Title

South West Elevation - LiDAR 

Time period

2007-08-152007-09-17 

Horizontal Accuracy

0.35m  

Vertical Accuracy

0.1m  

Code

MGA Zone 54 GDA94 

Title

LAS 1.2 Classification Level 2 

Topic category

• Elevation

Use limitation

General 

Classification

Unclassified  

Description

Reduction of the ALS data proceeded without any significant problems. Laser strikes were classified into ground and non-ground points using a single algorithm across the project area. Further classification by algorithm was undertaken to distinguish above ground features, such as buildings and vegetation. Vegetation and building classification accuracy is at least 90%. Manual checking and editing of the data classification further improved the quality of the terrain model. 

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

The data is consistent with respect to their visual representation of the ground and non-ground features, continuity at the tile boundaries and representation of elevation values. 

Missing Data

Comments

The data is complete for the defined project extent. 

Excess Data

Platform Type

Aerial  

Assembly

Single  

Tile Size

2 km  

Scan Rate (Hz)

50000Hz  

Footprint Size (m)

0.16m  

Point Spacing Actual (pts/m)

0.69999999points/m2  

Ellipsoid Provided

0