Geosat卫星高度计可广泛应用于如锋面,海面风、浪和高度等多方面的研究,但利用高度计资料分析台风的海面风、浪断面结构,因受卫星轨道、台风路径和高度计风速算法等多方面的制约,过去一直研究较少。该文以Geosat高度计1987年8月11日一上升轨道的风、浪资料为基础,研究分析了8708号台风影响下的海面风速和海浪断面分布特征。结果显示,利用高度计可以获取常规方法难以获取的台风断面监测资料,充分利用这一信息源于台风的海面风、浪结构特征的研究有利于台风灾害的防御以及这一天气过程情况海气相互作用的研究。

Geosat satellite altimeter can be extensively used to study front, sea surface wind, wave and altitude etc., but it is difficult to use altimetric data to analyze the section structures of sea surface wind and wave in typhoon because of the limits of satellite orbit, typhoon track and wind speed algorithm of altimeter etc.. Based on Geosat altimetric data of wind speed and significant wave height in an ascending track on August 11, 1987, the sectional distribution characteristics of the wind and wave are analyzed under No. 8708 typhoon. The result shows that the section measuring data can be obtained by altimeters whereas it is difficult to be obtained by conventional methods. Making full use of this information on the characteristics study of sea surface wind and wave structure under typhoon will benifit the prevention of typhoon calamity and the study of air-sea interaction in the synoptic process.