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    • Spring leaf and bloom index dates (1880-2013) and migratory bird flyways

    Metadata Updated: July 6, 2024

    Historical values for the Extended Spring Index (SI-x) of First Leaf. Each pixel is assigned a day of year value for the First Leaf Index. The Extended Spring Indices are mathematical models that predict the "start of spring" (timing of leaf out or bloom for species active in early spring) at a particular ___location. This model was constructed using historical observations of the timing of first leaf in a cloned lilac cultivar (S. x chinensis 'Red Rothomagensis') and two cloned honeysuckle cultivars (Lonicera tatarica 'Arnold Red' and L. korolkowii 'Zabelii'). Primary inputs to the model are temperature events, beginning January 1 of each year. Layers are available for each year from 1880 to 2013. Input temperature data are historical BEST data at 1 degree resolution.

    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 June 1, 2023
    Metadata Updated Date July 6, 2024

    Metadata Source

    Harvested from DOI EDI

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 1, 2023
    Metadata Updated Date July 6, 2024
    Publisher U.S. Geological Survey
    Maintainer
    @Id http://datainventory.doi.gov/id/dataset/6f837a65f83dc36b032bca53d1bb782e
    Identifier USGS:5b75d10ee4b0f5d5787fea6f
    Data Last Modified 20200827
    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 6a09f6a3-dd08-4fe1-b211-161e3a0fcd95
    Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
    Harvest Source Title DOI EDI
    Metadata Type geospatial
    Old Spatial -180.0,0.0,0.0,90.0
    Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
    Source Datajson Identifier True
    Source Hash bee7eddf4491980a19b3a0365c728682743afb2878e36a78bfef35aee7e4ed53
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -180.0, 0.0, -180.0, 90.0, 0.0, 90.0, 0.0, 0.0, -180.0, 0.0}

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