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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Southern Beaufort Sea Polar Bear Hemoglobin A1c Data Southern Beaufort Sea Polar Bear Hemoglobin A1c Data
This dataset is one table with demographic, morphometric, and blood analyte measurements from whole blood and serum samples taken from a subset of polar bears sampled in Alaska's southern Beaufort Sea during 1989-2012. The measured blood analytes include: blood urea nitrogen, creatinine, glucose, total protein, hemoglobin, red blood cell count, packed cell volume, and hemoglobin A1c...
Watershed landscape data used in the dynamic total nitrogen and total phosphorus SPARROW models developed for watersheds draining to Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2020 Watershed landscape data used in the dynamic total nitrogen and total phosphorus SPARROW models developed for watersheds draining to Puget Sound and the Strait of Juan de Fuca, Washington, 2005 – 2020
This data release contains the watershed ancillary data that were used as input for a set of dynamic Spatially Referenced Regression On Watershed attributes (SPARROW) models for watersheds draining to Puget Sound and the Strait of Juan de Fuca, Washington for the years 2005 - 2020. The SPARROW models were used to estimate mean seasonal total nitrogen and total phosphorous conditions and...
Channel Mapping of the Colorado River in Grand Canyon National Park, Arizona - April 2011, river miles 61 to 88 — Data Channel Mapping of the Colorado River in Grand Canyon National Park, Arizona - April 2011, river miles 61 to 88 — Data
Bathymetric, topographic, and grain-size data were collected in April 2011 along a 27-mi (43.5 – km) reach of the Colorado River in Grand Canyon National Park, Arizona. The study reach begins at river mile 61.1, about 0.6 -mi (1 –km) above the confluence of the Colorado and Little Colorado Rivers and ends at river mile 88.1 at the upstream boundary of the Bright Angel Rapid (Phantom...
6PPD-quinone concentrations in the Sacramento-San Joaquin Delta, California, 2018-2024 6PPD-quinone concentrations in the Sacramento-San Joaquin Delta, California, 2018-2024
The Sacramento-San Joaquin Delta is a crucial river delta that supplies a significant portion of California's freshwater for agricultural and residential use and serves as critical habitat for numerous state and federally listed species of concern. In several areas, urban stormwater drains discharge directly into the Delta. 6PPD-quinone (6PPD-Q, 2-anilo-5-[(4-methylpentan-2- yl)amino...
An Updated Catalog of Low-Frequency Earthquakes Along the San Andreas Fault Near Parkfield, California An Updated Catalog of Low-Frequency Earthquakes Along the San Andreas Fault Near Parkfield, California
SUMMARY This Data Release contains an updated version of the San Andreas catalog of low-frequency earthquakes (LFEs) originally published here: Shelly, D. R. (2017), A 15 year catalog of more than 1 million low-frequency earthquakes: Tracking tremor and slip along the deep San Andreas Fault, J. Geophys. Res. Solid Earth, 122, 3739–3753, doi:10.1002/2017JB014047. This updated catalog...
Correlation-derived seismic phase arrival times from matched-filter studies of Yellowstone (Wyoming) 2017, Kilauea volcano (Hawaii) 2018, and Ridgecrest (California) 2019: A dataset for developing phase-picking neural networks Correlation-derived seismic phase arrival times from matched-filter studies of Yellowstone (Wyoming) 2017, Kilauea volcano (Hawaii) 2018, and Ridgecrest (California) 2019: A dataset for developing phase-picking neural networks
This dataset contains correlation-derived seismic phase arrival times from three different studies: 1. Maple Creek Earthquake Swarm, Yellowstone, Wyoming, June 11 to September 6, 2017: Shelly, D. R., & J. L. Hardebeck (2019). Illuminating faulting complexity of the 2017 Yellowstone Maple Creek earthquake swarm. Geophysical Research Letters, 46, 2544– 2552. https://doi.org/10.1029...