Wimmera CMA - Canopy Height

dataset
Dataset: Wimmera CMA - Canopy Height Assembly: Single
 
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Wimmera CMA - Canopy Height

Department of Transport and Planning
 

Description

Title
Wimmera CMA - Canopy Height 
Resource Type
Dataset  
 
 

Temporal

 
 

Spatial

Spatial representation type
Grid  
Horizontal Accuracy
0.3m  
Code
MGA Zone 54 GDA94 
 

 

Maintenance

 
 

Format

Title
ESRI Ascii 
 
 

Contacts

  Point of contact

 
 

Keywords

Topic category
  • Elevation
 
 

Resource Constraints

Use limitation
Departmental 
Classification
Limited Distribution  
 
 

Lineage

Description
Canopy height is defined as the vertical measurement between the ground and top of vegetation and is determined on a 2m cell basis. Canopy Height has been derived by subtracting the average height of the ground returns in each cell from the highest vegetation return in that cell, and has been calculated within 300m either side of the ISC river centre lines. Vegetation heights have been limited to a maximum of 99m above ground. Data has been removed within 1m of buildings to avoid errors related to building features underneath or above the vegetation. The height measurements are taken directly from the LiDAR data points. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Positional Accuracy
Conceptual Consistency
Comments
The Canopy Height values are expressed in metres and are continuous, floating point values. 
Missing Data
Comments
The Canopy Height dataset has been created to an extent 300m either side of the river centreline. 
Excess Data
 
 

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