2009 Marion County Orthophotography - page under construction

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The City of Indianapolis and Marion County acquired imagery during ?

The Indianapolis Mapping and Geographic Infrastructure System (IMAGIS) staff provided a copy of the tiled TIFF and MrSID MG3 images to University Information Technology Services (UITS) at Indiana University. UITS created Geotiffs and ECW compressed images.  All images and mosaics are in Indiana State Plane East 1301. The vendor provided FGDC metadata with an index map in shapefile format.

Use Constraints:

IMAGIS currently restricts the downloads of these images to Indiana University students, staff, and faculty.
This data is for planning purposes only and should not be used for legal or cadastral purposes.

File Formats

Each image is archived in a .zip file which includes the image and all ancillary files provided to UITS.

Tiles
Cell Size (X,Y): 0.5, 0.5; Block Width: 128; Block Height: 128
Pixel Type: Unsigned integer; Pixel Depth: 8 Bit
Units: Feet
File formats: Tiled TIFF, Tiled GeoTiff, GeoTiff with JPG compression (75 % quality), and ECW
Dataset size: 1,659 images (uncompressed Tiffs and Geotiffs are 224 GB total; ECW images are 3.08 GB total)
No Data: Images located on the perimeter of the dataset have No Data (0,0,0) regions.

Township Mosaics
Coordinate System: State Plane Indiana East 1301, NAD83, feet
Units: Feet
Target Compression Ratio: 20:1
Format: MrSID MG3

County Mosaic
Coordinate System: State Plane Indiana East 1301, NAD83
Units: Feet
Format: MrSID MG3 Note: This mosaic has a no data collar (multiple values for no data) around the perimeter

DataSet Contacts

Chuck Carufel, ccarufel@indygov.org 317-327-4957
Brad Fugate, brad.fugate@woolpert.com, 937-531-1349