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...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2021-08-01
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Series: | Geosciences |
Subjects: | |
Online Access: | https://www.mdpi.com/2076-3263/11/8/351 |