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The solar causes of geomagnetic disturbances

✍ Scribed by V. P. Mikhailutsa; M. N. Gnevyshev

Publisher
Springer
Year
1985
Tongue
English
Weight
618 KB
Volume
98
Category
Article
ISSN
0038-0938

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✦ Synopsis

Geomagnetic disturbances have been identified with respect to their sources for 1977-1983. The disturbance level was found using the daily planetary index Ap. High-amplitude (~ 50), mean-amplitude (~ 24) and low-amplitude ( ~ 12) disturbances are caused by solar flares of importance >_ 1, coronal holes, and filament cavities, respectively. The ranges of probable amplitudes of disturbances of different nature and their relative number are found from Poisson random distributions of amplitudes.

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