Analysis of rainfall distribution in Kelantan river basin, Malaysia
Using rainfall gauge on its own as input carries great uncertainties regarding runoff estimation, especially when the area is large and the rainfall is measured and recorded at irregular spaced gauging stations. Hence spatial interpolation is the key to obtain continuous and orderly rainfall distrib...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://doi.org/10.1051/e3sconf/20183402020 |
| _version_ | 1818853044322828288 |
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| author | Che Ros Faizah Tosaka Hiroyuki |
| author_facet | Che Ros Faizah Tosaka Hiroyuki |
| author_sort | Che Ros Faizah |
| collection | DOAJ |
| description | Using rainfall gauge on its own as input carries great uncertainties regarding runoff estimation, especially when the area is large and the rainfall is measured and recorded at irregular spaced gauging stations. Hence spatial interpolation is the key to obtain continuous and orderly rainfall distribution at unknown points to be the input to the rainfall runoff processes for distributed and semi-distributed numerical modelling. It is crucial to study and predict the behaviour of rainfall and river runoff to reduce flood damages of the affected area along the Kelantan river. Thus, a good knowledge on rainfall distribution is essential in early flood prediction studies. Forty six rainfall stations and their daily time-series were used to interpolate gridded rainfall surfaces using inverse-distance weighting (IDW), inverse-distance and elevation weighting (IDEW) methods and average rainfall distribution. Sensitivity analysis for distance and elevation parameters were conducted to see the variation produced. The accuracy of these interpolated datasets was examined using cross-validation assessment. |
| first_indexed | 2024-12-19T07:30:33Z |
| format | Article |
| id | doaj.art-fa12f092780743a1bb34ec5e11d256d9 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-19T07:30:33Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-fa12f092780743a1bb34ec5e11d256d92022-12-21T20:30:44ZengEDP SciencesE3S Web of Conferences2267-12422018-01-01340202010.1051/e3sconf/20183402020e3sconf_cenviron2018_02020Analysis of rainfall distribution in Kelantan river basin, MalaysiaChe Ros FaizahTosaka HiroyukiUsing rainfall gauge on its own as input carries great uncertainties regarding runoff estimation, especially when the area is large and the rainfall is measured and recorded at irregular spaced gauging stations. Hence spatial interpolation is the key to obtain continuous and orderly rainfall distribution at unknown points to be the input to the rainfall runoff processes for distributed and semi-distributed numerical modelling. It is crucial to study and predict the behaviour of rainfall and river runoff to reduce flood damages of the affected area along the Kelantan river. Thus, a good knowledge on rainfall distribution is essential in early flood prediction studies. Forty six rainfall stations and their daily time-series were used to interpolate gridded rainfall surfaces using inverse-distance weighting (IDW), inverse-distance and elevation weighting (IDEW) methods and average rainfall distribution. Sensitivity analysis for distance and elevation parameters were conducted to see the variation produced. The accuracy of these interpolated datasets was examined using cross-validation assessment.https://doi.org/10.1051/e3sconf/20183402020 |
| spellingShingle | Che Ros Faizah Tosaka Hiroyuki Analysis of rainfall distribution in Kelantan river basin, Malaysia E3S Web of Conferences |
| title | Analysis of rainfall distribution in Kelantan river basin, Malaysia |
| title_full | Analysis of rainfall distribution in Kelantan river basin, Malaysia |
| title_fullStr | Analysis of rainfall distribution in Kelantan river basin, Malaysia |
| title_full_unstemmed | Analysis of rainfall distribution in Kelantan river basin, Malaysia |
| title_short | Analysis of rainfall distribution in Kelantan river basin, Malaysia |
| title_sort | analysis of rainfall distribution in kelantan river basin malaysia |
| url | https://doi.org/10.1051/e3sconf/20183402020 |
| work_keys_str_mv | AT cherosfaizah analysisofrainfalldistributioninkelantanriverbasinmalaysia AT tosakahiroyuki analysisofrainfalldistributioninkelantanriverbasinmalaysia |