2901.0 - Census Dictionary, 2011
ARCHIVED ISSUE Released at 11:30 AM (CANBERRA TIME) 23/05/2011
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Area (measurement) Area is calculated for regions in square kilometres using digital boundary data which define the Statistical Area Level 1 (SA1). The areas of other spatial units used in the Census are calculated by aggregating the areas of the component SA1s. The digital region boundaries are only representations of their 'real world' bounds. The real world boundary is complex, whereas the digital version is simplified. This results in a less than perfect measurement of the true area of the region. The degree to which the measured area is inaccurate is, in most cases, only slight. Calculation of the actual area of a SA1 is two dimensional. The effects of changes in elevation are not considered in the area calculations provided by the ABS. See also Statistical Area Level 1 (SA1).
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