MetaShare PROD
Goulburn-Broken CMA - DEM
dataset
Dataset: Goulburn-Broken CMA - DEM
Assembly: Single
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Citation proposal Citation proposal
Goulburn-Broken CMA - DEM Department of Transport and Planning https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/f85298eb-9f68-53ea-909f-282c07931abf |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
Description
- Title
- Goulburn-Broken CMA - DEM
- Resource Type
- Dataset
Temporal
Spatial
- Spatial representation type
- Grid
- Horizontal Accuracy
- 0.3m
- Code
- MGA Zone 55 GDA94
Maintenance
Format
- Title
- ESRI Ascii
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
- The 1m DEM is a dataset representing ground surface elevation and is derived from the Ground classified LiDAR point cloud. A 1m grid is projected on a triangulated version of the un-thinned ground point dataset, where triangles have been drawn between the 3 nearest surrounding ground points. A weighted averaged elevation is adapted from the triangulated plane (interpolation type: triangulated height interpolation). The gridded DEM dataset has been interpolated across voids which may be caused by either no LiDAR returns due to water bodies, or removal of buildings, vegetation or other above ground features. No limiting on triangulation has been applied to avoid any voids to be left in the gridded DEM. The DEM has been generated for the full extent of the LiDAR coverage achieved.
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
Positional Accuracy
Conceptual Consistency
- Comments
- This dataset consists of every point that is part of the classified ground surface. All non-ground objects such as vegetation and man-made structures (eg. bridges, fences) have been removed from the DEM. The elevation values are continuous, floating point values.
Missing Data
- Comments
- No limiting on triangulation has been applied to avoid any voids to be left in the gridded DEM. The DEM has been generated across the full extent of the LiDAR data coverage achieved.
Excess Data
Overviews
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Views Views
f85298eb-9f68-53ea-909f-282c07931abf
Access to the portal Access to the portal
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Associated resources
Not available