Contacts

Identifiers and Keywords

ANZLIC Id

ANZVI0803003294 

Jurisdiction

Victoria 

Topic category

• Elevation
• Environment
• Geoscientific information

DELWP Categories

• Vicmap Products

Resource Constraints

Classification

Unclassified  

Creative Commons Attribution 4.0 (CC-BY)

• 
• License Text

Other Dataset Details

Date ( Revision )

2022-11-04

Status

Completed  

Purpose

Vicmap Elevation provides an accurate representation of natural relief features across Victoria, at a capture scale of 1:25,000. It is used in a variety of applications, particularly in emergency services, natural resource management, planning and development, and digital map publication. 

Format

SDE 10 

Supplemental Information

Relationship to other Datasets: ANZVI0803002639 Related Documents: None Please see Vicmap Elevation - 10-20 Contours & Relief product description for more detailed information on this product. This can be found on the Vicmap Elevation Webpage. https://www.land.vic.gov.au/maps-and-spatial/spatial-data/vicmap-catalogue 

Maintenance and update frequency

Irregular  

Spatial

Spatial representation type

Vector  

Description

General - Victoria 

Reference system identifier

4283

N

S

E

W

Temporal

Begin date

1974-01-01 

End date

now  

Resolution

Horizontal Accuracy

25m  

Quality

Conceptual Consistency

The allowable error in attribute accuracy ranges between 1% to 5% error. Logical consistency is a measure of the degree to which data complies with the technical specification. The test procedures are a mixture of scripts, microstation MGE program and on-screen visual checks. 

Missing Data

Complete 

Attribute Quality

The allowable error in attribute accuracy ranges between a 1% allowable error to 5% error. For this product attribute accuracy ranges between a 1% to 5% error. For this product attribute accuracy is a measure of the degree to which features and attribute values of spatial objects agree with the information on the source material. 

Positional Accuracy

The planimetric accuracy attainable will be the sum of errors from three sources:the positional accuracy of the source material, errors due to the conversion process, errors due to the manipulation process. For topographic base derived data this represents an error of 8.3m on the ground for 1:25,000 data. A conservative estimate of 10m for the standard deviation will be used in any data quality information. Alternate and equal ways of expressing this error are: not more than 10% of well-defined points will be in error by more than 16 m. The worst case error for the data is +/- 30 m. For vertical positional accuracy of points determined from contours there is an expectation that the elevation accuracy (standard deviation) will be half the value of the contour interval. 

Lineage

Description

- Conversion of existing mapping - compilation conversion 30% and repromat conversion 50% - digital stereo capture - 20% -The majority of the conversion of existing mapping and approximately 30% of the digital stereo capture were outsourced to private contractors and the remainder was captured in house. Contractor's primarily scanned and vectorised existing repromat with a small amount of hand digitising done in some instances. 

Statement

Dataset Source: The line work and points were derived from the Vicmap Digital Topographic (VDT) map base coordinated by LIG. VDT evolved from Victoria's printed 1:25,000 Topographic Map Series program together with the need to supply a control framework for the creation of the rural Digital Cadastral Mapbase. The capture scale is 1:25,000 Statewide and the coverage, except for minor border issues is also statewide. Dataset Originality: Primary 

About the Metadata Record

Metadata identifier

urn:uuid / d9abb196-05fb-5960-acf8-64fba74f1287