Flood frequency analysis of Kadamaian and Wariu rivers in Kota Belud, Sabah, Malaysia

Kamilia Sharir and Saidin Ahmad and R. Roslee (2025) Flood frequency analysis of Kadamaian and Wariu rivers in Kota Belud, Sabah, Malaysia. Nature Environment and Pollution Technology, 24 (2). pp. 1-8. ISSN 0972 - 6268

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Abstract

Flood frequency analysis is crucial for understanding flood risks in specific regions. This study applied the Gumbel Distribution Method to analyze flood frequency using river discharge data from the Kadamaian and Wariu Rivers in Kota Belud, Sabah, Malaysia. The analysis involved data collection, parameter estimation, goodness-of-fit testing, and determination of annual recurrence intervals (ARIs). The study found that the ARIs for the Kadamaian and Wariu Rivers are 50 years and 30 years, respectively, highlighting the need for targeted flood mitigation strategies in these areas. These findings emphasize the higher flood risk in the Kadamaian River basin, necessitating more robust flood control measures compared to the Wariu River basin. The Gumbel distribution provided accurate flood frequency estimations validated by the Kolmogorov-Smirnov test and correlation coefficient (R2). The calculated ARIs offer valuable insights for flood hazard assessment and contingency planning. These findings underscore the importance of accurate flood frequency analysis in enhancing flood mitigation strategies and disaster preparedness. It is recommended that local authorities incorporate these results into flood management and urban planning initiatives.

Item Type:	Article
Keyword:	Annual recurrence interval, Flood hazards, Flood frequency analysis, Gumbel distribution, Probability distribution, Weibull plotting position
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography > GB3-5030 Physical geography > GB651-2998 Hydrology. Water > GB980-2998 Ground and surface waters > GB1201-1598 Rivers. Stream measurements P Language and Literature > PZ(1)-90 Fiction and juvenile belles lettres > PZ(1)-90 Fiction and juvenile belles lettres > PZ5-90 Juvenile belles lettres
Department:	FACULTY > Faculty of Science and Technology
Depositing User:	JUNAINE JASNI -
Date Deposited:	17 Oct 2025 11:19
Last Modified:	17 Oct 2025 11:19
URI:	https://eprints.ums.edu.my/id/eprint/45472

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