GEOGRAPHY METADATA PROFORMA
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CATEGORY | ELEMENT | ELEMENT DESCRIPTION |
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Dataset | Title | ASGC (Edition 2007) Digital Boundaries, Australia (ABS cat. no. 1259.0.30.001) |
Custodian | Custodian | ABS Geography Section: 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 2007. Date of effect of this edition is 1 July 2007. 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 (S/T). |
| Geographic Extent Name | Geographic Australia; including the external territories of Cocos
(Keeling) Islands & Christmas Island but excluding all other external territories. |
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Data Currency | Beginning date | 1 July 2007 |
| Ending date | Current |
Data Status | Progress | Completed dataset |
| Maintenance & Update Frequency | No further updates are planned. |
Access | Stored data format | Digital as separate files for each level of the ASGC 2007 structures represented. |
| Available format type | MapInfo interchange format (.mid & .mif) and ESRI Shapefile (.shp) format. |
| Access constraints | Copyright Commonwealth of Australia administered by the ABS. |
Data Quality | Lineage | SLA boundaries are aligned to the PSMA digital topographic database used for ASGC 2006 boundary set (mid 2004 through early 2005). 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 & labels are 100 % validated to the 2007 edition codes & labels of the structures represented. (Reference is ABS cat no. 1216.0). |
| Logical Consistency | Spatial units are closed polygons. Polygons are attributed with ASGC 2007 codes & 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 2007 are represented - all levels of each of those structures are represented. |
Co-ordinate Systems | Datum | Datum GDA94 |
| Projection | Projection Lat/Long |
Metadata Date | Metadata Date | July 2007 |
Additional Metadata | Additional Metadata | Reference: Australian Standard Geographical Classification (ASGC) 2007 (ABS Cat. No. 1216.0) |
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