The Most Likely Flooded Soil in Terengganu State During Historically Greatest Rainfall Intensity

Goh, Sunny Eng Giap and Zakaria, Amirul Asyraf and Ahmad, Mohammad Fadhli and Abdul Rasid, Muhammad Zamir and Chan, Chee-Ming and Sulaiman, Mohd Sofiyan and Rudiyanto, Rudiyanto and Muhamad, Khasifah and Ling, Ting Chee and Maulana, Hanhan (2024) The Most Likely Flooded Soil in Terengganu State During Historically Greatest Rainfall Intensity. Journal of Advanced Research in Applied Sciences and Engineering Technology, 41 (2). pp. 152-163. ISSN 2462-1943

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Abstract

Water infiltration in the soil is an essential topic for investigation because soil fully saturated with water forms standing water that leads to flooding on top of the soil. Soil investigation is vital for agricultural study due to the necessity to know soil carrying capacity in holding water, field capacity, and also the soil temperature for biological activities and chemical reactions. However, human urbanization and expansion into previously unexplored soil areas could lead to unnecessary environmental stress, such as floods. Floodwater forms when the rainfall intensity exceeds soil water infiltration. The flood event is crucial since it affects the human livelihood and facility damages. Therefore, a good understanding of soil hydraulic water infiltration helps better understanding the cause of flood occurrence. The current study examines the soil series in Terengganu state with its soil properties concerning the soil water characteristics curve, which indicates the soil's ability to absorb and allow water movement in the ground. The equation used was the improved Richards’ equation that can be applied to examine the standing water or floodwater impacts on water infiltration. Also, the unsaturated soil moisture movement conditions can be investigated. The simulation equation verifies with benchmark datasets that was solved on Richards’ equation using a different numerical method. The twelve-soil series of Terengganu state subjected to water infiltration study subjected to flooded conditions, by exposing the soil to the highest rainfall identified in the history of Kuala Terengganu from 1985 to early 2023. The results reveal Jambu, Rhu Tapai and Rudua soil series'

Item Type:	Article
Uncontrolled Keywords:	Water flux in soil; Rainfall intensity on soil; Terengganu flood management; Saturated soil
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Civil Engineering and Built Environment > FKAAB
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	13 Mar 2025 23:58
Last Modified:	13 Mar 2025 23:58
URI:	http://eprints.uthm.edu.my/id/eprint/12544

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