All Data

The U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center (SPCMSC) conducted research to quantify bathymetric changes in the Northern Florida Keys from Triumph Reef to Pickles Reef during two time periods, 1934 to 2002 and 2002 to 2016, within a 234.2 square-kilometer area. USGS staff calculated changes in seafloor elevation for both time periods using historical

The dataset lists specific activities of Cesium-137 in disintegrations per minute per gram (dpm per g) from 21 samples in the upper 33 centimeters of sediment core 22KAR-21A collected in Karluk Lake, Kodiak Island, Alaska.

These datasets contain information on the probabilities of storm-induced erosion (collision, overwash and inundation) on sandy beaches along the U.S. Gulf coast of Texas, Louisiana, Mississippi, and Alabama during hurricane impact conditions of Hurricanes Laura and Delta in 2020. The analysis is based on a storm-impact scaling model that uses observations of dune morphology combined with

Microplastics (MPs) are an environmental concern. They can interact with other contaminants and pose new threats to organisms. We assessed the effect MPs on silver (Ag) bioaccumulation in the filter-feeding zooplankton Daphnia magna exposed to Ag nanoparticles at environmentally relevant concentrations.

This data release contains the concentration results of per- and polyfluoroalkyl substances (PFAS) collected in fish tissue and whole blood, bed sediment and biofilm samples from water bodies in and surrounding the Little Bighorn River (LBHR) in Montana in July 2023. A total of 29 filets and whole blood samples were collected from 10 brown trout, 10 catfish, 6 rock bass, and 3 goldeye...

This product suite maintains LANDFIRE's ongoing goal to release annual updates every year that are current to the previous year. This means LF 2024 accounts for disturbances up through Fiscal Year 2024 and is being released in 2025. The releases are intended to provide critical, up-to-date information ahead of the fire season for areas of the United States prone to large devastating...

This data release contains the observed reproductive status and estimated den entrance and emergence data for 114 radio-marked female grizzly bears and the estimated birth dates of offspring for four populations in North America collected from 2011-2021. The studied populations inhabited the Greater Yellowstone Ecosystem, Northern Continental Divide Ecosystem, Selkirk and Cabinet-Yaak...

This model archive summary (MAS) and associated model calibration dataset documents the suspended-sediment concentration (SSC) model developed to compute 15-minute, near-real-time SSC at U.S. Geological Survey (USGS) streamgage station 06329500, Yellowstone River near Sidney, Montana (MT) for calendar years 2022-2024 and is the model currently in use. This model is specific to USGS site...

This model archive summary (MAS) and associated model calibration dataset documents the suspended-sediment concentration (SSC) model developed to compute 15-minute, near-real-time SSC at U.S. Geological Survey (USGS) streamgage station 06329500, Yellowstone River near Sidney, Montana (MT) for calendar years 2017-2021. This model is specific to USGS site 06329500, Yellowstone River near...

This dataset contains data from a capture-mark-recapture survey of four species of native treefrogs across four sites in Bayou Teche National Wildlife Refuge, Louisiana.

This dataset contains results of generalized least-squares (GLS) regression for 63 streamflow gaging stations (streamgages) operated by the U.S. Geological Survey (USGS) on urban streams in Washington D.C. and parts of Delaware, Maryland, New Jersey, Pennsylvania, and Virginia. This dataset was created to support the Washington D.C. StreamStats project funded by the Washington D.C...

This data release provides annual values for the 19 standard bioclimatic variables (BIO1–BIO19) for the Contiguous United States, computed from the downscaled CMIP6-LOCA2 temperature and precipitation dataset for 1950–2100. Daily maximum temperature, minimum temperature, and precipitation from 27 CMIP6-LOCA2 GCMs were processed using the Python xclim library to generate bioclimatic...