Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 19, issue 12
Articles | Volume 19, issue 12
https://doi.org/10.5194/hess-19-4735-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/hess-19-4735-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 19, issue 12
Research article
 | 
03 Dec 2015
Research article |  | 03 Dec 2015

Regime shifts in annual maximum rainfall across Australia – implications for intensity–frequency–duration (IFD) relationships

D. C. Verdon-Kidd and A. S. Kiem

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Short summary
Rainfall intensity-frequency-duration (IFD) relationships are required for the design and planning of water supply and management systems around the world. Currently IFD information is based on the "stationary climate assumption". However, this paper provides evidence of regime shifts in annual maxima rainfall time series using 96 daily rainfall stations and 66 sub-daily rainfall stations across Australia. Importantly, current IFD relationships may under- or overestimate the design rainfall.
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