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The Effects of the Thermal Anomalies over the Tibetan Plateau and Its Vicinities on Climate Variability in China


doi: 10.1007/BF02915565

  • The evident effects of the thermal anomalies over the Tibetan Plateau (TP) and its vicinities are summarized and discussed in this paper. By the singular value decomposition (SVD) technique and numerical simulations of the effect of the snow depth anomaly over the TP, it is shown that the snow depth anomaly, especially in winter, is one of the factors influencing precipitation in China, and the winter snow anomaly is more important than the spring one. The relations between the sensible heat anomaly over the TP and the intensity of the South China Sea summer monsoon (SCSSM) are studied, too, and two key areas of the sensible heat anomaly over the TP are found. The relationships between the South Asia High (SAH)and the precipitation in the years with typical droughts or floods in the mid to lower valleys of the Yangtze River (MLVYR) and North China are investigated in some detail. It is found that not only the intensity of the SAH over the TP, but also the 100-hPa height in a large area influences the precipitation in the above two regions. The effects of the SAH on the onsets of the tropical Asian summer monsoon (TASM) including the SCSSM and the tropical Indian summer monsoon (TISM) are studied as well. It is found that the onset times of both the SCSSM and the TISM are highly dependent upon the latitudinal position of the SAH center.
  • [1] Zhou Yushu, Deng Guo, Gao Shouting, Xu Xiangde, 2002: The Wave Train Characteristics of Teleconnection Caused by the Thermal Anomaly of the Underlying Surface of the Tibetan Plateau. Part Ⅰ: Data Analysis, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 583-593.  doi: 10.1007/s00376-002-0002-3
    [2] DING Yihui, LI Chongyin, LIU Yanju, 2004: Overview of the South China Sea Monsoon Experiment, ADVANCES IN ATMOSPHERIC SCIENCES, 21, 343-360.  doi: 10.1007/BF02915563
    [3] Jiang Jing, Qian Yongfu, 1999: The Study on the Interannual Variation and the Mechanism of the South China Sea Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 16, 544-558.  doi: 10.1007/s00376-999-0030-3
    [4] Jinghua CHEN, Xiaoqing WU, Chunsong LU, Yan YIN, 2022: Seasonal and Diurnal Variations of Cloud Systems over the Eastern Tibetan Plateau and East China: A Cloud-resolving Model Study, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 1034-1049.  doi: 10.1007/s00376-021-0391-9
    [5] HUANG Gang, QU Xia, HU Kaiming, 2011: The Impact of the Tropical Indian Ocean on South Asian High in Boreal Summer, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 421-432.  doi: 10.1007/s00376-010-9224-y
    [6] T. N. KRISHNAMURTI, A. D. SAGADEVAN, A. CHAKRABORTY, A. K. MISHRA, A. SIMON, 2009: Improving Multimodel Weather Forecast of Monsoon Rain Over China Using FSU Superensemble, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 813-839.  doi: 10.1007/s00376-009-8162-z
    [7] Xuke LIU, Xiaojing JIA, Min WANG, Qifeng QIAN, 2022: The Impact of Tibetan Plateau Snow Cover on the Summer Temperature in Central Asia, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 1103-1114.  doi: 10.1007/s00376-021-1011-4
    [8] Yin ZHAO, Tianjun ZHOU, Wenxia ZHANG, Jian LI, 2022: Change in Precipitation over the Tibetan Plateau Projected by Weighted CMIP6 Models, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 1133-1150.  doi: 10.1007/s00376-022-1401-2
    [9] Chen SHENG, Bian HE, Guoxiong WU, Yimin LIU, Shaoyu ZHANG, 2022: Interannual Influences of the Surface Potential Vorticity Forcing over the Tibetan Plateau on East Asian Summer Rainfall, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 1050-1061.  doi: 10.1007/s00376-021-1218-4
    [10] WANG Zhifu, QIAN Yongfu, 2009: The Relationship of Land-Ocean Thermal Anomaly Difference with Mei-yu and South China Sea Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 169-179.  doi: 10.1007/s00376-009-0169-y
    [11] Wang Shiyu, Qian Yongfu, 2001: Modeling of the 1998 East Asian Summer Monsoon by a Limited Area Model with Incorporated Coordinate, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 209-224.  doi: 10.1007/s00376-001-0014-4
    [12] Shenming FU, Jie CAO, Xingwen JIANG, Jianhua SUN, 2017: On the Variation of Divergent Flow: An Eddy-flux Form Equation Based on the Quasi-geostrophic Balance and Its Application, ADVANCES IN ATMOSPHERIC SCIENCES, 34, 599-612.  doi: 10.1007/s00376-016-6212-x
    [13] Zhang Yaocun, Qian Yongfu, 2002: Mechanism of Thermal Features over the Indo-China Peninsula and Possible Effects on the Onset of the South China Sea Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 885-900.  doi: 10.1007/s00376-002-0053-5
    [14] HUANG Ronghui, GU Lei, ZHOU Liantong, WU Shangsen, 2006: Impact of the Thermal State of the Tropical Western Pacific on Onset Date and Process of the South China Sea Summer Monsoon, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 909-924.  doi: 10.1007/s00376-007-0100-3
    [15] Li Chongyin, Wu Jingbo, 2000: On the Onset of the South China Sea Summer Monsoon in 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 193-204.  doi: 10.1007/s00376-000-0003-z
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Manuscript received: 10 May 2004
Manuscript revised: 10 May 2004
通讯作者: 陈斌, bchen63@163.com
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The Effects of the Thermal Anomalies over the Tibetan Plateau and Its Vicinities on Climate Variability in China

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

Abstract: The evident effects of the thermal anomalies over the Tibetan Plateau (TP) and its vicinities are summarized and discussed in this paper. By the singular value decomposition (SVD) technique and numerical simulations of the effect of the snow depth anomaly over the TP, it is shown that the snow depth anomaly, especially in winter, is one of the factors influencing precipitation in China, and the winter snow anomaly is more important than the spring one. The relations between the sensible heat anomaly over the TP and the intensity of the South China Sea summer monsoon (SCSSM) are studied, too, and two key areas of the sensible heat anomaly over the TP are found. The relationships between the South Asia High (SAH)and the precipitation in the years with typical droughts or floods in the mid to lower valleys of the Yangtze River (MLVYR) and North China are investigated in some detail. It is found that not only the intensity of the SAH over the TP, but also the 100-hPa height in a large area influences the precipitation in the above two regions. The effects of the SAH on the onsets of the tropical Asian summer monsoon (TASM) including the SCSSM and the tropical Indian summer monsoon (TISM) are studied as well. It is found that the onset times of both the SCSSM and the TISM are highly dependent upon the latitudinal position of the SAH center.

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