Journal article

Hydromorphological attributes for all Australian river reaches derived from Landsat dynamic inundation remote sensing

Jiawei Hou, Albert IJM van Dijk, Luigi J Renzullo, Robert A Vertessy, Norman Mueller

Earth System Science Data | Copernicus Publications | Published : 2019

Abstract

Hydromorphological attributes such as flow width, water extent, and gradient play an important role in river hydrological, biogeochemical, and ecological processes and can help to predict river conveyance capacity, discharge, and flow routing. While there are some river width datasets at global or regional scales, they do not consider temporal variation in river width and do not cover all Australian rivers. We combined detailed mapping of 1.4 million river reaches across the Australian continent with inundation frequency mapping from 27 years of Landsat observations. From these, the average flow width at different recurrence frequencies was calculated for all reaches, having a combined lengt..

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University of Melbourne Researchers

Grants

Funding Acknowledgements

The authors acknowledge the Australian Bureau of Meteorology and Geoscience Australia for developing the Australian Hydrological Geospatial Fabric (Geofabric) and Water Observations from Space (WOfS). We are grateful to Adam Lewis for his assistance in reviewing this paper. The first author thanks the ANU-CSC (the Australian National University and the China Scholarship Council) Scholarship for supporting his PhD study at the Australian National University. Calculations were performed on the high-performance computing system, Raijin, from the National Computational Infrastructure (NCI), which is supported by the Australian Government. This paper is published with the permission of the CEO, Geoscience Australia. We also thank Loes van Schaik, George Allen, and the anonymous reviewer for their helpful suggestions that improved the manuscript.