Redesigning rain gauges network in Johor using geostatistics and simulated annealing
Recently, many rainfall network design techniques have been developed, discussed and compared by many researchers. Present day hydrological studies require higher levels of accuracy from collected data. In numerous basins, the rain gauge stations are located without clear scientific understanding. I...
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| Format: | Conference or Workshop Item |
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2015
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| author | Mohd. Aziz, Mohd Khairul Bazli Yusof, Fadhilah Mohd. Daud, Zalina Yusop, Zulkifli Kasno, Mohammad Afif |
| author_facet | Mohd. Aziz, Mohd Khairul Bazli Yusof, Fadhilah Mohd. Daud, Zalina Yusop, Zulkifli Kasno, Mohammad Afif |
| author_sort | Mohd. Aziz, Mohd Khairul Bazli |
| collection | ePrints |
| description | Recently, many rainfall network design techniques have been developed, discussed and compared by many researchers. Present day hydrological studies require higher levels of accuracy from collected data. In numerous basins, the rain gauge stations are located without clear scientific understanding. In this study, an attempt is made to redesign rain gauge network for Johor, Malaysia in order to meet the required level of accuracy preset by rainfall data users. The existing network of 84 rain gauges in Johor is optimized and redesigned into a new locations by using rainfall, humidity, solar radiation, temperature and wind speed data collected during the monsoon season (November - February) of 1975 until 2008. This study used the combination of geostatistics method (variance-reduction method) and simulated annealing as the algorithm of optimization during the redesigned proses. The result shows that the new rain gauge location provides minimum value of estimated variance. This shows that the combination of geostatistics method (variance-reduction method) and simulated annealing is successful in the development of the new optimum rain gauge system. |
| first_indexed | 2024-03-05T19:45:24Z |
| format | Conference or Workshop Item |
| id | utm.eprints-59448 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:45:24Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | utm.eprints-594482021-10-11T02:05:02Z http://eprints.utm.my/59448/ Redesigning rain gauges network in Johor using geostatistics and simulated annealing Mohd. Aziz, Mohd Khairul Bazli Yusof, Fadhilah Mohd. Daud, Zalina Yusop, Zulkifli Kasno, Mohammad Afif QA Mathematics Recently, many rainfall network design techniques have been developed, discussed and compared by many researchers. Present day hydrological studies require higher levels of accuracy from collected data. In numerous basins, the rain gauge stations are located without clear scientific understanding. In this study, an attempt is made to redesign rain gauge network for Johor, Malaysia in order to meet the required level of accuracy preset by rainfall data users. The existing network of 84 rain gauges in Johor is optimized and redesigned into a new locations by using rainfall, humidity, solar radiation, temperature and wind speed data collected during the monsoon season (November - February) of 1975 until 2008. This study used the combination of geostatistics method (variance-reduction method) and simulated annealing as the algorithm of optimization during the redesigned proses. The result shows that the new rain gauge location provides minimum value of estimated variance. This shows that the combination of geostatistics method (variance-reduction method) and simulated annealing is successful in the development of the new optimum rain gauge system. 2015 Conference or Workshop Item PeerReviewed Mohd. Aziz, Mohd Khairul Bazli and Yusof, Fadhilah and Mohd. Daud, Zalina and Yusop, Zulkifli and Kasno, Mohammad Afif (2015) Redesigning rain gauges network in Johor using geostatistics and simulated annealing. In: 2nd ISM International Statistical Conference 2014: Empowering the Applications of Statistical and Mathematical Sciences, ISM 2014, 12-14 Aug 2014, Kuantan, Pahang. http://dx.doi.org/10.1063/1.4907455 |
| spellingShingle | QA Mathematics Mohd. Aziz, Mohd Khairul Bazli Yusof, Fadhilah Mohd. Daud, Zalina Yusop, Zulkifli Kasno, Mohammad Afif Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title | Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title_full | Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title_fullStr | Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title_full_unstemmed | Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title_short | Redesigning rain gauges network in Johor using geostatistics and simulated annealing |
| title_sort | redesigning rain gauges network in johor using geostatistics and simulated annealing |
| topic | QA Mathematics |
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