Abstract
![CDATA[Regional flood frequency analysis (RFFA) is widely applied in hydrology to estimate flood quantiles for ungauged catchments. Most of these RFFA techniques are developed using flood quantiles estimated by annual maximum (AM) model. Recently, a RFFA technique has been recommended in Australian Rainfall and Runoff (ARR) based on the AM model, which does not include very frequent floods. In this study, at-site flood quantile estimates from 67 gauged catchments in southeast Australia based on peaks-over-threshold (POT) model are used to develop a RFFA technique for ‘very frequent’ and ‘frequent’ flood ranges. Very frequent design rainfall and baseflow index data from ARR are used as independent variables in this new RFFA. Based on an independent validation, it is found that the new POT based RFFA models can provide quite accurate flood quantile estimates for ungauged catchments in the very frequent and frequent flood range. These frequent design flood estimates can be used in urban stormwater management, environmental and ecological studies in the study area.]]
Original language | English |
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Title of host publication | Proceedings of the World Environmental and Water Resources Congress 2022, Adaptive Planning and Design in an Age of Risk and Uncertainty, Selected Papers from the World Environmental and Water Resources Congress 2022, June 5-8, 2022, Atlanta, Georgia |
Publisher | American Society of Civil Engineers |
Pages | 422-429 |
Number of pages | 8 |
ISBN (Print) | 9780784484258 |
DOIs | |
Publication status | Published - 2022 |
Event | World Environmental and Water Resources Congress - Duration: 5 Jun 2022 → … |
Conference
Conference | World Environmental and Water Resources Congress |
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Period | 5/06/22 → … |