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Topo 2.5M landmass mask of Australia


The dataset was derived by the Bioregional Assessment Programme from Geoscience Australia GEODATA TOPO series - 1:1 Million to 1:10 Million scale data (GUID: 310c5d07-5a56-4cf7-a5c8-63bdb001cd1a). You can find a link to the parent datasets in the Lineage Field in this metadata statement. The History Field in this metadata statement describes how this dataset was derived.

This dataset contains a landmass mask of Australia.


This mask has been developed to readily differentiate onshore and offshore areas thus allowing clear representation of data in the map by masking the offshore areas. It differs from the dataset Geoscience Australia Topographic 250K series 3 data (GUID: a0650f18-518a-4b99-a553-44f82f28bb5f) through the inclusion of the Gippsland Lakes.

This mask has been used in Gippsland Bioregional Assessment cartographic products to tidy overlapping layers or help display labels.

Dataset History

The 2.5 Million scale Mainlands and Islands layers from the Geoscience Australia GEODATA TOPO series - 1:1 Million to 1:10 Million scale data (GUID: 310c5d07-5a56-4cf7-a5c8-63bdb001cd1a) were clipped from a large rectangular extent layer of Australia within ESRI ArcMap 10.2. The mask area is essentially the non-land surface.

Dataset Citation

Bioregional Assessment Programme (2015) Topo 2.5M landmass mask of Australia. Bioregional Assessment Derived Dataset. Viewed 29 September 2017, http://data.bioregionalassessments.gov.au/dataset/4ffd342b-50b9-4dd2-b793-8bf5c4161428.

Dataset Ancestors

Data and Resources

Additional Info

Field Value
Title Topo 2.5M landmass mask of Australia
Type Dataset
Language eng
Licence Creative Commons Attribution 4.0 International, http://creativecommons.org/licenses/by/4.0/, (c) Commonwealth of Australia (Bioregional Assessment Programme http://www.bioregionalassessments.gov.au), (c) Commonwealth of Australia (Geoscience Australia) 2014
Data Status completed
Update Frequency notPlanned
Landing Page https://data.gov.au/data/dataset/6bd31a6e-1681-41f3-85ad-0b88ed373a51
Date Published 2016-03-29
Date Updated 2019-11-19
Contact Point
Bioregional Assessment Program
Temporal Coverage N/A - N/A
Geospatial Coverage POLYGON ((169.7 -61.3, 169.7 13.7, 98.3 13.7, 98.3 -61.3, 169.7 -61.3))
Jurisdiction Australia
Data Portal data.gov.au
Publisher/Agency Bioregional Assessment Program