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Modulation of the late summer Northeast China cold vortex by previous-winter ENSO

Shuo Han Fang Zhou Minghong Liu Jian Shi Yihe Fang

大气和海洋科学快报（英文版）2023，Vol.16Issue(6)：34-39,6.
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大气和海洋科学快报（英文版）2023，Vol.16Issue(6)：34-39,6.DOI:10.1016/j.aosl.2023.100371

Modulation of the late summer Northeast China cold vortex by previous-winter ENSO

Modulation of the late summer Northeast China cold vortex by previous-winter ENSO

Shuo Han 1Fang Zhou 1Minghong Liu 2Jian Shi 3Yihe Fang4

作者信息

  • 1. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster,Ministry of Education/Joint International Research Laboratory of Climate and Environment Change,Nanjing University of Inf ormation Science and Technology,Nanjing,China
  • 2. State Key Laboratory of Severe Weather/Institute of Tibetan Plateau Meteorology,Chinese Academy of Meteorological Sciences,Beijing,China
  • 3. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster,Ministry of Education/Joint International Research Laboratory of Climate and Environment Change,Nanjing University of Inf ormation Science and Technology,Nanjing,China||Alfred Wegener Institute,Helmholtz Centre for Polar and Marine Research,Bremerhaven,Germany
  • 4. Regional Climate Center of Shenyang,Liaoning Province Meteorological Administration,and Key Opening Laboratory for Northeast China Cold Vortex Research,China Meteorological Administration,Shenyang,China
  • 折叠

摘要

Abstract

本文利用再分析资料,研究了前冬ENSO对夏末东北冷涡(NCCV)的调制作用.结果表明,前冬ENSO与夏末NCCV强度之间存在显著的相关性,El Nino(La Nina)对应于弱(强)的NCCV.印度洋海盆模态(IOBM)在前冬ENSO对夏末东北亚地区大气环流的影响中起着至关重要的作用.作为东部型El Nino的被动响应,IOBM可以从前冬一直持续至夏末,并在夏末激发"中国中部上空气旋—东北亚地区上空反气旋"的经向遥相关模态,从而不利于NCCV增强.反之亦然.此外,印度洋的信号在中部型El Nino和中性年份相对较弱,使得它们对于NCCV的影响不显著.

关键词

东北冷涡/ENSO/调制/遥相关

Key words

Northeast China cold vortex/ENSO/Modulation/Teleconnection

引用本文复制引用

Shuo Han,Fang Zhou,Minghong Liu,Jian Shi,Yihe Fang..Modulation of the late summer Northeast China cold vortex by previous-winter ENSO[J].大气和海洋科学快报（英文版）,2023,16(6):34-39,6.

基金项目

This work was supported by the National Natural Science Foundation of China[grant numbers 42088101 and 42105046]. （）

大气和海洋科学快报（英文版）

OACSCD

1674-2834

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