Vicmap Lite - Forest Polygon - 1:1,000,000 to 1:2,000,000

dataset: VMLITE_FOREST_SU3
This layer is part of Vicmap Lite and contains polygon features delineating forested areas. This Vicmap Lite dataset is suited for use between scales of 1: 1 million and 1 : 2 million. The polygons were sourced from TREE100. The level of attribute information, the number of features and the number of vertices has been simplified to suit the 1: 1 million - 1 : 2 million scale range. The concept of a Scale Use Code has been introduced to help control the level of detail displayed. THIS DATASET WAS LAST UPDATED IN AUGUST 2008 THIS DATASET WAS LAST UPDATED IN AUGUST 2008
 
Citation proposal Citation proposal
(2020)

Vicmap Lite - Forest Polygon - 1:1,000,000 to 1:2,000,000

Department of Transport and Planning
 

Simple

 
 

Description

Title
Vicmap Lite - Forest Polygon - 1:1,000,000 to 1:2,000,000 
Alternate title
VMLITE_FOREST_SU3 
Purpose
THIS DATASET WAS LAST UPDATED IN AUGUST 2008 
Supplemental Information
Related Documents: None 
Status
Completed  
 
 

Temporal

 
 

Spatial

Horizontal Accuracy
100m  
Code
4283 
 
 

Maintenance

Maintenance and update frequency
As needed  
 
 

Format

 
 

Contacts

  Point of contact

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Cited responsible party  

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Cited responsible party  

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Keywords

Topic category
  • Environment
  • Biota
 
 

Resource Constraints

Use limitation
Data available via DELWP Data Service Providers www.delwp.vic.gov.au/vicmapdsp or DataVic www.data.vic.gov.au For enquires relating to this product: vicmap.info@delwp.vic.gov.au 
Classification
Unclassified  
 
 

Lineage

Statement
Dataset Source: Derivation of this dataset uses 500 ha as the minimum polygon size and 600 m as the generalize weed tolerance. Processing details are defined in the Arc/Info aml tree100_simple.aml as follows: drop source cover items that may prevent dissolve working properly remove undersize tree cover polygons in source cover populate undersize hole polygons with a present value dissolve out undersize holes generalize remaining features populate undersize hole polygons created by the generalize with a present value populate large orphan tree cover polygons created by the generalize with a present value dissolve out undersize holes remove any remaining undersize tree cover polygons created by the generalize dissolve out any undersize holes within holes remove any label points in the world poly populate large orphan tree polygons created by the generalize with a present value Dataset Originality: Derived 
Description
Collection Method: Derived from source 
Description
Level of detail reduced to suit 1:1 million - 1:2 million scale range. Redundant attributes removed, Scale Use Code attribute added and populated. 
 
 

Metadata Constraints

Classification
Unclassified  
 
 

Quality

Attribute Quality
Comments
Not Known 
Positional Accuracy
Comments
The source line work was generalised using a 600m tolerance. 
Conceptual Consistency
Comments
Areas less than 500 ha that formed holes in the tree cover have been coded 'P' (present) and then dissolved out. 
Missing Data
Comments
Statewide coverage complete for Victoria 
Excess Data
 
 

Acquisition Info

 
 

Raster Data Details

 
 

Point Cloud Data Details

 
 

Contour Data Details

 
 

Survey Details

 
 

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