• Geospatial data for the Vegetation Mapping Inventory Project of Saguaro National Park

    Metadata Updated: March 24, 2022

    The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file geodatabase but older formats may exist as shapefiles.

    The products are designed with the goal of facilitating ecologically-based natural resources management and research. The vector (polygon) map is in digital format within a geodatabase structure that allows for complex relationships to be established between spatial and tabular data, and allows much of the data to be accessed concurrently. Each map unit has multiple photo attachments viewable easily from within the geodatabase, linked to their actual location on the ground. The Geographic Information System (GIS) format of the map allows user flexibility and will also enable updates to be made as new information becomes available (such as revised NVC codes or vegetation type names) or in the event of major disturbance events that could impact the vegetation. Unlike previous vegetation maps created by SODN, the map for Saguaro National Park was not created via in-situ mapping. Instead, we employed a remote sensing approach aided by our robust field dataset. The final version of the map was created in summer 2016. The map was created using the image-classification toolbox included in the spatial analyst extension for ArcMap (ESRI 2017). Using these tools, we performed a supervised classification with the maximum-likelihood classifier. This tool uses a set of user-defined training samples (polygons) to classify imagery by placing pixels with the maximum likelihood into each map class. We used a pixel size equivalent to the coarsest raster included in the classification, 30 meters.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided.

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    Metadata Created Date June 2, 2021
    Metadata Updated Date March 24, 2022

    Metadata Source

    Harvested from NPS-Harvest - NRSS Data Store

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 2, 2021
    Metadata Updated Date March 24, 2022
    Publisher National Park Service
    Unique Identifier Unknown
    Identifier NPS_DataStore_2286462
    Data First Published 2016-07-01
    Data Last Modified 2016-07-01
    Category Geospatial Dataset
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID D:\IRMA\DataStore\Application\OpenData\v1.1\NPS-DataStore.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
    Data Quality True
    Harvest Object Id 33c636d6-4d3a-40c6-aec9-4d401f063271
    Harvest Source Id a73e9b95-126c-4791-a8f2-46fc064cdc62
    Harvest Source Title NPS-Harvest - NRSS Data Store
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2286462
    Program Code 010:118, 010:119
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2286462
    Source Datajson Identifier True
    Source Hash 4a07cc99bd51b26d025bdc1b29087cac503bd621
    Source Schema Version 1.1
    Spatial -111.243828,32.1040268,-110.4985,32.3520622

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