Abstract
In December 2021, the worst flood outbreak in Malaysia occurred in Selangor and Pahang States. Focused on the Klang district, the rainfall amount during the flooding month, which happened in December, has been analyzed. This study aims to examine the rainfall data in this area during the occurrence of the flood. Hourly rainfall data were obtained from four rainfall stations: JPS Pulau Lumut station, Kg. Sg. Kembong station, Pintu Kawalan P/S Telok Gong station, and Ladang Sg. Kapar station has been computed to daily rainfall data by using averaging formula and analyzed using Pearson’s correlation formula. The result shows that the highest amount of rainfall occurred on December 17, 2021, with 18.4 mm at JPS Pulau Lumut station. The correlation analysis values between each station show a good correlation since they exceed the value of 0.650. A strong correlation is indicated by JPS Pulau Lumut and Ladang Sg. Kapar with 0.893. Rainfall analysis and accurate rainfall measurement are important for a wide spectrum of assessments, such as flood forecasting, effective water resources management, and agriculture.
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