Metashare UAT
Ellinbank - LiDAR
dataset
Dataset: Ellinbank - LiDAR
Assembly: Single
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Citation proposal Citation proposal
Ellinbank - LiDAR https://uat-metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/156fcceb-24c2-5580-9933-33ac0c2120dd |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
Description
- Title
- Ellinbank - LiDAR
- Resource Type
- Dataset
Temporal
Spatial
- Spatial representation type
- Point Cloud
- Horizontal Accuracy
- 0.18m
- Code
- MGA Zone 55 GDA94
Maintenance
Format
- Title
- LAS 1.2
Contacts
Point of contact
Keywords
- Topic category
-
- Elevation
Resource Constraints
- Use limitation
- General
- Classification
- Unclassified
Lineage
- Description
- LiDAR data captured using onboard GPS, IMU and network of ground basestations. Trajectories and laser data corrected initially using the AusGeoid09 and then adjusted to AHD using local PSMs. LiDAR data is classified into multiple ground and non-ground classes. Project model key points classified from Ground class automatically; Vegetation (high, medium and low) classified automatically; Bridges classified manually. Ground points are selected from the laser point cloud through iteratively building a triangulated surface model. The building size gives the starting surface point density and the iteration angle determines how close a point has to be to the surface to be included. Ground point thinning is an iterative process similar to ground point classification.
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
Positional Accuracy
Conceptual Consistency
- Comments
- Ground definition in vegetated terrain may contain localized areas with systematic errors or outliers which fall outside this accuracy estimate. Gaps may occur due to diminished returns over water and materials with low laser reflectivity, such as black composite roofing.The definition of the ground may be less accurate in isolated pockets of dissimilar terrain/vegetation combinations. Accuracy of the ground surface under or within dense canopy/vegetation may be reduced.
Missing Data
- Comments
- Gaps may occur due to diminished returns over water, under canopy and on materials with low laser reflectivity, such as black composite roofing.
Excess Data
Overviews
Provided by
Views Views
156fcceb-24c2-5580-9933-33ac0c2120dd
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Associated resources
Not available