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These data layers are used to index the 2008/2009 USGS Color Ortho Imagery tiles and the DVD schemes used for their distribution. They are stored in ArcSDE as follows:
- COQ2008INDEX_POLY - 2008/2009 USGS Color Ortho Index (for GeoTIFF and MrSID 1,500m x 1,500m tiles)
- COQ2008MOSAICS15CM_POLY - 2008/2009 USGS Color Ortho MrSID 15cm Mosaics Index
- COQ2008MOSAICS30CM_POLY - 2008/2009 USGS Color Ortho MrSID 30cm Mosaics Index
See the PDF Index file size 1MB for more detail and as a reference when ordering or downloading the imagery.
The polygon attribute tables contains the following fields:
Attribute Description Contained in Feature Class(es) TILENAME Unique 8-digit ID for each 1,500m x 1,500m tile COQ2008INDEX_POLY RESOLUT Available resolution for the 1,500m x 1,500m tile:
- 15cm and 30cm
- 30cm Only
COQ2008INDEX_POLY MOSAIC15CM Name of MrSID mosaic comprising 15cm tiles
MOSAIC30CM Name of MrSID mosaic comprising 30cm tiles COQ2008INDEX_POLY
COQ2008 "Y" if flown in 2008, "N" if flown in 2009 COQ2008INDEX_POLY COQ2009 "Y" if flown in 2009, "N" if flown in 2008 COQ2008INDEX_POLY
These datalayers are maintained by MassGIS.
Last Updated 5/30/2013
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