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. After the field sampling was complete, aerial photograph signatures were verified for all of the associations using the classification plot data, Bell et al. (2002), and Elliman (2004) and (2005) data. These signatures were extrapolated to other areas within the park boundary that were not sampled. Using ARCGIS 9.1, polygon boundaries in the preliminary vegetation map were further edited and refined to develop a draft association-level vegetation map. Polygons were updated with USNVC association names and codes based on the classification plot data. Polygons that were attributed with land use - land cover categories in the preliminary vegetation map retained their attributes. The aerial photointerpretation key was updated. The thematic accuracy of this 2006 draft association-level vegetation association and land use map was then assessed for accuracy.

Resources

Format	Description	Link
57	ArcGIS geodatabase with metadata, .mxd and layer file	https://irma.nps.gov/DataStore/DownloadFile/610477?Reference=2246187
57	ArcGIS geodatabase shapefiles	https://irma.nps.gov/DataStore/DownloadFile/588320?Reference=2246187
57	ArcGIS geodatabase metadata	https://irma.nps.gov/DataStore/DownloadFile/588321?Reference=2246187
57	ArcGIS geodatabase with metadata, .mxd and layer file	https://irma.nps.gov/DataStore/DownloadFile/588319?Reference=2246187

Geospatial data for the Vegetation Mapping Inventory Project of Boston Harbor Islands National Recreation Area

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