Universiti Teknologi Malaysia Institutional Repository

Statistical and physical descriptions of raindrop size distributions in equatorial Malaysia from disdrometer observations

Hong, Yin Lam and Din, Jafri and Siat, Ling Jong (2015) Statistical and physical descriptions of raindrop size distributions in equatorial Malaysia from disdrometer observations. Advances in Meteorology, 2015 . ISSN 1687-9309

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Official URL: http://dx.doi.org/10.1155/2015/253730

Abstract

This work investigates the physical characteristics of raindrop size distribution (DSD) in an equatorial heavy rain region based on three years of disdrometer observations carried out at Universiti Teknologi Malaysia's (UTM's) campus in Kuala Lumpur, Malaysia. The natural characteristics of DSD are deduced, and the statistical results are found to be in accordance with the findings obtained from others disdrometer measurements. Moreover, the parameters of the Gamma distribution and the normalized Gamma model are also derived by means of method of moment (MoM) and maximum likelihood estimation (MLE). Teir performances are subsequently validated using the rain rate estimation accuracy: the normalized Gamma model with the MLE-generated shape parameter µ was found to provide better accuracy in terms of long-term rainfall rate statistics, which reffects the peculiarities of the local climatology in this heavy rain region. Tese results not only ofer a better understanding of the microphysical nature of precipitation in this heavy rain region but also provide essential information that may be useful for the scientific community regarding remote sensing and radio propagation.

Item Type:Article
Uncontrolled Keywords:physical characteristics, raindrop size
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:56132
Deposited By: Muhamad Idham Sulong
Deposited On:15 Nov 2016 07:39
Last Modified:14 Sep 2017 06:31

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