International Journal of Advanced Science and Technology Vol. 29, No. 4s, (2020), pp. 2759 - 2774 Evolution of River Characteristics Impact on Post-Flood and Normal Season in Pinang River Basin, Malaysia Muhammad Hafiz Md Saad1, Mohd Khairul Amri Kamarudin1,2*, Ahmad Shakir Mohd Saudi3, Firdaus Mohamad Hamzah4, Marlia Mohd Hanafiah5, Noorjima Abd Wahab1 and Siti Nur Aisyah Md Bati1 1East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, Gong Badak Campus, 21300 Kuala Nerus, Terengganu, Malaysia 2Faculty of Applied Social Sciences (FSSG), Universiti Sultan Zainal Abidin, Gong Badak Campus, 21300 Kuala Nerus, Terengganu, Malaysia 3Department of Environmental Health, Institute of Medical Science Technology, Universiti Kuala Lumpur, Kajang, Selangor, Malaysia 4Department of Engineering Education, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia 5Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia *
[email protected] Abstract Characterization of river outflow characteristics in the post-flood and normal seasons was carried out in the Pinang River Basin, Penang. Field sampling was performed twice in November 2017 (post-flood) and in March 2019 (normal season). Cross-sectional measurements involving the measurement of river width, river depth and velocity were performed at both sampling times. The objective of this study was to identify the pattern of river discharge in the Pinang River Basin and to assess the relationship between the occurrence of water discharge and other factors for both seasons. The results showed that the average discharge rate for each river after the rainy season was 0.85 m3/s for the Dondang River, 1.11 m3/s for the Ayer Itam River and 3.23 m3/s for the Sungai Pinang.