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2010 Monroe County Orthophotography, LiDAR, Contours, and Elevation

Monroe County imageDownload

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Dataset Basics

The Monroe County GIS staff provided University Information Technology Services (UITS) at Indiana University staff with the Monroe County 2010 LiDAR, elevation, 2 foot contours, and 6 inch orthophotography datasets. The vendor, MJ Harden, used a Zeiss/Intergraph Digital Mapping Camera acquiring imagery at 4,800 feet which is suitable for 1"=100' scale mapping. The orthophotography source date is April 2, 2010. The metadata zip archive contains a shapefile of the individual tile's footprint for reference. Metadata is associated with each geotiff image as an xml file. UITS exported both the ortho and LiDAR xml metadata files to HTML format for viewing on this web page (see dataset information below).

The Light Detection and Ranging (LiDAR) LAS dataset is a topographic survey conducted for Monroe County, Indiana. The LiDAR Project consists of 525 tiles. The LiDAR point cloud was flown at a density sufficient to support a maximum final post spacing of 1.4 meters for unobscured areas and a planned vertical accuracy of better than 15 cm RMSEz. MJ Harden acquired 47 flightlines during two lifts on April 11 and April 12, 2010, using an Optech Gemini system. This accuracy exceeds FEMA surface requirements for 2‐foot contour intervals.The data was divided into 5000' by 5000' cells that serve as the final tiling scheme. The bare-earth surface contains voids in some areas such as those densely vegetated, covered by bridges, buildings, water, fresh asphalt, and sand. The vendor delivered the LiDAR mass points in American Society for Photogrammetry and Remote Sensing LAS 1.2 format.

Available Files

Orthophotography Metadata
Individual tiles: Uncompressed geotiff; compressed (10:1) ecw
Mosaiced county images: MrSID Gen3; ECW (multi-volume zip archive)

Contours
The original contours created from LiDAR and derived smoothed contours in both shapefile and dxf formats. 

Elevation
Bare earth DEM in ESRI 5 foot grid (ASC format)
The DEM includes modifications at bridges, overpasses and areas with major terrain irregularities

LiDAR Metadata
Classified LiDAR point cloud data in LAS file format, version 1.2 
 

Spatial Reference

Coordinate System:  NAD_1983_StatePlane_Indiana_West_FIPS_1302_Feet 
Units of Measure:  us_survey_feet 
Horizontal Datum:  NAD83 
Spheroid:  GRS 1980 
EPSG Code: 2966 
Vertial: GEOID NAVD1988

Monroe County Data Disclaimer

This is a public domain dataset with no use restrictions.

All geographic information systems (GIS) data and electronic database materials, and any services which may be provided related thereto, are provided "as-is" without any warranty of any kind, and all warranties of merchantability and fitness for a particular purpose are hereby disclaimed. In no event shall Monroe County be liable to the recipient or any other party for damages of any type, including but not limited to incidental, consequential or exemplary damages arising out of the use or inability to use these materials. This agreement shall be governed by the law of Indiana, where any litigation arising hereunder shall take place. The agreement is the complete and exclusive statement of the agreement between the parties and may be modified only by a written agreement.

Data downloaded from this site may be inaccurate or incomplete, and are subject to change. Monroe County has provided Metadata that describe the characteristics of the data accessible from this site.

Dataset Contact Information:

Kurt Babcock, Monroe County GIS Coordinator
Monroe County Government
119 W 7th Street
Monroe County Health Building, RM 20
Bloomington, IN 47404
P: 812‐349‐2048
F: 812‐339‐7558
E: kbabcock@co.monroe.in.us

For help, please send an email to gis@co.monroe.in.us