https://www.usgs.gov/centers/asc
Location
4210 University Dr
Anchorage
, Alaska
99508
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This data release contains the analytical results and the evaluated source data files of a geospatial analysis for identifying areas in Alaska that may have potential for sediment-hosted Pb-Zn (lead-zinc) deposits. The spatial analysis is based on queries of statewide source datasets 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. The results in geodatabase format are in SedPbZn_Results_gdb.zip. The analytical results for sediment-hosted Pb-Zn deposits are in a polygon feature class which contains the points...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: USGS Science Data Catalog (SDC),
geochemistry,
lead,
sediment,
zinc
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These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program, nearshore monitoring component. The dataset has one comma separated values (.csv) table with estimates of eelgrass (Zostera marina) percent cover. Eelgrass cover was estimated from sonar and video drop cameras deployed from boats following prescribed survey transects.
Categories: Data;
Tags: Alaska,
Alaska Peninsula,
Angiosperms (flowering plants),
Animal and plant census,
Aquatic Biology, All tags...
Biological productivity,
Biota,
Coastal ecosystems,
Ecosystem monitoring,
Eelgrass,
Environment,
Estuarine ecosystems,
Gulf of Alaska,
Katmai National Park and Preserve,
Kenai Fjords National Park,
Marine ecosystems,
Monocots,
Nearshore ecology,
Prince William Sound,
Relative abundance analysis,
Seagrass,
Seagrass beds,
USGS Science Data Catalog (SDC),
Wildlife Biology,
Zostera marina, Fewer tags
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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
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This dataset contains taxonomic information, counts, and lengths of macroinvertebrates collected from rivers in northwest Alaska using drift and kick nets during summer and fall 2015-2019.
Categories: Data;
Tags: Actinopterygii,
Age composition,
Alaska,
Animals/Invertebrates,
Animals/Invertebrates, All tags...
Aquatic Biology,
Aquatic Invertebrates,
Aquatic ecosystems,
Arachnida,
Arctic,
Arthropods,
Arthropods,
Biota,
Bivalvia,
Clitellata,
Ecology,
Entognatha,
Environment,
Freshwater ecosystems,
Gastropoda,
InlandWaters,
Insecta,
Macroinvertebrates,
Nemata,
Turbellaria,
USGS Science Data Catalog (SDC),
Water Quality, Fewer tags
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This dataset consists of sample descriptions and radiocarbon age data from coastal environments on Montague Island, Alaska, analyzed at the National Ocean Sciences Accelerator Mass Spectrometry Facility.
Categories: Data;
Tags: Alaska,
Biota,
Carbon-14 analysis,
Coastal processes,
Earth science, All tags...
Earthquakes,
Geology,
GeoscientificInformation,
Hazards,
Montague Island,
Prince William Sound,
Seismology,
Tectonic processes,
USGS Science Data Catalog (SDC), Fewer tags
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