Title

Vicmap Lite - Public Land Classification Polygon - 1:1,000,000 to 1:5,000,000 

Alternate title

VMLITE_PUBLIC_LAND_SU3 

Purpose

THIS DATASET WAS LAST UPDATED IN AUGUST 2008 

Supplemental Information

Related Documents: None 

Status

Completed  

Horizontal Accuracy

100m  

Code

4283 

Maintenance and update frequency

As needed  

Topic category

• Environment

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  

Statement

Dataset Source: The dataset is derived from PLMMT100PLY via an ARC/INFO aml process called plmgen.aml This process performs the following steps. 1: copy the latest version of PLMMT100PLY from the SDE update area. 2: drop unwanted marine polygons. 3: add a field that reflects the "aspect ratio" of features in order to eliminate long skinny features. 4: drop unwanted polygons asssociated with linear features (ratio less than 100). 5: join mmtsource.lut items so that MMTGEN_ID value can be determined. 6: regroup polygons in source cover based on mmtgeneral and state values. 7: dissolve polygons in source cover based on plmgroup values. 8: eliminate undersize polygons in source cover based on scale code. 9: drop unwanted polygons where area less than 1000 ha. 10: generalize polygons in source cover using weed tolerance of 2000m. 11: dissolve remaining polygons in source cover based on plmgroup values. 12: copy resultant cover to SDE update area and load into SDE via SDMP process. Dataset Originality: Derived 

Description

Collection Method: Derived from source 

Description

Level of detail reduced to suit 1:1 million - 1:5 million scale range. Redundant attributes removed, Scale Use Code attribute added and populated. 

Classification

Unclassified  

Attribute Quality

Comments

COASTAL WATERS - term defines states water jurisdiction, being 3 nautical miles from the high water mark.. MARINE PARKS AND RESERVES - term to include marine national parks, marine sanctuaries, marine parks, marine reserves and marine & coastal parks, but excludes marine aquaculture areas. OTHER PUBLIC LAND - term to include coastal reserves, forest parks, public land water frontages, water production, community use areas, alpine resorts, marine aquaculture areas, earth resources (mining) areas, stone reserves, services & utilities areas, and uncategorized public land. PARKS AND RESERVES - term to include national parks, state parks, regional parks, coastal parks, national heritage park, wilderness parks, reference areas, nature conservation reserves, most natural features reserves, and historic & cultural features reserves. Excludes public land water frontages, community use areas, stone reserves, and CLRA reserves for services & utilities and so on. SOFTWOOD PLANTATION - term to include, only public land. Excludes hardwood plantations. STATE FOREST - term includes reserved forest. 

Positional Accuracy

Comments

The source line work was generalised using a 2000m weed tolerance. 

Conceptual Consistency

Comments

Areas less than 2000 ha that formed holes in the public land polygons or existed as discreet outlying areas have been deleted / eliminated. 

Missing Data

Comments

Statewide coverage complete for Victoria 

Excess Data

Comments

The original PLMMT100PLY mmtgeneral and state attributes are used to aggregate polygons into one of five broad management categories. These categories are: 1: Marine Parks and Reserves (State = 'Vic Coastal Waters') 2: Parks and Reserves (Mmtgeneral = 'Parks and Nature Conservation Reserves' OR 'Other Reserves' OR 'National Parks Act & Nature Conservation Reserves' OR 'Other Conservation Reserves') 3: State Forest (Mmtgeneral = 'State Forest') 4: Softwood Plantation (Mmtgeneral = 'Softwood Plantation') 5: Other Public Land (Mmtgeneral = 'Other Public Land' OR 'Unknown' OR 'Commonwealth Land')