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GEODATA TOPO 2.5M 2003

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.


Dataset citation

ANZLIC unique identifier: ANZCW0703005761

Title: GEODATA TOPO 2.5M 2003


Custodian

Custodian: Geoscience Australia

Jurisdiction: Australia


Description

Abstract:

The GEODATA TOPO 2.5M 2003 product is a national seamless data product aimed at regional or national applications. It is a vector representation of the Australian landscape as represented on the Geoscience Australia 1:2.5M general reference maps and is suitable for GIS applications.

It superscedes the TOPO 2.5M 1998 product by being developed according to GEODATA standards. It has also been derived from GEODATA TOPO 250K Series 2 data where it was available (else GEODATA TOPO 250K Series 1). All features have also been revised in 2003 and have double precision accuracy.

The product consists of eleven layers, including: built-up areas; contours; drainage; framework; localities; offshore; rail transport; road transport; sand ridges; Spot heights; and waterbodies.

ANZLIC search words:

  • BOUNDARIES Administrative Mapping
  • LAND Geography Mapping
  • LAND Topography Mapping
  • MARINE Coasts Mapping

Spatial domain:

locality map

Geographic extent name: AUSTRALIA EXCLUDING EXTERNAL TERRITORIES - AUS - Australia - Australia

Geographic extent polygon: 112 -9, 154 -9, 154 -44, 112 -44, 112 -9,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:
North bounding latitude: -9 °
South bounding latitude: -44 °
East bounding longitude: 154 °
West bounding longitude: 112 °

Data currency

Beginning date: Not Known

Ending date: 2003-05-01


Dataset status

Progress: Complete

Maintenance and update frequency: Not Known


Access

Stored data format:
DIGITAL - e00 ArcInfo export (e00) ArcInfo Workstation Geographic GDA94
Available format type:
DIGITAL - e00 ArcInfo export (e00) ArcInfo Workstation Geographic GDA94
DIGITAL - mif MapInfo Interchange Format (MIF) MapInfo Geographic WGS84
DIGITAL - shp ArcView shape file ArcView Geographic GDA94

Access constraints:

The data are subject to Copyright. Data files may be downloaded from Geoscience Australia's website at www.ga.gov.au/download/. A licence agreement is required.

Free Data Download

Data quality

Lineage:

Data for the Contours, Offshore, and Sand ridge layers was captured from 1:2.5 million scale mapping by scanning stable base photographic film positives of the original map production material. The key source material for Built-up areas, Drainage, Spot heights, Framework, Localities, Rail tranport, Road transport and Waterbodies layers was GEODATA TOPO 2.5M 2003.

Positional accuracy:

GEODATA 2.5M 2003 data comply with the following statement of planimetric accuracy: `Not more than 10% of well-defined points are in error by more than 1400 metres?.

Attribute accuracy:

For this product, attribute accuracy is a measure of the degree to which the attribute values of a feature agree with the information on the source material. The allowable error in attribute accuracy ranges between 0% and 5%. Where less than 1% of errors are permissible, the entire population is tested. A full description of the checks on the data, the test sample size and the allowable error are provided in the product user guide of GEODATA TOPO 2.5M 2003.

Logical Consistency:

Logical consistency is a measure of the degree to which the data complies with the technical specification. The data was tested using a mixture of ArcInfo and UNIX programs. This included checking of the naming of tables and files and graphical tests to check intersections, polygon closures, and minimum size of polygons and topological relationships.

Completeness:

All instances of a feature and its attribute values that appear on the source material are captured unless otherwise indicated. The completeness was tested by assessing the data against the supplied and quoted source material, carrying out visual comparisons and data comparisons as required


Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

Metadata information

Metadata date: 2013-03-08


Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703005761.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703005761.xml

Size of dataset: 21.9-41.4 MB depending on the format

Scale/resolution: 1:2.5 million

Authors:GEODATA
SPATIAL INFORMATION FOR THE NATION