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Mapping and Monitoring the Multi-Decadal Dynamics of Australia’s Open Waterbodies Using Landsat

Geoscience Australia, Canberra, ACT 2609, Australia
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Academic Editor: Yang Hong
Remote Sens. 2021, 13(8), 1437; https://doi.org/10.3390/rs13081437
Received: 22 February 2021 / Revised: 31 March 2021 / Accepted: 3 April 2021 / Published: 8 April 2021
Water detection algorithms are now being routinely applied to continental and global archives of satellite imagery. However, water resource management decisions typically take place at the waterbody rather than pixel scale. Here, we present a workflow for generating polygons of persistent waterbodies from Landsat observations, enabling improved monitoring and management of water assets across Australia. We use Digital Earth Australia’s (DEA) Water Observations from Space (WOfS) product, which provides a water classified output for every available Landsat scene, to determine the spatial locations and extents of waterbodies across Australia. We generated a polygon set of waterbodies that identified 295,906 waterbodies ranging in size from 3125 m2 to 4820 km2. Each polygon was used to generate a time series of WOfS, providing a history of the change in surface area of each waterbody every ~16 days since 1987. We demonstrate the applications of this new dataset, DEA Waterbodies, to understanding local through to national-scale surface water spatio-temporal dynamics. DEA Waterbodies provides new insights into Australia’s water availability and enables the monitoring of important landscape features such as lakes and dams, improving our ability to use earth observation data to make meaningful decisions. View Full-Text
Keywords: water; Landsat; WOfS; dams; waterbodies; data cube water; Landsat; WOfS; dams; waterbodies; data cube
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MDPI and ACS Style

Krause, C.E.; Newey, V.; Alger, M.J.; Lymburner, L. Mapping and Monitoring the Multi-Decadal Dynamics of Australia’s Open Waterbodies Using Landsat. Remote Sens. 2021, 13, 1437. https://doi.org/10.3390/rs13081437

AMA Style

Krause CE, Newey V, Alger MJ, Lymburner L. Mapping and Monitoring the Multi-Decadal Dynamics of Australia’s Open Waterbodies Using Landsat. Remote Sensing. 2021; 13(8):1437. https://doi.org/10.3390/rs13081437

Chicago/Turabian Style

Krause, Claire E., Vanessa Newey, Matthew J. Alger, and Leo Lymburner. 2021. "Mapping and Monitoring the Multi-Decadal Dynamics of Australia’s Open Waterbodies Using Landsat" Remote Sensing 13, no. 8: 1437. https://doi.org/10.3390/rs13081437

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