Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia
The main focus of this study is to find a better approach for the improvement of rainfall intensity–duration–frequency (IDF) for Peninsular Malaysia by fitting the best statistical model to each data series. This is because IDF curve is generally used to determine the design rainfall in designing wa...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Published: |
Springer Verlag
2018
|
| Subjects: |
| _version_ | 1825721829067587584 |
|---|---|
| author | Chin, Ren Jie Lai, Sai Hin Chang, Kian Boon Jaafar, Wan Zurina Wan Othman, Faridah |
| author_facet | Chin, Ren Jie Lai, Sai Hin Chang, Kian Boon Jaafar, Wan Zurina Wan Othman, Faridah |
| author_sort | Chin, Ren Jie |
| collection | UM |
| description | The main focus of this study is to find a better approach for the improvement of rainfall intensity–duration–frequency (IDF) for Peninsular Malaysia by fitting the best statistical model to each data series. This is because IDF curve is generally used to determine the design rainfall in designing water resource structures. Data are collected from 60 selected rainfall stations in Peninsular Malaysia based on their completeness of data and coverage area. Two models are chosen and compared to derive the IDF relationship, which are fitting PDS to generalized Pareto (GPA) distribution (GPA/PDS) and fitting AMS to generalized extreme value (GEV) distribution (GEV/AMS). Based on the L-moment ratio diagram, it is found that the model based on fitting PDS to GPA distribution is more suitable in derivation of rainfall IDF relationship in Peninsular Malaysia. A software package containing Rain Event Mining Tool (RainEMT), Rain IDF and RainMap is developed to aid the study. |
| first_indexed | 2024-03-06T05:56:18Z |
| format | Article |
| id | um.eprints-22217 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:56:18Z |
| publishDate | 2018 |
| publisher | Springer Verlag |
| record_format | dspace |
| spelling | um.eprints-222172019-09-04T06:09:29Z http://eprints.um.edu.my/22217/ Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia Chin, Ren Jie Lai, Sai Hin Chang, Kian Boon Jaafar, Wan Zurina Wan Othman, Faridah TA Engineering (General). Civil engineering (General) The main focus of this study is to find a better approach for the improvement of rainfall intensity–duration–frequency (IDF) for Peninsular Malaysia by fitting the best statistical model to each data series. This is because IDF curve is generally used to determine the design rainfall in designing water resource structures. Data are collected from 60 selected rainfall stations in Peninsular Malaysia based on their completeness of data and coverage area. Two models are chosen and compared to derive the IDF relationship, which are fitting PDS to generalized Pareto (GPA) distribution (GPA/PDS) and fitting AMS to generalized extreme value (GEV) distribution (GEV/AMS). Based on the L-moment ratio diagram, it is found that the model based on fitting PDS to GPA distribution is more suitable in derivation of rainfall IDF relationship in Peninsular Malaysia. A software package containing Rain Event Mining Tool (RainEMT), Rain IDF and RainMap is developed to aid the study. Springer Verlag 2018 Article PeerReviewed Chin, Ren Jie and Lai, Sai Hin and Chang, Kian Boon and Jaafar, Wan Zurina Wan and Othman, Faridah (2018) Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia. Iranian Journal of Science and Technology, Transactions of Civil Engineering, 42 (2). pp. 121-131. ISSN 2228-6160, DOI https://doi.org/10.1007/s40996-017-0087-7 <https://doi.org/10.1007/s40996-017-0087-7>. https://doi.org/10.1007/s40996-017-0087-7 doi:10.1007/s40996-017-0087-7 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Chin, Ren Jie Lai, Sai Hin Chang, Kian Boon Jaafar, Wan Zurina Wan Othman, Faridah Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title | Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title_full | Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title_fullStr | Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title_full_unstemmed | Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title_short | Statistical Analysis Towards Improvement of Design Rainfall: Case Study of Peninsular Malaysia |
| title_sort | statistical analysis towards improvement of design rainfall case study of peninsular malaysia |
| topic | TA Engineering (General). Civil engineering (General) |
| work_keys_str_mv | AT chinrenjie statisticalanalysistowardsimprovementofdesignrainfallcasestudyofpeninsularmalaysia AT laisaihin statisticalanalysistowardsimprovementofdesignrainfallcasestudyofpeninsularmalaysia AT changkianboon statisticalanalysistowardsimprovementofdesignrainfallcasestudyofpeninsularmalaysia AT jaafarwanzurinawan statisticalanalysistowardsimprovementofdesignrainfallcasestudyofpeninsularmalaysia AT othmanfaridah statisticalanalysistowardsimprovementofdesignrainfallcasestudyofpeninsularmalaysia |