Are daily sunspot births correlated? | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS


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  Are daily sunspot births correlated?

Friday 25 March 2016
Séminaires communs Géomagnétisme-Paléomagnétisme
Alexandre Shapoval
(Institute of Earthquake Prediction Theory and Higher School of Economics, Moscow)

I am going to present a joint work with professors Jean-Louis Le Mouël (IPGP), Vincent Courtillot (IPGP), and Mikhail Shnirman (IEPT). On the seminar, we will discuss the evolution of quantities (f.e., spectrum and correlation) that explore solar activity on day-to-year scales. We will see that on available intervals of daily data of solar proxies, some of these quantities undergo regime changes prior to a general reconstruction of solar activity. Furthermore, I'll give indirect evidence that sunspot births were positively correlated during the last epoch of high solar activity.