697 citations · 1.2k across the 14 of their papers we have counts for
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Hemispheric sunspot numbers 1874--2020
Astrid M. Veronig, Shantanu Jain, Tatiana Podladchikova +2
We create a continuous series of daily and monthly hemispheric sunspot numbers (HSNs) from 1874 to 2020, which will be continuously expanded in the future with the HSNs provided by…
Nonparametric monitoring of sunspot number observations: a case study
Sophie Mathieu, Laure Lefèvre, Rainer von Sachs +3
Solar activity is an important driver of long-term climate trends and must be accounted for in climate models. Unfortunately, direct measurements of this quantity over long periods…
A modern reconstruction of Carrington's observations (1853-1861)
Shreya Bhattacharya, E. T. H Teague, S. Fay +3
The focus of this article is a re-count of Richard Carrington's original sunspot observations from his book drawings (Carrington,1863) by an observer from the World data Center-SIL…