Author(s): Qinglan Li; Hongping Lan; Johnny C. L. Chan; Chunyan Cao; Cheng Li
Linked Author(s):
Keywords: Tropical cyclone; Rainfall forecast; Non-parametric method; Boxplot scheme
Abstract: Non-parametric methods are used in this study to analyze and predict short-term rainfall due to tropical cyclones (TCs) in a coastal meteorological station. All 427 TCs during 1953-2011which made landfall along the Southeast China coast with a distance less than 700 km to a certain meteorological station–Shenzhen are analyzed and grouped according to their landfalling direction, distance and intensity. The corresponding daily rainfall records at Shenzhen Meteorological Station (SMS) during TCs landfalling period (a couple of days before and after TC landfall) are collected. The maximum daily rainfall (R-24) and maximum three days accumulative rainfall (R-72) records at SMS for each TC category are analyzed by a nonparametric statistical method, percentile estimation. The results are plotted by statistical boxplot, expressing in probability of precipitation. The performance of the statistical boxplots was evaluated to forecast the short-term rainfall at SMS during the TC season in 2012 and2013. Results show that the boxplot scheme can be used as a valuable reference to predict the short-term rainfall at SMS due to TCs landfalling along the Southeast China coast.
Year: 2014