| 夏季欧亚中高纬持续流型特征Ⅱ:年代际变化和外源强迫 |
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| 引用本文： | 潘婕,彭京备,王盘兴,纪立人.夏季欧亚中高纬持续流型特征Ⅱ:年代际变化和外源强迫[J].气象科学,2004,24(3):253-260. |
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| 作者姓名： | 潘婕 彭京备 王盘兴 纪立人 |
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| 作者单位： | 1. 中科院大气物理研究所,北京,100029
2. 南京气象学院大气科学系,南京,210044 |
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| 基金项目： | 中科院重大方向项目ZKCX2 -SW - 2 10，国家自然科学基金资助项目 (4 0 10 5 0 0 6 )的资助 |
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| 摘 要： | 在“夏季欧亚中高纬持续流型特征Ⅰ：流型指数与持续流型”的基础上，分析了夏季欧亚中高纬流型指数的年代际变化特征．讨论了流型指数年代际变化与我国降水年代际变化之间的联系，并初步探讨了加热场和海温异常的影响。结果表明：(1)夏季欧亚中高纬流型指数有明显的年代际变化．且与我国江淮流域、华北的降水分别有相反的相关关系；(2)外源强迫对夏季中高纬度持续环流及其年代际变化的作用是不可忽视的。
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| 关 键 词： | 欧亚中高纬 典型持续流型 年代际变化 外源强迫 |
| 收稿时间： | 2003/8/28 0:00:00 |
| 修稿时间： | 2003年8月28日 |
STUDY ON THE SUMMERTIME PERSISTENT CIRCULATION PATTERN FEATURES OVER ASIAN-EUROPEAN MID-HIGH LATITUDE.PART Ⅱ:DECADAL VARIANCE AND EXTERNAL SOURCE FORCE |
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| Pan Jie,Peng Jingbei,Wang Panxing and Ji Liren.STUDY ON THE SUMMERTIME PERSISTENT CIRCULATION PATTERN FEATURES OVER ASIAN-EUROPEAN MID-HIGH LATITUDE.PART Ⅱ:DECADAL VARIANCE AND EXTERNAL SOURCE FORCE[J].Scientia Meteorologica Sinica,2004,24(3):253-260. |
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| Authors: | Pan Jie Peng Jingbei Wang Panxing and Ji Liren |
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| Institution: | Pan Jie 1 Peng Jingbei 1 Wang Panxing 2 Ji Liren 1 |
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| Abstract: | Decadal variance of the summer typical persistent circulation patterns over Eurasia mid-high latitude is analyzed based on the previous part I, and the relations between circulation pattern index's decadal variance characteristic and decadal variation tendency of the precipitation of China are discussed, and preliminary exploration of the effect of heat field and sea surface temperature has been went on. The results show: ( 1) the summer typical persistent circulation patterns over Eurasia mid-high latitude have obvious decadal variance, and the correlation between itself and precipitation over Jianghuai River basin and North China is contrary; ( 2) the decadal variance of the summer persistent circulation patterns over Eurasia mid-high latitude induced by the external source force can't be ignored. |
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| Keywords: | Asian-European mid-high latitude Summer typical persistent circulation pattern Decadal variance External source force |
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