1. Envelope curves for the specific discharge of extreme floods in Malaysia.
- Author
-
Abdullah, Jazuri, Muhammad, Nur Shazwani, Muhammad, Siti Asiah, and Julien, Pierre Y.
- Subjects
RAINFALL intensity duration frequencies ,FLOODS ,CURVES ,WATERSHEDS ,RAINFALL ,MOUNTAIN watersheds ,EXTREME value theory - Abstract
The relationship between peak specific discharge and watershed area is examined for large, rare and extreme floods in Malaysia using a distributed hydrological model. Envelope curves for specific discharge for these events and the uncertainty is quantified. The relationships between rainfall duration and intensity as a function of watershed size were also examined. As a result, three main regions were defined to estimate the peak discharge as a function of watershed size for large, extreme and rare floods. The average magnitudes for the PMP and the world's extreme rainfall events were 5 and 12 times larger than the 100-year event, respectively. The envelope curves may assist engineers and other interested parties to estimate the peak discharge for watershed up to 100,000 km
2 , especially for ungauged watersheds. [ABSTRACT FROM AUTHOR]- Published
- 2019
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