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    • Imagery data for the Vegetation Mapping Inventory Project of Hopewell Furnace National Historic Site

    Metadata Updated: October 23, 2025

    This reference contains the imagery data used in the completion of the baseline vegetation inventory project for the NPS park unit. Orthophotos, raw imagery, and scanned aerial photos are common files held here.

    Aerial photographs were obtained by Kucera International, flown in April 2002, at a scale of 1:6000. The delineation of mapping polygons using onscreen digitizing is greatly facilitated by the availability of a single seamless digital image of the target area (i.e. extent of park). This is accomplished by scanning hard copies of aerial photography to create digital images and then geo-referencing and ortho-correcting each scanned image. These individual images are then digitally joined to create a single seamless digital aerial photo mosaic. The positional accuracy of the photo mosaic is then assessed by obtaining actual field coordinates for distinct landmarks in the digital image using global positioning system equipment. Field and digital image coordinates are then compared to assess the spatial accuracy of the digital image.

    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 September 12, 2025
    Metadata Updated Date October 23, 2025

    Metadata Source

    Harvested from DOI NPS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 12, 2025
    Metadata Updated Date October 23, 2025
    Publisher National Park Service
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/nps-datastore-2233792
    Data First Published 2002-04-01T00:00:00Z
    Data Last Modified 2002-04-01T00:00:00Z
    Category Imagery
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/nps-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 93f2e99c-54bb-4d0b-a12b-a2410d98a362
    Harvest Source Id d917c1a9-26b7-43ea-b8c5-c77ec750a850
    Harvest Source Title DOI NPS DCAT-US
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2233792
    Old Spatial -79.88284,36.29579,-75.251,40.6318436
    Program Code 010:119, 010:118
    Source Datajson Identifier True
    Source Hash 2838af3ec91ea0cffc3d4a4a1f31c9b6b074b79e0dde107704dd1b77e1e3884a
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -79.88284, 36.29579, -79.88284, 40.6318436, -75.251, 40.6318436, -75.251, 36.29579, -79.88284, 36.29579}

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