Chinese Sunspot Drawings and Their Digitization - (I) Parameter Archives
Lin, G. H.1,2; Wang, X. F.1,2; Liu, S.1,2; Yang, X.1,2; Zhu, G. F.1,2; Deng, Y. Y.1,2; Ji, H. S.3; Zhou, T. H.3; Sun, L. N.4; Feng, Y. L.5; Liu, Z. Z.5; Tao, J. P.5; Ben, M. X.5; Lin, J.5; Ding, M. D.6,7; Li, Z.6,7; Zheng, S.8; Zeng, S. G.8; He, H. L.8; Zeng, X. Y.8; Shu, Y.8; Sun, X. B.8
Source PublicationSOLAR PHYSICS

Based on the Chinese historical sunspots drawings, a data set consisting of the scanned images and all their digitized parameters from 1925 to 2015 have been constructed. In this paper, we briefly describe the developmental history of sunspots drawings in China. This paper describes the preliminary handling processes that start from the initial scanning to the extraction of parameters, and finally summarizes the general features of this data set. It is the first systematic project in the Chinese solar-physics community to digitize the historical series of sunspot drawings. Our data set fills in an almost 90-year historical gap, which originates from an area spanning 60 degrees from east to west and 50 degrees from north to south and has no continuous and detailed digital sunspot observation information. Being complementary to other sunspot observations in the world, our data set provides abundant information to the long-term solar activity cycles research.

KeywordSunspot Solar cycle Sunspot drawings Digitalization Physicalparameters Big data
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000472232600001
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Document Type期刊论文
Corresponding AuthorLiu, S.
Affiliation1.Key Lab Solar Act, Datun Rd 20A, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Datun Rd 20A, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, 2 Beijing Xi Rd, Nanjing 210008, Jiangsu, Peoples R China
4.Chinese Acad Sci, Purple Mt Observ, Qingdao Observ, Guanxiang Rd 2, Qingdao 266003, Shandong, Peoples R China
5.Chinese Acad Sci, Yunnan Astron Observ, 396 Yanfangwang, Kunming 650216, Yunnan, Peoples R China
6.Nanjing Univ, Sch Astron & Space Sci, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China
7.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210023, Jiangsu, Peoples R China
8.China Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China
Recommended Citation
GB/T 7714
Lin, G. H.,Wang, X. F.,Liu, S.,et al. Chinese Sunspot Drawings and Their Digitization - (I) Parameter Archives[J]. SOLAR PHYSICS,2019,294(6):22.
APA Lin, G. H..,Wang, X. F..,Liu, S..,Yang, X..,Zhu, G. F..,...&Sun, X. B..(2019).Chinese Sunspot Drawings and Their Digitization - (I) Parameter Archives.SOLAR PHYSICS,294(6),22.
MLA Lin, G. H.,et al."Chinese Sunspot Drawings and Their Digitization - (I) Parameter Archives".SOLAR PHYSICS 294.6(2019):22.
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