In August 2005, Hurricane Katrina devastated the Gulf Coast of the United States, leaving in its wake an unprecedented loss of life and property damage.
Among the critical infrastructure the storm impacted was the levee system that controls the Mississippi River’s flow around the city of New Orleans.
In the aftermath of this most destructive storm, a surveying firm was approached by a client seeking a survey of the existing levee system to be carried out with an accuracy standard of 3 to 5 cm. First they sought airborne LiDAR data (surveying the levees from an aircraft flying overhead using an airborne laser scanner), correctly assuming this would be the fastest way to gather accurate topographic position data.
The survey firm informed the client of another option, mobile LiDAR mapping. Like airborne mapping, terrestrial mobile mapping exploits the same technology, LiDAR (LIght Detection And Ranging).
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