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Studies on the Northern Early Summer Teleconnection Patterns, Their Interannual Variations and Relation to Drought / Flood in China


doi: 10.1007/BF02919138

  • By using the one-point correlation method, calculations have been made of the northern early summer 500 hPa teleconnection patterns. Seven teleconnection patterns are revealed, namely, the Western Atlantic (WA), the Eastern Atlantic (EA), the Eurasian (EU), the Bengal / Northern Pacific (BNP), the Western Pacific (WP), the East Asian / Pacific (EAP), and the Huanghe / East Asian (HEA) patterns. Their centers are determined and their yearly intensity indices (1951-1990) are calculated. On this basis the relationship between their interannual variations and the drought / flood in China is examined. It is noted that the EU, HEA and EAP wave trains are closely related to the drought/ flood in China. The HEA and EAP patterns strongly influence the precipitation in eastern China. For ex-ample, the fierce floods experienced in 1991 early summer over China are related to the weak EAP and strong HEA patterns.
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    [2] YANG Hui, LI Chongyin, 2003: The Relation between Atmospheric Intraseasonal Oscillation and Summer Severe Flood and Drought in the Changjiang-Huaihe River Basin, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 540-553.  doi: 10.1007/BF02915497
    [3] Zhuoyuan LI, Qing YANG, Dian YUAN, Er LU, Zhuguo MA, 2023: Causes of a Typical Southern Flood and Northern Drought Event in 2015 over Eastern China, ADVANCES IN ATMOSPHERIC SCIENCES, 40, 2092-2107.  doi: 10.1007/s00376-023-2342-0
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    [8] Zhou Jiabin, Wang Yunkuan, Yang Guiying, Wu Jinsheng, 1994: A Forecasting Model of Vector Similarity in Phase Space for Flood and Drought over the Huanghe-Huaihe-Haihe Plain in China, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 224-229.  doi: 10.1007/BF02666548
    [9] Chen Lieting, Wu Renguang, 2000: Interannual and Decadal Variations of Snow Cover over Qinghai-Xizang Plateau and Their Relationships to Summer Monsoon Rainfall in China, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 18-30.  doi: 10.1007/s00376-000-0040-7
    [10] Claudia Christine STEPHAN, Yan Ho NG, Nicholas P. KLINGAMAN, 2018: On Northern Hemisphere Wave Patterns Associated with Winter Rainfall Events in China, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 1021-1034.  doi: 10.1007/s00376-018-7267-7
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Manuscript History

Manuscript received: 10 March 1993
Manuscript revised: 10 March 1993
通讯作者: 陈斌, bchen63@163.com
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Studies on the Northern Early Summer Teleconnection Patterns, Their Interannual Variations and Relation to Drought / Flood in China

  • 1. Nanjing Institute of Meteorology, Nanjing 210008,Nanjing Institute of Meteorology, Nanjing 210008

Abstract: By using the one-point correlation method, calculations have been made of the northern early summer 500 hPa teleconnection patterns. Seven teleconnection patterns are revealed, namely, the Western Atlantic (WA), the Eastern Atlantic (EA), the Eurasian (EU), the Bengal / Northern Pacific (BNP), the Western Pacific (WP), the East Asian / Pacific (EAP), and the Huanghe / East Asian (HEA) patterns. Their centers are determined and their yearly intensity indices (1951-1990) are calculated. On this basis the relationship between their interannual variations and the drought / flood in China is examined. It is noted that the EU, HEA and EAP wave trains are closely related to the drought/ flood in China. The HEA and EAP patterns strongly influence the precipitation in eastern China. For ex-ample, the fierce floods experienced in 1991 early summer over China are related to the weak EAP and strong HEA patterns.

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