Advanced Search
Impact Factor: 5.8

Volume 15 Issue 2

Apr.  1998

Article Contents
Article >  ADVANCES IN ATMOSPHERIC SCIENCES  > 1998 >  15(2): 135-151

The Westerly Anomalies over the Tropical Pacific and Their Dynamical Effect on the ENSO Cycles during 1980-1994

  • 1.

    Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080


doi: 10.1007/s00376-998-0035-3

  • In this paper, the zonal wind anomalies in the lower troposphere over the tropical Pacific during 1980-1994 are analyzed by using the observed data. The results show that during the formation of the 1982 / 83, 1986 / 87 and 1991/92 ENSO events, there were the larger westerly anomalies in the lower troposphere over the equatorial Pacific. Moreover, it is explained by using the correlation analyses that the westerly anomalies over the equatorial Pacific could cause the warm episodes of the equatorial central and eastern Pacific. A simple air-sea coupled model is used to discuss theoretically the dynamical effect of the observed westerly anomalies of wind stress near the sea surface of the equatorial Pacific on the ENSO cycle occurred in the period of 1981-1983. It is shown by using the theoretical calculations of the equatorial oceanic Kelvin wave and Rossby waves responding to the forcing of the observed anomalies of zonal wind stress near the sea surface of the equatorial Pacific that the westerly anomalies of wind stress near the sea surface of the equatorial Pacific make significant dynamical ef?fect on the ENSO cycles occurred in the period of 1982-1983.
  • [1] Huang Ronghui, Zhang Renhe, Zhang Qingyun, 2000: The 1997/ 98 ENSO Cycle and Its Impact on Summer Climate Anomalies in East Asia, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 348-362.  doi: 10.1007/s00376-000-0028-3
    [2] LI Rui, ZHANG Zuowei, WU Lixin, 2014: High-Resolution Modeling Study of the Kuroshio Path Variations South of Japan, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 1233-1244.  doi: 10.1007/s00376-014-3230-4
    [3] ZONG Haifeng, 2014: A Study on the Physical Processes of the Formation of the ENSO Cycle, ADVANCES IN ATMOSPHERIC SCIENCES, 31, 1395-1406.  doi: 10.1007/s00376-014-3224-2
    [4] LI Chun, SUN Jilin, 2015: Role of the Subtropical Westerly Jet Waveguide in a Southern China Heavy Rainstorm in December 2013, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 601-612.  doi: 10.1007/s00376-014-4099-y
    [5] Li Chongyin, Sun Shuqing, Mu Mingquan, 2001: Origin of the TBO-Interaction between Anomalous East-Asian Winter Monsoon and ENSO Cycle, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 554-566.  doi: 10.1007/s00376-001-0044-y
    [6] Chen Xingyue, Wang Huijun, Xue Feng, Zeng Qingcun, 2001: Intraseasonal Oscillation: the Global Coincidence and Its Relationship with ENSO Cycle, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 445-453.  doi: 10.1007/BF02919323
    [7] HUANG Ronghui, CHEN Wen, YANG Bangliang, ZHANG Renhe, 2004: Recent Advances in Studies of the Interaction between the East Asian Winter and Summer Monsoons and ENSO Cycle, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 407-424.  doi: 10.1007/BF02915568
    [8] Xu Jianjun, Zhu Qiangen, Zhou Tiehan, 1998: Monsoon Circulation Related to ENSO Phase-Locking, ADVANCES IN ATMOSPHERIC SCIENCES, 15, 267-276.  doi: 10.1007/s00376-998-0045-1
    [9] Chengyang GUAN, Xin WANG, Haijun YANG, 2023: Understanding the Development of the 2018/19 Central Pacific El Niño, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 177-185.  doi: 10.1007/s00376-022-1410-1
    [10] ZHANG Zuqiang, ZHANG Renhe, Song YANG, 2007: Roles of Multi-Scale Disturbances over the Tropical North Pacific in the Turnabout of 1997--98 El Nino, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 581-590.  doi: 10.1007/s00376-007-0581-0
    [11] LIU Yudi, WANG Bin, JI Zhongzhen, 2003: Research on Atmospheric Motion in Horizontal Discrete Grids, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 139-148.  doi: 10.1007/BF03342058
    [12] Hanying LI, Peng HU, Qiong ZHANG, Ashish SINHA, Hai CHENG, 2021: Understanding Interannual Variations of the Local Rainy Season over the Southwest Indian Ocean, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 1852-1862.  doi: 10.1007/s00376-021-1065-3
    [13] Tong XIE, Liguang WU, Yecheng FENG, Jinghua YU, 2024: Alignment of Track Oscillations during Tropical Cyclone Rapid Intensification, ADVANCES IN ATMOSPHERIC SCIENCES, 41, 655-670.  doi: 10.1007/s00376-023-3073-y
    [14] WANG Yafei, Fujiyaoshi YASUSHI, Kato KURANOSHIN, 2003: A Teleconnection Pattern Related with the Development of the Okhotsk High and the Northward Progress of the Subtropical High in East Asian Summer, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 237-244.  doi: 10.1007/s00376-003-0009-4
    [15] YAN Bangliang, 2005: On the Mechanism of the Locking of the El Ni o Event Onset Phase to Boreal Spring, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 741-750.  doi: 10.1007/BF02918717
    [16] N. R. Parija, S. K. Dash, 1995: Some Aspects of the Characteristics of Monsoon Disturbances Using a Combined Barotropic-Baroclinic Model, ADVANCES IN ATMOSPHERIC SCIENCES, 12, 487-506.  doi: 10.1007/BF02657007
    [17] Ren Shuzhan, 1991: New Approach to Study the Evolution of Rossby Wave Packet, ADVANCES IN ATMOSPHERIC SCIENCES, 8, 79-86.  doi: 10.1007/BF02657366
    [18] Luo Dehai, Ji Liren, 1988: ALGEBRAIC ROSSBY SOLITARY WAVE AND BLOCKING IN THE ATMOSPHERE, ADVANCES IN ATMOSPHERIC SCIENCES, 5, 445-454.  doi: 10.1007/BF02656790
    [19] Li Chongyin, Han-Ru Cho, Jough-Tai Wang, 2002: CISK Kelvin Wave with Evaporation-Wind Feedback and Air-Sea Interaction A Further Study of Tropical Intraseasonal Oscillation Mechanism, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 379-390.  doi: 10.1007/s00376-002-0073-1
    [20] Luo Dehai, 1999: Bifurcation of Nonlinear Kelvin Wave-CISK with Conditional Heating in a Truncated Spectral Model: A Possible Mechanism of 30-60-Day Osculation at the Equator, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 279-296.  doi: 10.1007/BF02973088
PDF

Get Citation+

shu
Export:  

Share Article

Article Metrics

Article Views: 1289 Times

PDF downloads: 1085 Times

Cited by: Times
  • 加载中

    • Manuscript History

    Manuscript received: 10 April 1998
    Manuscript revised: 10 April 1998
    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 Westerly Anomalies over the Tropical Pacific and Their Dynamical Effect on the ENSO Cycles during 1980-1994

    • 1. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080,Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080
    • Manuscript received: 1998-04-10
    • Manuscript revised: 1998-04-10

    Abstract: In this paper, the zonal wind anomalies in the lower troposphere over the tropical Pacific during 1980-1994 are analyzed by using the observed data. The results show that during the formation of the 1982 / 83, 1986 / 87 and 1991/92 ENSO events, there were the larger westerly anomalies in the lower troposphere over the equatorial Pacific. Moreover, it is explained by using the correlation analyses that the westerly anomalies over the equatorial Pacific could cause the warm episodes of the equatorial central and eastern Pacific. A simple air-sea coupled model is used to discuss theoretically the dynamical effect of the observed westerly anomalies of wind stress near the sea surface of the equatorial Pacific on the ENSO cycle occurred in the period of 1981-1983. It is shown by using the theoretical calculations of the equatorial oceanic Kelvin wave and Rossby waves responding to the forcing of the observed anomalies of zonal wind stress near the sea surface of the equatorial Pacific that the westerly anomalies of wind stress near the sea surface of the equatorial Pacific make significant dynamical ef?fect on the ENSO cycles occurred in the period of 1982-1983.

      HTML

    Catalog

      Publish with AAS

      Contact us

      Links

      Copyright © 2018-2028 ADVANCES IN ATMOSPHERIC SCIENCES 京ICP备14024088号-7

      Supported by: Beijing Renhe Information Technology Co. Ltd  support: info@rhhz.net  

      /

      DownLoad:  Full-Size Img  PowerPoint
      Return
      Return