Correlation between solar activity and the local temperature of Antarctica during the past 11,000 years
Correlation between solar activity and the local temperature of Antarctica during the past 11,000 years
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DOI：
10.1016/j.jastp.2014.11.004
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发表时间：
2015
影响因子：
1.9
通讯作者：
Xinhua Zhao;Xueshang Feng
中科院分区：
文献类型：
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作者：
Xinhua Zhao;Xueshang Feng
太阳对地球气候变化的影响是一个长期的话题，有着激烈的争论。利用重建的太阳黑子数（SSN）、东方温度（T）和康科迪亚冰穹（DomeConcordia）的大气CO2浓度资料，研究了1895年以前11,000年间南极内陆地区太阳活动、大气CO2和温度的周期性及其相关性。我们发现SSN和T的变化有一些共同的周期性，例如208年、521年和~1000年的周期。在某些间歇性周期中，SSN和T之间的相关性很强。然而，子波分析表明，它们之间的相对相位关系通常不保持稳定，除了千年周期的分量。SSN的千年变化超前T的30-40年，它们之间的反相位关系在过去的整个11,000年中几乎保持稳定。相反，CO2与T之间的相关性既不强也不稳定。这些结果表明，在现代工业出现之前的11,000年里，太阳活动可能对东方局部气候的长期变化有潜在的影响。
The solar impact on the Earth's climate change is a long topic with intense debates. Based on the reconstructed data of solar sunspot number (SSN), the local temperature in Vostok (T), and the atmospheric CO2concentration data of Dome Concordia, we investigate the periodicities of solar activity, the atmospheric CO2and local temperature in the inland Antarctica as well as their correlations during the past 11,000 years before AD 1895. We find that the variations of SSN andThave some common periodicities, such as the 208 year (yr), 521 yr, and ~1000 yr cycles. The correlations between SSN andTare strong for some intermittent periodicities. However, the wavelet analysis demonstrates that the relative phase relations between them usually do not hold stable except for the millennium-cycle component. The millennial variation of SSN leads that ofTby 30–40 years, and the anti-phase relation between them keeps stable nearly over the whole 11,000 years of the past. As a contrast, the correlations between CO2andTare neither strong nor stable. These results indicate that solar activity might have potential influences on the long-term change of Vostok's local climate during the past 11,000 years before modern industry.