Geomagnetic activity impact on the results of the induction vector calculations

Induction vector has temporal variations caused by changes of geomagnetic activity when the average amplitude of the MT-field is comparable to noise amplitude. Frequency characteristics of these temporal variations are studied for several Japanese observatories. Temporal variations cover a range fr...

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Bibliographic Details
Published in:Геофизический журнал
Main Authors: I. Rokityansky, V. Babak, A. Tereshin
Format: Article
Language:English
Published: Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine 2015-12-01
Subjects:
electromagnetic response functions
induction vectors
electrical conductivity of the lithosphere
geomagnetic activity
magnetotelluric field
Online Access:https://journals.uran.ua/geofizicheskiy/article/view/111173
Description
Summary:Induction vector has temporal variations caused by changes of geomagnetic activity when the average amplitude of the MT-field is comparable to noise amplitude. Frequency characteristics of these temporal variations are studied for several Japanese observatories. Temporal variations cover a range from units to 1,000 and more seconds on observatories situated close to railways, powered by direct current. In other cases, these variations appear on shorter periods.
ISSN:0203-3100
2524-1052

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