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| 台风“凤凰”和“诺瑞丝”路径与降水分布对比分析 | |
| 引用本文： | 余贞寿,闵锦忠,楼丽银,冀春晓,陈宣淼.台风“凤凰”和“诺瑞丝”路径与降水分布对比分析[J].气象科技,2010,38(1):32-36. |
| 作者姓名： | 余贞寿 闵锦忠 楼丽银 冀春晓 陈宣淼 |
| 作者单位： | 1. 温州市气象局,温州,325027 2. 南京信息工程大学,气象灾害省部共建教育部重点实验室,南京,210044 3. 浙江省气象科学研究所,杭州,310017 |
| 基金项目： | 国家自然科学基金项目，教育部科技创新工程重大项目培育资金项目，温州市科技计划项目，浙江省气象科技开放研究专项 |
| 摘 要： | 台风"凤凰"(0808)和"诺瑞丝"(8012)路径相似,但降水分布不同,"凤凰"暴雨分布在路径左右两侧,而"诺瑞丝"暴雨分布在路径左侧。文章从湿位涡和垂直风切变角度对这两个路径相似台风暴雨进行了诊断分析。结果表明:无论是"凤凰",还是"诺瑞丝"台风暴雨与湿位涡和垂直风切变都有较一致对应关系,强降水位于垂直风切变矢量左侧,垂直风切变矢量与移动路径呈不同夹角时,强降水分布在移动路径不同方位。湿位涡正压项(MPV1)负值区和斜压项(MPV2)正值区相叠加对应强降水落区,而且叠加区内MPV2越大,降水强度也越强。因此,在实际台风预报中,可以结合湿位涡和垂直风切变综合分析来提高预测强降水落区准确性。 |
| 关 键 词： | 移动路径 台风暴雨 湿位涡 垂直风切变 |
| 收稿时间： | 2008/2/15 0:00:00 |
| 修稿时间： | 2009/7/10 0:00:00 |
Analysis of Typhoons Fung-Wong and Norris with Similar Tracks and Different Rainfall Patterns |
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| Yu Zhenshou,Min Jinzhong,Lou Liyin,Ji Chunxiao and Chen Xuanmiao.Analysis of Typhoons Fung-Wong and Norris with Similar Tracks and Different Rainfall Patterns[J].Meteorological Science and Technology,2010,38(1):32-36. | |
| Authors: | Yu Zhenshou Min Jinzhong Lou Liyin Ji Chunxiao and Chen Xuanmiao |
| Affiliation: | Yu Zhenshou1 Min Jinzhong2 Lou Liyin1 Ji Chunxiao3 Chen Xuanmiao1(1 Wenzhou Meteorological Bureau,Zhejiang Province,Wenzhou 325027,2 Key Laboratory of Meteorological Disaster of Ministry of Education,NUIST,Nanjing 210044,3 Zhejiang Institute of Meteorological Sciences,Hangzhou 310017) |
| Abstract: | The Tropical Cyclones (TC)with similar tracks generally have similar rainstorm patterns,but Typhoons Fung-Wong (0808) and Norris (8012) are exceptions,which have similar tracks but different precipitation distribution. The rainstorms of Fung-Wong distributed in two sides of the track,but those of Norris distributed in the left side of its track. The typhoon rainstorms are diagnosed and analyzed by means of moist potential vorticity (MPV) and vertical wind shear analysis. It is found that,regardless of Fung-... |
| Keywords: | moving track typhoon rainstorm moist potential vorticity vertical wind shear |
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