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1259.0.30.001 - Australian Standard Geographical Classification (ASGC) Digital Boundaries (Intercensal), Australia, July 2009  
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 16/07/2009   
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GEOGRAPHY METADATA PROFORMA

Dataset Custodian

Title

Australian Standard Geographical Classification (ASGC) Digital Boundaries (Intercensal), Australia (cat. no. 1259.0.30.001)

Custodian

ABS Geography Section

Email: geography@abs.gov.au


Description

Abstract

The digital boundaries for this edition of the ASGC are consistent with the spatial units described in the structures of the ASGC 2009. Date of effect of this edition is 1 July 2009. Digital boundaries are for Statistical Local Area (SLA), Statistical Subdivision (SSD), Statistical Division (SD), Local Government Area (LGA), Statistical District (SDIST), Major Statistical Region (MSR), Statistical Region (SR), Statistical Region Sector (SRS) and State/Territory (STE).

Geographic Extent Name

Geographic Australia; including the external territories of Cocos (Keeling) Islands & Christmas Island but excluding all other external territories.

Data Currency

Beginning date: 1 July 2009

End date: Current

Data Status

Progress: Completed dataset

Maintenance and Update Frequency: No further updates are planned


Data Access

Stored Data Format

Digital as separate files for each level of the ASGC 2009 structures represented.

Available Format Type

MapInfo Interchange Format (mid/mif) and ESRI Shapefile Format (.shp)

Access Constraints

Copyright Commonwealth of Australia administered by the ABS.


Data Quality

Lineage

SLA boundaries are aligned to the PSMA digital topographic database. Higher level spatial units are aggregated from the SLA level.

Positional Accuracy

The PSMA topographic database to which boundaries are aligned was captured at scales which vary from 1:4,000 in urban areas to 1:250,000 in remote areas.

Attribute Accuracy

Geographical area codes and labels are 100% validated to the 2009 edition codes and labels of the structures represented. (Reference is cat. no. 1216.0).

Logical Consistency

Spatial units are closed polygons. Polygons are attributed with ASGC 2009 codes and labels. Slivers/bow-ties may be present within or between spatial units. These data include attribute records without spatial objects for administrative purposes.

Completeness

Four structures defined for the ASGC 2009 are represented - all levels of each of those structures are represented. The four structures represented are the Main Structure, Local Government Area Structure, Statistical District Structure and Statistical Region Structure.


Co-ordinate Systems

Datum

Geocentric Datum of Australia 1994 (GDA94)

Projection

Geographical (ie. latitudes and longitudes)

Metadata Date

July 2009

Additional Metadata

Reference: Australian Standard Geographical Classification (ASGC) 2009 (cat. no. 1216.0); Australian Standard Geographical Classification (ASGC) - Electronic Structures 2009 (cat. no. 1216.0.15.001) and Australian Standard Geographical Classification (ASGC) Correspondences 2009 (cat. no. 1216.0.15.002).


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