Central Highlands LiDAR

dataset
Dataset: Central Highlands LiDAR Assembly: Single
 
Citation proposal Citation proposal

Central Highlands LiDAR

Department of Transport and Planning

Description

Title
Central Highlands LiDAR 
 
 

Temporal

Time period
2019-07-012019-11-27 
 
 

Spatial

Horizontal Accuracy
0.3m 
Vertical Accuracy
0.1m 
Code
MGA Zone 55 GDA2020 
 
 

Format

Title
LAS 1.4 
 
 

Contacts

  Point of contact

  Custodian

 
 

Keywords

Topic category
  • Elevation
 
 

Resource Constraints

Use limitation
Departmental 
Classification
Limited Distribution 
 
 

Lineage

Description
RPS: LiDAR in this AOI was captured by RPS. The IMU and post processed airborne GPS logs were used to generate the LiDAR point cloud from the waveform instrument data. Raw LiDAR swaths were levelled to establish internal consistency, merged and 1km x 1km tiles in LAS v1.2 format were created. An automatic classification algorithm was applied in TerraScan software to produce an initial classification of ground (2) and unclassified (1). High and low noise points were automatically classified and allocated to class 7. On completion of the ground classification automatic algorithms were used to classify unclassified points to low vegetation (3), medium vegetation (4), high vegetation (5) and buildings (6). Review of the classification was completed on data present within the AOI only. The classification accuracy was not measured empirically. Manual editing of ground points were completed in areas where log piles were identified ¿ these log pile points were placed into 'unclassified' class 0. 
 
 

Metadata Constraints Metadata Constraints

Classification
Unclassified 
 
 

Quality

Attribute Quality
Positional Accuracy
Conceptual Consistency
Comments
LiDAR point cloud is supplied in LAZ (LAS 1.4 format). LAS files meet expected classification and point density specifications. 
 
Missing Data
Comments
Complete coverage of AOI 
 
Excess Data
 
 

Acquisition Info

Platform Type
Aerial 
Assembly
Single 
Tile Size
0.5 km 
 
 

Point Cloud Data Details

Scan Rate (Hz)
102Hz 
Scan Frequency (kHz)
400kHz 
Footprint Size (m)
0.23m 
Point Density Target (pts/m2)
8points/m2 
Point Density Actual (pts/m2)
9.44999981points/m2 
Point Spacing Target (pts/m)
0.34999999points/m2 
Point Spacing Actual (pts/m)
0.34points/m2 
Ellipsoid Provided
1 
Ellipsoid Vertical Datum
GRS80 Ellipsoidal (ITRF2008) 
Ellipsoid Format
LAS 1.4 
Geoid Vertical Datum
AUSGEOID2020 
Class Level
3 
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
3 0 1 1 1 1 1 1 1 1 1 1 0
 
 

Survey Details

Sensor

Title
Trimble AX60 
Identifier
Aerial

Type
LIDAR 
 

Aerial Survey Details

Runs
149 
Run Orientation
Various 
Swath Width
924 
Side Overlap
50 
Flying Height Unit
agl metre 
Flight Height
800 
 
 


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