Geospatial data for the Vegetation Mapping Inventory Project of Amistad National Recreation Area
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 TOP 2015 imagery was mosaiced and manipulated using image processing and segmentation techniques (e.g. unsupervised image classification, normalized difference vegetation index, etc.) to highlight any subtle vegetation signature differences. All of the preliminary results were evaluated for usefulness and the best examples were first converted to digital lines and polygons, were next combined with other relevant AMIS GIS layers (such as the roads network), and the results were used as the base layer for the new AMIS vegetation mapping effort. Building off the base layer, all relevant lines and polygons were exported as shapefiles and converted to ArcGIS coverages. The resulting coverages were run through a series of smoothing routines provided in the ArcGIS software. Following the smoothing, all digital line-work was manipulated to remove extraneous lines, eliminate small polygons, and merged polygons that split obvious stands of homogeneous vegetation. The cleaning stage was considered complete when all resulting polygons matched homogenous stands of vegetation apparent on the TOP 2015 imagery. At this point, the mapping shifted to manual techniques and all vegetation lines and polygons were visually inspected and manually moved, edited and/or updated as needed.
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:24"
]
|
| contactPoint |
{
"fn": "NPS IRMA Help",
"@type": "vcard:Contact",
"hasEmail": "mailto:NRSS_DataStore@nps.gov"
}
|
| 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. The TOP 2015 imagery was mosaiced and manipulated using image processing and segmentation techniques (e.g. unsupervised image classification, normalized difference vegetation index, etc.) to highlight any subtle vegetation signature differences. All of the preliminary results were evaluated for usefulness and the best examples were first converted to digital lines and polygons, were next combined with other relevant AMIS GIS layers (such as the roads network), and the results were used as the base layer for the new AMIS vegetation mapping effort. Building off the base layer, all relevant lines and polygons were exported as shapefiles and converted to ArcGIS coverages. The resulting coverages were run through a series of smoothing routines provided in the ArcGIS software. Following the smoothing, all digital line-work was manipulated to remove extraneous lines, eliminate small polygons, and merged polygons that split obvious stands of homogeneous vegetation. The cleaning stage was considered complete when all resulting polygons matched homogenous stands of vegetation apparent on the TOP 2015 imagery. At this point, the mapping shifted to manual techniques and all vegetation lines and polygons were visually inspected and manually moved, edited and/or updated as needed. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "AMIS_mapdata.zip",
"format": "ZIP",
"mediaType": "application/zip",
"description": "ArcGIS geodatabase with metadata, .mxd and layer files",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/636835?Reference=2272051"
},
{
"@type": "dcat:Distribution",
"title": "AMIS_simple3.zip",
"format": "ZIP",
"mediaType": "application/zip",
"description": "Simplified for the AGOL",
"downloadURL": "https://irma.nps.gov/DataStore/DownloadFile/636933?Reference=2272051"
}
]
|
| identifier | http://datainventory.doi.gov/id/dataset/NPS_DataStore_2272051 |
| issued | 2019-03-01T00:00:00Z |
| keyword |
[
"Accuracy Assessment",
"Classification",
"Geodatabase",
"Habitat Types",
"Imagery",
"NVC",
"NVCS",
"National Vegetation Classification",
"Plots",
"Releve",
"Relevé",
"Remote Sensing",
"USNVCS",
"Vegetation",
"Vegetation Inventory",
"Vegetation Map",
"Vegetation Mapping",
"botanical survey"
]
|
| landingPage | https://irma.nps.gov/DataStore/Reference/Profile/2272051 |
| modified | 2019-03-01T00:00:00Z |
| programCode |
[
"010:118",
"010:119"
]
|
| publisher |
{
"name": "National Park Service",
"@type": "org:Organization"
}
|
| spatial | -101.717651,29.4163723,-100.874237,29.8187656 |
| temporal | 2010-01-01/2019-01-01 |
| theme |
[
"Geospatial"
]
|
| title | Geospatial data for the Vegetation Mapping Inventory Project of Amistad National Recreation Area |
