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    • Selected Peak-Flow Special Conditions for USGS Streamgages in Alaska

    Metadata Updated: November 8, 2024

    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, glacier and debris dammed lake outburst, sediment dammed lake outburst, mass failure/lake outburst, landslide debris dam breakup, beaver dam breakup, natural flow diversion, or subsidence from detonation subcategories. Data sources used to verify the basis for the codes included reports, online data, and USGS streamgaging notes.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date November 29, 2023
    Metadata Updated Date November 8, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 29, 2023
    Metadata Updated Date November 8, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/1056ad46b7fa446053830831a5d4d9a3
    Identifier USGS:ASC573
    Data Last Modified 20240124
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://datainventory.doi.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 06895c11-0548-4345-9547-2da2d29dc43d
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial 179.1219842,51.4759179,-130.0669823,70.4953764
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash 8e2335ec6fded43f655bc15e3cbac66f894e5d5b8e12928c68cf44780b966b49
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": 179.1219842, 51.4759179, 179.1219842, 70.4953764, -130.0669823, 70.4953764, -130.0669823, 51.4759179, 179.1219842, 51.4759179}

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