Rainfall-induced landslides in Cameron Highland area, Malaysia
Cameron Highland is classified as one of the landslide-prone areas in Malaysia due to its hilly landform. It has been discovered that the landslides in Cameron Highland were mainly triggered by the intense rainfall since the area encountered high amount of rainfall throughout the year. This study...
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| Main Authors: | , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English English |
| Published: |
IOP Publishing
2020
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/87849/1/87849_Rainfall-Induced%20Landslides%20in%20Cameron%20Highland%20Area.pdf http://irep.iium.edu.my/87849/2/87849_Rainfall-Induced%20Landslides%20in%20Cameron%20Highland%20Area%20SCOPUS.pdf http://irep.iium.edu.my/87849/ https://iopscience.iop.org/article/10.1088/1757-899X/917/1/012019/pdf |
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| Institution: | Universiti Islam Antarabangsa Malaysia |
| Language: | English English |
| Summary: | Cameron Highland is classified as one of the landslide-prone areas in Malaysia due
to its hilly landform. It has been discovered that the landslides in Cameron Highland were
mainly triggered by the intense rainfall since the area encountered high amount of rainfall
throughout the year. This study is carried out to evaluate the correlation between the rainfall
intensity- duration (I-D) and the landslide occurrences in the Cameron Highland area. Twelve
cases of landslides in the study area had been selected for conducting the analysis of rainfall
intensity- duration (I-D) that triggers the landslides. The important variables from the analysis
such as the maximum rainfall intensity (I) and the duration of rainfall series (D) have been
applied to establish the empirical rainfall intensity-duration (I-D) threshold for Cameron
Highland landslide areas. Based on the study, by utilising the logarithmic scale graph and
applying a power-law model from the general equation of I= αD-β
, the empirical I-D threshold
for Cameron Highland landslide was determined as I = 29.088D-0.075 (I = rainfall intensity in
mm/hr and D = duration in hour). The empirical (I-D) threshold can be a functional
mechanism for the Early Warning System (EWS) once it is further developed, that enable the
relevant authority to prepare mitigation measures such as evacuation, spreading information to
the civilian in order to prevent major losses and casualties due to the landslide events |
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