Michelle Ajoy Anak Samuel (2022) Application of the snake-line method as an early warning indicator for landslides in Sabah. Universiti Malaysia Sabah. (Unpublished)
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Abstract
A landslide is a highly catastrophic geological disaster that occurs on a frequent basis around the world, posing a significant risk to people's safety and property. In Sabah, Malaysia, landslides are one of the most common geohazards that happens during the rainy season. Therefore, a dependable and effective landslide early warning indicator is an essential part of disaster mitigation to minimise the risk of landslide. Hence, the objectives of this project are, firstly to study landslide cases and rainfall data in Sabah. Second objective is to analyse the working rainfall patterns associated with the landslide event. Third objective is to propose a critical line for the application of the Snake-Line Method in Sabah's landslide disaster mitigation. This research is conducted to study the application of the snake-line method as an early warning indicator for landslides in Sabah. The study area of this study will focus on the landslide cases in Ranau, Sandakan and Tambunan. The effect of rainfall to landslide events will be analyse based on working rainfall method. In this study, long working rainfall and short working rainfall are used to determine if a sequence of rainfalls is foreseeable to cause a landslide. A series of rainfall distributions will be observed by drawing a snake-line that represents the progression of a long and short working rainfall values. A critical line is derived from previous study dividing the occurring and non-occurring rainfall based on data from landslide cases. When the snake-line crosses or comes close to the critical line, an early warning can be sent out.
| Item Type: | Academic Exercise |
|---|---|
| Keyword: | Snake-line method , Landslides , Sabah , Geological disaster |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography > GB3-5030 Physical geography |
| Department: | FACULTY > Faculty of Engineering |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 09 Mar 2023 15:01 |
| Last Modified: | 09 Mar 2023 15:01 |
| URI: | https://eprints.ums.edu.my/id/eprint/35181 |
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