Wednesday, May 25, 2016

Internet Sourced LiDAR Data

The availability of internet sourced LiDAR data seems to be a way to acquire high quality existing conditions data for a project, but many firms have found that using this data comes with a number of foreseeable but hard to quantify complications that can result in significant liability exposure. 

It is critical to make a thorough analysis of the original specifications for the dataset of interest, including the equipment used, its performance at the altitude used to acquire the data, the datum’s used to locate the data, classification schemes and even how stringent the control requirements used to adjust and place the data on the published datum’s was acquired. 

Few of those point clouds contain the hard information you need to analyze the dataset, but with some technical insight you can do enough homework to gain a level of comfort with data.

The purpose of this article is to provide you with some guidance in evaluating the validity and usefulness of that wonderful free LiDAR data you found on the internet.  Contact us today to learn more.