| ENSO事件对冬季北半球太平洋风暴轴维持的影响 |
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| 引用本文： | 朱伟军,孙照渤.ENSO事件对冬季北半球太平洋风暴轴维持的影响[J].南京气象学院学报,1998,21(2):189-195. |
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| 作者姓名： | 朱伟军 孙照渤 |
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| 作者单位： | 南京气象学院气象学系 |
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| 摘 要： | 利用欧洲中期天气预报中心（ＥＣＭＷＦ）每日客观分析资料及美国大气研究中心（ＮＣＡＲ）再分析资料研究ＥＮＳＯ事件对简报北半球太平洋风暴轴维持的影响，结果表明，Ｅｌ、Ｎｉｎｏ（Ｌａ Ｎｉｎａ）年，风暴轴区域斜压性强（弱），风暴轴位置向东（西）扩展（收缩）且强度强（弱），与风暴轴发展有关的涡动热量通量和运量通量也同时增强（减弱），由此揭示出ＥＮＳＯ事件对太平洋风暴轴的维持和发展有重要影响．
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| 关 键 词： | ENSO 风暴轴 斜压性 太平洋 冬季 |
ENSO EFFECT ON THE MAINTENANCE OF WINTERTIME PACIFIC STORM TRACK |
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| Zhu,weijun,Sun,Zhaobo.ENSO EFFECT ON THE MAINTENANCE OF WINTERTIME PACIFIC STORM TRACK[J].Journal of Nanjing Institute of Meteorology,1998,21(2):189-195. |
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| Authors: | Zhu weijun Sun Zhaobo |
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| Abstract: | In the context of the ECMWF daily analysis and NCAR reanalysed data investigation is undertaken of the ENSO effect on the Pacific storm track during winter. It is shown that mean baroclinicity shows a great increase (decrease) over the Pacific storm track area during El Nino (La Nina) year, which makes the track strengthen (weaken) along with stretching eastwards (withdrawing westwards) and vigor (faint) low level up and pole ward transport of transient edd heat fluxes there, suggesting that the ENSO event plays a crucial role in the maintenance and development of the Pacific storm track. |
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| Keywords: | ENSO storm track baroclinicity |
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