A best-fit probability distribution for the estimation of rainfall in northern regions of Pakistan

Open Life Sciences

Alazba A. A.¹  Rizwan M.²  Amin M. T.³ 

[1] Alamoudi Water Research Chair, King Saud University, P.O. Box 2460, Riyadh 11451, Kingdom of Saudi Arabia;Department of Civil and Environmental Engineering, Hanyang University, Seoul, South Korea;Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakista;

关键词: rainfall;    probability distributions;    goodness of fit tests;    rainfall estimates;   

DOI  :  10.1515/biol-2016-0057

来源: DOAJ

【 摘 要 】

This study was designed to find the best-fit probability distribution of annual maximum rainfall based on a twenty-four-hour sample in the northern regions of Pakistan using four probability distributions: normal, log-normal, log-Pearson type-III and Gumbel max. Based on the scores of goodness of fit tests, the normal distribution was found to be the best-fit probability distribution at the Mardan rainfall gauging station. The log-Pearson type-III distribution was found to be the best-fit probability distribution at the rest of the rainfall gauging stations. The maximum values of expected rainfall were calculated using the best-fit probability distributions and can be used by design engineers in future research.

【 授权许可】

Unknown