LOW FLOW FREQUENCY ANALYSIS FOR BUKIT KENAU STREAMFLOW STATION IN KUANTAN RIVER BASIN

Low flow during dry season could lead to some negative impacts on the river ecosystem. Most of the river low flow data applications have been used in designing public water supply, irrigation schemes and energy production. Therefore, this study was conducted to determine the low flow frequency analysis for Kuantan River at Bukit Kenau streamflow station using Weibull and Gringorten formulas. Frequency analysis is carried out using the frequency factor method to determine the annual minimum flow. The average recurrence interval (ARI) of 2, 5, 10, 25, 50 and 100-year were determined based on the 22 years of historical streamflow data. This study illustrates the annual of 1-, 4-, 7- and 30-day of duration used in the analysis of low flow characteristics. Therefore, the outcome from this study could be used in the future for any project related to the low flow information in Kuantan River Basin.