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Filters Date Types (for Date Range) Contacts (Less) U.S. Geological Survey, Alaska Science Center Alaska Science Center U.S. Geological Survey - ScienceBase William E Odom Arimitsu, M.L. (ORCID: 0000-0001-6982-2238) More... Categories (Less) Data (15) Tags (with Type=Place and Scheme=USGS Geographic Names Information System (GNIS)) alaska (18) gulf of alaska (11) cook inlet (8) kachemak bay (8) kanuti national wildlife refuge (3) alaska peninsula (2) alaska peninsula national wildlife refuge (2) arctic national wildlife refuge (2) gull island (2) innoko national wildlife refuge (2) izembek lagoon (2) joint base elmendorf-richardson (2) kodiak national wildlife refuge (2) koyukuk national wildlife refuge (2) nowitna national wildlife refuge (2) selawik national wildlife refuge (2) tetlin national wildlife refuge (2) admiralty island (1) agassiz national wildlife refuge (1) alaska maritime national wildlife refuge (1) More... View Results as: JSON ATOM CSV

Population Plots at Two Seabird Colonies in Lower Cook Inlet, Alaska This dataset consists of one table with annual counts from population plots of Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags Common Murre Disturbance Data on Gull Island, Kachemak Bay, Alaska This dataset consists of one table with predator disturbance information from the Common Murre breeding season (June-August) from 2016-2020 on Gull Island, Kachemak Bay, Alaska. Categories: Data; Tags: Alaska, Animal behavior, Animals/Vertebrates, Bald Eagle, Biota, All tags... Birds, Breeding sites, Breeding success, Coastal ecosystems, Common Murre, Community dynamics, Community ecology, Cook Inlet, Eagles/Falcons/Hawks and Allies, Ecosystem functions, Egg production, Environment, Field inventory and monitoring, Glaucous-winged Gull, Gulf of Alaska, Gull Island, Haliaeetus leucocephalus, Herring Gull, Kachemak Bay, Larus argentatus, Larus glaucescens, Marine ecosystems, Nesting behavior, Reproduction, USGS:ASC586, Uria aalge, Waders/Gulls/Auks and Allies, Fewer tags Cosmogenic Al-26/Be-10 Isochron Burial Data for the Nussbaum Gravel at Baculite Mesa, CO We have constrained the age of the Nussbaum Gravel at Baculite Mesa, CO using cosmogenic Al-26/Be-10 isochron burial dating. Two samples, a coarse sand and a fine gravel, were prepared for burial dating at the Reston Cosmogenic Nuclide (RECON) Lab and measured via accelerator mass spectrometry at the Purdue Rare Isotope Measurement (PRIME) Lab. The results of this work are summarized in the file “BaculiteMesa_SiteLocation_Odom.csv”, which contains site data and burial age calculations; measurements of aluminum-26 and beryllium-10, as well as related data, are located in respective .csv files. We calculated respective minimum and maximum burial ages for the sand (1.25 ± 0.08 Ma and 1.66 ± 0.12 Ma) and gravel (1.44... Categories: Data; Tags: Aluminum-26, Beryllium-10, Burial dating, Colorado, Geochronology, All tags... Geology, Geomorphology, Geomorphology, Glaciology, Isochron, USGS Science Data Catalog (SDC), Fewer tags Selected Whole-Rock and Sediment Geochemistry Reanalysis Data Additions to the Alaska Geochemical DataBase (AGDB) from Archived Samples, Alaska This data release contains elemental concentration data from the reanalysis of 13,930 archived stream-sediment sample and associated stream sediment reference material and 968 archived rock samples and associated rock reference material. All archived material was from samples that were collected in Alaska. Samples were retrieved from the USGS Mineral Program's sample archive in Denver, CO. Sample processing consisted of splitting the appropriate aliquot for the requested analyses. Sample splitting was performed in the USGS Mineral Program's sample prep facilities. 13,800 samples were analyzed using a multi-element analytical method involving decomposition of the sample by sodium peroxide and elemental analysis by... Categories: Data; Tags: Alaska, Alaska Range, Aleutian Islands, Aleutian Range, Alexander Archipelago, All tags... Bering Sea, Brooks Range, Chugach Mountains, Geochemistry, Gulf of Alaska, Kuskokwim Mountains, Mineral Resources, Seward Peninsula, USGS Science Data Catalog (SDC), United States, Wrangell Mountains, aluminum, antimony, arsenic, barium, beryllium, boron, cadmium, calcium, cerium, cesium, chemical analysis, chromium, cobalt, copper, dysprosium, earth science, earth sciences, erbium, europium, ferric iron, ferrous iron, gadolinium, gallium, geochemistry, geochemistry, geoscientificInformation, germanium, gold, hafnium, holmium, indium, iron, lanthanum, lead, lithium, lutetium, magnesium, manganese, mercury, mineral resources, mineralogy, molybdenum, neodymium, nickel, niobium, palladium, potassium, praseodymium, rhenium, rubidium, samarium, scandium, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, terbium, thallium, thorium, thulium, tin, titanium, tungsten, uranium, vanadium, ytterbium, yttrium, zinc, zirconium, Fewer tags U.S. Fish and Wildlife Service Argos GPS Satellite Tracking Data for Lesser Yellowlegs (Tringa flavipes) This data package contains location data collected by the Argos System (CLS America, Inc.) from satellite transmitters attached to 116 Lesser Yellowlegs captured at multiple sites across their breeding and nonbreeding range in North America, 2018-2021. The raw data were processed to accomplish two goals: 1) flag implausible location and 2) remove locations within Joint Base Elmendorf-Richardson (JBER) and Eielson Air Force Base boundaries. Removal of locations in military land boundaries is required due to federal guidelines by Department of Defense (DoD) Public Affairs office and DoD Partners in Flight. Due to data sharing constraints of participating agencies, not all the locations (i.e., latitude and longitude)... Tags: Alaska, Anchorage, Animal tracking, Animals/Vertebrates, Annual cycle, All tags... Argos, Biota, Birds, Breeding sites, Canada, Capture-recapture studies, Central America, Churchill, Coastal ecosystems, Eielson AFB, Environment, Ile Nue de Mingan, James Bay, Joint Base Elmendorf-Richardson, Kanuti National Wildlife Refuge, Marine ecosystems, Migratory birds, Migratory rates/routes, Migratory species, Non-breeding range, Ornithology, Overwintering, Satellite transmitter, Seasonal distribution, Seasonal movement, South America, Species life history, Tagging devices, The Caribbean, Tracking equipment, United States of America, Waders/Gulls/Auks and Allies, Wildlife, Yellowknife, Fewer tags Aerial Photo Imagery from Fall Waterfowl Surveys, Izembek Lagoon, Alaska, 2017-2019 The imagery and annotations presented here were generated while testing an aerial photographic survey design to improve repeatability, transparency, and estimation of variance for annual population estimates of geese staging at Izembek Lagoon, Alaska. This dataset includes 1) 131,031 .JPG images captured from a small fixed-wing occupied aircraft, usually at an altitude of about 457 m, over Izembek Lagoon; 2) annotations of objects (geese, ducks, and gulls) assigned by an automated algorithm, and 3) manually corrected annotations that were edited by project staff for only those photos automatically identified as containing geese of any species. The photos were captured at predetermined points to systematically sample... Tags: Aerial photography, Aerial surveys, Alaska, Alaska Peninsula, Animals/Vertebrates, All tags... Anser canagicus, Aquatic ecosystems, Biota, Birds, Branta bernicla, Branta hutchinsii, Coastal ecosystems, Ducks/Geese/Swans, Environment, Estuarine habitat, Image collections, Izembek Lagoon, Izembek National Wildlife Refuge, Migratory birds, Migratory species, Photography, Population dynamics, Relative abundance analysis, Tundra ecosystems, USGS:ASC449, Waders/Gulls/Auks and Allies, Waterfowl, Wetland ecosystems, Wildlife, Fewer tags Assessing the Status and Trends of Seabirds and Forage Fish in Lower Cook Inlet, Alaska This data release is composed of seven datasets regarding colonial seabirds and forage fish at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. These data were collected to detect changes in the breeding population of Black-legged Kittiwakes and Common Murres on two nesting colonies in lower Cook Inlet and to compare those counts to baseline counts from 1995-1999. They are part of an ongoing study in lower Cook Inlet, Alaska to assess the recent status of forage fish and seabirds (2000-2020). Tags: Alaska, Animal behavior, Animals/Vertebrates, Bald Eagle, Biota, All tags... Birds, Breeding sites, Breeding success, Coastal ecosystems, Common Murre, Community dynamics, Community ecology, Cook Inlet, Eagles/Falcons/Hawks and Allies, Ecosystem functions, Egg production, Environment, Field inventory and monitoring, Glaucous-winged Gull, Gulf of Alaska, Gull Island, Haliaeetus leucocephalus, Herring Gull, Kachemak Bay, Larus argentatus, Larus glaucescens, Marine ecosystems, Nesting behavior, Reproduction, Uria aalge, Waders/Gulls/Auks and Allies, Fewer tags Nesting Productivity of Black-Legged Kittiwakes and Common Murres at Two Seabird Colonies in Lower Cook Inlet, Alaska This dataset consists of one table with annual nesting productivity estimates for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, USGS:ASC378, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags Sounding Cross Section Surveys at Alaska Bridge Crossings Since 1993 the U.S. Geological Survey (USGS) has worked with the Alaska Department of Transportation and Public Facilities (ADOT&PF) to provide hydraulic assessments of scour for bridges throughout Alaska. As part of this effort, repeat channel cross section surveys, or channel soundings, have been collected at either the upstream or downstream side of bridges on an annual or as needed basis. Streambed and bank elevations are measured using USGS sounding weights and reels, weighted measuring tapes, acoustic Doppler current profilers, multibeam echo sounders and light detection and ranging and are referenced to the datum of as-built plan set to provide context for the streambed elevations in relation to bridge structures.... Categories: Data; Tags: ADCP, Acoustic Doppler Current Profiling, Alaska, Bridges, Discharge/flow, All tags... Geomorphology, Hydrology, Hydrology, InlandWaters, Rivers/streams, Scour, Streambed, Terrestrial Hydrosphere, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Hydroacoustic Survey Data from Lower Cook Inlet, Alaska This dataset consists of one table with Area Backscattering Coefficient (ABC) data from hydroacoustic transect surveys collected around two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Acoustic backscatter, Alaska, Aquatic Sciences and Fisheries, Biota, Coastal ecosystems, All tags... Cook Inlet, Environment, Fisheries, Fishery technology, Gulf of Alaska, Hydroacoustics, Kachemak Bay, Marine ecosystems, Marine fisheries, Marine fishery resources, Nautical area scattering coefficient, Oceans, Pelagic habitat, Zooplankton, Fewer tags Water Temperature, Electrical Conductivity, and Salinity of Lagoons in the Beaufort Sea, Alaska, 2017-2019 This dataset contains a table with temperature (°C), raw electrical conductivity (μS/cm), and salinity (psu) measured in Beaufort Sea, Alaska, Lagoons during summers 2017-2019. Categories: Data; Tags: Alaska, Beaufort Sea, Coastal ecosystems, Environment, Estuarine habitat, All tags... Intertidal environments, Jago Lagoon, Kaktovik Lagoon, Marine ecosystems, Oceans, Salinity, Simpson Lagoon, Stefansson Sound, USGS Science Data Catalog (SDC), Water conductivity, Water temperature, Water temperature, Fewer tags Data for Infectivity of Wild-Bird Origin Influenza A Viruses in Minnesota Wetlands Across Seasons This data set represents an ecological and laboratory-based experiment to understand influenza virus viability in surface water. Data tables included in this release consist of 1) daily mean water temperature, 2) viability of viruses maintained in water, 3) influenza detection in duck samples, 4) viral titers of experimentally inoculated water samples, and 5) water chemistry. Categories: Data; Tags: Agassiz National Wildlife Refuge, Animal disease, Animal diseases/disorders/pests, Animals/vertebrates, Aquatic Biology, All tags... Avian influenza, Biota, Birds, Disease reservoirs, Disease/epidemic, Ducks/geese/swans, Environment, Environmental Health, Freshwater ecosystems, Genetics, Health, Health and disease, Influenza A virus, Lakes/reservoirs, Migratory birds, Minnesota, Persistence, Roseau River Wildlife Management Area, USGS Science Data Catalog (SDC), Virus Diseases, Viruses, Waterfowl, Wildlife, Wildlife Biology, Wildlife Disease, Wildlife disease, Fewer tags Data and Model-Based Estimates from Black Brant (Branta bernicla nigricans) Fall Age Ratio Surveys at Izembek Lagoon, Alaska These data are in two tables relating to fall age ratios (number of juvenile birds : total birds aged) of Black Brant (Branta bernicla nigricans) staging in Izembek Lagoon, Alaska, since 1963. The first table is observation data for the age classes of Black Brant during surveys, and associated survey characteristics. The second table contains model-based estimates of age ratios by year along with Standard Error (SE), and 95% Bayesian credible intervals around estimates. Tags: Alaska, Animal populations, Animals/Vertebrates, Biota, Birds, All tags... Black Brant, Brent Goose, Computational methods, Ecological dynamics, Environment, Izembek Lagoon, Izembek National Wildlife Refuge, Mathematical modeling, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS:ASC256, Waterfowl, Wildlife biology, Fewer tags Glacier Bay National Park and Preserve Sea Otter Forage Data, 1993-2019 These data describe observations of sea otter foraging behavior in Glacier Bay National Park and Preserve. Data consist of dive and surface times, success in prey retrieval, prey item, prey quantity, and size. Additionally, location of observations, and age class, sex, and pup status of the focal sea otter were also recorded. Tags: Alaska, Animals/Invertebrates, Animals/Vertebrates, Benthic ecosystems, Biota, All tags... Coastal ecosystems, Coastal ecosystems, Enhydra lutris, Environment, Foraging behavior, Glacier Bay National Park and Preserve, Gulf of Alaska, Macroinvertebrates, Marine ecology, Marine ecosystems, Marine environment monitoring, Prey, Prey selection, Sea otters, Wildlife, Fewer tags Predation of Common Murre Eggs at Two Seabird Colonies in Lower Cook Inlet, Alaska This dataset consists of one table with egg predation data from Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Alaska, Animals/Vertebrates, Bald Eagle, Biota, Birds, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Egg production, Environment, Glaucous-winged Gull, Gulf of Alaska, Haliaeetus leucocephalus, Herring Gull, Indicator species, Kachemak Bay, Larus argentatus, Larus glaucescens, Marine ecosystems, Nesting behavior, Nesting success, Population dynamics, Reproductive success, Uria aalge, Use/Feeding habitat, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags Intertidal Mussel (Mytilus) Data 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 and describe mussel sampling and observations conducted in the northern Gulf of Alaska. This dataset consists of six comma separated files (.csv): 1) mussel sampling site layout information, 2) mussel counts for mussels greater than 20 millimeters in a quadrat, 3) mussel size measurements for mussels greater than 20 millimeters in a quadrat, 4) mussel counts for all mussels collected from core samples, 5) mussel size frequencies for all mussels collected from core samples, and 6) list of Gulf Watch Alaska principal investigators and collaborators. Tags: Alaska, Animals/Invertebrates, Aquatic biology, Aquatic ecosystems, Aquatic ecosystems, All tags... Benthic ecosystems, Benthic habitat, Bioindicator, Biospheric indicators, Biota, Coastal ecosystems, Coastal habitat, Coastal processes, Ecology, Environment, Field inventory and monitoring, Field sampling, Gulf of Alaska, Katmai National Park and Preserve, Kenai Fjords National Park, Macroinvertebrates, Marine ecosystems, Marine environment monitoring, Marine environments, Mollusks, Mollusks, Mussels, Pacific Blue Mussel, Prince William Sound, Size distribution, Spatial distribution, Wildlife, Fewer tags Cosmogenic Be-10 Exposure Data for a Boulder Field in Zepp, VA We have dated a boulder field in Zepp, VA using cosmogenic Be-10 exposure dating. Three samples taken from boulders at three elevations in the boulder field (804 m asl, 818 m asl, and 831 m asl) were processed at the Reston Cosmogenic Nuclide (RECON) Lab and measured via accelerator mass spectrometry at the Purdue Rare Isotope Measurement (PRIME) Lab. The results of this work are summarized in the file “Zepp_Exposure_Beryllium10_Odom.csv”. This file contains all relevant sample location data, as well as input variables for exposure age calculations. We employed the CRONUS v.3 exposure age calculator (Balco et al., 2008) to estimate exposure ages for these samples and report exposure ages derived using the LSDn time-dependent... Categories: Data; Tags: Beryllium-10, Boulder field, Climatology, Exposure dating, Geochronology, All tags... Geology, Geomorphology, Geomorphology, Glaciology, USGS Science Data Catalog (SDC), Virginia, Fewer tags Population Counts at Two Seabird Colonies in Lower Cook Inlet, Alaska This dataset consists of one table with annual population counts (censuses) for Black-legged Kittiwakes and Common Murres at two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Birds, Black-legged Kittiwakes, All tags... Breeding sites, Coastal ecosystems, Common Murres, Cook Inlet, Environment, Gulf of Alaska, Indicator species, Kachemak Bay, Marine ecosystems, Population dynamics, Rissa tridactyla, Uria aalge, Waders/Gulls/Auks and Allies, Wildlife, Fewer tags Fish Morphology Data from Lower Cook Inlet, Alaska This dataset consists of two tables: 1) forage fish catch and size data from hydroacoustic trawl transects, and 2) taxonomic details of fish species collected around two seabird nesting colonies on Gull and Chisik Islands in lower Cook Inlet, Alaska. Categories: Data; Tags: Alaska, Animals/Vertebrates, Biota, Cook Inlet, Environment, All tags... Fish, Fisheries, Food fishes, Forage fish, Gulf of Alaska, Kachemak Bay, Marine ecosystems, Marine fishery resources, Mid-water trawl, Pelagic habitat, Population and community ecology, Trawling, Zooplankton, 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; 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 1 2 »