- Title
- Impacts of long-term climate variability and climate change on flood frequency: Susannah Brook, Western Australia
- Creator
- Samuel, J.; Sivapalan, M.; Franks, Stewart William
- Relation
- Regional Hydrological Impacts of Climatic Variability and Change: Impact Assessment and Decision Making: Proceedings of Symposium S6 Held During the Seventh IAHS Scientific Assembly at Foz do Iguaçu, Brazil, April 2005. (Foz de Iguaçu, Brazil April 3-9, 2005)
- Publisher
- IAHS Press
- Resource Type
- conference paper
- Date
- 2005
- Description
- In this paper we investigate the propagation of long-term climate variabilities and climate changes through a catchment system to the flood frequency curve, through the use of a rainfall-runoff model that captures rainfall and water balance variability at a multiplicity of time scales, ranging from event to seasonal, inter-annual and inter-decadal time scales. This modelling investigation is carried out in the Susannah Brook catchment, Western Australia. Analysis of the results shows that, for example, a 10-year flood may change over to a 15-year flood over the next 50 years, due to a possible declining rainfall trend. Similarly, the 25-year flood may become a 40-year flood over the same period. These results suggest that engineers will need to come up with creative changes to traditional flood frequency estimation procedures to deal with long-term climate variability and changes.
- Subject
- climate change; climate variability; flood frequency; inter-annual; inter-decadal
- Identifier
- uon:565
- Identifier
- http://hdl.handle.net/1959.13/24597
- Identifier
- ISBN:1-901502-08-2
- Language
- eng
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