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    • ABoVE: Dall Sheep Lamb Recruitment and Climate Data, Alaska and NW Canada, 2000-2015

    Metadata Updated: September 19, 2025

    This dataset contains estimated annual average Dall sheep (Ovis dalli dalli) lamb-to-ewe ratios for each year from 2000-2015 across the full species range in Alaska and Northwestern Canada. Sheep population data are from surveys conducted over the 14 major mountain ranges encompassing the range of Dall sheep. For this study, the mountain ranges were divided into 24 mountain units due to differing climate gradients. Estimated covariate environmental and climate data used to examine the relationship between environmental conditions and Dall sheep population performance (per mountain unit) are also provided and include precipitation, temperature, snow cover, elevation, and distance to the center of the range.

    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 April 11, 2025
    Metadata Updated Date September 19, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 11, 2025
    Metadata Updated Date September 19, 2025
    Publisher ORNL_DAAC
    Maintainer
    Identifier 10.3334/ORNLDAAC/1640
    Data Last Modified 2025-09-10
    Category Earth Science
    Public Access Level public
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    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 3bde374f-c08a-43a6-bf0c-082e5f2f0ea9
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://search.earthdata.nasa.gov/search?q=Dall_Sheep_Population_Dynamics_1640&ac=true
    Old Spatial {"WestBoundingCoordinate":-163.281,"NorthBoundingCoordinate":69.7074,"EastBoundingCoordinate":-123.547,"SouthBoundingCoordinate":59.5978},"CARTESIAN"
    Program Code 026:000
    Source Datajson Identifier True
    Source Hash 34cb98887a8b1f767d1e30fe63beeda829bdea63efbacfcb43eaebc07212e170
    Source Schema Version 1.1
    Spatial
    Temporal 2000-01-01/2000-01-01

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