Articles | Volume 27, issue 1
https://doi.org/10.5194/hess-27-229-2023
https://doi.org/10.5194/hess-27-229-2023
Research article
 | 
11 Jan 2023
Research article |  | 11 Jan 2023

Regional significance of historical trends and step changes in Australian streamflow

Gnanathikkam Emmanuel Amirthanathan, Mohammed Abdul Bari, Fitsum Markos Woldemeskel, Narendra Kumar Tuteja, and Paul Martinus Feikema

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Cited articles

Abdul Aziz, O. I. and Burn, D. H.: Trends and variability in the hydrological regime of the Mackenzie River Basin, J. Hydrol., 319, 282–294, https://doi.org/10.1016/j.jhydrol.2005.06.039, 2006. 
Akpoti, K., Antwi, E. O., and Kabo-bah, A. T.: Impacts of rainfall variability, land use and land cover change on stream flow of the Black Volta basin, West Africa, Hydrology, 3, 26, https://doi.org/10.3390/hydrology3030026, 2016. 
Alfieri, L., Lorini, V., Hirpa, F. A., Harrigan, S., Zsoter, E., Prudhomme, C., and Salamon, P.: A global streamflow reanalysis for 1980–2018, J. Hydrol. X, 6, 100049, https://doi.org/10.1016/j.hydroa.2019.100049, 2020. 
Asadieh, B., Krakauer, N. Y., and Fekete, B. M.: Historical trends in mean and extreme runoff and streamflow based on observations and climate models, Water, 8, 189, https://doi.org/10.3390/w8050189, 2016. 
Atkinson, R., Power, R., Lemon, D., O'Hagan, R., Dovey, D., and Kinny, D.: The Australian Hydrological Geospatial Fabric – Development Methodology and Conceptual Architecture, CSIRO: Water for a Healthy Country National Research Flagship, Canberra, Australia, 57 pp., https://publications.csiro.au/rpr/download?pid=procite:5126351f-b297-409b-b472-654d3534e3ae&dsid=DS1 (last access: 10 January 2023), 2008. 
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Short summary
We used statistical tests to detect annual and seasonal streamflow trends and step changes across Australia. The Murray–Darling Basin and other rivers in the southern and north-eastern areas showed decreasing trends. Only rivers in the Timor Sea region in northern Australia showed significant increasing trends. Our results assist with infrastructure planning and management of water resources. This study was undertaken by the Bureau of Meteorology with its responsibility under the Water Act 2007.