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Data from Black Brant (Branta bernicla nigricans) Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico This data package includes two child items with data from Pacific Black Brant (Branta bernicla nigricans) during winter and migration periods. Child Item One: "Body mass, Morphological Measurements, Flock Counts, and Age-Ratios from Black Brant Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico". The data include: (1) body mass and morphological measurements from sport hunter harvested brant, and (2) census counts of brant in Bahia de San Quintin, (3) counts for flock age ratio determination, and (4) behavior. Child Item Two: "Black Brant (Branta bernicla nigricans) Radio Detection and Migration Timing Alaska to Mexico". Data from brant tagged with VHF radio transmitters in July 1999 on... Categories: Data, Data Release - Revised; Tags: Alaska, Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, All tags... Baja California Sur, Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Izembek National Wildlife Refuge, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon Kuskokwim Delta, Fewer tags Selected Peak-Flow Special Conditions for USGS Streamgages in Alaska This data package documents selected special conditions affecting the magnitude of peak flows at streamgages in Alaska. The data consist of a table of special conditions for selected peak flows and a table of data sources. This dataset resolves ambiguity introduced by historical variations in USGS National Water Information System (NWIS; https://doi.org/10.5066/F7P55KJN) peak-flow code assignment practices or inherent in defining multiple possible conditions for a single code. For peak flows assigned a code 3 or 9 in the NWIS peak-flow database, the special conditions forming the basis for code assignment were (1) snowmelt or (2) a sudden release of water. Sudden releases of water included glacier dammed lake outburst,... Categories: Data, Data Release - Revised; Tags: Alaska, Discharge/flow, Floods, Hydrographic datasets, Hydrology, All tags... Hydrology, InlandWaters, Rivers/streams, Terrestrial Hydrosphere, Time series datasets, USGS Science Data Catalog (SDC), Water Resources, Fewer tags Black Brant (Branta bernicla nigricans) Radio Detection and Migration Timing Alaska to Mexico This is a child item of the USGS Data Release: https://doi.org/10.5066/F7T43R88 This data package provides data from Pacific Black Brant (Branta bernicla nigricans) tagged with VHF radio transmitters in July 1999 on the Yukon Kuskokwim Delta, Alaska and detected in the following two years during their annual migration. Data include: 1) one table with attributes of the tagged brant, 2) one table with estimated dates of migration events, and 3) seven tables of detection data from radio tracking scans at coastal sites between Alaska and Mexico. Version History: First release: April 2023 Revised: February 2024 (ver. 2.0) Categories: Data, Data Release - Revised; Tags: Alaska, Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, All tags... Baja California Sur, Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Izembek National Wildlife Refuge, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Yukon Delta, Yukon Delta National Wildlife Refuge, Yukon Kuskokwim Delta, Fewer tags Computed Streamflow Using Satellite Data for Selected Rivers in Alaska This dataset provides computed remotely-sensed streamflows (RSQ) at river reaches of selected rivers in Alaska. We used the relation between water-surface elevation data derived from satellite altimetry and dynamic surface water extent data derived from LANDSAT and Sentinel imagery data with the Modified Optimized Manning Method Algorithm (MOMMA) to compute remotely sensed streamflows. Data are organized in ZIP packages named for each river reach. Reach-specific details are provided in a README file included in each river reach ZIP package. Depending on the input data available for specific reaches, we used different workflows to estimate river reach width and process the data from river reaches. Each workflow... Categories: Data, Data Release - Revised; Tags: Alaska, Altimetry measurement, Canning River, Colville River, Copper River, All tags... Elevation, Holitna River, Hydrology, InlandWaters, Innoko River, Kantishna River, Knik River, Koyukuk River, Kuskokwim River, Multispectral imaging, Nushagak River, Porcupine River, Remote Sensing, Remote sensing, Streamflow, Susitna River, Tanana River, USGS Science Data Catalog (SDC), Water Resources, Yukon River, Fewer tags Alaska Resource Data File (ARDF) The Alaska Resource Data File (ARDF) is a database of mines, prospects, and mineral occurrences in Alaska. It contains information compiled from published and unpublished sources from industry, U.S. Bureau of Mines (BOM), U.S. Geological Survey (USGS), and other government and private sources. ARDF is not a mining claims database. ARDF is mainly focused on metallic commodities. Common industrial minerals or commodities, such as sand, gravel and crushed stone, and limestone are not included in ARDF, nor are energy minerals such as peat, coal, and oil and gas. However, uranium, thorium, and rare earth elements, as well as some high unit value industrial minerals, such as barite, jade, graphite, and gypsum, are included.... Categories: Data, Data Release - Revised; Tags: Alaska, Earth science, Economic Geology, Mineral Resources, USGS Science Data Catalog (SDC), All tags... aluminum, antimony, arsenic, bismuth, chromium, cobalt, copper, economic geology, geoscientificInformation, geospatial datasets, gold, iron, lead, magnesium, manganese, mercury, mine, mineral deposits, mineral occurrence, mineral resources, molybdenum, nickel, ore deposit, platinum, prospect, silver, tellurium, tin, titanium, uranium, zinc, 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. Version History: First release: May 2021 Revised: February 2022 (ver. 2.0) Revised: February 2023 (ver. 3.0) Categories: Data, Data Release - Revised; 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 Common Murre Die-off Surveys and Necropsies Following the North Pacific Marine Heatwave, 2015-2016 These data are in two tables relating to a die-off of Common Murres (Uria aalge) in the north Pacific, 2015-2016. The tables provide: 1) beach survey locations, date, time, distance surveyed (kilometers), and number of Common Murre carcasses observed during surveys conducted along the coastline of Alaska to document the 2015-2016 die-off of Common Murres coincident with the North Pacific marine heatwave, and 2) Common Murre necropsy results from carcasses collected during the die-off, including: bird identification number, collection date, collection location, and body and tissues measurements. Version History: First release: January 2020 Revised: June 2024 (ver. 2.0) Categories: Data, Data Release - Revised; Tags: Alaska, Alaska Peninsula, Aquatic ecosystems, Biota, Coastal ecosystems, All tags... Coastal habitat, Common Murre, Die-off, Environment, Field inventory and monitoring, Gulf of Alaska, Kenai Fjords, Kenai Peninsula, Marine ecosystems, Marine habitat, Mortality, Mortality event, Necropsy, Prince William Sound, Specimen collecting, USGS Science Data Catalog (SDC), Uria aalge, Wildlife Biology, Wildlife biology, Fewer tags Pacific Walrus Coastal Haulout Occurrences Interpreted from Satellite Imagery This dataset is derived from images from a variety of Earth observing satellite imagery sources collected at known walrus coastal haulouts in Alaska and Chukotka, Russia. Earth observing imagery sources used in this data release include (but are not limited to) optical imagery collections by: (1) the European Space Agency's Sentinel-2 mission, (2) the Plant Labs Planet Scope constellation, and (3) Maxar satellites, as well as synthetic aperture radar imagery collected by: (1) European Space Agency's Sentinel-1 mission, (2) the DLR (German Aerospace Agency) TerraSAR-X satellite, (3) the Umbra Space satellite constellation, (4) the Canadian Radarsat-2 satellite, (5) the Capella Space satellite constellation and (6)... Categories: Data, Data Release - Revised; Tags: Alaska, Animals/Vertebrates, Biota, Carnivores, Chukchi Sea, All tags... Chukotka, Coastal ecosystems, Environment, Field inventory and monitoring, Image collections, Mammals, Marine ecosystems, Marine mammals, Migratory species, Odobenus rosmarus divergens, Pacific Walrus, Pinniped, Remote sensing, Russia, Satellite imagery, Seals/sea lions/walruses, Seasonal distribution, USGS Science Data Catalog (SDC), Walrus, Wildlife, Wildlife Biology, Fewer tags Body mass, Morphological Measurements, Flock Counts, and Age-Ratios from Black Brant Overwintering in Three Lagoons Along the Baja California Peninsula, Mexico This is a child item of the USGS Data Release: https://doi.org/10.5066/F7T43R88 This data package includes four tables of data from Pacific Black Brant (Branta bernicla nigricans) wintering along the Baja California Peninsula and Sonoran coasts of Mexico. The data include: (1) body mass and morphological measurements from sport hunter harvested brant, and (2) census counts of brant in Bahia de San Quintin, (3) counts for flock age ratio determination, and (4) behavior. Version History: First release: April 2023 Revised: February 2024 (ver. 2.0) Categories: Data, Data Release - Revised; Tags: Animal populations, Animals/Vertebrates, Bahia San Quintín, Baja California, Baja California Sur, All tags... Biota, Birds, Black Brant, Branta bernicla nigricans, Brent Goose, Coastal ecosystems, Ecological dynamics, Environment, Laguna Ojo de Liebre, Laguna San Ignacio, Mexico, Migratory birds, Population dynamics, Species life history, Species/population interactions, USGS Science Data Catalog (SDC), Waterfowl, Wildlife, Wildlife Biology, Fewer tags