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Location Folder Show Tree ROOT _ScienceBase Catalog 3DSC Alaska Science Center (ASC) Alkalic Igneous Centers of the Great Plains and Rocky Mountains: Data in Support of Critical Mineral Resource Studies AMMonitor: Remote wildlife monitoring for adaptive management Amphibian Research and Monitoring Initiative More... Filters Date Range Past year (5) Past month (4) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (4) ArcGIS Service Definition (2) Raster (1) Types OGC WFS Layer (12) OGC WMS Layer (12) OGC WMS Service (8) Downloadable (7) Shapefile (4) More... Contacts Nora B Shew U.S. Geological Survey - ScienceBase U.S. Geological Survey Keith A Labay Janet H Curran More... Categories Data (10) Tag Types Theme (9) Place (9) USGS Scientific Topic Keyword (8) Subject (3) Harvest Set (9) Tag Schemes None (5) USGS Protected Areas Database of the United States (PAD-US) (1) ISO 19115 Topic Category (7) NASA GCMD Earth Science Keyword Thesaurus (3) Geographic Names Information System (1) USGS Thesaurus (4) Geographic Names Information System (GNIS) (1) More... View Results as: JSON ATOM CSV Browse Folder

Data and results for GIS-based identification of areas that have resource potential for sediment-hosted Pb-Zn deposits in Alaska This data release contains the analytical results and the evaluated source data files of a geospatial analysis for identifying areas in Alaska that may have potential for sediment-hosted Pb-Zn (lead-zinc) deposits. The spatial analysis is based on queries of statewide source datasets Alaska Geochemical Database (AGDB3), Alaska Resource Data File (ARDF), and Alaska Geologic Map (SIM3340) within areas defined by 12-digit HUCs (subwatersheds) from the National Watershed Boundary dataset. The packages of files available for download are: 1. The results in geodatabase format are in SedPbZn_Results_gdb.zip. The analytical results for sediment-hosted Pb-Zn deposits are in a polygon feature class which contains the points... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), geochemistry, lead, sediment, zinc Selected Basin Boundaries for USGS Streamgages in Alaska through 2019 This dataset contains drainage basin boundaries for 253 U.S. Geological Survey (USGS) streamgages in Alaska that had at least 5 years of daily streamflow through September 30, 2017, three of which were delineated for alternate basin conditions. This compilation includes selected boundaries produced in 2014 (https://doi.org/10.5066/P143KNEJ). Additional basin boundaries were delineated from the streamgage location to the nearest USGS Watershed Boundary Dataset (WBD) HUC boundary and along HUC boundaries from that intersection to the basin headwaters. Streamgages selected for drainage basin delineation included streamgages in Alaska that met selection criteria for a statewide study of seasonal flow regimes (Curran... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Discharge/flow, Hydrographic datasets, Hydrology, Hydrology, All tags... InlandWaters, Rivers/streams, Terrestrial Hydrosphere, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Drainage basins for selected transboundary streams in south-east Alaska and Canada through 2022 This dataset consists of drainage basin boundaries for selected transboundary basins draining to the Gulf of Alaska in south-east Alaska. Basins were delineated to the basin outlet using a tidal datum of mean high water (MHW). The drainage basins are provided as polygons attributed with basin drainage area and as polylines attributed with the data source for each line segment, respectively. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geomorphology, USGS Science Data Catalog (SDC), Water Resources, drainage basins, inlandWaters, All tags... watershed, Fewer tags Alaska Land Carbon Assessment Data We are provoding a set of table and maps that provides summary of ecosystem carbon balance (pools and fluxes) as simulated by the Dynamic Organic Soil version of the Terrestrial Ecosystem Model. Simulations are provided for the historical period from 1950 to 2009 and projections from 2010 to 2099, for the four main landscape conservation cooperative regions in Alaska (i.e. the Arctic, the Western Alaska, the North Pacific and the Northwest Boreal LCCs). Projections have been conducted at 1km-resolution for two set of climate scenarios for the A1B, B1 and A2 emission scenarios of the Intergovernmental Panel on Climate Change Special Report on Emissions Scenarios (IPCC-SRES). The two global circulation models used... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Carbon balanace, NCCWSC, Soil, Terrestrial ecosystem, All tags... USGS Science Data Catalog (SDC), Vegetation, geoscientificInformation, Fewer tags 01 - Results for GIS-based Identification of Areas that have Resource Potential for Sediment-hosted Pb-Zn Deposits in Alaska Compressed file SedPbZn_Results_gdb.zip contains the analytical results of a geospatial analysis for identifying areas in Alaska that may have potential for sediment-hosted Pb-Zn (lead-zinc) deposits. The spatial analysis is based on queries of statewide source datasets Alaska Geochemical Database (AGDB3), Alaska Resource Data File (ARDF), and Alaska Geologic Map (SIM3340) within areas defined by 12-digit HUCs (subwatersheds) from the National Watershed Boundary dataset. An ArcMap mxd file, layer file, and geodatabase with cartographic layers is provided for users to view the analytical results in ArcMap. Additional files include FGDC metadata, a pdf showing the query parameters for the analysis, and a README file.... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Mineral deposits, lead, zinc USGS Alaska Science Center Polar Bear Maternal Dens Polar bear maternal dens were published in a USGS Data Series report (568). Data were processed by Abby Benson for inclusion in OBIS-USA in 2014. An update of the dataset was published in 2018. Data were re-processed by Abby Benson in 2022. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Data and results for GIS-based identification of areas that have resource potential for lode gold deposits in Alaska This data release contains the analytical results and evaluated source data files of geospatial analyses for identifying areas in Alaska that may be prospective for different types of lode gold deposits, including orogenic, reduced-intrusion-related, epithermal, and gold-bearing porphyry. The spatial analysis is based on queries of statewide source datasets of aeromagnetic surveys, Alaska Geochemical Database (AGDB3), Alaska Resource Data File (ARDF), and Alaska Geologic Map (SIM3340) within areas defined by 12-digit HUCs (subwatersheds) from the National Watershed Boundary dataset. The packages of files available for download are: 1. LodeGold_Results_gdb.zip - The analytical results in geodatabase polygon feature... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Alaska, Alaska lode gold geology, Alaska lode gold geology geochemistry, Economic Geology, Epithermal, All tags... Geochemistry, Geochemistry, Geographic Information System (GIS), Geology, Gold, Lode gold, Mineral resources, Orogenic, Porphyry, Prospectivity mapping, Reduced intrusion-related gold, United States, Fewer tags Gulf Watch Alaska Nearshore Component: Monitoring Site Locations from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. Specifically, these data describe site locations for rocky intertidal, mussel sampling, soft sediment bivalve sampling, and eelgrass bed sampling in the northern Gulf of Alaska within the GWA program. The dataset consists of two comma separated files exported from a Microsoft Excel workbook. The data consists of 1. rocky intertidal, mussel sampling, and soft sediment site location information, and 2. eelgrass bed locations. Sampling will be conducted in Katmai National Park and Preserve (KATM), Kenai Fjords National Park (KEFJ), Prince William Sound (PWS) and to a lesser extent on the Lake Clark National... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Alaska Peninsula, Algae, Aquatic Biology, Benthic, All tags... Biota, Community ecology, Ecology, Ecology, Ecosystem monitoring, Eelgrass, Environment, Gulf of Alaska, Intertidal, Invertebrates, Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park, Lake Clark National Park, Mussels, Nearshore ecology, Prince William Sound, USGS Science Data Catalog (SDC), Fewer tags 02 - Source Data for GIS-based Identification of Areas that have Resource Potential for Sediment-hosted Pb-Zn Deposits in Alaska Compressed file sedPbZn_SourceData_gdb.zip contains the GIS datasets and Python scripts used to calculate the estimated potential and certainty that sediment-hosted Pb-Zn (lead-zinc) deposits might be present in an area in Alaska. The statewide datasets include: Alaska Geochemical Database (AGDB3), Alaska Resource Data File (ARDF), lithology layers created from Alaska Geologic Map (SIM3340), and 12-digit HUCs, subwatersheds from the National Watershed Boundary dataset. FGDC metadata for all datasets are included. In addition, files are included for the user to modify the parameters of the analysis. These include two Python scripts, 1) used to score ARDF sites for sediment-hosted Pb-Zn potential, and 2) to evaluate... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: geochemistry, geologic map, lead, mineral resource, watershed, All tags... zinc, Fewer tags Gridded Pre-2015 Bathymetry Data for Icy Bay and Taan Fiord, Alaska This data release provides a gridded compilation of bathymetry data collected prior to the 2015 landslide in Taan Fiord, the northeast arm of Icy Bay, Alaska. The data release consists of a 50-m grid, derived from ten prior surveys covering both Taan Fiord and Icy Bay. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: ASC, Alaska, Alaska Science Center, Bathymetry, Bathymetry and elevation, All tags... CMHRP, Coastal and Marine Hazards and Resources Program, EHP, Earthquake Hazards Program, Elevation, Icy Bay, LHP, Landslide Hazards Program, Marine Geology, Oceans, Seismology, Singlebeam echo sounder, Taan Fiord, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Fewer tags 03 - Appendices for GIS-Based Identification of Areas that have Resource Potential for Sediment-hosted Pb-Zn Deposits in Alaska Compressed file sedPbZn_Appendices.zip contains the appendix files 2, 3, and 4 associated with U.S. Geological Survey (USGS) publication Open-File Report 2020-1147. Appendix 2 provides the scoring criteria of the Alaska Resource Data File (ARDF), listing keywords for different ARDF fields and the weighting factor for each word. Appendix 3 lists the ARDF sites with the resulting scores of the keyword searches. Appendix 4 charts out the queries used on the Geologic Map of Alaska to create different lithology datasets. The appendices are each provided as XLSX and CSV files. Also included is a CSV with the results of the scoring analysis showing for each subwatershed (HUC12) the score for each source data layer, total... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Copper River and Knik River Bathymetric Surveys at Select Alaska Highway Bridges near Flag Point and Butte, Alaska, 2020 In 2020, the Alaska Science Center and the Idaho Water Science Center conducted bathymetric surveys at three highway bridge structures. The bridge structures (NBI 331 and 1187) at Flag Point near Cordova, AK are located on Alaska State Route 10 (commonly referred to as the Copper River Highway). Bridge structure NBI 539 on the Knik River is located on the Old Glenn Hwy near Butte, AK. These bathymetry data generally include complete coverage for upstream and downstream channels, except for extreme shallow areas along banks, where structures limited boat access, or where data was removed during post-processing. Bridges 1187, 331, and 539 are scour-critical bridges, and 1187 and 539 are part of the Alaska Science... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AK, ASCII, Alaska, Bathymetry, Butte, All tags... Copper River, Cordova, Geology, Geomorphology, Hydrology, Hypack, Hysweep, Knik River, Multibeam, Sedimentology, U.S. Geological Survey, USA, USGS, USGS Science Data Catalog (SDC), Water Depth, Water Resources, XYZ, elevation, inlandWaters, inlandWaters, swath bathymetry, topography, Fewer tags Corrected Fire Perimeters of Alaska's National Wildlife Refuges This data package includes 481 geospatial vector polygons of historic fire perimeters associated with National Wildlife Refuges in Alaska. These polygons, originally held within the Alaska Large Fire Database (ALFD), were reviewed and found to have geospatial inaccuracies with respect to the fire they represent. They were corrected and updated based on a variety of remote sensing resources; the Monitoring Trends in Burn Severity (MTBS) database (https://www.mtbs.gov/viewer/index.html), geospatial rasters of historic fire activity derived from Landsat 1-9 imagery in the Google Earth Engine(https://earthengine.google.com) environment, and historical air photos acquired through EarthExplorer (https://earthexplorer.usgs.gov/).... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Alaska Peninsula National Wildlife Refuge, Arctic National Wildlife Refuge, Becharof National Wildlife Refuge, Disturbance, All tags... Environment, Fires, Forestry, Habitat alteration and disturbance, Innoko National Wildlife Refuge, Izembeck National Wildlife Refuge, Kanuti National Wildlife Refuge, Kenai National Wildlife Refuge, Kodiak National Wildlife Refuge, Koyukuk National Wildlife Refuge, Land Use / Land Cover, Land Use Change, Landsat, Landscape, Landscape Processes, Nowitna National Wildlife Refuge, Remote Sensing, Remote sensing, Selawik National Wildlife Refuge, Tetlin National Wildlife Refuge, Togiak National Wildlife Refuge, USGS Science Data Catalog (SDC), Wildland fire, Yukon Delta National Wildlife Refuge, Yukon Flats National Wildlife Refuge, Fewer tags Selected Basin Boundaries for USGS Streamgages in Alaska through 2014 This dataset contains 474 drainage basin boundaries for U.S. Geological Survey (USGS) streamgages in Alaska, including supplemental drainage basin boundaries for alternate conditions for 3 of the 471 streamgages. The basin boundaries were delineated from the streamgage location to the nearest USGS Watershed Boundary Dataset (WBD) HUC boundary and along HUC boundaries from that intersection to the basin headwaters. The dataset also includes the streamgage locations used for delineation, which consist of points snapped from the streamgage coordinates in the USGS National Water Information System to the USGS National Hydrography Dataset flowline representing the respective streams. Streamgages selected for drainage... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Discharge/flow, Hydrographic datasets, Hydrology, Hydrology, All tags... InlandWaters, Rivers/streams, Terrestrial Hydrosphere, USGS Science Data Catalog (SDC), Water Resources, Fewer tags