Observed Auroral Ovals Secular Variation Inferred from Auroral Boundary Data

We analyze the auroral boundary corrected geomagnetic latitude provided by the Auroral Boundary Index (ABI) database to estimate long-term changes of core origin in the area enclosed by this boundary during 1983–2016. We design a four-step filtering process to minimize the solar contribution to the...

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Bibliographic Details
Main Authors: Bruno Zossi, Hagay Amit, Mariano Fagre, Ana G. Elias
Format: Article
Language:English
Published: MDPI AG 2021-08-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/11/8/351