MetaShare PROD
Glenthompson - LIDAR
dataset
Dataset: Glenthompson - LIDAR
Assembly: Single
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Citation proposal Citation proposal
Glenthompson - LIDAR Department of Transport and Planning https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a9f65e4c-e32f-5564-b1b0-61cfed821b30 |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
Description
- Title
- Glenthompson - LIDAR
- Resource Type
- Dataset
Temporal
Spatial
- Spatial representation type
- Point Cloud
- Horizontal Accuracy
- 0.3m
- Code
- MGA Zone 54 GDA94
Maintenance
Format
- Title
- LAS 1.3
Contacts
Point of contact
Department of Transport and Planning
-
Coordinated Imagery Program
PO Box 500
East Melbourne
Victoria
3002
Australia
Keywords
- Topic category
-
- Elevation
Resource Constraints
- Use limitation
- General
- Classification
- Unclassified
Lineage
- Description
- LiDAR was acquired over each project/site area. The acquired LiDAR strikes were transformed into an ellipsoid point cloud using a solution obtained from the onboard IMU and GPS and Victorian CORS network. The point cloud was then adjusted to AHD using AusGeoid09. Checks against an network of surveyed ground control resulted in further general and local adjustments where required. Reduction of the LiDAR data proceeded without any significant problems, Laser strikes were classified into ground and non-ground points using a single algorithm across the project area. Manual checking and editing of the data classification further improved the quality of the terrain model.
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
Positional Accuracy
Conceptual Consistency
- Comments
- Accuracy of the ground surface under dense canopy may be reduced due to diminished returns. Laser accuracy at swath edges may be reduced. Classification algorithms have been tailored for common terrain/vegetation combinations across the project area. Classification accuracy and ground definition may be less accurate in uncommon terrain/vegetation combinations.
Missing Data
- Comments
- The point cloud data is complete for the defined project extent. Gaps may occur due to diminished returns over water, under canopy and on materials with low laser reflectivity, such as black roofing or swimming pools.
Excess Data
Overviews
Provided by
Views Views
a9f65e4c-e32f-5564-b1b0-61cfed821b30
Access to the portal Access to the portal
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Associated resources
Not available