Russian geomagnetic recordings in 1850–1862 compared to modern observations

We analyse geomagnetic recordings at four subauroral and midlatitude Russian observatories in 1850–1862. The data consist of spot readings made once in hour of the north and east components of the magnetic field. We use the hourly change of the horizontal field vector as the measure of activity. We...

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Bibliographic Details
Main Authors: Viljanen Ari, Myllys Minna, Nevanlinna Heikki
Format: Article
Language:English
Published: EDP Sciences 2014-01-01
Series:Journal of Space Weather and Space Climate
Subjects:
Online Access:https://www.swsc-journal.org/articles/swsc/full_html/2014/01/swsc130058/swsc130058.html