title: The modelled raindrop size distribution of Skudai, Peninsular Malaysia, using exponential and lognormal distributions.
abstract: This paper presents the modelled raindrop size parameters in Skudai region of the Johor Bahru, western Malaysia. Presently, there is no model to forecast the characteristics of DSD in Malaysia, and this has an underpinning implication on wet weather pollution predictions. The climate of Skudai exhibits local variability in regional scale. This study established five different parametric expressions describing the rain rate of Skudai; these models are idiosyncratic to the climate of the region. Sophisticated equipment that converts sound to a relevant raindrop diameter is often too expensive and its cost sometimes overrides its attractiveness. In this study, a physical low-cost method was used to record the DSD of the study area. The Kaplan-Meier method was used to test the aptness of the data to exponential and lognormal distributions, which were subsequently used to formulate the parameterisation of the distributions. This research abrogates the concept of exclusive occurrence of convective storm in tropical regions and presented a new insight into their concurrence appearance.
authors.affiliation: Institute of Environmental and Water Resources Management, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia ; Department of Civil Engineering, Faculty of Engineering, Kano University of Science and Technology, 713101 Wudil, Kano, Nigeria.
authors.forename: Mahadi Lawan
authors.initials: ML
authors.lastname: Yakubu
authors.affiliation: Institute of Environmental and Water Resources Management, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
authors.forename: Zulkifli
authors.initials: Z
authors.lastname: Yusop
authors.affiliation: Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
authors.forename: Fadhilah
authors.initials: F
authors.lastname: Yusof
mesh_terms: D005618:Fresh Water / Q000737:chemistry*; D053208:Kaplan-Meier Estimate; D008296:Malaysia; D008956:Models, Chemical; D011891:Rain / Q000737:chemistry*; D014329:Tropical Climate