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Volume 6 Issue 2

Apr.  1989

Article Contents

Climatic Study on the Summer Tropical Easterly Jet at 200 hPa


doi: 10.1007/BF02658017

  • The low latitude easterlies at 200 hPa in summer (May-October) is analysed climatically during the 13-year period from 1968 to 1980, with a special emphasis on the relationship between the anomalous tropical easterly jet stream over South Asia and the low latitude atmospheric circulation, and also the summer monsoon precipitation in India. The compositing analysis shows that the tropical easterly jet stream over South Asia has five anomalous patterns at 200 hPa i.e. the western pattern, middle pattern, eastern pattern, two-branch pattern and multi-core pattern. Evidence has shown that the precipitaion in India anomalously increased during the anomalous period of the western pattern and the middle pattern, but reverse case is true in the eastern pattern. Some different anomalies of the precipitation in different area of India were found during the other two anomalous pattern.
  • [1] Lu Jingxi, Ding Yihui, 1989: Medium-Range Oscillations in the Summer Tropical Easterlies at 200 hPa, ADVANCES IN ATMOSPHERIC SCIENCES, 6, 301-312.  doi: 10.1007/BF02661536
    [2] Ruifen ZHAN, Yuqing WANG, Yihui DING, 2022: Impact of the Western Pacific Tropical Easterly Jet on Tropical Cyclone Genesis Frequency over the Western North Pacific, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 235-248.  doi: 10.1007/s00376-021-1103-1
    [3] Zhang Ren, 1996: Characteristics of Soliton with Dynamic Constraints on its Existence / Propagation in Tropical Easterly Wave, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 325-339.  doi: 10.1007/BF02656850
    [4] Dai Xiaosu, Ding Yihui, 1994: A Modeling Study of Climatic Change and Its Implication for Agriculture in China Part I: Climatic Change in China, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 343-352.  doi: 10.1007/BF02658154
    [5] Huang Jiayou, 2000: The Response of Climatic Jump in Summer in North China to Global Warming, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 184-192.  doi: 10.1007/s00376-000-0002-0
    [6] S. V. Singh, S. R. Inamdar, R. H. Kripalani, K. D. Prasad, 1986: RELATIONSHIP BETWEEN 500 hPa RIDGE AXIS POSITIONS OVER THE INDIAN AND THE WEST PACIFIC REGIONS AND THE INDIAN SUMMER MONSOON RAINFALL, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 349-359.  doi: 10.1007/BF02678655
    [7] Ghulam RASUL, Qamar-uz-Zaman CHAUDHRY, ZHAO Sixiong, ZENG Qingcun, QI Linlin, ZHANG Gaoying, 2005: A Diagnostic Study of Heavy Rainfall in Karachi Due to Merging of a Mesoscale Low and a Diffused Tropical Depression during South Asian Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 375-391.  doi: 10.1007/BF02918751
    [8] Zhong Zhong, Wang Hanjie, 2000: A Study of the Relationship between Low-level Jet and Inversion Layer over an Agroforest Ecosystem in East China Plain?, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 299-310.  doi: 10.1007/s00376-000-0011-z
    [9] CHEN Hua*, 2015: Downstream Development of Baroclinic Waves in the Midlatitude Jet Induced by Extratropical Transition: A Case Study, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 528-540.  doi: 10.1007/s00376-014-3263-8
    [10] Jin Long, Ju Weimin, Miao Qilong, 2000: Study on Ann-Based Multi-Step Prediction Model of Short-Term Climatic Variation, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 157-164.  doi: 10.1007/s00376-000-0051-4
    [11] Wu Xiangding, Lin Zhenyao, Sun Li, 1988: A PRELIMINARY STUDY ON THE CLIMATIC CHANGE OF THE HENGDUAN MOUNTAINS AREA SINCE 1600 A.D., ADVANCES IN ATMOSPHERIC SCIENCES, 5, 437-443.  doi: 10.1007/BF02656789
    [12] Ji Jinjun, 1986: A SIMPLIFIED MODEL STUDY ON THE SHORT-TERM CLIMATIC EFFECT OF SNOWFALL ANOMALY IN MID-HIGH LATITUDES, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 443-453.  doi: 10.1007/BF02657934
    [13] LIN Zhongda, LU Riyu, 2005: Interannual Meridional Displacement of the East Asian Upper-tropospheric Jet Stream in Summer, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 199-211.  doi: 10.1007/BF02918509
    [14] XIANG Yang, YANG Xiuqun, 2012: The Effect of Transient Eddy on Interannual Meridional Displacement of Summer East Asian Subtropical Jet, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 484-492.  doi: 10.1007/s00376-011-1113-5
    [15] LU Riyu, YE Hong, Jong-Ghap JHUN, 2011: Weakening of Interannual Variability in the Summer East Asian Upper-tropospheric Westerly Jet since the Mid-1990s, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1246-1258.  doi: 10.1007/s00376-011-0222-5
    [16] LI Chaofan, LIN Zhongda, 2015: Predictability of the Summer East Asian Upper-Tropospheric Westerly Jet in ENSEMBLES Multi-Model Forecasts, ADVANCES IN ATMOSPHERIC SCIENCES, 32, 1669-1682.  doi: 10.1007/s00376-015-5057-z
    [17] Yin Shuxin, Tan Xinzhen, 1989: Branches of the Summer Asian Lower-Level Jet Stream and Its Influence on the Rain Belt in China, ADVANCES IN ATMOSPHERIC SCIENCES, 6, 377-389.  doi: 10.1007/BF02661543
    [18] Xinyu LI, Riyu LU, Gen LI, 2021: Different Configurations of Interannual Variability of the Western North Pacific Subtropical High and East Asian Westerly Jet in Summer, ADVANCES IN ATMOSPHERIC SCIENCES, 38, 931-942.  doi: 10.1007/s00376-021-0339-0
    [19] Si-Ning LING, Ri-Yu LU, Hao Liu, Yali Yang, 2022: Interannual Meridional Displacement of Upper-tropospheric Westerly Jet over the Western East Asia in Summer, ADVANCES IN ATMOSPHERIC SCIENCES.  doi: 10.1007/s00376-022-2279-8
    [20] Yu Rucong, Li Wei, Zhang Xuehong, LiuYimin, Yu Yongqiang, Liu Hailong, Zhou Tianjun, 2000: Climatic Features Related to Eastern China Summer Rainfalls in the NCAR CCM3, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 503-518.  doi: 10.1007/s00376-000-0014-9

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Manuscript History

Manuscript received: 10 April 1989
Manuscript revised: 10 April 1989
通讯作者: 陈斌, bchen63@163.com
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Climatic Study on the Summer Tropical Easterly Jet at 200 hPa

  • 1. National Research Center for Marine Environment Forecasts, State Oceanic Administration, Beijing,Academy of Meteorology Science, State Meteorological Administration, Beijing

Abstract: The low latitude easterlies at 200 hPa in summer (May-October) is analysed climatically during the 13-year period from 1968 to 1980, with a special emphasis on the relationship between the anomalous tropical easterly jet stream over South Asia and the low latitude atmospheric circulation, and also the summer monsoon precipitation in India. The compositing analysis shows that the tropical easterly jet stream over South Asia has five anomalous patterns at 200 hPa i.e. the western pattern, middle pattern, eastern pattern, two-branch pattern and multi-core pattern. Evidence has shown that the precipitaion in India anomalously increased during the anomalous period of the western pattern and the middle pattern, but reverse case is true in the eastern pattern. Some different anomalies of the precipitation in different area of India were found during the other two anomalous pattern.

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