Title

myrtleford LiDAR 

 

Time period

2022-08-102022-08-10 

 

Horizontal Accuracy

0.3m  

Vertical Accuracy

0.1m  

Code

MGA Zone 55 GDA2020 

 

 

Title

LAZ 1.4 (Compressed LAS) 

 

 

Topic category

• Elevation

 

Use limitation

General 

Classification

Unclassified  

 

 

Classification

Unclassified  

 

Attribute Quality

Positional Accuracy

Conceptual Consistency

Comments

ICSM Level 2+ classification was applied and the data files include RGB imagery point colourisation on all tiles. 

Missing Data

Comments

LiDAR data was captured and GNSS solutions applied as in following pages. Absolute and relative calibrations were applied to ensure a level surface. This data was then classified using automated and manual processes, culminating in in-house QA in a specialised environment. From here, adjustments were calculated and applied. DEMs were processed using ground point TIN processing and contours using a specially-thinned ground point subset. 

Excess Data

 

Platform Type

Aerial  

Assembly

Single  

Tile Size

1 km  

 

 

Scan Rate (Hz)

80Hz  

Scan Frequency (kHz)

450kHz  

Footprint Size (m)

0.30000001m  

Point Density Actual (pts/m2)

8points/m2  

Point Spacing Actual (pts/m)

0.34999999points/m2  

Ellipsoid Provided

1 

Ellipsoid Vertical Datum

GRS80 Ellipsoidal (ITRF2008)  

Ellipsoid Format

LAZ 1.4 (Compressed LAS)  

Geoid Vertical Datum

AUSGEOID2020  

Additional Adjustments

The survey was adjusted to State Survey Control Marks supplied by the Surveyor General of Victoria 

Environmental Conditions

LiDAR was captured under standard conditions suited for LiDAR survey with requirements for concurrent aerial photography being a secondary consideration. 

Tidal Conditions

Not Applicable to this block (or within +/- 2hrs of low tide if a coastal blocks) 

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