Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803001009 

Victorian Spatial Data Library (VSDL) Schema

FORESTS:FCOV500_7287 

Jurisdiction

Victoria 

Topic category

• Biota
• Farming

Resource Constraints

Classification

Unclassified  

Creative Commons Attribution 4.0 (CC-BY)

• 
• License Text

Other Dataset Details

Date ( Revision )

2021-10-12

Date ( Publication )

2018-02-01T11:17:07

Status

Completed  

Purpose

This layer was used to identify Forest Cover Changes in Victoria from 1972 to 1987. This project was one of the first to utilise satellite data to produce a precise picture of the then current extent of Victoria's forest cover. By comparing satellite imagery from 1972 and 1987 it has been possible to determine the rate of clearing over the 15 year period. This coverage has since been used for strategic planning including the identification of agricultural land use categories. 

Credit

Adam Choma, Peter Woodgate and Peter Black 

Supplemental Information

History: August, 1994 *This layer's name was changed from FOREST500 to FCOV500_7287. *Item VERSION was dropped from the PAT table and the whole AAT Feature Attribute Table dropped due to lack or poor data.. *FOREST-72 and FOREST-87 item nams were changed; now FOREST_72 and FOREST_87 and forest indicators were change from YES/NO to P/A (Present/Absent). *Redundant layers FORCOV500-72 and FORCOV500-87 were removed from the library.. *FOCOV500-90 layer was also archieved as the TREE100_90 contains better data for the same period. Relationship to other Datasets: Several other layers, including LANDUSE250, has used this data. Current Design Issues: This layer design is very simple and requires no further explanation. Future Design Issues: This layer is largely obsolete being replaced by data head in the TREE100 layers series. Related Documents: None Forest Cover Changes in Victoria 1969-1987 (1988); Department of Conservation, Forests and Lands 

Maintenance and update frequency

Unknown  

Maintenance date ( Publication )

2018-02-01T11:17:07

Spatial

Spatial representation type

Vector  

Reference system identifier

4283

Temporal

Begin date

1972-01-01 

End date

1987-12-31 

Resolution

Horizontal Accuracy

500m  

Quality

Conceptual Consistency

The two items FOREST_72 and FOREST_87 are independent. 

Missing Data

The data set is complete. The data set is complete. 

Attribute Quality

Interpreted forest cover boundaries were checked using a variety of sources. These included existing vegetation maps, softwood plantation records and consultation with individuals familiar with specific areas. There is no statistical estimate of accuracy. 

Positional Accuracy

Precision: 1 km to 10 km. Determination: Deductive Estimate 

Lineage

Description

Public land boundaries were obtained from the Land Conservation Council's (LCC) Public Land Use Map of Victoria, 1988 (scale 1:500 000) and digitised. The 1986/87 forest cover boundaries were manually mapped onto the public land boundaries from the Landsat MSS color transparencies at a scale of 1:500 000 using the KARTOFLEX analogue mapping device and digitised. The 1972/73 forest cover boundaries were then mapped onto the 1986/87 forest cover from the Landsat MSS transparencies using the KARTOFLEX and the cover updated. Due to spatial errors and inaccuracies in the LCC Public Land Use base, forest cover information was "massaged" to fit these boundaries. That is, some of spatial accuracy of the satellite data was lost. 

Statement

Dataset Source: 1972/73 and 1986/87 LANDSAT MSS imagery Dataset Originality: Primary 

Attributes

Column Name	Obligation	Unique	Data Type	Data Length	Data Precision	Data Scale	Reference Table Owner	Reference Table Name	Reference Table Code Column Name	Short Column Name	Definition
FOREST_87	O	N	VARCHAR2	1						FOREST_87
HECTARES	O	N	NUMBER	22	18	2				HECTARES
AREASQM	O	N	NUMBER	22	18	2				AREASQM
FOREST_72	O	N	VARCHAR2	1						FOREST_72

About the Metadata Record

Metadata identifier

urn:uuid / 3f323b20-c0e0-5311-bfe0-512ec0692461