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Hermanus Magnetic Observatory, January to June, 1941
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January 1—The period from 12h to 18h GMT was moderately disturbed.January 5–9—A storm began with a small commencement at 15h 45m GMT, January 5, with an increase of 11 gammas in H in four minutes. The storm continued until 0lh, January 7. There were further disturbances on January 7 in the period from 15h to 21h and on January 9 from 12h to 15h. The ranges of H we re of the order of 70 gammas.
Title: Hermanus Magnetic Observatory, January to June, 1941
Description:
January 1—The period from 12h to 18h GMT was moderately disturbed.
January 5–9—A storm began with a small commencement at 15h 45m GMT, January 5, with an increase of 11 gammas in H in four minutes.
The storm continued until 0lh, January 7.
There were further disturbances on January 7 in the period from 15h to 21h and on January 9 from 12h to 15h.
The ranges of H we re of the order of 70 gammas.
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