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一、台风概况广东省位于祖国南部,面临南海,海岸线长,常受台风影响.据统计,登陆我省的台风约占登陆我国台风的61%.从1949年至1981年,影响我省的台风(包括热带低压)共402个,平均每年有12.6个.其中在我省登陆的有202个,约占50%,平均每年6.3个.在我省登陆的台风中,从登陆地点来看,粤东30个,占14.85%;珠江口40个,占19.80%;粤西50个,占24.75%;海南岛82个,占40.59%.在台风活动过程中,总是伴随有狂风、暴雨、巨浪和台风暴潮.台风暴潮是由风应力和气压效应引起水位异常变化的自然现象.海面除了受月球、地球等天体的引潮力作用作周期性的运动外,还受天气变化的影响,每当受低气压影响或台风袭击时,水位异常升高,超出正常潮水位的数值,称台风
First, the typhoon situation Guangdong Province is located in the southern part of the motherland, facing the South China Sea, long coastline, often affected by typhoon.According to statistics, landing typhoon in our province accounts for about 61% of the typhoon landed in China from 1949 to 1981, affecting the typhoon province (Including tropical depression) a total of 402, an average of 12.6 per year of which 202 were in our province, accounting for about 50%, an average of 6.3 per year in the typhoon landing in our province, from the point of landing, Guangdong East 30, accounting for 14.85%; Pearl River estuary 40, accounting for 19.80%; 50 in western Guangdong, accounting for 24.75%; Hainan Island 82, accounting for 40.59% .In the typhoon activity process, always accompanied by the wind, rain, giant Waves and typhoon surges.Typhoon storm surge is a natural phenomenon caused by the abnormal changes of water level caused by wind stress and barometric pressure.In addition to the periodic movement of the tide force by celestial bodies such as the moon and earth, Whenever it is affected by depression or typhoon, the water level rises abnormally and exceeds the value of normal tide level, saying that the typhoon