The diurnal variation of sizes of sudden commencements and impulses in the Kodaikanal magneto grams

Authors

  • B. SRINIVASAMURTHY

DOI:

https://doi.org/10.54302/mausam.v11i1.4098

Abstract

Combined data of sudden commencements (SCs) and sudden impulses (SIs) recorded at Kodaikanal (geomagnetic latitude 0.6°N) during the period 1949-57 have been analysed in order to study the relationship between the diurnal variation (DV) in the amplitudes of the impulses and the DV in the horizontal component of the earth's magnetic field (the sq variations in H). There is a statistically significant daytime enhancement in SC sizes similar to the enhancement in Sq variation. Furthermore, this enhancement is larger on: days with larger Sq variation than on days with smaller Sq variation. These results confirm those obtained by Forbush and Vestine (1955) at Huancayo, another station near the geomagnetic equator.

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Published

01-01-1960

How to Cite

[1]
B. . SRINIVASAMURTHY, “The diurnal variation of sizes of sudden commencements and impulses in the Kodaikanal magneto grams”, MAUSAM, vol. 11, no. 1, pp. 64–68, Jan. 1960.

Issue

Vol. 11 No. 1 (1960): MAUSAM

Section

Shorter Contribution

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