Goulburn Broken CMA - LiDAR
dataset
Dataset: Goulburn Broken CMA - LiDAR
Assembly: Single
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Citation proposal Citation proposal
Goulburn Broken CMA - LiDAR Department of Transport and Planning https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/c162fd81-f2b2-53ba-903f-822ac12acaa5 |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
- Acquisition Info
- Raster Data Details
- Raster Type Details
- Point Cloud Data Details
- Contour Data Details
- Survey Details
Simple
Description
- Title
- Goulburn Broken CMA - LiDAR
Temporal
- Time period
- 2010-12-022011-01-17
Spatial
- Horizontal Accuracy
- 0.2m
- Vertical Accuracy
- 0.1m
- Code
- MGA Zone 55 GDA94
Maintenance
Format
- Title
- LAS 1.2
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 in ellipsoid co-ordinates by logging against a position solution obtained from the onboard IMU and GPS and the Victorian CORS network. The LiDAR was then checked against an ellipsoid control composed of surveyed ground control points and adjusted if required. The ellipsoid co-ordinates were then reduced to AHD using AusGeoid09 (Beta 7 and V1.01). Checks against AHD control resulted in a further general and local adjustments where required. An automated algorithm, tailored to the project, was used to classify ground and non ground returns. The results were manually checked using intensity imagery and the algorithm adjusted and the process reiterated until a clean ground surface was produced. Points more than 30cm above the classified ground surface are classified as non ground.
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
Positional Accuracy
Conceptual Consistency
- Comments
- Accuracy of the ground surface under dense canopy may be reduced. Laser accuracy at swath edges may be reduced. There is no difference in the processing of returns over water and over land.
Missing Data
- Comments
- Gaps in the point cloud may have occurred due to gate range restrictions over areas with large terrain elevation differences. These were reflown to ensure full coverage. Gaps may occur due to diminished returns over water and materials with low laser reflectivity, such as black composite roofing.
Excess Data
Acquisition Info
- Platform Type
- Aerial
- Assembly
- Single
- Tile Size
- 1 km
Raster Data Details
Point Cloud Data Details
- Footprint Size (m)
- 0.36000001m
- Point Density Actual (pts/m2)
- 2points/m2
- Ellipsoid Provided
- 0
Contour Data Details
Survey Details
Sensor
- Title
- Leica ALS50
- Identifier
- Aerial
- Type
- LIDAR
Aerial Survey Details
- Runs
- 151
- Run Orientation
- Unknown
- Swath Width
- 1025
- Side Overlap
- 20
- Flying Height Unit
- agl metre
- Flight Height
- 2225
Overviews
Provided by
![](https://metashare.maps.vic.gov.au/geonetwork/srv/../images/logos/b1edbae3-b4a9-485d-a9c5-895f3deda748.png)
Views Views
c162fd81-f2b2-53ba-903f-822ac12acaa5
Access to the portal Access to the portal
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Associated resources
Not available