IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 1: Extremes and Variability : Joint probability of sea levels and rainfall at tauranga harbour
Joint probability of sea levels and rainfall at tauranga harbour
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In flood management investigations, the combined effects of sea level and high rainfall are important in determining the probability of flooding in catchment areas. An understanding of the relevant variables provides a more accurate estimate of their combined probability of occurrence, and therefore permits a more efficient design of defences. Joint-probability analysis was employed to estimate tailwater levels at locations within the Tauranga Harbour, which are influenced by sea levels. The tailwater levels would then be used as design criteria for stormwater modelling of inner harbour catchments under the current climate storm conditions and future climate change scenarios. The study involved the determination of dependency relationships between storm surge and rainfall. This was done by examining long term records of sea level and rainfall, computation of extreme events and the estimation of tailwater levels from the joint probability of sea level exceedances and extreme rainfall events for various return interval periods.
File Size : 696,188 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 1: Extremes and Variability
Date Published : 08/08/2012
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