Scale Transfer in 1849: Heinrich Schwabe to Rudolf Wolf
Scale Transfer in 1849: Heinrich Schwabe to Rudolf Wolf
复制标题
1849 年规模转移:Heinrich Schwabe 到 Rudolf Wolf
DOI:
10.1007/s11207-022-02103-4
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发表时间:
2023
期刊:
影响因子:
2.8
通讯作者:
Clette F.
中科院分区:
文献类型:
--
作者:
Bhattacharya S.;Lefevre L.;Hayakawa H.;Jansen M.;Clette F.
The focus of this study is to reveal the reason behind a scale problem detected around 1849 in the historical version of the International Sunspot Number Series, i.e. version 1 (Leussu et al. inAstron. Astrophys.559, A28, ; Friedli inSolar Phys.291, 2505, ). From 1826 to 1848 Heinrich Schwabe’s observations were considered primary by Rudolf Wolf, and a shift of primary observer from Schwabe to Wolf in 1849 seems to have led to an inconsistency in the Sunspot Number series. In this study we benefited from various datasets, the most important being Schwabe’s raw counts from theMittheilungen(Prof. Wolf’s Journals) that have been digitised at the Royal Observatory of Belgium between 2017 and 2019. We provide a robust quantification of the detected problem by using classic algebraic calculations, but also different methods such as a method inspired by Lockwood et al. (J. Geophys. Res.119(7), 5172, ), hence assigning a modern k-factor to Schwabe’s observations before 1849. We also assess the implications of this 1849 inconsistency on the International Sunspot Number series (Versions 1 and 2) before and after 1849.
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DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
R. Wolf
通讯作者:
R. Wolf
影响因子:
2.8
作者:
T. Friedli
通讯作者:
T. Friedli
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
M. Lockwood;M. Owens;L. Barnard
通讯作者:
L. Barnard
影响因子:
2.8
作者:
S. Bhattacharya;E. Teague;S. Fay;L. Lefèvre;M. Jansen;F. Clette
通讯作者:
F. Clette
影响因子:
2.8
作者:
I. Usoskin;G. Kovaltsov;Wilma Kiviaho
通讯作者:
Wilma Kiviaho