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Identifying post-reservoir construction periods for monotonic trend analysis at streamgages in the United States

The U.S. Geological Survey (USGS) Water Resources Mission Area (WMA) is working to address a need to understand where the Nation is experiencing water shortages or surpluses relative to the demand for water need by delivering routine assessments of water supply and demand and an understanding of the natural and human factors affecting the balance between supply and demand. A key part of these nati

Computed Tomography (CT) scans of sediment cores collected from Montague Island, AK

This data release contains Computed Tomography (CT) scan images of sediment cores collected from Montague Island, in Prince William Sound, Alaska. Sediment cores were collected from lagoons uplifted >3 m in the 1964 earthquake along the coast of Montague Island and aid in interpreting changes in deposition environment over the past several thousand years, which may record evidence for past episode

Compilation of Geospatial Data (GIS) for the Mineral Industries of Select Countries in the Indo-Pacific

The U.S. Geological Survey (USGS) has compiled a geodatabase containing mineral-related geospatial data for 19 countries of interest in the Indo-Pacific region (area of study): Bangladesh, Bhutan, Brunei, Burma, Fiji, Malaysia, Mongolia, Nauru, New Caledonia, New Zealand, Papua New Guinea, Philippines, Singapore, Solomon Islands, South Korea (Republic of Korea), Sri Lanka, Taiwan, Timor-Leste, and

Sediment core data from offshore southern Cascadia during field activity 2019-643-FA

This data release contains sediment core data including core imagery, multi-sensor core logger (MSCL) data, and radiocarbon age data. Sediment cores were collected offshore northern California during U.S. Geological Survey cruise 2019-643-FA aboard the M/V Bold-Horizon. The cores were collected along with geophysical data to evaluate potential hazards (e.g., active fault systems, slope instabiliti

Bathymetry, backscatter intensity, seismic reflection, and benthic habitat data offshore of Arcata, California

Survey data collected for this data release were used to create maps of surficial geology and benthic habitat as part of the USGS California Seafloor Mapping Program, a collaboration with California State University Monterey Bay (CSUMB) and the National Oceanic and Atmospheric Administration (NOAA). Funding was provided by the California Ocean Protection Council. These data are intended to provide

Cactus Wren Invertebrate Diet Derived from Sequencing of Nestling Fecal Samples in San Diego County, California

This dataset contains the invertebrates (identified to Order and Family) present in Cactus Wren nestling fecal samples and found using DNA sequencing (metabarcoding) methods. Nestling fecal samples were collected from one or more handled nestlings per territory collected between April and July of 2015 through 2019 in San Diego, California. The steps to process these data are detailed in the Data Q

qPCR detection and quantitative results for Northern Pike (Esox lucius) from environmental (e)DNA samples collected along Miller Creek, Kenai Peninsula, Alaska in February and March of 2024

The dataset contains qualitative detection and quantitative results of Esox Lucius DNA in environmental (e)DNA water samples collected from Miller Creek, Alaska and analyzed with quantitative PCR.

NASA GIFT Iceland Highlands: 2019 and 2021 Askja Ground Penetrating Radar (GPR) and Observations

This data collection includes ground-penetrating radar (GPR) data and related observations collected from the NASA Goddard Instrument Field Team (GIFT) Expedition to the Icelandic Highlands in July-August 2019 and August 2021. This dataset includes observations at the Askja Volcano and caldera and Vikrahraun lava flow. GPR data were collected using Geophysical Survey Systems, Inc (GSSI) shielded b

Evaluating the impact of differences in remnant and reconstruction mycorrhizas on performance of conservative prairie plant species

This data record contains arbuscular mycorrhizal fungi (AMF) operational taxonomic unit (OTU) occurrences in native prairie plant roots collected from remnant prairies and reconstruction of tallgrass prairies in Minnesota and Iowa, from April-December of 2022. The research aims to improve prairie reconstruction methods using AMF to improve prairie plant performance, species diversity, and resistan

Eastern migratory monarch butterfly population estimates and associated early warning signals (2006-2022)

The long decline of the eastern migratory population of monarch butterflies (Danaus plexippus) appears to have abated in recent years and the population now persists at a much-reduced abundance. Stochastic variation in abundance typical of monarch butterflies, and other insects, places this population at heightened risk of quasi-extinction, a level of abundance below which recovery of the migrator

Diatom Data from Coastal Environments on Montague Island, Alaska

This dataset consists of fossil diatom counts from sediment cores collected in coastal environments on Montague Island, Alaska, and analyzed at Virginia Tech University.

Temperature and Discharge Data of Selected Springs at Fort Irwin National Training Center, San Bernardino County, California

The characteristics, discharge, and water quality of springs and seeps, at the Fort Irwin National Training Center (NTC) were evaluated during 2015 and 2016. Geophysical, hydrological, and water-quality data were used to help characterize and document a baseline of current (2016) hydrologic conditions and water quality of springs and seeps located on the NTC. Hydrologic methods used in this study