Advanced Search
Article Contents

The Springtime North Asia Cyclone Activity Index and the Southern Annular Mode


doi: 10.1007/s00376-008-0673-5

  • The relationship between the North Asia cyclone (NAC) activity and the Southern Annular Mode (SAM) is documented in this research. The definition of the NAC index (NACI) is based on the atmospheric relative vorticity in North Asia. The analysis yields a significant positive correlation between previous winter Southern Annular Mode index (SAMI) and spring NACI in the interannual variability, with a correlation coefficient of 0.51 during 1948--2000. Analysis of the NAC-related and SAM-related atmospheric general circulation variability demonstrates such a relationship. The study further reveals that when the winter SAM becomes strong, the springtime atmospheric convection in tropical western Pacific will intensify and the local Hadley circulation will be strengthened. As a result, the abnormal subsiding motion over South China makes the temperature gradient intensified in the low level and strengthens the jet in the high level, both of which are beneficial to the development of NAC activity.
  • [1] Seong-Joong KIM, LÜ Junmei, and Baek-Min KIM, 2014: The Southern Annular Mode (SAM) in PMIP2 Simulations of the Last Glacial Maximum, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 863-878.  doi: 10.1007/s00376-013-3179-8
    [2] FENG Juan, LI Jianping, Yun LI, ZHU Jianlei, XIE Fei, 2015: Relationships among the Monsoon-like Southwest Australian Circulation, the Southern Annular Mode, and Winter Rainfall over Southwest Western Australia, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 1063-1076.  doi: 10.1007/s00376-014-4142-z
    [3] Fei ZHENG, Jianping LI, Fred KUCHARSKI, Ruiqiang DING, Ting LIU, 2018: Dominant SST Mode in the Southern Hemisphere Extratropics and Its Influence on Atmospheric Circulation, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 881-895.  doi: 10.1007/s00376-017-7162-7
    [4] Fei ZHENG, Jianping LI, Shuailei YAO, 2021: Intermodel Diversity of Simulated Long-term Changes in the Austral Winter Southern Annular Mode: Role of the Southern Ocean Dipole, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 375-386.  doi: 10.1007/s00376-020-0241-1
    [5] WANG Huijun, 2006: Linkage Between the Northeast Mongolian Precipitation and the Northern Hemisphere Zonal Circulation, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 659-664.  doi: 10.1007/s00376-006-0659-0
    [6] Xue Feng, Zeng Qingcun, 1999: Diagnostic Study on Seasonality and Interannual Variability of Wind Field, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 537-543.  doi: 10.1007/s00376-999-0029-9
    [7] Fei ZHENG, Jianping LI, Ruiqiang DING, 2017: Influence of the Preceding Austral Summer Southern Hemisphere Annular Mode on the Amplitude of ENSO Decay, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 1358-1379.  doi: 10.1007/s00376-017-6339-4
    [8] Ji Liren, S.Tibaldi, 1984: NUMERICAL EXPERIMENT ON THE SEASONAL TRANSITION OF GENERAL CIRCULATION OVER ASIA - PART Ⅰ, ADVANCES IN ATMOSPHERIC SCIENCES, 1, 128-149.  doi: 10.1007/BF03187624
    [9] Ji Liren, S.Tibaldi, 1984: NUMERICAL EXPERIMENTS ON THE SEASONAL TRANSITION OF GENERAL CIRCULATION OVER ASIA--PART Ⅱ, ADVANCES IN ATMOSPHERIC SCIENCES, 1, 188-205.  doi: 10.1007/BF02678131
    [10] S. PANCHEV, T. SPASSOVA, 2005: Simple General Atmospheric Circulation and Climate Models with Memory, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 765-769.  doi: 10.1007/BF02918720
    [11] Wu Renguang, Chen Lieting, 1998: Decadal Variation of Summer Rainfall in the Yangtze-Huaihe River Valley and Its Relationship to Atmospheric Circulation Anomalies over East Asia and Western North Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 15, 510-522.  doi: 10.1007/s00376-998-0028-2
    [12] Zhao Shengju, 1986: RELATION BETWEEN LONG-DISTANCE MIGRATION OF ORIENTAL ARMYWORMS AND SEASONAL VARIATION OF GENERAL CIRCULATION OVER EAST ASIA, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 215-226.  doi: 10.1007/BF02682555
    [13] WEN Xinyu, ZHOU Tianjun, WANG Shaowu, WANG Bin, WAN Hui, LI Jian, 2007: Performance of a Reconfigured Atmospheric General Circulation Model at Low Resolution, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 712-728.  doi: 10.1007/s00376-007-0712-7
    [14] Zhang Xin, Wang Bin, Ji Zhongzhen, 2001: Performance of a Parallel Finite Difference Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1175-1184.  doi: 10.1007/s00376-001-0031-3
    [15] Wu Guoxiong, Liu Hui, Zhao Yucheng, Li Weiping, 1996: A Nine-layer Atmospheric General Circulation Model and Its Performance, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 1-18.  doi: 10.1007/BF02657024
    [16] Liang Xinzhong, 1996: Description of A Nine-Level Grid Point Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 269-298.  doi: 10.1007/BF02656847
    [17] Zhang Xuehong, 1990: Dynamical Framework of IAP Nine-Level Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 67-77.  doi: 10.1007/BF02919169
    [18] SUN Dan, XUE Feng, ZHOU Tianjun, 2013: Impacts of Two Types of El Nio on Atmospheric Circulation in the Southern Hemisphere, ADVANCES IN ATMOSPHERIC SCIENCES, 30, 1732-1742.  doi: 10.1007/s00376-013-2287-9
    [19] SHANG Lin, LIU Yi, TIAN Wenshou, ZHANG Yuli, 2015: Effect of Methane Emission Increases in East Asia on Atmospheric Circulation and Ozone, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 1617-1627.  doi: 10.1007/s00376-015-5028-4
    [20] Li Weiping, Theo Chidiezie Chineke, Liu Xin, Wu Guoxiong, 2001: Atmospheric Diabatic Heating and Summertime Circulation in Asia-Africa Area, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 257-269.  doi: 10.1007/s00376-001-0018-0

Get Citation+

Export:  

Share Article

Manuscript History

Manuscript received: 10 July 2008
Manuscript revised: 10 July 2008
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

The Springtime North Asia Cyclone Activity Index and the Southern Annular Mode

  • 1. Nansen-Zhu International Research Centre (NZC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS), Beijing 100029; Graduate University of Chinese Academy of Sciences, Beijing 100049;Nansen-Zhu International Research Centre (NZC), Institute of Atmospheric Physics (IAP), Chinese Academy of Sciences (CAS), Beijing 100029

Abstract: The relationship between the North Asia cyclone (NAC) activity and the Southern Annular Mode (SAM) is documented in this research. The definition of the NAC index (NACI) is based on the atmospheric relative vorticity in North Asia. The analysis yields a significant positive correlation between previous winter Southern Annular Mode index (SAMI) and spring NACI in the interannual variability, with a correlation coefficient of 0.51 during 1948--2000. Analysis of the NAC-related and SAM-related atmospheric general circulation variability demonstrates such a relationship. The study further reveals that when the winter SAM becomes strong, the springtime atmospheric convection in tropical western Pacific will intensify and the local Hadley circulation will be strengthened. As a result, the abnormal subsiding motion over South China makes the temperature gradient intensified in the low level and strengthens the jet in the high level, both of which are beneficial to the development of NAC activity.

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return