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投稿时间：2008-07-03 修订日期：2009-04-15
投稿时间：2008-07-03 修订日期：2009-04-15
中文摘要: 利用实况观测定位和强度资料、NCEP的1°×1°全球最终分析资料、NOAA周平均1°×1°
海温再分析资料和FY卫星水汽图像,分析台风浣熊（0801）的环境背景条件和内核结构
演变与强度变化的关系。结果表明：（1）环境风垂直切变增大至10m·s-1左右与南海
北部海表温度逐步减小导致最大可能强度不断降低是“浣熊”快速发展过程中断并减弱的重要外部条件
；（2）卫星水汽图像显示内核结构存在眼壁破裂和复原现象，该现象精确地反映其强度变
化。眼壁破裂（复原）过程导致“浣熊”减弱（增强）。
Abstract:The role played by environmental background and inner core in the changes
of intensity o
f Typhoon Neoguri is documented by using observed track data, NCEP Final Analysi
s, NOAA OI SST weekly means and FY satellite water vapor images. The results sho
w that (1) the storm weakening is closely related to the vertical wind shears a
nd sea surface temperature. The vertical wind shears increase in magnitude to about 10m/s, and the Maximum Potential Intensity (MPI) decreases when the system moves over a cool tongue of water, the intensification comes to an end; (2) The breakdown and recovery of eyewall revealed by vapor images, are consistent with intensity changes. The breakdown (recovery) of eyewall leads to the storm weakening (deepening).
keywords: tropical cyclones intensity changes observational study satellite water vapor
images eyewall breakdown
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引用文本：
李勋,李泽椿,赵声蓉,王勇,赵大军,2009.“浣熊”强度变化的环境背景和卫星观测分析[J].气象,35(12):21-29.
Li Xun,Li Zechun,Zhao Shengrong,Wang Yong,Zhao Dajun,2009.Analysis of Environment Background and Satellite Observations About Intensity Changes of Typhoon Neoguri[J].Meteor Mon,35(12):21-29.
李勋,李泽椿,赵声蓉,王勇,赵大军,2009.“浣熊”强度变化的环境背景和卫星观测分析[J].气象,35(12):21-29.
Li Xun,Li Zechun,Zhao Shengrong,Wang Yong,Zhao Dajun,2009.Analysis of Environment Background and Satellite Observations About Intensity Changes of Typhoon Neoguri[J].Meteor Mon,35(12):21-29.