TY - JOUR T1 - Statistical Analysis of 30 Year Rainfall Data: A Case Study for Langat River Basin AU - Abd Rahman, River Basin Nor Faiza AU - Hısham, Noramira AU - Mohammad, Munira AU - Taı, Vin Cent AU - Khalıdx, Khairi AU - Mohmad Sharıf, Mohamad Shakri PY - 2022 DA - December DO - 10.55549/epstem.1226646 JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 321 EP - 327 VL - 21 LA - en AB - Rainfall is an important factor in civil engineering as it affects the design of hydraulic structures,bridges and culverts, canals, storm water sewers, road drainage systems, etc. This paper presents the statisticalanalysis of 30-year rainfall data collected at eight rainfall stations within the Langat River Basin. Ten plottingposition methods were utilised to evaluate the return period of annual rainfall. The yearly rainfall was computedto assess the variability of rainfall based on the determined results; the pattern of rainfall is irregular. WeibullDistribution from Plotting Position methods is found to best fit the annual rainfall data. The findings provide theinsights for determining the correct commencement and cessation of monsoon results, which have the effect onland utilisation, flood forecasting and emergency planning. This analysis contributes to water management,water resource planners, farmers, and urban engineers to evaluate the availability of water and develop thestorage accordingly. KW - Weibull distribution KW - Rainfall KW - Precipitation KW - Langat river basin KW - Plotting position. UR - https://doi.org/10.55549/epstem.1226646 L1 - https://dergipark.org.tr/en/download/article-file/2862312 ER -