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太平洋—日本遥相关型的年代际变化特征及其成因

孙颖 徐海明 邓洁淳

孙颖, 徐海明, 邓洁淳. 太平洋—日本遥相关型的年代际变化特征及其成因[J]. 大气科学, 2014, 38(6): 1055-1065. doi: 10.3878/j.issn.1006-9895.1402.13273
引用本文: 孙颖, 徐海明, 邓洁淳. 太平洋—日本遥相关型的年代际变化特征及其成因[J]. 大气科学, 2014, 38(6): 1055-1065. doi: 10.3878/j.issn.1006-9895.1402.13273
SUN Ying, XU Haiming, DENG Jiechun. Interdecadal Variation in Pacific-Japan Teleconnection Patterns and Possible Causes[J]. Chinese Journal of Atmospheric Sciences, 2014, 38(6): 1055-1065. doi: 10.3878/j.issn.1006-9895.1402.13273
Citation: SUN Ying, XU Haiming, DENG Jiechun. Interdecadal Variation in Pacific-Japan Teleconnection Patterns and Possible Causes[J]. Chinese Journal of Atmospheric Sciences, 2014, 38(6): 1055-1065. doi: 10.3878/j.issn.1006-9895.1402.13273

太平洋—日本遥相关型的年代际变化特征及其成因

doi: 10.3878/j.issn.1006-9895.1402.13273
基金项目: 国家重大科学研究计划项目——“太平洋印度洋对全球变暖的响应及其对气候变化的调控作用”2012CB955600,国家自然科学基金项目41275094,江苏高校优势学科建设工程项目PAPD,江苏省高校“青蓝工程”项目

Interdecadal Variation in Pacific-Japan Teleconnection Patterns and Possible Causes

  • 摘要: 本文首先利用NCEP/NCAR和ERA-40再分析资料以及中国753站降水资料对太平洋—日本(Pacific-Japan,简称P-J)遥相关型在上世纪70年代末期气候突变前后的年代际变化特征进行了分析研究。结果表明,在气候突变前后,P-J遥相关型的位置发生了显著的变化,气候突变以后其位置明显向西向南偏移。这种位置的变化同样也反映在纬向风场、高度场上。研究结果还表明,气候突变前后P-J遥相关型的年代际变化与热带太平洋和印度洋海温变化有关。气候突变之前,P-J遥相关型的变化与前期热带太平洋和印度洋海温不存在显著的相关;但在气候突变之后,P-J遥相关型与前期冬春季的热带太平洋、印度洋海温之间存在大范围的显著相关区。这种P-J遥相关型与热带太平洋、印度洋海温相关关系的年代改变可能与1970年代中期以后赤道中东太平洋海温变化振幅明显增强有关。随后,本文采用一个高分辨率的大气环流模式,通过一系列的数值试验也进一步证实了1970年代末期热带太平洋和印度洋海温的年代际变化确实可致使P-J遥相关型位置发生相应的改变。
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出版历程
  • 收稿日期:  2013-09-25
  • 修回日期:  2014-02-20

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