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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Satellite-derived spectral indices to characterize wildfire impacts on forested sites in Glacier National Park, Montana
The dataset contains spectral indices values calculated from Landsat imagery, normalized difference vegetation index (NDVI) and delta normalized burn ratio (NBR, deltaNBR). The spectral indices were computed for 1472 forested sites in the Glacier National Park, Montana, over the 1984-2021 period, in areas that were burned or not burned during the Robert Fire of 2003.
Chirp seismic reflection and navigation data collected in Chesapeake Bay during USGS Field Activity 2022-020-FA
In July 2022, the U.S. Geological Survey (USGS) and the University of Maryland's Chesapeake Biological Laboratory conducted a study, USGS Field Activity Number (FAN) 2022-020-FA, in Chesapeake Bay to quantify greenhouse gas fluxes from the largest estuary in the United States. The team investigated the environmental factors that control the distribution and exchange of methane and carbon...
Geochemical Data for Bulk Samples and Their Derivative Size and Density Fractions from Placer Tailings in Alaska
This data release contains elemental concentration data from geochemical analysis of eight bulk placer tailing sediment samples and of size and density fractions derived from those eight samples. All placer tailing material collected for this data release originated from samples that were collected in Alaska. The samples collected from one fifth yard of tailings material, sieved to -1/4...
Buff-breasted Sandpiper surveys during northward migration in Texas (2016)
These data were collected using distance sampling methods (point counts) and visual assessment of land cover and habitat along pre-determined driving routes in Texas during April and May 2016.
Two-stage models improve machine learning classifiers in wildlife research: A case study in identifying false positive detections of Ruffed Grouse
Autonomous recording units are increasingly being used to monitor wildlife on large geographic and temporal scales, paired with machine learning (ML) to automate detection of wildlife. However, false positive detections from ML classifiers can result in erroneous ecological models that can lead to misguided management and conservation actions. We used a two-stage general approach to...
Great Lakes-Wide Dataset of Historical Coregonine Stocking Events
This dataset is the result of coordinated efforts to compile data associated with stocking events for whitefishes and ciscoes (members of the Coregoninae subfamily) of Great Lakes origin. The dataset includes more than 4,700 records associated with coregonine stocking, from over 150 information sources, spanning the years 1870 - 2022. The compiled information includes species, quantities...
U-Pb Ages, Neodymium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Titanite and Apatite from Interior and Southcentral Alaska
This dataset contains U-Pb isotopic data and ages plus trace element concentrations from titanite and apatite in igneous rocks collected for USGS projects in the Alaska Range, Yukon Tanana uplands of eastern Alaska, and a study of ophiolites in Alaska. A subset of analyses also includes simultaneous measurements of Sm-Nd isotope ratios. For this subset, split-stream configuration...
Argon dates, paleomagnetic directions, and compositions of Pliocene to Pleistocene mafic volcanic rocks in the Goat Rocks area, Cascade Range, Washington State
The Goat Rocks volcanic complex is a major andesitic locus in the southern Washington Cascade Range that persisted for approximately 3 million years (3.1 Ma to 115 ka) while coeval mafic volcanoes erupted on its periphery (Wall et al., 2018; Wall, 2022). The datasets presented in this data release were collected for a study that focuses on the mantle origin of the mafic magmas and their...
Phosphorus, nitrogen, chloride, and suspended-sediment load estimates for the Great Lakes Restoration Initiative tributary monitoring network: Water years 2011–2023
Phosphorus, nitrogen, chloride, and suspended-sediment loads, in 24 U.S. tributaries of the Great Lakes, were estimated using U.S. Geological Survey (USGS) data from the Great Lakes Restoration Initiative (GLRI) monitoring program for the period Oct 2010 through Sept 2023 (USGS water years 2011-23). Specific water-quality constituents include total phosphorus, orthophosphate, particulate...
Gulf of America Non-spinose Planktic Foraminifera Culture Study From 2020-2022
This pilot study was intended to test whether Globorotalia truncatulinoides (G. truncatulinoides) and Globorotalia menardii (G. menardii) specimens could be successfully harvested from offshore plankton tow samples and kept alive in a laboratory at the U.S Geological Survey St. Petersburg Coastal and Marine Science Center (USGS SPCMSC). The methodologies and resources which were used to...
Satellite-derived shorelines from CoastSeg in multiple U.S. locations (1984-2023)
This dataset contains shoreline positions derived from available satellite imagery for multiple locations (Barter Island, Alaska; Elwha, Washington; Cape Cod, Massachusetts; Madeira Beach, Florida; and Rincon, Puerto Rico) across the United States for the time period 1984 to 2023, to support ongoing remote-sensing development and validation efforts.
Breeding Shorebird Surveys on the Yukon-Kuskokwim Delta, Alaska, 2015-2016
We conducted ground-based surveys at 589 randomly selected 16-ha plots on the Yukon-Kuskokwim Delta, Alaska during 2015-2016. The plots were selected using a stratified random sampling plan in an area of 35,769 square km divided into 8 physiographic strata. The population totals from the stratified random design estimators were adjusted using detection ratios derived with a double...