P-J遥相关型位置的年际变化特征与ENSO的关系ZXF

发布时间：2018-04-28 17:53

本文选题：P-J遥相关型 + 年际变化　；参考：《海洋湖沼通报》2016年06期

【摘要】：本文利用ERA-40再分析资料对太平洋-日本(Pacific-Japan)遥相关型(简称P-J)在不同ENSO(El Ni?o-Southern Oscillation)事件时的位置特征进行了分析研究,并评估了第五次耦合模式比较计划(CMIP5)各模式对P-J遥相关型的模拟能力,利用CMIP5模式数据验证P-J遥相关型与赤道中东太平洋海温异常之间的相关性。结果表明,ENSO对P-J遥相关型的位置有影响:El Ni?o年,P-J遥相关型位置相对偏西偏南;La Ni?a年,P-J遥相关型位置则相对偏东偏北。ENSO对P-J遥相关型强度有影响:ENSO事件年赤道中东太平洋海温与次年夏季P-J遥相关型强度相关明显,正常年两者没有相关性。本文评估了CMIP5中24个耦合模式,发现大多数模式能很好得模拟出P-J型,并且全球变暖对PJ型位置变化的影响较小,而赤道中东太平洋海温异常对P-J遥相关型强度影响较大。
[Abstract]:In this paper, using ERA-40 reanalysis data, the location characteristics of Pacific Pacific-Japan teleconnection patterns (P-Js) in different ENSO(El Ni?o-Southern events are studied. The ability of each model to simulate P-J teleconnection is evaluated, and the correlation between P-J teleconnection and Pacific SST anomaly in the equatorial Middle East Pacific Ocean is verified by using CMIP5 model data. The results show that the position of the P-J teleconnection type is affected by the position of the P-J teleconnection type. The position of the P-J teleconnection type is relative to the position of La Ni?a year and the position of the P-J teleconnection type. The position of the P-J teleconnection type is relative to the east and the north. ENSO has an effect on the intensity of the P-J teleconnection pattern in the year of the: ENSO event. The correlation between Pacific SST and P-J teleconnection intensity in summer is obvious. There is no correlation between the two in normal years. In this paper, 24 coupling models in CMIP5 are evaluated. It is found that most of the models can well simulate P-J type, and global warming has little effect on PJ type position change, while the equatorial Middle East Pacific SST anomaly has a great influence on P-J teleconnection intensity.
【作者单位】：青岛市城阳区气象局;山东电力建设第三工程公司;
【分类号】：P732;P461.2

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