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Title: Occurrence of M & N Echoes at the Equatorial Station, Kodaikanal
Authors: Sastri, J. Hanumath
Murthy, B. Suryanarayana
Issue Date: Mar-1975
Publisher: NISCAIR-CSIR, India
Abstract: In quarter-hourly ionograms of Kodaikanal, close to the magnetic dip equator, for the period January December 1968, M and N echoes occur in association with the Es configuration characteristic of the equatorial zone. Also one notices either an isolated M echo or a combination of M and N echoes but rarely an isolated N echo. The M and N echoes together occur mostly with blanketing Es and are basically a post-noon event whereas the M echo occurs usually with equatonal Es and is a pre-noon event with a characteristic seasonal variation.
Page(s): 10-14
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.04(1) [March 1975]

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