globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1815725116
论文题名:
Multiradionuclide evidence for an extreme solar proton event around 2;610 B.P. (∼660 BC)
作者: O’Hare P.; Mekhaldi F.; Adolphi F.; Raisbeck G.; Aldahan A.; Anderberg E.; Beer J.; Christl M.; Fahrni S.; Synal H.-A.; Park J.; Possnert G.; Southon J.; Bard E.; Muscheler R.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2019
卷: 116, 期:13
起始页码: 5961
结束页码: 5966
语种: 英语
英文关键词: Ice cores ; Radionuclides ; Solar proton events ; Solar storms
Scopus关键词: beryllium 10 ; carbon 14 ; chlorine 36 ; multiradionuclide ; proton ; radioisotope ; unclassified drug ; Article ; chemical analysis ; chemical binding ; controlled study ; energy ; energy resource ; Greenland ; ice core record ; priority journal ; solar energy ; solar storm ; spectrum ; sun exposure ; synthesis ; weather
英文摘要: Recently, it has been confirmed that extreme solar proton events can lead to significantly increased atmospheric production rates of cosmogenic radionuclides. Evidence of such events is recorded in annually resolved natural archives, such as tree rings [carbon-14 ( 14 C)] and ice cores [beryllium-10 ( 10 Be), chlorine-36 ( 36 Cl)]. Here, we show evidence for an extreme solar event around 2,610 years B.P. (∼660 BC) based on high-resolution 10 Be data from two Greenland ice cores. Our conclusions are supported by modeled 14 C production rates for the same period. Using existing 36 Cl ice core data in conjunction with 10 Be, we further show that this solar event was characterized by a very hard energy spectrum. These results indicate that the 2,610-years B.P. event was an order of magnitude stronger than any solar event recorded during the instrumental period and comparable with the solar proton event of AD 774/ 775, the largest solar event known to date. The results illustrate the importance of multiple ice core radionuclide measurements for the reliable identification of short-term production rate increases and the assessment of their origins. © 2019 National Academy of Sciences. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163593
Appears in Collections:气候变化与战略

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作者单位: O’Hare, P., Department of Geology—Quaternary Sciences, Lund University, Lund, 22362, Sweden; Mekhaldi, F., Department of Geology—Quaternary Sciences, Lund University, Lund, 22362, Sweden; Adolphi, F., Department of Geology—Quaternary Sciences, Lund University, Lund, 22362, Sweden, Climate and Environmental Physics and Oeschger Centre for Climate Change Research, Physics Institute, University of Bern, Bern, 3012, Switzerland; Raisbeck, G., Centre de Sciences Nucléaires et de Sciences de la Matière, CNRS, Université Paris-Saclay, Orsay, 91405, France; Aldahan, A., Department of Geology, United Arab Emirates University, Al Ain, United Arab Emirates; Anderberg, E., Department of Geology—Quaternary Sciences, Lund University, Lund, 22362, Sweden; Beer, J., Department of Surface Waters, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, 8600, Switzerland; Christl, M., Laboratory of Ion Beam Physics, Swiss Federal Institute of Technology, Zurich, 8093, Switzerland; Fahrni, S., Laboratory of Ion Beam Physics, Swiss Federal Institute of Technology, Zurich, 8093, Switzerland; Synal, H.-A., Laboratory of Ion Beam Physics, Swiss Federal Institute of Technology, Zurich, 8093, Switzerland; Park, J., Korea Institute of Geoscience and Mineral Resources, Daejeon, 34132, South Korea; Possnert, G., Tandem Laboratory, Uppsala University, Uppsala, 751 20, Sweden; Southon, J., Keck/Accelerator Mass Spectrometry (AMS) Laboratory, University of California, Irvine, CA 92697-3100, United States; Bard, E., CNRS, Institut de Recherche pour le Développement (IRD), Institut National de la Recherche Agronomique, Coll France, UMR 34 Centre Européen de Recherche et d’Enseignement des Géosciences de l’Environnement (CEREGE), Aix-Marseille University, Aix-en-Provence, 13545, France; Muscheler, R., Department of Geology—Quaternary Sciences, Lund University, Lund, 22362, Sweden

Recommended Citation:
O’Hare P.,Mekhaldi F.,Adolphi F.,et al. Multiradionuclide evidence for an extreme solar proton event around 2;610 B.P. (∼660 BC)[J]. Proceedings of the National Academy of Sciences of the United States of America,2019-01-01,116(13)
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