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タイトル: | Records of sunspot and aurora during CE 960–1279 in the Chinese chronicle of the Sòng dynasty |
著者: | Hayakawa, Hisashi Tamazawa, Harufumi Kawamura, Akito Davis Isobe, Hiroaki |
著者名の別形: | 早川, 尚志 |
キーワード: | Aurora Sunspot Solar activity Chinese chronicle Historical resource |
発行日: | 29-May-2015 |
出版者: | SpringerOpen |
誌名: | Earth, Planets and Space |
巻: | 67 |
論文番号: | 82 |
抄録: | Records of sunspot and aurora observations in pre-telescopic historical documents can provide useful information about solar activity in the past. This is also true for extreme space weather events, as they may have been recorded as large sunspots observed by the naked eye or as low-latitude auroras. In this paper, we present the results of a comprehensive survey of records of sunspots and auroras in the Sòngshǐ, a Chinese formal chronicle spanning the tenth to the thirteenth century. This chronicle contains a record of continuous observations with well-formatted reports conducted as a policy of the government. A brief comparison of the frequency of observations of sunspots and auroras and the observations of radioisotopes as an indicator of the solar activity during corresponding periods is provided. This paper is the first step of our project in which we survey and compile the records of sunspots and auroras in historical documents from various locations and languages, ultimately providing it to the science community as online data. |
著作権等: | © 2015 Hayakawa et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
URI: | http://hdl.handle.net/2433/201512 |
DOI(出版社版): | 10.1186/s40623-015-0250-y |
出現コレクション: | 学術雑誌掲載論文等 |
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