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    Vegetation - Great Valley Ecoregion [ds2632]

    Metadata Updated: September 17, 2019

    Geodatabase feature class containing a map of vegetation within the Great Valley Ecoregion produced by the Geographical Information Center (GIC) at CSU Chico. The dataset combines both new mapping and the previously completed Central Valley Riparian and Sacramento Valley and the Southern San Joaquin Valley vegetation maps. Vegetation polygons were manually digitized as interpreted using the National Agricultural Inventory Programs (NAIP) 2009 (Central Valley Riparian and Sacramento Valley map), 2012 (Southern San Joaquin Valley map) and 2014 (balance of San Joaquin Valley) aerial imagery at a scale of 1:2000. The minimum mapping unit (mmu) for natural vegetation is 1.0 acre, with a minimum average width of 10 meters. The mmu for agricultural and urban polygons is 10 acres. Vegetation is attributed to the Group and Alliance level of the state and national vegetation hierarchy. In some cases, polygons were attributed only to Group or Macrogroup level when the Alliance could not be determined from photointerpretation. The map classification is based on the key to vegetation types in Buck-Diaz et al. 2012. The Central Valley and Sacramento Valley maps were assessed for Accuracy with an average users accuracy of 90.2% and users accuracy of 89%. The San Joaquin Valley portion of the map was field verified by the mappers but was not otherwise assessed for accuracy (see Supplemental Information below for details).

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

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    Dates

    Metadata Created Date September 17, 2019
    Metadata Updated Date September 17, 2019

    Metadata Source

    Harvested from State of California

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 17, 2019
    Metadata Updated Date September 17, 2019
    Publisher California Department of Fish and Wildlife
    Unique Identifier 23e4ef3d-19eb-41d9-9dbf-e51bc425c91a
    Maintainer
    BIOS_Admin
    Maintainer Email
    Public Access Level public
    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 3a426884-6971-40ff-998c-305e879376ac
    Harvest Source Id 653cc362-70fc-46e1-9fb1-e76815ee1c88
    Harvest Source Title State of California
    Data Last Modified 2019-09-12T05:03:37.038938
    Source Datajson Identifier True
    Source Hash 826b25f92f144763f7aa1a7de7bcf1ddeece6274
    Source Schema Version 1.1
    Category Natural Resources

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