摘要
利用广东自动气象站、深圳梯度塔、气象卫星等资料,对1822号超强台风“山竹”影响期间深圳的大风特征及其成因进行了初步分析,结果表明:“山竹”影响期间,深圳普遍出现了13级以上强风,沿海和高地12级及以上阵风持续长达13h,强度和影响时间均为历史罕见;大风自东向西影响深圳,起风阶段的风速增大速率大于减弱阶段的风速减小速率;大风除了和“山竹”强度、登陆点、移动速度有关外,中高纬度地区的冷高压也是造成该次深圳强风的原因之一。
Using the data from automatic weather stations, a gradient tower in Shenzhen and weather satellites , this work makes a preliminary analysis of the characteristics of strong winds during the visit by super typhoon Mangkhut (1822) in 2018.The result is shown as follows. During the visit by Mangkhut, strong winds of more Grade 13 were widespread in Shenzhen and gusts of Grade 12 and beyond lasted as long as 13 h over the coast and high lands. It is historically rare for such high intensity and long duration of a typhoon to occur in the city. The strong winds affected Shenzhen from the east to the west and wind speed was larger in the initial stage of the strong winds than in the decaying stage. Apart from the intensity , landfall location and moving speed of Mangkhut, the strong winds of Shenzhen were also contributed by a cold high pressure at the middle and high latitudes.
作者
刘佳
陈元昭
江崟
LIU Jia;CHEN Yimn-zhao;JIANG Yin(Meteorological Bureau of Shenzhen City,Shenzhen 518040)
出处
《广东气象》
2019年第5期11-14,共4页
Guangdong Meteorology
关键词
天气学
超强台风“山竹”
大风持续时间
深圳
synoptics
super severe typhoon Mangkhut
duration of strong winds
duration
Shenzhen
