Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803001008 

Victorian Spatial Data Library (VSDL) Schema

FORESTS:FCOV1000_1869 

Jurisdiction

Victoria 

Topic category

• Biota
• Farming

Resource Constraints

Classification

Unclassified  

Creative Commons Attribution 4.0 (CC-BY)

• 
• License Text

Other Dataset Details

Date ( Revision )

2017-03-08

Date ( Publication )

2018-02-01T11:16:51

Status

Completed  

Purpose

This layer has primarily been used to quantify changes in forest cover since European settlement. 

Credit

A. Everett (1869), Adam Choma, Peter Woodgate. 

Supplemental Information

Relationship to other Datasets: The 1869 forest cover data set will constantly be used in conjunction with more contemporary version of forest cover to provide forest cover change estimates. The forest cover boundary has been registered to the 1:500 000 stream base. Current Design Issues: Since this data set is from the one source and only differentiates presence and absence of forest cover, only one attribute has been used in the layer design. Future Design Issues: The original manuscript from which the 1869 forest cover boundary was captured also differentiates broad forest types. There are proposals to capture this information, and this will subsequently require the addition of a forest type attribute. As the data set is refined using historical records, and biophysical data sets like landsystems to refine obvious anomalies, a source attribute will also be required. Related Documents: None Everett, A (1869) Victoria: Distribution of Forest Trees. Revision of color map engraved by William Sligh under the direction of R. Bough-Smyth FGS in 1866. The original map is held in the Museum of Victoria. 

Maintenance and update frequency

Unknown  

Maintenance date ( Publication )

2018-02-01T11:16:51

Spatial

Spatial representation type

Vector  

Reference system identifier

4283

Temporal

Begin date

1860-12-31 

End date

1869-12-31 

Resolution

Horizontal Accuracy

1000m  

Quality

Conceptual Consistency

Not relevant, only one item. 

Missing Data

Completeness of coverage The data set is complete for Victoria. Completeness of coverage The data set is complete for Victoria. 

Attribute Quality

Due to the small number of areas involved, and checking procedure envoked, an attribute accuracy of 100% is estimated. 

Positional Accuracy

Precision: 1 km. to 10 km. Determination: Deductive Estimate. Based on the 1 1 000 000 scale at which information was captured, a 1 to 3 mm error translates to a 1 to 3 km positional accuracy. This does not take into account the inaccuracies present in the historical map. 

Lineage

Statement

Dataset Source: Historical color forest trees map engraved by William Sligh under direction of R. Bough-Smyth FGS, in 1866, and revised by A. Everett in 1869. The original map was compiled from record maps in the Office of the Surveyor-General, and other authentic sources. In 1987, a color print was manually interpreted by Peter Black onto a 1 : 000 000 base map and subsequently digitised by Adam Choma using the 1:500 000 streams as a base. 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_1869	O	N	VARCHAR2	1						FOREST1869
AREASQM	O	N	NUMBER	22	18	2				AREASQM
HECTARES	O	N	NUMBER	22	18	2				HECTARES

About the Metadata Record

Metadata identifier

urn:uuid / 79730428-8cab-560c-b9c7-7247bce8b48b