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On the Association between Spring Arctic Sea Ice Concentration and Chinese Summer Rainfall: A Further Study


doi: 10.1007/s00376-009-9009-3

  • In our previous study, a statistical linkage between the spring Arctic sea ice concentration (SIC) and the succeeding Chinese summer rainfall during the period 1968--2005 was identified. This linkage is demonstrated by the leading singular value decomposition (SVD) that accounts for 19% of the co-variance. Both spring SIC and Chinese summer rainfall exhibit a coherent interannual variability and two apparent interdecadal variations that occurred in the late 1970s and the early 1990s. The combined impacts of both spring Arctic SIC and Eurasian snow cover on the summer Eurasian wave train may explain their statistical linkage. In this study, we show that evolution of atmospheric circulation anomalies from spring to summer, to a great extent, may explain the spatial distribution of spring and summer Arctic SIC anomalies, and is dynamically consistent with Chinese summer rainfall anomalies in recent decades. The association between spring Arctic SIC and Chinese summer rainfall on interannual time scales is more important relative to interdecadal time scales. The summer Arctic dipole anomaly may serve as the bridge linking the spring Arctic SIC and Chinese summer rainfall, and their coherent interdecadal variations may reflect the feedback of spring SIC variability on the atmosphere. The summer Arctic dipole anomaly shows a closer relationship with the Chinese summer rainfall relative to the Arctic Oscillation.
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    [2] XUE Feng, GUO Pinwen, YU Zhihao, 2003: Influence of Interannual Variability of Antarctic Sea-Ice on Summer Rainfall in Eastern China, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 97-102.  doi: 10.1007/BF03342053
    [3] Kaiming HU, Yingxue LIU, Gang HUANG, Zhuoqi HE, Shang-Min LONG, 2020: Contributions to the Interannual Summer Rainfall Variability in the Mountainous Area of Central China and Their Decadal Changes, ADVANCES IN ATMOSPHERIC SCIENCES, 37, 259-268.  doi: 10.1007/s00376-019-9099-5
    [4] LI Chun, MA Hao, 2011: Coupled Modes of Rainfall over China and the Pacific Sea Surface Temperature in Boreal Summertime, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1201-1214.  doi: 10.1007/s00376-011-0127-3
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    [6] YE Hong, LU Riyu, 2012: Dominant Patterns of Summer Rainfall Anomalies in East China during 1951--2006, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 695-704.  doi: 10.1007/s00376-012-1153-5
    [7] Zhongda LIN, Yuanhai FU, Riyu LU, 2019: Intermodel Diversity in the Zonal Location of the Climatological East Asian Westerly Jet Core in Summer and Association with Rainfall over East Asia in CMIP5 Models, ADVANCES IN ATMOSPHERIC SCIENCES, 36, 614-622.  doi: 10.1007/s00376-019-8221-z
    [8] JIAN Maoqiu, QIAO Yunting, YUAN Zhuojian, LUO Huibang, 2006: The Impact of Atmospheric Heat Sources over the Eastern Tibetan Plateau and the Tropical Western Pacific on the Summer Rainfall over the Yangtze-River Basin, ADVANCES IN ATMOSPHERIC SCIENCES, 23, 149-155.  doi: 10.1007/s00376-006-0015-4
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    [10] LANG Xianmei, ZHENG Fei, 2011: A Statistical-Dynamical Scheme for the Extraseasonal Prediction of Summer Rainfall for 160 Observation Stations across China, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 1291-1300.  doi: 10.1007/s00376-011-0177-6
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Manuscript History

Manuscript received: 10 July 2009
Manuscript revised: 10 July 2009
通讯作者: 陈斌, bchen63@163.com
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On the Association between Spring Arctic Sea Ice Concentration and Chinese Summer Rainfall: A Further Study

  • 1. Chinese Academy of Meteorological Sciences, Beijing 100081,Chinese Academy of Meteorological Sciences, Beijing 100081,Department of Meteorology and International Pacific Research Center, University of Hawaii at Manoa, Honolulu, Hawaii

Abstract: In our previous study, a statistical linkage between the spring Arctic sea ice concentration (SIC) and the succeeding Chinese summer rainfall during the period 1968--2005 was identified. This linkage is demonstrated by the leading singular value decomposition (SVD) that accounts for 19% of the co-variance. Both spring SIC and Chinese summer rainfall exhibit a coherent interannual variability and two apparent interdecadal variations that occurred in the late 1970s and the early 1990s. The combined impacts of both spring Arctic SIC and Eurasian snow cover on the summer Eurasian wave train may explain their statistical linkage. In this study, we show that evolution of atmospheric circulation anomalies from spring to summer, to a great extent, may explain the spatial distribution of spring and summer Arctic SIC anomalies, and is dynamically consistent with Chinese summer rainfall anomalies in recent decades. The association between spring Arctic SIC and Chinese summer rainfall on interannual time scales is more important relative to interdecadal time scales. The summer Arctic dipole anomaly may serve as the bridge linking the spring Arctic SIC and Chinese summer rainfall, and their coherent interdecadal variations may reflect the feedback of spring SIC variability on the atmosphere. The summer Arctic dipole anomaly shows a closer relationship with the Chinese summer rainfall relative to the Arctic Oscillation.

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