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Change in the ENSO Teleconnection Characteristics in the Boreal Winter

机译:北方冬季ENSO远程连接特性的变化

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References(19) Cited-By(2) Supplementary materials(1) Substantial change was found in the El Niño/Southern Oscillation (ENSO) teleconnection during the boreal winter after the regime shift of the late 1970s. The ENSO teleconnection pattern of the earlier period is characterized by a wave-train-like structure over the Pacific/North American sector that also propagates into the stratosphere. In contrast, the recent ENSO-related extratropical circulation anomalies are characterized by changes in the tropospheric subtropical jet. The interaction of zonal winds with large-scale topography creates meridional dipole-type height anomalies downstream of the Rockies and the Tibetan Plateau, which may characterize the recent ENSO teleconnection pattern.
机译:参考文献(19)被引用的文献(2)补充材料(1)在1970年代后期政权转移后的寒冬期间,厄尔尼诺/南方涛动(ENSO)遥相关现象发生了重大变化。较早时期的ENSO远程连接模式的特征是,太平洋/北美地区的波状结构也传播到平流层。相反,最近的ENSO相关的温带环流异常的特征是对流层副热带急流的变化。纬向风与大范围地形的相互作用在落基山脉和青藏高原的下游形成子午线偶极型高度异常,这可能是近期ENSO遥相关型的特征。

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