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Radiocarbon Data from Coastal Environments on Montague Island, Alaska This dataset consists of sample descriptions and radiocarbon age data from coastal environments on Montague Island, Alaska, analyzed at the National Ocean Sciences Accelerator Mass Spectrometry Facility. Categories: Data; Tags: Alaska, Biota, Carbon-14 analysis, Coastal processes, Earth science, All tags... Earthquakes, Geology, GeoscientificInformation, Hazards, Montague Island, Prince William Sound, Seismology, Tectonic processes, USGS Science Data Catalog (SDC), Fewer tags Channel Geometry Data Collected Along the Totatlanika River, Alaska, August 2021 This dataset provides shapefiles and tabular data representing river channel geometries measured on photogrammetric imagery and extracted from a photogrammetric digital elevation model (acquired August 2021) along the Totatlanika River in central Alaska. This is a child item of the USGS Data Release: https://doi.org/10.5066/F7X63KF2 Categories: Data; Tags: Alaska, Alaska Range, Buzzard Creek, California Creek, GeoScientificInformation, All tags... Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Geospatial Datasets, Land Surface, Land surface characteristics, Mountains, Orogenic Movement, Tectonic Landforms, Tectonic Processes, Tectonic Uplift, Tectonic processes, Topography, Totatlanika River, USGS Science Data Catalog (SDC), Fewer tags Boulder Size Data Collected Along the Totatlanika River, Alaska, August 2021 This dataset provides shapefiles and tabular data representing boulders measured on photogrammetric imagery (acquired August 2021) along the Totatlanika River in central Alaska. This is a child item of the USGS Data Release: https://doi.org/10.5066/10.5066/F7X63KF2 Categories: Data; Tags: Alaska, Alaska Range, Buzzard Creek, California Creek, GeoScientificInformation, All tags... Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Geospatial Datasets, Land Surface, Land surface characteristics, Mountains, Orogenic Movement, Tectonic Landforms, Tectonic Processes, Tectonic Uplift, Tectonic processes, Topography, Totatlanika River, USGS Science Data Catalog (SDC), Fewer tags Data Release for the 2023 U.S. 50-State National Seismic Hazard Model - Overview This data release contains data sets associated with the 2023 50-State National Seismic Hazard Model Update. The 2023 50-State National Seimsic Hazard Model (NSHM) Update includes an update to the NSHMs for the conterminous U.S (CONUS, last updated in 2018), Alaska (AK, last updated in 2007), and Hawaii (last updated in 2001). Data sets include inputs like seismicity catalogs used as input to the smoothed seismicity model and updated induced seismicity zone polygons in the central and eastern U.S., as well as outputs like hazard curves and uniform-hazard ground motion values. Plots of selected data sets are also included. The data sets provided here are primarily for the 2023 CONUS NHSM and 2023 AK NSHM. Additional... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Conterminous United States, Earthquake, Hawaii, Hazard, All tags... Map Service, National Seismic Hazard Model, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Seismic, Seismology, USGS Science Data Catalog (SDC), earthquake hazard, geophysics, seismology, Fewer tags Central Alaska Cosmogenic Isotope Burial Age Data Collected 2020-2022 This data release includes three tables containing cosmogenic beryllium-10 and aluminum-26 concentrations and related data from samples collected at four sites in central Alaska in 2020, prepared in 2022 at the University of Vermont (UVM), and measured at the Purdue Rare Isotope Measurement lab (PRIME) in 2022. The file "burialAge_siteLocations_centralAK_bender.csv" contains site locations in the NAD83 reference frame, and burial ages computed from raw data contained in the other files. All files are linked by the site_id_short field. Categories: Data; Tags: Alaska, Aluminum-26 analysis, Beaver Creek, Beryllium-10 analysis, Birch Creek, All tags... Downcutting, Erosion, Geochemistry, Geochronology, Geology, Geomorphology, GeoscientificInformation, Landscape processes, Sedimentation, Sedimentology, Sediments, Stream terrace, Tanana River, Totatlanika River, USGS Science Data Catalog (SDC), Yukon River, Fewer tags Grain Size Data Collected Along the Totatlanika River, Alaska, August 2021 This dataset provides scaled and geotagged digital photographs of river sediment acquired in August 2021 at 21 sites along the Totatlanika River in central Alaska, and tabular sediment grain size data derived from the photographs. This is a child item of the USGS Data Release: https://doi.org/10.5066/F7X63KF2 Categories: Data; Tags: Alaska, Alaska Range, Buzzard Creek, California Creek, GeoScientificInformation, All tags... Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Geospatial Datasets, Land Surface, Land surface characteristics, Mountains, Orogenic Movement, Tectonic Landforms, Tectonic Processes, Tectonic Uplift, Tectonic processes, Topography, Totatlanika River, USGS Science Data Catalog (SDC), Fewer tags Sediment Transport Data from the Totatlanika River, Alaska, August 2021 This data package includes four child items with data about sediment size and transport on the Totatlanika River, northern Alaska Range. Child Item 1: "Grain Size Data Collected Along the Totatlanika River, Alaska, August 2021". Scaled and geotagged digital photographs of river sediment and tabular sediment grain size data derived from the photographs. Child Item 2: "Boulder Size Data Collected Along the Totatlanika River, Alaska, August 2021". Shapefiles and tabular data representing boulders measured on photogrammetric imagery. Child Item 3: "Channel Geometry Data Collected Along the Totatlanika River, Alaska, August 2021". Shapefiles and tabular data representing river channel geometries measured on photogrammetric... Categories: Data; Tags: Alaska, Alaska Range, Buzzard Creek, California Creek, GeoScientificInformation, All tags... Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Geospatial Datasets, Land Surface, Land surface characteristics, Mountains, Orogenic Movement, Tectonic Landforms, Tectonic Processes, Tectonic Uplift, Tectonic processes, Topography, Totatlanika River, USGS Science Data Catalog (SDC), Fewer tags Water Discharge Data Collected and Modeled Along the Totatlanika River, Alaska, August 2021 This dataset provides shapefiles and tables of water flow data (acquired in the field August 2021) and inputs for calculating annual exceedance probability discharges along the Totatlanika River in central Alaska. This is a child item of the USGS Data Release: https://doi.org/10.5066/F7X63KF2 Categories: Data; Tags: Alaska, Alaska Range, Buzzard Creek, California Creek, GeoScientificInformation, All tags... Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Geospatial Datasets, Land Surface, Land surface characteristics, Mountains, Orogenic Movement, Tectonic Landforms, Tectonic Processes, Tectonic Uplift, Tectonic processes, Topography, Totatlanika River, USGS Science Data Catalog (SDC), Fewer tags