2006 DEM and DSM Models

Dataset Basics

Due to an early spring, the 2005 IndianaMap Orthophotography Project contains images with leaf-on conditions. The State of Indiana's vendor, Earth Data, created new 2006 elevation and surface models based on the 2006 Reflight Orthophotography dataset collected during February and March leaf-off conditions.  The following counties have select areas involved in reflights. The involved counties are Adams, Brown, Clark, Crawford, Daviess, Greene, Harrison, Hendricks, Huntington, Jackson, Jasper, Lawrence, Morgan, Newton, Noble, Orange, Owen, Pike, Porter, Posey, Spencer, St. Joseph, Wabash, Warrick, Wells, White, Dubois, Elkhart, Floyd, Kosciusko, Lake, Marion, Monroe, Perry, Steuben, Tippecanoe, and Vanderburgh. EarthData reflew Dubois and Perry Counties in their entirety. 

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.

Available Datasets

2006 Statewide Orthophotography (Digital Surface Model)

Digital Surface Model derived from the 2006 state imagery project. The images are grouped into archives by quadrangles.

2006 Statewide Orthophotography (Digital Elevation Model)

Digital Elevation Model derived from the 2006 state imagery project. The images are grouped into archives by quadrangles.

2006 Statewide Orthophotography (DSM Mosaics)

DSM Mosaics from the 2006 phase of the state orthoimagery project, which covers areas flooded during the 2005 imaging project. This dataset includes mosaics for two counties.

2006 Statewide Orthophotography (DEM Mosaics)

DEM Mosaics from the 2006 phase of the state orthoimagery project, which covers areas flooded during the 2005 imaging project. This dataset includes mosaics for two counties.

Data Availability

These files can be used with GIS software to view the tiling system for the high-resolution 2005/2006 ortho tiles.
Download State Plane East Index Shapefile 
Download State Plane West Index Shapefile  

This shapefile can be used to view the 2006 reflight paths for select areas in Indiana.
2006 Reflight Dates Shapefile 
2006 Reflights Image 

File Formats

  • 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 
     

Troubleshooting Tips

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.

 

Dataset Contact Information

Indiana Geographic Information Officer
Indiana Office of Technology
100 North Senate Ave.
N551 Government Center North
Indianapolis, IN 46204

Phone:  317-234-5889
For help with this dataset, please send an email to gio@iot.in.gov