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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Relationships Among Agricultural Data Sources of Conservation Practice Implemented in the Chesapeake Bay Watershed Relationships Among Agricultural Data Sources of Conservation Practice Implemented in the Chesapeake Bay Watershed
Through data sharing agreements with Federal and State agencies, the U.S. Geological Survey (USGS) collects time-series of environmental management practice data to inform studies that guide resource management decisions. These data include agricultural conservation practices, best management practices (BMPs), and pollution control strategies in the Chesapeake Bay watershed. This data...
Environmental DNA and qPCR data for an algal bloom in Kabetogama Lake, northern Minnesota, 2021 Environmental DNA and qPCR data for an algal bloom in Kabetogama Lake, northern Minnesota, 2021
This data release provides phytoplankton environmental DNA data and cyanotoxin gene qPCR data from an algal bloom at Ash River Boat Docks on Kabetogama Lake, Voyageurs National Park, Minnesota, USA (USGS site ID 482603092511801) collected in 2021 and analyzed by the commercial laboratory Jonah Ventures. We sampled cyanobacteria over a 24-hour period at Ash River Boat Docks in Kabetogama...
Sediment grain-size data from the Klamath River estuary, California Sediment grain-size data from the Klamath River estuary, California
This data release includes grain-size measurements on sediment samples collected from the substrate surface and uppermost 10 cm of sediment deposits in the Klamath River estuary, northern California. Samples were collected using a BMH-60 bed-material sampler deployed from a boat, or by hand trowel from subaerial or shallow-water (less than 0.5 m water depth) regions along the estuary...
In situ Geochemical Data for Detrital and Porphyry-Related Magnetite from the Taurus Porphyry Cu Deposit and Environs, Alaska, United States In situ Geochemical Data for Detrital and Porphyry-Related Magnetite from the Taurus Porphyry Cu Deposit and Environs, Alaska, United States
This data release comprises geochemical point analyses of magnetite by electron probe microanalyzer (EPMA) and sample imagery acquired by a combination of scanning electron, reflected light, and transmitted light microscopy. Analyzed elements include Fe, Ti, Al, Mn, Mg, V, Si, Ni, Cr, and Ca. Samples are from the Taurus porphyry Cu-Mo(-Au) deposit in the Yukon-Tanana upland of eastern...
(U-Th)/He Dates of Detrital Magnetite from Streams Draining the Taurus Porphyry Cu Deposit, Alaska, United States (U-Th)/He Dates of Detrital Magnetite from Streams Draining the Taurus Porphyry Cu Deposit, Alaska, United States
This data release contains 54 (U-Th)/He dates acquired from detrital magnetite in stream sediments adjacent to the Taurus Porphyry Cu-Mo(-Au) deposit in eastern interior Alaska's Yukon-Tanana Upland. Measured parameters include Helium-4, Uranium-238, Thorium-232, measured grain geometry factors, and all associated analytical uncertainties. Final (U-Th)/He dates along with uncertainties...
Length and mass measurements for a clutch of Burmese python hatchlings from southern Florida including observations of multi-embryo eggs Length and mass measurements for a clutch of Burmese python hatchlings from southern Florida including observations of multi-embryo eggs
Demographic and morphological data from an adult female Burmese python and a clutch of hatchlings produced July 2024 in Big Cypress National Preserve in southern Florida.