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The Influence of Tibetan Plateau on the Interannual Variability of Atmospheric Circulation over Tropical Pacific


doi: 10.1007/s00376-997-0045-6

  • An atmospheric general circulation model (AGCM) with 9 sigma levels in the vertical and rhomboidal trunction at wave number 15 in the horizontal is run for 10 years with and without the Tibetan Plateau respectively (called TP and NTP experiment). The result simulated is used to investigate the influence of the Tibetan Plateau on the interannual variability of atmospheric circulation over tropical Pacific. It is found that the spatial and temporal dis-tributions of the interannual variability of the wind field over tropical Pacific in TP experiment and those in NTP ex-periment agree with each other except for the intensity, and both of them are consistent with observations well. Fur-ther analysis shows that in El Nino period the Tibetan Plateau strengthens the intensity of El Nino event, while in La Nina period it weakens the intensity of La Nina
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    [6] hai zhi, Zihui YANG, Rong-Hua ZHANG, Pengfei LIN, Jifeng QI, Huang Yu, Dong Meng, 2023: Asymmetry of Salinity Variability in the Tropical Pacific during Interdecadal Pacific Oscillation Phases, ADVANCES IN ATMOSPHERIC SCIENCES.  doi: 10.1007/s00376-022-2284-y
    [7] ZHI Hai, ZHANG Rong-Hua, LIN Pengfei, WANG Lanning, 2015: Simulation of Salinity Variability and the Related Freshwater Flux Forcing in the Tropical Pacific: An Evaluation Using the Beijing Normal University Earth System Model (BNU-ESM), ADVANCES IN ATMOSPHERIC SCIENCES, 32, 1551-1564.  doi: 10.1007/s00376-015-4240-6
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    [13] Anmin DUAN, Ruizao SUN, Jinhai HE, 2017: Impact of Surface Sensible Heating over the Tibetan Plateau on the Western Pacific Subtropical High: A Land-Air-Sea Interaction Perspective, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 157-168.  doi: 10.1007/s00376-016-6008-z
    [14] Xingyan ZHOU, Riyu LU, Guanghua CHEN, 2018: Impact of Interannual Variation of Synoptic Disturbances on the Tracks and Landfalls of Tropical Cyclones over the Western North Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 1469-1477.  doi: 10.1007/s00376-018-8055-0
    [15] Xingyan ZHOU, Riyu LU, Guanghua CHEN, Liang WU, 2018: Interannual Variations in Synoptic-Scale Disturbances over the Western North Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 507-517.  doi: 10.1007/s00376-017-7143-x
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Manuscript History

Manuscript received: 10 January 1997
Manuscript revised: 10 January 1997
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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The Influence of Tibetan Plateau on the Interannual Variability of Atmospheric Circulation over Tropical Pacific

  • 1. Department of Atmospheric Sciences, Nanjing University 210093,

Abstract: An atmospheric general circulation model (AGCM) with 9 sigma levels in the vertical and rhomboidal trunction at wave number 15 in the horizontal is run for 10 years with and without the Tibetan Plateau respectively (called TP and NTP experiment). The result simulated is used to investigate the influence of the Tibetan Plateau on the interannual variability of atmospheric circulation over tropical Pacific. It is found that the spatial and temporal dis-tributions of the interannual variability of the wind field over tropical Pacific in TP experiment and those in NTP ex-periment agree with each other except for the intensity, and both of them are consistent with observations well. Fur-ther analysis shows that in El Nino period the Tibetan Plateau strengthens the intensity of El Nino event, while in La Nina period it weakens the intensity of La Nina

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