东海转向型台风潮及预报方法

转向型台风多产生在7,8,9三个月,台风大多在西北太平洋生成,以一定速度向西偏北方向移动;在移动过程中,台风强度在不断变化。近海转向型台风在我国东南沿海强度加强或强度不减,而登陆转向型台风登陆后受地形影响强度减弱。 本文就近年来东海转向型台风引起的台风增水,对青岛、吴淞两站进行了分析和预报。

THE CHANGING DIRECTION TYPE TYPHOON IN THE EAST CHINA SEA AND THE METHOD OF FORECAST

Based on the data of meteorology and 18 observation data on water level at the presence of typhoon during the years of 1956-1981 in Qingdao and Wusong stations, this paper deals with the properties of the typhoon surges as well as the forecast method. It is evident that wind usually plays a very important part in storm surges. The wind near the shore has a direct bearing on the rising of water, and in general, there is a linear relationship between them. The peak surge in Wusong was found usually about 2-6 hours later than the wind. There were unlinear effects in addition to the inaccuracy of the forecast of astronomical tides.