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Interior Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Interior Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service 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 Western Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Western Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service 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 Northern Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Northern Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Child Item 2: Geospatial Sampling Information from the Inventory of Montane-nesting Birds in Aniakchak National Monument and Preserve, Alaska This data package contains geospatial layers used for selecting bird survey locations in Aniakchak National Monument and Preserve. 1)"ANIA_original_sample_sitesAlb83" represents the nine 10-km X 10-km sample plots selected for the Aniakchak bird surveys. 2)"ANIA_sample_location_waypointsAlb83" is a summary of the 136 locations at which Aniakchak bird surveys were conducted. 3)"ANIA_sampled_plotsAlb83" represents the nine 10-km X 10-km sample plots inventoried during the Aniakchak bird surveys. 4)"ANIA_savage_site_checksAlb83" represents unique sites within Aniakchak that were identified for site visits based on expert opinion. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Alaska Peninsula, Aleutian Range, Alpine/Tundra, Aniakchak National Monument and Preserve, All tags... Animals/Vertebrates, Avian abundance, Biogeography, Biological Productivity, Biota, Birds, Community Ecology, Community structure, Distribution, Ecology, Environment, Habitat preferences, Habitats, Information Science, Meshik River, Migratory birds, Perching Birds, Seasonal distribution, Species richness, Terrestrial Ecosystems, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, Fewer tags Southwest Alaska eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Southwest Alaska. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Gulf Watch Alaska, Nearshore Monitoring Component: 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. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Ecology, Enhydra lutris, Gulf of Alaska, Katmai National Park and Preserve, All tags... Kenai Fjords National Park, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife Biology, biota, coastal ecosystems, environment, foraging behavior, marine ecology, monitoring, prey, sea otters, synecology, Fewer tags Bluff Analysis for Potential Peregrine Falcon Nesting Locations within the National Petroleum Reserve – Alaska (NPR-A), 2002-2012 This data set refines potential peregrine falcon nest habitat within the National Petroleum Reserve - Alaska (NPR-A), aids in the interpretation of nest site selection and potential habitat based on the surface geology and geomorphology of the region, determines the key characteristics for the selection of nest sites in known nesting locations relatively to optimal sites in areas without known nesting occurrence, and helps in developing strategies for detecting potential shifts in the distribution of potential nesting habitat. Components of the data development included conducting geospatial analysis using digital elevation models, high-resolution remotely sensed imagery, and geomorphology. This GIS dataset consists... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Biota, Birds, Breeding sites, Eagle/Falcons/Hawks and allies, All tags... Ecology, Environment, Fluvial landforms, Geology, Geomorphic Landforms/Processes, Geomorphology, Geomorphology, Hydrology, Hydrology, Ikpikpuk River, Lakes, North Slope, Rivers/Streams, Surface Water, Terrestrial ecosystems, Terrestrial hydrosphere, USGS Science Data Catalog (SDC), Vegetation, Vegetation changes, Vegetation cover, Water Resources, Wildlife, Wildlife Biology, Fewer tags Den Habitat Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile 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 Bird Species Checklists from USGS Alaska Science Center Field Camps These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps. Data include species observation details such as observers, dates, location, and number of individuals seen. Field camps were located in Northern, Western, Interior, Southwest, Southcentral, and Southeast Alaska, Baja California Sur Mexico, and northern Russia. The data are organized in eight child items (one for each region), each with checklists in a tabular format. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Albatrosses/Petrels and Allies, Animals/Vertebrates, Bahia San Quintin, Baja California Sur, All tags... Biota, Birds, Coastal ecosystems, Cranes, Ducks/Geese/Swans, Eagles/Falcons/Hawks and Allies, Ecology, Environment, Fowl, Game birds, Laguna Ojo de Liebre, Laguna San Ignacio, Loons, Mexico, Migration (organisms), Migratory birds, Migratory rates/routes, Migratory species, Owls, Perching Birds, Raptors, Russia, Sakha Republic, Sandpipers, Santa Rosalia, Seabirds, Seasonal distribution, Shorebirds, Songbirds, Tundra ecosystems, USGS Science Data Catalog (SDC), United States, Waders/Gulls/Auks and Allies, Waterfowl, Wetland ecosystems, Wildlife, Wildlife Biology, Fewer tags Data from the Inventory of Montane-nesting Birds in the Arctic Network of National Parks, Alaska This data package includes three child items with data from montane-nesting bird surveys in the Arctic Network of National Parks in Alaska. Child Item One: "Data and Photographs from the Inventory of Montane-nesting Birds in the Arctic Network of National Parks, Alaska - Cape Krusenstern, Gates of the Arctic, Kobuk Valley, and Noatak". The data include (1) characteristics of bird survey sites, (2) vegetation classification at survey sites, (3) shorebird and predator detection surveys, (4) all bird species detection surveys, (5) bird breeding observations, (6) taxonomic details of detected birds, and 7) point count habitat photo index. Additionally, habitat photographs are included. Child Item Two: "Data and Photographs... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Alpine/Tundra, Animals/Vertebrates, Avian abundance, Baird Mountains, All tags... Bering Land Bridge National Preserve, Biogeography, Biological Productivity, Biota, Birds, Brooks Range, Burnt River, Cape Krusenstern National Monument, Community Ecology, Community structure, De Long Mountains, Distribution, Ear Mountain, Ecology, Endicott Mountains, Environment, Gates of the Arctic National Park and Preserve, Habitat preferences, Habitats, Hannum Creek, Igichuk Hills, Kobuk Valley National Park, Migratory birds, Mulgrave Hills, Noatak National Preserve, Schwatka Mountains, Seasonal distribution, Serpentine Hot Springs, Seward Peninsula, Species richness, Terrestrial Ecosystems, USGS Science Data Catalog (SDC), Waring Mountains, West Bat, Wildlife, Wildlife Biology, 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 Baja Mexico eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Baja California, Mexico. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Child Item 3: Geospatial Sampling Information for the Inventory of Montane-nesting Birds in the Arctic Network of National Parks, Alaska This data package contains geospatial layers used for selecting bird survey locations in the Arctic Network of National Parks. 1)"ARCN_park_boundary" is a summary of park, preserve, and monument boundaries of Arctic Network lands, except those within Bering Land Bridge National Monument. 2)"ARCN_sample_plots" represents the 69, 10 X 10 km sample blocks surveyed and inventoried from 2001-2003 during US Geological Survey's National Park Service (NPS)-sponsored Inventory and Monitoring project. 3)"ARCN_sample_points" is a summary of the 1,652 locations at which bird surveys were conducted from 2001-2003 during US Geological Survey's NPS-sponsored Inventory and Monitoring project. 4)"ARCN_subsections", "ARCN_subsections_grtr100m",... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alaska, Alpine/Tundra, Animals/Vertebrates, Avian abundance, Baird Mountains, All tags... Bering Land Bridge National Preserve, Biogeography, Biological Productivity, Biota, Birds, Brooks Range, Burnt River, Cape Krusenstern National Monument, Community Ecology, Community structure, De Long Mountains, Distribution, Ear Mountain, Ecology, Endicott Mountains, Environment, Gates of the Arctic National Park and Preserve, Habitat preferences, Habitats, Hannum Creek, Igichuk Hills, Kobuk Valley National Park, Migratory birds, Mulgrave Hills, Noatak National Preserve, Schwatka Mountains, Seasonal distribution, Serpentine Hot Springs, Seward Peninsula, Species richness, Terrestrial Ecosystems, USGS Science Data Catalog (SDC), Waring Mountains, Wildlife, Wildlife Biology, 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 Northeast Russia eBird Checklists These data are daily summary checklists of all bird species observed at U.S. Geological Survey, Alaska Science Center (ASC) field camps in Northeast Russia. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service 1 2 »