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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 Estimated Streamflow Using Satellite Data for Selected Rivers in Alaska This dataset provides estimated Remote Sensing Streamflow (RSQ) data at selected river reaches in Alaska. Reach-specific relations between satellite-derived water-surface elevation data and dynamic surface water extent data were used with a modified form of the Manning's streamflow equation to estimate streamflows. The streamflow estimates were used to create rating tables that define the relation between discharge and satellite-observed water-surface elevation. The streamflow estimates in the gage_data.csv files are derived from these rating tables, interpolated using a polynomial regression equation. Data are organized in child items named for each river reach. Reach-specific details are provided in a README file... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Alaska, Altimetry measurement, Elevation, Holitna River, Hydrology, All tags... InlandWaters, Innoko River, Kantishna River, Koyukuk River, Kuskokwim River, Multispectral imaging, Remote Sensing, Remote sensing, Streamflow, Tanana River, USGS Science Data Catalog (SDC), Water Resources, Yukon River, Fewer tags Marine Ecology near Tufted Puffin Colonies across the Aleutian Archipelago and Alaska Peninsula, 2012-2014 This data package includes 6 child items with data pertaining to Tufted Puffin productivity, chick productivity, oceanographic conditions, environmental conditions, and hydroacoustic characteristics at Tufted Puffin colonies on the Aleutian Islands and Alaska Peninsula. Child Item 1: "Oceanographic Conditions (Temperature and Salinity), North Pacific and Bering Sea 2012-2014". Child Item 2: "Marine Bird and Mammal Surveys, North Pacific and Bering Sea 2012-2014". Child Item 3: "Tufted Puffin Colony Environmental Data, North Pacific and Bering Sea, 2012-2014". Child Item 4: "Hydroacoustic Surveys, North Pacific and Bering Sea, 2012 and 2014". Child Item 5: "Tufted Puffin Chick Body Conditions, North Pacific and... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Acoustic backscatter, Alaska, Alaska Peninsula, Aleutian Islands, Animals/Vertebrates, All tags... Aquatic Biology, Aquatic birds, Bering Sea, Biota, Birds, Coastal ecosystems, Community dynamics, Ecology, Ecosystem functions, Environment, Forage fish, Gulf of Alaska, Hydrology, Marine ecosystems, Nautical area scattering coefficient, North Pacific, Oceans, Pelagic habitat, Population and community ecology, Population dynamics, Salinity, Sensors, Temperature, Tufted Puffin, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and Allies, Water temperature, Wildlife, Wildlife Biology, Fewer tags Child Item 2: Geospatial Sampling Information from the Inventory of Montane-nesting Birds in Aniakchak National Monument and Preserve, Alaska This is a child item of the USGS Data Release: https://doi.org/10.5066/P9KW50B3 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 Estimated Streamflow Using Satellite Data for 1556500001 YUKON RIVER, RSQ REACH, 5 MI DS OF KOYUKUK, AK This dataset provides estimated Remote Sensing Streamflow (RSQ) data on a reach along the Yukon River 5 miles downstream of Koyukuk, Alaska. Reach-specific relations between satellite-derived water-surface elevation data and dynamic surface water extent data were used with a modified form of the Manning's streamflow equation to estimate streamflows. Reach-specific details are provided in a README PDF document included with this data release. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Altimetry measurement, Elevation, Hydrology, InlandWaters, All tags... Multispectral imaging, Remote Sensing, Remote sensing, Streamflow, USGS Science Data Catalog (SDC), Water Resources, Yukon River, Fewer tags Sea Otter Forage Observations from Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore component and a seasonal diet study in Kenai Fjords National Park. This dataset 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 were all recorded. Sites are in Alaska and include locations in Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound. The data in this file were collected from 2012—2024. Version History: First release: March 2017 Revised: November 2024 (ver.... Categories: Data, Data Release - Revised; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Animals/Invertebrates, Animals/Vertebrates, Aquatic ecosystems, Aquatic ecosystems, All tags... Benthic ecosystems, Benthic habitat, Biota, Coastal ecosystems, Coastal habitat, Ecology, Ecology, Environment, Field inventory and monitoring, Field sampling, Foraging behavior, Gulf of Alaska, Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park, Macroinvertebrates, Marine benthic invertebrates, Marine biology, Marine ecosystems, Marine environment monitoring, Marine environments, Northern Sea Otter, Predator-prey interactions, Prey selection, Prince William Sound, USGS Science Data Catalog (SDC), Wildlife, Wildlife Biology, 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 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 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, Data Release - Revised; 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 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 Child Item 3: Geospatial Sampling Information for the Inventory of Montane-nesting Birds in the Arctic Network of National Parks, Alaska This is a child item of the USGS Data Release: https://doi.org/10.5066/P9V4IKNZ 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... 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 North Pacific Pelagic Seabird Database (NPPSD) The North Pacific Pelagic Seabird Database (NPPSD) is maintained by the USGS Alaska Science Center and includes survey transect data designed and conducted by numerous partners primarily to census seabirds at sea. The data provided here relate to observations of marine birds and mammals observed during at-sea surveys throughout the North Pacific including the Arctic Ocean, Beaufort Sea, Chukchi Sea, Bering Sea, Sea of Okhotsk, and Barents Sea. This data release contains 5 tables including observation data, survey locations, taxonomic designations of observed birds and mammals, summary information about each dataset added to the database, and a table showing changes made to the database from version 4.0 to 4.1. ... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alaska, Albatross and Allies, Aquatic birds, Arctic Ocean, Barents Sea, All tags... Beaufort Sea, Bering Sea, Biota, Birds, Canada, Chukchi Sea, Ducks/Geese/Swans, Eagles/Falcons/Hawks and Allies, Ecology, Environment, Grebes, Loons, Marine biology, Marine bird, Marine ecosystems, Marine mammals, North Pacific, Pelicans and Allies, Population dynamics, Sandpipers, Sea ducks, Sea of Japan, Sea of Okhotsk, Seabird, USGS Science Data Catalog (SDC), Waders/Gulls/Auks and Allies, 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 Alaska Landbird Monitoring Survey Dataset Boreal Partners in Flight developed the Alaska Landbird Monitoring Survey (ALMS) primarily to monitor breeding populations of landbirds in the vast off-road areas of Alaska in conjunction with data collected from the roadside North American Breeding Bird Survey (BBS). ALMS is a collaborative program in which agencies and other entities conduct standardized surveys of breeding birds and their habitats on the lands they manage and then provide the data to the U.S. Geological Survey Alaska Science Center for analysis and archiving. The ALMS monitoring program comprises a set of survey blocks that have been selected in a stratified-random design primarily across state and Federal natural resource lands in Alaska with... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Admiralty Island, Alaska, Alaska Maritime National Wildlife Refuge, Alaska Peninsula, Alaska Peninsula National Wildlife Refuge, All tags... Andreafsky Wilderness, Animal and plant census, Animals/vertebrates, Arctic National Wildlife Refuge, Biodiversity, Biogeography, Biota, Bird behavior, Birds, Chugach National Forest, Chugach State Park, Copper River Census Area, Copper River Delta Fish and Wildlife Management Area, Cranes and allies, Denali National Park and Preserve, Denali State Park, Detection distance, Ducks/geese/swans, Eagle/falcons/hawks and allies, East Fork Skagway River, Ecology, Ecology, Environment, Environmental conditions, Fairbanks North Star Borough, Field inventory and monitoring, Fort Greely, Grebes, Habitats, Herons/egrets and allies, Innoko National Wildlife Refuge, James Dalton Mountain, Joint Base Elmendorf-Richardson, Kanuti National Wildlife Refuge, Kenai Wilderness, Klondike Gold Rush National Historic Park, Kodiak National Wildlife Refuge, Koyukuk National Wildlife Refuge, Koyukuk River, Loons, Migratory birds, Mitkof Island, Mount Fairplay, National Petroleum Reserve in Alaska, Natlaratlen River, North Slope Borough, Nowitna National Wildlife Refuge, Ornithology, Perching Birds, Resident birds, Sandpipers, Selawik National Wildlife Refuge, South Baranof Wilderness, Spatial distribution, Taku Glacier, Terrestrial ecosystems, Tetlin National Wildlife Refuge, Tongass National Forest, Tracy Arm-Fords Terror Wilderness, USGS Science Data Catalog (SDC), Waders/gulls/auks and allies, Wildlife, Wildlife Biology, 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