Skip navigation and jump directly to page content
Indiana University
Choose site to be searched
Type search terms

banner-image

2005 IndianaMap Elevation and Surface Models

500x150 pixels, align rightDownload

Related Links


Dataset Basics

The State of Indiana's vendor, Earth Data, used auto correlation to create the 2005 elevation and surface models from the 2005 IndianaMap Color Orthophotography  collected during March and April leaf-off conditions at a minimum resolution of 1-foot statewide. The data cover the entire land area of the State of Indiana and consist of 4000 foot by 4000 foot high resolution tiles. The entire perimeter of the State is buffered by at least 1,000 feet.

For the DEM, the files are named as xxxxyyyy_DEM_SPW, where xxxx and yyyy represent the easting and northing coordinates (respectively) in state plane feet, divided by 1000, of the tile origin (the top-left pixel) and SPW designates State Plane West Zone. For the DSM, the files are names as xxxxyyyy_DSM_SPW, where xxxx and yyyy represent the easting and northing coordinates (respectively) in state plane feet, divided by 1000, of the tile origin (the top-left pixel) and SPW designates State Plane West Zone.

These files can be used with GIS software to view the tiling system for the high-resolution 2005 ortho tiles.
Download Index Shapefile -State Plane East (722KB ZIP)
Download Index Shapefile -State Plane West (697KB ZIP)

File Formats

 

Individual Tiles

Coordinate System Indiana State Plane Coordinate System 1983 
Horizontal Datum: NAD83 
Vertical spheroid name: WGS84
Vertical datum name: NAVD 88, CONTUS, GEOID99
Vertical elevation unit: feet
Vertical elevation type: height
Pixel Resolution: 5 foot 
File Format: ERDAS IMAGINE and geotiff 
Individual File Size: 1-3 MB

County Mosaics - Stateplane and UTM

Horizontal Spatial Reference System: Indiana State Plane Coordinate System 1983
Horizontal Datum: NAD83 
Vertical spheroid name: GRS 1980
Vertical datum name: NAVD 88, CONTUS, GEOID99
Vertical elevation unit: feet
Vertical elevation type: height
Pixel Resolution: 5 foot 
File Format: ERDAS IMAGINE

Coordinate System: UTM, Zone 16; EPSG Code 26916
Horizontal Datum: NAD83; Spheroid: GRS 1980
Vertical spheroid name: WGS 84
Vertical datum name: NAVD 88 (CONTUS) (GEOID99)
Vertical elevation unit: feet
Vertical elevation type: height
Pixel Resolution: 1.5 meter
File Format: GeoTiff
Note: May be more than one mosaic for each county

Trouble-Shooting Tips

GeoTIFF images in Indiana state plane map projections may not display correctly in some applications due to differences in linear units specified in EPSG codes. For more information, please see Why do GeoTiff images display incorrectly in some GIS applications?

When working with .tif DEM files in ArcGIS, the raster may be displayed with all black space. This can be corrected by calculating statistics for the .tif file. This process will create an .aux file where auxiliary information about the raster, such as statistics, will be stored.