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Interdecadal correlation of solar activity with Tibetan Plateau snow depth and winter atmospheric circulation in East Asia
Alternative TitleInterdecadal correlation of solar activity with Tibetan Plateau snow depth and winter atmospheric circulation in East Asia
Li Zhicai1; Song Yan2; Zhang Wei3; Zhang Jing4; Xiao Ziniu5
2016
Source Publication寒旱区科学:英文版
ISSN1674-3822
Volume8.0Issue:006Pages:524-535
AbstractStudies on the impact of solar activity on climate system are very important in understanding global climate change. Previous studies in this field were mostly focus on temperature, wind and geopotential height. In this paper, interdecadal correlations of solar activity with Winter Snow Depth Index (WSDI) over the Tibetan Plateau, Arctic Oscillation Index (AOI) and the East Asian Winter Monsoon Index (EAWMI) are detected respectively by using Solar Radio Flux (SRF), Total Solar Irradiance (TSI) and Solar Sunspot Number (SSN) data and statistical methods. Arctic Oscillation and East Asian winter monsoon are typical modes of the East Asian atmospheric circulation. Research results show that on inter-decadal time scale over 11-year solar cycle, the sun modulated changes of winter snow depth over the Tibetan Plateau and East Asian atmospheric circulation. At the fourth lag year, the correlation coefficient of SRF and snow depth is 0.8013 at 0.05 significance level by Monte-Carlo test method. Our study also shows that winter snow depth over the Tibetan Plateau has significant lead and lag correlations with Arctic Oscillation and the East Asian winter monsoon on long time scale. With more snow in winter, the phase of Arctic Oscillation is positive, and East Asian winter monsoon is weak, while with less snow, the parameters are reversed. An example is the winter of 2012/2013, with decreased Tibetan Plateau snow, phase of Arctic Oscillation was negative, and East Asian winter monsoon was strong.
Other AbstractStudies on the impact of solar activity on climate system are very important in understanding global climate change. Previous studies in this field were mostly focus on temperature, wind and geopotential height. In this paper, interdecadal correlations of solar activity with Winter Snow Depth Index (WSDI) over the Tibetan Plateau, Arctic Oscillation Index (AOI) and the East Asian Winter Monsoon Index (EAWMI) are detected respectively by using Solar Radio Flux (SRF), Total Solar Irradiance (TSI) and Solar Sunspot Number (SSN) data and statistical methods. Arctic Oscillation and East Asian winter monsoon are typical modes of the East Asian atmospheric circulation. Research results show that on inter-decadal time scale over 11-year solar cycle, the sun modulated changes of winter snow depth over the Tibetan Plateau and East Asian atmospheric circulation. At the fourth lag year, the correlation coefficient of SRF and snow depth is 0.8013 at 0.05 significance level by Monte-Carlo test method. Our study also shows that winter snow depth over the Tibetan Plateau has significant lead and lag correlations with Arctic Oscillation and the East Asian winter monsoon on long time scale. With more snow in winter, the phase of Arctic Oscillation is positive, and East Asian winter monsoon is weak, while with less snow, the parameters are reversed. An example is the winter of 2012/2013, with decreased Tibetan Plateau snow, phase of Arctic Oscillation was negative, and East Asian winter monsoon was strong.
Keyword东亚大气环流 太阳活动周期 东亚冬季风 积雪深度 西藏高原 年代际 北极涛动 全球气候变化
Indexed ByCSCD
Language中文
CSCD IDCSCD:5886550
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156342
Collection中国科学院金属研究所
Affiliation1.Shanxi Climate Centre
2.China Meteorological Administration Training Centre
3.FangShan District Meteorological Service
4.中国科学院金属研究所
5.中国科学院大气物理研究所
Recommended Citation
GB/T 7714
Li Zhicai,Song Yan,Zhang Wei,et al. Interdecadal correlation of solar activity with Tibetan Plateau snow depth and winter atmospheric circulation in East Asia[J]. 寒旱区科学:英文版,2016,8.0(006):524-535.
APA Li Zhicai,Song Yan,Zhang Wei,Zhang Jing,&Xiao Ziniu.(2016).Interdecadal correlation of solar activity with Tibetan Plateau snow depth and winter atmospheric circulation in East Asia.寒旱区科学:英文版,8.0(006),524-535.
MLA Li Zhicai,et al."Interdecadal correlation of solar activity with Tibetan Plateau snow depth and winter atmospheric circulation in East Asia".寒旱区科学:英文版 8.0.006(2016):524-535.
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