3DEP Table 1. Lidar quality level requirements defined in LBS

Table 1. Lidar quality level requirements defined in the 3DEP Lidar Base Specification

Detailed Description

Topographic Quality Levels

Table 1. Lidar quality level requirements defined in the 3DEP Lidar Base Specification

Quality LevelData SourceVertical Accuracy RMSEz (cm)Nominal Pulse Spacing (NPS)  metersNominal Pulse Density (NPD) points per square meterDigital Elevation Model (DEM) cell size (meters)
QL0Lidar5 cm≤ 0.35 m≥ 8 pts/square meter0.5 m
QL1Lidar10 cm≤ 0.35 m≥ 8 pts/square meter0.5 m
QL2Lidar10 cm≤ 0.35 m≥ 2 pts/square meter1 m
QL3Lidar20 cm≤ 0.35 m≥ 0.5 pts/square meter2 m
QL4Imagery139 cmN/AN/A5 m
QL5IfSAR185 cmN/AN/A5 m

 

Details

Image Dimensions: 2990 x 952

Date Taken:

Location Taken: US

Source:

3DEP Standards and Specifications
Topographic Quality Levels