南京大学学报:自然科学版2012,Vol.48Issue(6):701-708,8.
台风强度及演变的卫星反演试验研究
Retrieval research of typhoon intensity and evolution by using satellite imagery
摘要
Abstract
With the observation data of geostationary satellite MTSAT of Japan and the report on typhoons released by Fujian Meteorology Bureau of China, this paper studies three typhoons in 2008: Fung Wong (0808), Sinlaku (0813), Hagupit(0814). The area index, center brightness temperature index, minimum brightness temperature index are defined to study the relationship with typhoon intensity. The data of MTSAT infrared channel(10.8μm, IR1 )and the water vapor channel(6.7μm, WV)adopted in the research was got by human-computer interaction. It is shown that the area index of the IR1 brightness temperature is closely related to the intensity evolution when the typhoon is intensifying. The change of IR1 center brightness temperature has the same trend with the change of intensity for intense typhoon. The IR1 minimum brightness temperature index decreases rapidly when typhoon weakens. The area index of IR1 and WV difference(IRWV)has the same trend with the IR1 center brightness temperature index,but the amplitude of IRWV area index is larger when typhoon weakens. By the research of this paper,some quantitative analysis data can be provided for the study on the evolution of typhoon intensity. In the actual meteorological operations,it, so these indices would be helpful in the estimation of typhoon intensity and its e volution.关键词
台风强度/卫星观测/MTSAT卫星/红外通道Key words
typhoon intensity/satellite observation/satellite MTSAT/infrared channel分类
天文与地球科学引用本文复制引用
张兴海,郁凡..台风强度及演变的卫星反演试验研究[J].南京大学学报:自然科学版,2012,48(6):701-708,8.基金项目
基金项目:国家自然科学基金(41275030,40875012),公益性行业(气象)科研专项(GYHY201006007),国家“973”项目 ()