【摘要】 通过对1950-2012年影响广西沿海的热带气旋的统计分析发现,影响广西沿海的热带气旋数量年际变化明显,最多的年份达9个,最少的年份为0个;热带气旋季节分布具有明显规律性,每年的7、8、9三个月为影响高峰月,其次为6、10月;热带气旋从菲律宾以东洋面进入南海后穿过海南省和雷州半岛再次登陆广西沿海的次数最多,该类热带气旋引起的风暴增水平均值为111.2 cm,到达非登陆台风增水的2.6倍。风暴潮灾害的形成与强台风天气系统、全日大潮、河流下泄洪水直接有关。强台风产生巨浪及降雨,使入海河口水位上升,与风暴潮叠加后产生明显的增水,造成巨大的潮灾。更多还原

【Abstract】 By counting and analyzing the tropical cyclones affecting Guangxi coast from 1950 to 2012, we find that the annual number of tropical cyclones changes significantly, and the maximum value can be up to 9 and the minimum value is 0 in some year. The regularity of seasonal distribution of tropical cyclones is obvious, and the peak period is in July,August and September every year, followed by June and October. Most of tropical cyclones come from the sea area east to Philippines. After entering the South China Sea, passing through Hainan province and Leizhou Peninsula, they land on Guangxi coast. The mean value of peak surge caused by them is 111.2 cm, which is 2.6 times of the value of non-landing typhoon. The formation of storm surge disaster directly relates to the severe typhoon weather systems, diurnal spring tide and discharge of river flood. Huge waves and rainfall generated by severe typhoon cause water level rise of estuary, and it would produce significant increasing water, and create huge tidal disaster after being stacked up with the storm surge.更多还原