A hybrid model for statistical downscaling of daily rainfall
The robustness of random forest (RF) in classification and superiority of support vector machine (SVM) to fit highly non-linear data were used to develop a hybrid model for statistical downscaling of daily rainfall. The RF was used to predict whether rain will occur in a day or not and SVM was used...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
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Elsevier Ltd
2016
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| _version_ | 1796862108334292992 |
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| author | Pour, S. H. Shahid, S. Chung, E. S. |
| author_facet | Pour, S. H. Shahid, S. Chung, E. S. |
| author_sort | Pour, S. H. |
| collection | ePrints |
| description | The robustness of random forest (RF) in classification and superiority of support vector machine (SVM) to fit highly non-linear data were used to develop a hybrid model for statistical downscaling of daily rainfall. The RF was used to predict whether rain will occur in a day or not and SVM was used to predict amount of rainfall in rainfall occurring days. The capability of proposed hybrid model was verified by downscaling daily rainfall at three rain-gauge locations in the east cost of peninsular Malaysia. Obtained results reveal that the hybrid model can downscale rainfall with Nash-Sutcliff efficiency in the range of 0.90-0.93, which is much higher compared to RF and SVM downscaling models. The hybrid model was also found to replicate the variability, number of consecutive wet days, 95-percentile rainfall amount in each months as well as distribution of observed rainfall reliably. |
| first_indexed | 2024-03-05T20:06:34Z |
| format | Conference or Workshop Item |
| id | utm.eprints-73639 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:06:34Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-736392017-11-28T06:27:35Z http://eprints.utm.my/73639/ A hybrid model for statistical downscaling of daily rainfall Pour, S. H. Shahid, S. Chung, E. S. TA Engineering (General). Civil engineering (General) The robustness of random forest (RF) in classification and superiority of support vector machine (SVM) to fit highly non-linear data were used to develop a hybrid model for statistical downscaling of daily rainfall. The RF was used to predict whether rain will occur in a day or not and SVM was used to predict amount of rainfall in rainfall occurring days. The capability of proposed hybrid model was verified by downscaling daily rainfall at three rain-gauge locations in the east cost of peninsular Malaysia. Obtained results reveal that the hybrid model can downscale rainfall with Nash-Sutcliff efficiency in the range of 0.90-0.93, which is much higher compared to RF and SVM downscaling models. The hybrid model was also found to replicate the variability, number of consecutive wet days, 95-percentile rainfall amount in each months as well as distribution of observed rainfall reliably. Elsevier Ltd 2016 Conference or Workshop Item PeerReviewed Pour, S. H. and Shahid, S. and Chung, E. S. (2016) A hybrid model for statistical downscaling of daily rainfall. In: 12th International Conference on Hydroinformatics - Smart Water for the Future, HIC 2016, 21-26 Aug 2016, Songdo ConvensiaIncheon, South Korea. https://www.scopus.com/inward/record.uri?eid=2-s2.0-84997770183&doi=10.1016%2fj.proeng.2016.07.514&partnerID=40&md5=c6b9a0478471b6892679cb1ea6312149 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Pour, S. H. Shahid, S. Chung, E. S. A hybrid model for statistical downscaling of daily rainfall |
| title | A hybrid model for statistical downscaling of daily rainfall |
| title_full | A hybrid model for statistical downscaling of daily rainfall |
| title_fullStr | A hybrid model for statistical downscaling of daily rainfall |
| title_full_unstemmed | A hybrid model for statistical downscaling of daily rainfall |
| title_short | A hybrid model for statistical downscaling of daily rainfall |
| title_sort | hybrid model for statistical downscaling of daily rainfall |
| topic | TA Engineering (General). Civil engineering (General) |
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