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| “珍珠”（0601）异常急翘路径和内核结构变化的诊断分析及数值研究 | |
| 引用本文： | 李勋,李泽椿,赵声蓉,曾智华,王勇. “珍珠”（0601）异常急翘路径和内核结构变化的诊断分析及数值研究[J]. 气象, 2010, 36(9): 1-8 |
| 作者姓名： | 李勋 李泽椿 赵声蓉 曾智华 王勇 |
| 作者单位： | 1. 南京信息工程大学,南京,210044;海南省气象台,海口,570203 2. 国家气象中心,北京,100081 3. 中国气象局上海台风研究所,中国气象局台风预报技术重点开放实验室,上海,200030 4. 南京信息工程大学,南京,210044 |
| 基金项目： | 国家自然科学基金面上项目（40875039）；国家自然科学基金重点项目（40730948）；中国气象局上海台风研究所台风研究基金项目（2006STB07）共同资助 |
| 摘 要： | 使用FY2卫星TBB资料、NCEP最终分析资料(1°×1°)和中尺度模式WRF,对0601号强台风"珍珠"的"急翘"异常转向路径和内核结构变化进行诊断分析和数值模拟。结果表明:"珍珠"移向变化与环境引导气流和位涡倾向1波分量正异常有关,"急翘"前12小时,环境引导气流向北偏转,位涡倾向1波分量正异常对应着"珍珠"移动方向变化;内核非对称结构发展与环境风垂直切变演变有关,垂直切变使得涡旋倾斜,涡旋倾斜方向出现较强的上升运动,导致"珍珠"内核偏南象限对流活动较强。 |
| 关 键 词： | 热带气旋 异常路径 位涡倾向 涡旋倾斜 |
| 收稿时间： | 2008-10-24 |
| 修稿时间： | 2010-04-07 |
A Diagnosis and Numerical Study of an Abrupt Recurved Typhoon Chanchu and Its Inner Core Structure Evolution |
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| LI Xun,LI Zechun,ZHAO Shengrong,ZENG Zhihua and WANG Yong. A Diagnosis and Numerical Study of an Abrupt Recurved Typhoon Chanchu and Its Inner Core Structure Evolution[J]. Meteorological Monthly, 2010, 36(9): 1-8 | |
| Authors: | LI Xun LI Zechun ZHAO Shengrong ZENG Zhihua WANG Yong |
| Affiliation: | LI Xun~(1,2) LI Zechun~3 ZHAO Shengrong~3 ZENG Zhihua~4 WANG Yong~1 1 Nanjing University of Information Science & Technology,Nanjing 210044 2 Hainan Meteorological Observatory,Haikou 570203 3 National Meteorological Center.Beijing 100081 4 Laboratory of Typhoon Forecast Technique/CMA,Shanghai Typhoon Institute,Shanghai 200030 |
| Abstract: | The abrupt recurved severe typhoon Chanchu and its inner core structure evolution are documented by using FY-2 TBB images,NCEP final analysis and the new generation mesoscale weather research and forecasting(WRF) model.Results show that the surrounding large-scale steering flow and potential vorticity tendency play important roles in Chanchu movement.The rightward deflection of Chanchu is indicated by the surrounding large-scale steering flow in advance.Chanchu is likely to move toward an area of maximum wa... |
| Keywords: | tropical cyclones abnormal track potential vorticity tendency vortex tilt |
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