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Elevation Data

LiDAR Central

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...LiDAR Elevation Data is Available for Download in Shapefile, LAS, GRID, and ASCII File Formats...

Download LiDAR Data

Contours in CAD DWG File Format Includes LiDAR Data

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LiDAR

Light Imaging Detection and Ranging

What Is LiDAR?

LiDAR uses the same principle as RADAR. The LiDAR laser sends a signal to the ground from an aircraft; some of this signal is sent (bounced) back to the aircraft; the time for the laser light to travel out to the ground and back to the aircraft is used to determine the distance to  the feature on the ground that it bounced off. A tree is going to be higher (taller) than the ground it is on; a house is going to be higher than the ground on which it was built. The "lay of the land" is recorded to a great accuracy.

All of the LiDAR Data available was collected in the Spring of 2007 as part of the

Statewide OSIP I Project.

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LiDAR Grid 2003 LiDAR Grid 2007

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2007 OSIP Digital LiDAR Data Metadata

Download the LiDAR Grid for 2007

Download the LiDAR Grid for 2003

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LiDAR Uses:

Archaeology United States Geological Survey 

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Sample Maps and Screen Shots & Video

 
LAS file view of a Profile for Downtown Wilmington

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New Vienna, Ohio

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Wilmington TIN

Bare Earth

 

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LIDAR Points

These are just the points, streight from the dwg file.

TIN (Triangulated Irregular Network)

This TIN is generated from the LIDAR Points as seen in the first image.

TIN GRID

This is a GRID (an image file used in ArcView) that was created from the TIN as shown in the previous image. A GRID image can be easily translated into a TIFF or a JPG file format, for use in a multiple number of applications.

Warped Aerial Photography

This is aerial photography from 2005 that has been warped over the Grid (in the previous image) that enables a 3-D affect if used with applications such as ArcScene.

 

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   VIDEO

New Vienna Fire Station Driveway Study Watershed Study
   
Point Cloud County Courthouse     

 

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