 land-cover and a set of five climate scenarios. The five...
