Letter | Published:

A Suggested Explanation of Sangster‘s Rotations and Schmidt‘s "Wandering Vortices" in Geomagnetism

Nature volume 162, pages 110111 (17 July 1948) | Download Citation

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Abstract

A CURIOUS and hitherto unexplained phenomenon was discovered many years ago by Sangster1 from a study of Greenwich magnetograms for periods of magnetic disturbance. He showed that the horizontal component of the disturbance vector at Greenwich rotates for considerable periods in the same direction, so that its end describes a sequence of loops, which vary greatly in size and shape but are all described in the same sense, when viewed, say, from above. From 10h. to 24h. almost all the rotations are anticlockwise, while from 0h. to 10h. they are mostly clockwise.

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References

  1. 1.

    Proc. Roy. Soc., A, 84, 85 (1910).

  2. 2.

    Met. Z., 16, 385 (1899); see also and , "Geomagnetism", 311.

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Affiliations

  1. Imperial College of Science and Technology, London, S.W.7. March 23.

    • A. T. PRICE

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DOI

https://doi.org/10.1038/162110a0

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