@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/80e8d6f0-d4c2-4e7a-8a70-5540a99f2888> a dcat:Dataset ;
    dct:description """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.

To produce the digital map, a combination of 1:12,000-scale ortho imagery acquired in 2003, 2004, and 2005 and all of the GPS-referenced ground data were used to interpret the complex patterns of vegetation and land-use. All imagery was acquired from the U.S. Department of Agriculture - Farm Service Agency’s Aerial Photography Field Office and the National Agriculture Imagery Program. In the end, 32 map units (13 vegetated and 19 land-use) were developed and directly cross-walked or matched to corresponding plant associations and land-use classes. All of the interpreted and remotely sensed data were converted to Geographic Information System (GIS) databases using ArcGIS© software. Draft maps were printed, field tested, reviewed, and revised. One hundred-twenty four accuracy assessment (AA) data points were collected in 2006 and used to determine the map’s accuracy. After final revisions, the accuracy assessment revealed an overall thematic accuracy of 89%.

Project Size = 6,784 acres
San Antonio Missions National Historical Park = 844 acres
Map Classes = 32
13 Vegetated
19 Non-vegetated
Minimum Mapping Unit = ½ hectare is the program standard but this was modified at
SAAN to ¼ acre.
Total Size = 1,122 Polygons
Average Polygon Size = 6 acres
Overall Thematic Accuracy = 89%""" ;
    dct:identifier "NPS_DataStore_2233384" ;
    dct:issued "2007-05-01"^^xsd:date ;
    dct:modified "2007-05-01"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-100.5081 25.8369, -100.5081 36.3803, -81.2157 36.3803, -81.2157 25.8369, -100.5081 25.8369))"^^gsp:wktLiteral ] ;
    dct:title "Geospatial data for the Vegetation Mapping Inventory Project of San Antonio Missions National Historical Park" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "NPS IRMA Help" ;
            vcard:hasEmail <mailto:irma@nps.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/80e8d6f0-d4c2-4e7a-8a70-5540a99f2888/resource/6a5bd400-0090-4573-bec9-fbbeb5484272> ;
    dcat:keyword "accuracy-assessment",
        "amerigeo",
        "amerigeoss",
        "botanical-survey",
        "ckan",
        "classification",
        "geo",
        "geodatabase",
        "geoss",
        "habitat-types",
        "imagery",
        "national",
        "national-vegetation-classification",
        "north-america",
        "nvc",
        "nvcs",
        "plots",
        "releve",
        "remote-sensing",
        "united-states",
        "usnvcs",
        "vegetation",
        "vegetation-inventory",
        "vegetation-map",
        "vegetation-mapping" ;
    dcat:theme <%7B%22Geospatial%20Dataset%22%7D> .

<https://data.amerigeoss.org/dataset/80e8d6f0-d4c2-4e7a-8a70-5540a99f2888/resource/6a5bd400-0090-4573-bec9-fbbeb5484272> a dcat:Distribution ;
    dct:description "ArcGIS geodatabase with metadata, .mxd and layer file" ;
    dct:format "ZIP" ;
    dct:issued "2021-11-05T04:24:24.764615"^^xsd:dateTime ;
    dct:modified "2025-11-23T00:15:29.196464"^^xsd:dateTime ;
    dct:title "1 saangeodata.zip" ;
    dcat:accessURL <https://irma.nps.gov/DataStore/DownloadFile/612410?Reference=2233384> ;
    dcat:mediaType "application/zip" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .