Time derivative of the horizontal geomagnetic field as an activity indicator

Geomagnetically induced currents (GICs) in technological conductor systems are a manifestation of the ground effects of space weather. Large GICs are always associated with large values of the time derivative of the geomagnetic field, and especially with its horizontal component (<i>d&...

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Bibliographic Details
Main Authors: A. Viljanen, H. Nevanlinna, K. Pajunpää, A. Pulkkinen
Format: Article
Language:English
Published: Copernicus Publications 2001-09-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/19/1107/2001/angeo-19-1107-2001.pdf