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Marion County 1997 multi-spectral ortho imagery was provided by the Indianapolis Mapping and Geographic Infrastructure System (IMAGIS). The images were captured using an ADAR System 5500 remote sensing platform, resulting in a four band RGB and near infrared image.
The Center for Earth and Environmental Science (CEES) at IUPUI rectified and processed the imagery for the Indianapolis Mapping and Geographic Infrastructure System (IMAGIS). A shapefile index showing the image boundaries is availalble by downloading the archived metadata file. The data delivered included some errors and omissions that could not be recovered or repaired. This information was not replaced and is missing in the county mosaic. An item in the shapefile attribute table called COMPLETE indicates which images have omissions.
Original-resolution images are available in ERDAS IMAGINE format. Compressed image mosaics (by CD-ROM) are available in MrSID format. A mosaic of the Indianapolis downtown is also available in IMAGINE and MrSID formats.
Coordinate System: IN State Plane East, Zone 1301 Horizontal Datum: NAD83
Pixel Resolution: 1.0 meter
File Format: ERDAS IMAGINE (4 MB/file)
File Format: MrSID mosaic (600 MB/file)
