Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/4555
Title: Geomagnetic activity and the sunspot cycle
Authors: Ananthakrishnan, R
Keywords: Geomagnetic Activity
Sunspot Cycle
Issue Date: Nov-1953
Publisher: Nature Publishing Group
Citation: Nature, Vol. 172, No. 4384, pp. 854 – 855
Abstract: It is well known that the daily international magnetic character figure Ci constitutes a valuable index for classifying days according to their magnetic activity averaged over a large part of the earth. As a measure of the intensity of geomagnetic disturbance, Ci is in fact comparable to the Zurich relative sunspot number S, which is a recognized measure of solar activity. Daily Ci values are available in an unbroken sequence from 1884 onwards.
Description: Restricted Access
URI: http://hdl.handle.net/2248/4555
ISSN: 0028-0836
Appears in Collections:IIAP Publications

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