| 准四年周期的北半球夏季遥相关与东亚夏季风环流的相互关系 |
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| 引用本文： | 谭言科,何金海.准四年周期的北半球夏季遥相关与东亚夏季风环流的相互关系[J].南京气象学院学报,1998,21(1):70-79. |
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| 作者姓名： | 谭言科 何金海 |
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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ＮＭＣ的２００ｈＰａ和８５０ｈＰａ风场资料研究了北半球夏季遥相关和东亚夏季风异常环流在准４年时间尺度上的相互关系。研究发现当北半球夏季出现积雪强迫型遥相关时，东亚－西太平洋地区既存在异常纬向环流，也存在异常经向环流；而当出现东亚太平洋型遥相关时，东亚－西太平洋地区以异常纬向环流为主。分析还发现源于北太平洋的异常涡旋在向南传播的过程中，先取西南路径，在到达菲律宾东部以后折向东南。
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| 关 键 词： | 季风 环流 准4年周期 北半球 遥相关 |
NORTHERN QUASI 4 YEAR TELECONNECTION PATTERN RELATED TO EAST ASIAN MONSOON CIRCULATION IN SUMMER |
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| Tan Yanke,He Jinhai.NORTHERN QUASI 4 YEAR TELECONNECTION PATTERN RELATED TO EAST ASIAN MONSOON CIRCULATION IN SUMMER[J].Journal of Nanjing Institute of Meteorology,1998,21(1):70-79. |
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| Authors: | Tan Yanke He Jinhai |
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| Abstract: | Based on NMC 200 hPa and 850 hPa wind, a study is undertaken of the relation of northern teleconnection to east Asian monsoon circulation anomaly in summer. Evidence suggests that when northern snow forced teleconnection is generated in this season, anomalous zonal/meridional circulations are revealed in east Asia-western Pacific band; with east Asia-Pacific teleconnection formed, anomalous zonal circulation is dominant over that band; the anomalous vortex of north Pacific origin moves southwestward and, reaching the eastern Philippines, turns southeastward to continue its journey. |
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| Keywords: | summer teleconnection pattern east Asian summer monsoon quasi 4 year period |
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