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Location Folder Show Tree ROOT _ScienceBase Catalog __Alaska Science Center (ASC) _Ecosystems _Geology & Natural Hazards _Water Ice & Landscapes aerialImagery aquaticEcology More... Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions ArcGIS Service Definition (2) Shapefile (2) Raster (1) Types Downloadable (5) OGC WFS Layer (5) OGC WMS Layer (5) Shapefile (3) ArcGIS REST Map Service (2) More... Contacts Alaska Science Center Anthony S Fischbach U.S. Geological Survey, Alaska Science Center Alaska Integrated Science Center U.S. Geological Survey More... Tag Types Place (2) Theme (2) Subject (1) USGS Scientific Topic Keyword (1) Tag Schemes Geographic Names Information System (1) None (1) ISO (1) View Results as: JSON ATOM CSV Browse Folder

Pacific Walrus Coastal Haulout Database 1852-2016 We summarize available information on Pacific walrus haulouts from available reports, interviews with coastal residents and aviators, and personal observations of the authors. We provide this in the form of a georeferenced database that may be queried and displayed with standard geographic information system and database management software. The database contains 150 records of Pacific walrus haulouts, with a summary of basic characteristics on maximum haulout size, age-sex composition, season of use, and decade of most recent use. Citations to reports are provided as a bibliographic database. Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Arctic, Arctic Ocean, Beaufort Sea, Bering Sea, All tags... Chukchi Sea, Chukotka, East Siberian Sea, Kamchatka, Pacific Ocean, Russian Far East, biota, coast, haulout, marine, marine mammals, Fewer tags Fairweather fault DTM Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: foo Sea Otter Foraging Observations from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2012-2016 This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, benthic monitoring component and a seasonal diet study in Kenai Fjords National Park. The dataset is a comma separated file exported from a Microsoft Access database. The data consists of observations made of foraging sea otters (Enhydra lutris). Observers used Questar field model spotting scopes and binoculars to identify prey. Date, local time, dive duration, success, prey type, prey size, prey number, handling time and surface time are all recorded. Sites are in Alaska and include locations in Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound. This data in this file were collected 2012-2016. This... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Den Habitat Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile 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 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 Walrus areas of use in the Chukchi Sea during sparse sea ice cover The Pacific walrus (Odobenus rosmarus divergens) feeds on benthic invertebrates on the continental shelf of the Chukchi and Bering seas and rests on sea ice between foraging trips. With climate warming, ice-free periods in the Chukchi Sea have increased and are projected to increase in frequency and duration. We radio-tracked walruses to estimate areas of walrus foraging and occupancy in the Chukchi Sea during June–November of 2008–2011, years when sea ice was sparse over the continental shelf. The earlier and more extensive sea ice retreat in June–September and delayed freeze-up of sea ice in October and November, allowed walruses to arrive earlier, occupy slightly more northern areas, and stay later in the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Pacific Walrus, Walrus, behavior, satellite tracking, telemetry