| 1223号台风“山神”转向成因分析 |
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| 引用本文： | 蒋静,黄滢,凌宗良,黄春华.1223号台风“山神”转向成因分析[J].广西气象,2013(4):9-13,30. |
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| 作者姓名： | 蒋静 黄滢 凌宗良 黄春华 |
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| 作者单位： | 防城港市气象局,广西防城港538001 |
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| 基金项目： | 中国气象局2013年预报员专项（CMAYBY2013-051）. |
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| 摘 要： | 利用micaps常规观测资料、ncep再分析资料,分析台风“山神”后期东北转向的原因,分析表明：500hPa副高东退南落是“山神”转向的关键;台风沿假相当位温高值轴线方向移动;环境风场的变化、200hPa高空辐散场中心偏离台风中心、卫星云图特征变化等都可能引起台风的转向;台风的内部特征（散度场、垂直速度场）的分布特点对台风移向有一定的关系.
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| 关 键 词： | 台风 转向 假相当位温 辐散场 卫星云图 内部特征 |
Analysis of 1223 Typhoon ＇Son-tinh＇ Turning |
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| Jiang Jing,Huang Ying,Ling Zong-liang,Huang Chun-hua.Analysis of 1223 Typhoon ＇Son-tinh＇ Turning[J].Journal of Guangxi Meteorology,2013(4):9-13,30. |
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| Authors: | Jiang Jing Huang Ying Ling Zong-liang Huang Chun-hua |
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| Institution: | (Fangchenggang Municipal Meteorologicai Service, Fangchenggang Guangxi, 538001) |
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| Abstract: | Based on Micaps routine data and Ncep reanalysis data, the causes of typhoon ＂Son-tinh＂ northeast turning were studied. The results showed that： 500hPa subtropical high weakened and east retreated were the critical reasons of turning. Typhoon ＂Son-tinh＂ moved along the high values axis of potential pseudo-equivalent temperature. The changes of wind fieht, 200hPa divergence center that deviating from typhoon center, changes of satellite image characteristics caused typhoon ＂Son-tinh＂ turning. The distributions of typhoon ＂Son-tinh＂ internal characteristics, such as, divergence and vertical velocity, related to typhoon ＂Son-tinh＂ turning. |
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| Keywords: | Typhoon turning pseudo-equivalent temperature divergence satellite images internal features |
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