The size and composition of the Australian population has shifted since the dismantling of the discriminatory White Australia Policy during the 1970s, yet its immigration system and border control remain highly regulated. Despite this, detailed information about the specific locations that immigrants arrive to or depart from within Australia are not available. The picture is further compounded by inconsistencies in the measurement of flows and geographic boundaries over time. To address these issues, we obtained available immigration and emigration flow data provided by the Australian Bureau of Statistics at the state and territory level, and developed methods to harmonise the available data, estimate missing elements and disaggregate to a sub-state geography. The methods are applied to 19 birthplace-specific populations across 47 areas in Australia for annual time periods from 1981 to 2016. This research addresses the need for more detailed estimates of demographic events so that a better understanding of the mechanisms and differences underlying regional population change may be provided.

中文翻译：

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估算澳大利亚次州地区出入境和出境的一致且详细的时间序列

自从1970年代歧视性的《白色澳大利亚政策》废除以来，澳大利亚人口的规模和组成发生了变化，但其移民制度和边境管制仍然受到严格管制。尽管如此，仍无法提供有关移民到达或离开澳大利亚境内的特定地点的详细信息。随着时间流和地理边界的测量不一致，情况进一步复杂化。为了解决这些问题，我们获得了澳大利亚统计局在州和领地一级提供的可用移民和移民流量数据，并开发了各种方法来统一可用数据，估算缺失要素并分解为州以下的地理位置。