Title

Castlemaine - LiDAR 

 

Time period

2019-09-172019-09-17 

 

Horizontal Accuracy

0.3m  

Vertical Accuracy

0.1m  

Code

MGA Zone 55 GDA94 

 

 

Title

LAS 1.4 

 

 

Topic category

• Elevation

 

Use limitation

Data Vic 

Classification

Limited Distribution  

 

Description

Proprietary ground classification routines in TerraScan were used to remove any non-ground points and generate an accurate ground surface. Once the ground surface had been generated a manual quality control routine was carried out using aerial imagery, hill shades, cross-sections, and profiles within the TerraSolid software suite to classify the above ground points. The vegetation was auto-classified using the height from ground method. A QA review and manual inspection was completed on a percentage of the classified tiles based on the project size and variability of the terrain. 

 

Classification

Unclassified  

 

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

The data adheres to the logical rules of data structure, attribution and relationships as per project specifications. 

Missing Data

Comments

Dataset is complete for 3D Regional POC project extents 

Excess Data

 

Platform Type

Aerial  

Assembly

Single  

Tile Size

1 km  

 

 

Pulse Mode

single 

Scan Rate (Hz)

0Hz  

Scan Frequency (kHz)

240kHz  

Scan Angle (degrees)

30degrees  

Footprint Size (m)

0.15000001m  

Point Density Target (pts/m2)

30points/m2  

Point Density Actual (pts/m2)

42.02999878points/m2  

Point Spacing Target (pts/m)

0.18000001points/m2  

Point Spacing Actual (pts/m)

0.15000001points/m2  

Ellipsoid Provided

1 

Ellipsoid Vertical Datum

GRS80 Ellipsoidal (ITRF1992)  

Ellipsoid Format

LAS 1.4  

Geoid Vertical Datum

AUSGEOID2020  

Class Level

2 

Classification

Class Level	Class 0 - Unclassified	Class 1 - Default	Class 2 - Ground	Class 3 - Low Vegetation	Class 4 - Medium Vegetation	Class 5 - High Vegetation	Class 6 - Buildings/Structures	Class 7 - Low/High Points	Class 8 - Model Key Points	Class 9- Water	Class 10 - Bridge	Class 12 - Flightline Overlap Points
2	0	1	1	1	1	1	1	1	0	1	1	0