2017 LiDAR Data
Project Report
Digital Elevation Model (DEM)
Classified LiDAR (LAS)
Contours
Tiled Contours and Tile Grid
Intensity Imagery
Breaklines
Low Confidence Polygons
Extents
Survey Data
Aquisition Data
Metadata
Raw LiDAR Swaths On Request
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The overviews below are excerpts from metadata for the dataset. Please refer to the Project Report and Metadata for complete explanations of spatial accuracy.
Horizontal Accuracy Overview:
This data set was produced to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 1.35 ft (41 cm) RMSEx/RMSEy Horizontal Accuracy Class which equates to Positional Horizontal Accuracy = +/- 3.28 ft (1 meter) at a 95% confidence level.
Vertical Accuracy Overview:
This DEM dataset was tested to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 0.33 ft (10 cm) RMSEz Vertical Accuracy Class. Actual NVA accuracy was found to be RMSEz =0.14 ft (4.2 cm), equating to +/- 0.28 ft (8.5 cm) at 95% confidence level.