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    • Change in Ragweed Pollen Season, 1995-2015

    Metadata Updated: March 22, 2024

    This figure shows how the length of ragweed pollen season changed at 11 locations in the central United States and Canada between 1995 and 2015. Data were provided by Dr. Lewis Ziska of the U.S. Department of Agriculture, Agricultural Research Service. Red circles represent a longer pollen season; the blue circle represents a shorter season. Larger circles indicate larger changes. For more information: www.epa.gov/climatechange/science/indicators

    Access & Use Information

    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 Date November 20, 2019
    Metadata Created Date March 22, 2024
    Metadata Updated Date March 22, 2024
    Reference Date(s) August 2, 2016 (publication)
    Frequency Of Update annually

    Metadata Source

    Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

    Other Data Resources

    Graphic Preview

    Change in length of ragwood pollen season

    Additional Metadata

    Resource Type Dataset
    Metadata Date November 20, 2019
    Metadata Created Date March 22, 2024
    Metadata Updated Date March 22, 2024
    Reference Date(s) August 2, 2016 (publication)
    Responsible Party U.S. Environmental Protection Agency, Office of Air and Radiation (Publisher)
    Contact Email
    Guid 8A53C09B-FAE2-419C-88EC-154EE3198792
    Access Constraints https://edg.epa.gov/EPA_Data_License.html
    Bbox East Long -89.401244
    Bbox North Lat 52.134392
    Bbox South Lat 30.632711
    Bbox West Long -106.647675
    Coupled Resource
    Frequency Of Update annually
    Graphic Preview Description Change in length of ragwood pollen season
    Graphic Preview File https://edg.epa.gov/data/PUBLIC/OAR/OAP/metadata/Thumbnails/Ragweed.png
    Graphic Preview Type PNG
    Harvest Object Id 3fb84ad6-da81-4030-a9c2-501b77349b3e
    Harvest Source Id 9b3cd81e-5515-4bb7-ad3c-5ae44de9b4bd
    Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
    Licence None. Please check sources, scale, accuracy, currency and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-106.647675, 30.632711], [-89.401244, 30.632711], [-89.401244, 52.134392], [-106.647675, 52.134392], [-106.647675, 30.632711]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System 102010
    Spatial Harvester True
    Temporal Extent Begin 1995-01-01
    Temporal Extent End 2015-01-01

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