Great Ocean Road MLS DEM

dataset
Dataset: Great Ocean Road MLS DEM Assembly: Single
 
Citation proposal Citation proposal

Great Ocean Road MLS DEM

Department of Transport and Planning
 

Description

Title
Great Ocean Road MLS DEM 
Resource Type
Dataset  
 
 

Temporal

 
 

Spatial

Spatial representation type
Grid  
Horizontal Accuracy
0.15m  
Code
MGA Zone 54 GDA2020 
 

 

Maintenance

 
 

Format

Title
ESRI Ascii 
 
 

Contacts

  Point of contact

 
 

Keywords

Topic category
  • Elevation
 
 

Resource Constraints

Use limitation
General 
Classification
Unclassified  
 
 

Lineage

Description
The DEM was generated using LiDAR point cloud class 2 (ground) to define the bare earth ground surface. LAStools las2dem command was used to generate the surface. This tool reads LIDAR points from the LAS/LAZ format (or some ASCII formats) and triangulates them temporarily into a TIN with a user defined interpolation distance. LAStools then applies a TIN to raster conversion to create the 10cm DEM raster dataset. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Positional Accuracy
Conceptual Consistency
Comments
The DEM surface is equivalent of a traditional and standard ground surface model and has been generated using the ground class LiDAR points. As such, the extent of the DEM varies in relation to the line of sight from the car mounted MLS sensor to the ground. In locations where the line of sight to the ground is interrupted close to the car, for example within towns or amongst close forest or cliiffs, the extent of DEM is relatively shorter than it is in more open landscapes. 
Missing Data
Comments
Complete coverage of Great Ocean Road. 
Excess Data
 
 

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  Associated resources

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