Persistent Waterhole 200m-Segment data for NAWRA

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About this Collection

Persistent Waterhole 200m-Segment data for NAWRA

Persistent waterholes provide important refuge habitats. Waterhole persistence data shows the percentage of years where surface water has been identified along the stream channels during the driest period of the dry seasons from 1988 to 2015 and is derived from Landsat imagery. This dataset was created for the CSIRO Northern Australia Water Resourc... more

Environmental Monitoring



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NAWRA Fitzroy catchment (Western Australia) Darwin catchments (Northern Territory) Mitchell catchment (Queensland) Regional development Landsat Persistent waterholes


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The end-of-dry-season waterhole images from 1988 to 2015 were used along with an in-channel mask containing a 500m buffer from the watercourse which was divided into 200m segments along each streamline. This was done in ArcGIS where point locations at 200m intervals were extracted from the river lines (XTools Pro-> Feature Conversions->Convert Features to Points, fixed interval = 200m). These points were used to create Theissen polygons (ArcTools->Analysis Tools->Proximity-> Create Theissen Polygons) which in turn were clipped to a 500m buffer either side of the river line. The percentage of end-of-dry-seasons containing at least one pixel (30m x 30m) of water within each 200m segment was calculated. Permanent dams were masked out of the images.

The Australian Government commissioned CSIRO to complete the Northern Australia Water Resource Assessment (NAWRA) - an initiative of the Australian Government’s White Paper on Developing Northern Australia and the Agricultural Competitiveness White Paper, the government’s plan for stronger farmers and a stronger economy. Aspects of the Assessment were undertaken in conjunction with the Northern Territory Government, the Western Australian Government, and the Queensland Government.

Creative Commons Attribution 4.0 International Licence

CSIRO (Australia)

Ticehurst, Catherine; Marvanek, Steve (2018): Persistent Waterhole 200m-Segment data for NAWRA. v1. CSIRO. Data Collection.

All Rights (including copyright) CSIRO 2018.

The metadata and files (if any) are available to the public.

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Location Details

12°1′12″ S

19°21′0″ S

145°33′0″ E

123°2′60″ E


About this Project

Northern Australian Basin Assessment:: Water Resource Assessments

This metadata record relates specifically to the stated body of work and was created for the Northern Australia Water Resource Assessment (NAWRA) project. The NAWRA project has undertaken a comprehensive and integrated evaluation of the feasibility, economic viability and sustainability of water resource development in three priority areas in north... more

Cuan Petheram

Catherine Ticehurst

Steve Marvanek

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