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  4. 中国科学院地球与行星物理重点实验室
Equatorial auroral records reveal dynamics of the paleo-West Pacific geomagnetic anomaly

文献类型：期刊论文

作者He, Fei1,2; Wei, Yong1,2; Maffei, Stefano4; Livermore, Philip W.4; Davies, Christopher J.4; Mound, Jon4; Xu, Kaihua1,2; Cai, Shuhui3; Zhu, Rixiang3
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2021-05-18
卷号118期号:20页码:9
ISSN号0027-8424
关键词geomagnetic anomaly& nbsp ancient aurora | core dynamics & nbsp geomagnetic secular variation
DOI10.1073/pnas.2026080118
英文摘要Localized regions of low geomagnetic intensity such as the South Atlantic Anomaly allow energetic particles from the Van Allen radiation belt to precipitate into the atmosphere and have been linked to a signature in the form of red aurora & ndash;like airglow visible to the naked eye. Smoothed global geomagnetic models predict a lowintensity West Pacific Anomaly (WPA) during the sixteenth to nineteenth centuries characterized by a simple time dependence. Here, we link the WPA to an independent database of equatorial aurorae recorded in Seoul, South Korea. These records show a complex fluctuating behavior in auroral frequency, whose overall trend from 1500 to 1800 AD is consistent with the locally weak geomagnetic field of the WPA, with a minimum at 1650 AD. We propose that the fluctuations in auroral frequency are caused by corresponding and hitherto unknown fluctuations in the regional magnetic intensity with peaks at 1590 and 1720 AD, a time dependence that has been masked by the smoothing inherent in regularized global geomagnetic models. A physical core flow model demonstrates that such behavior requires localized time-dependent upwelling flows in the Earth & rsquo;s core, possibly driven by regional lower-mantle anomalies.
WOS关键词HISTORICAL RECORDS ; MAGNETIC-FIELD ; CORE-MANTLE ; 4 CENTURIES ; AIRGLOW ; SUNSPOT ; FLUX ; STRATIFICATION ; TOP
资助项目Strategic Priority Research Program of Chinese Academy of Sciences (CAS)[XDA17010201] ; National Science Foundation of China[41621004] ; Key Research Program of the Institute of Geology and Geophysics, CAS[IGGCAS-201904] ; Youth Innovation Promotion Association of CAS[2017258] ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems[NE/P016758/1] ; Natural Environment Research Council of the United Kingdom[NE/L011328/1]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000656222200019
资助机构Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; Strategic Priority Research Program of Chinese Academy of Sciences (CAS) ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Key Research Program of the Institute of Geology and Geophysics, CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council strategic highlight topic Space Weather Impacts on Ground-based Systems ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom ; Natural Environment Research Council of the United Kingdom
源URL[http://ir.iggcas.ac.cn/handle/132A11/102010]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wei, Yong; Maffei, Stefano
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England
推荐引用方式
GB/T 7714		 He, Fei,Wei, Yong,Maffei, Stefano,et al. Equatorial auroral records reveal dynamics of the paleo-West Pacific geomagnetic anomaly[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(20):9.
APA He, Fei.,Wei, Yong.,Maffei, Stefano.,Livermore, Philip W..,Davies, Christopher J..,...&Zhu, Rixiang.(2021).Equatorial auroral records reveal dynamics of the paleo-West Pacific geomagnetic anomaly.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(20),9.
MLA He, Fei,et al."Equatorial auroral records reveal dynamics of the paleo-West Pacific geomagnetic anomaly".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.20(2021):9.

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