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Title: Equatorial Effects on Nighttime Pc3 Pulsations
Authors: Sarma, Y S
Sastry, T S
Sarma, S V S
Issue Date: Feb-1982
Publisher: NISCAIR-CSIR, India
Abstract: Nighttime Pc3 pulsations observed simultaneously during 1976-79 at Choutuppal (geomag. lat., 7°.5), an inland non-electrojet station and at Etaiyapuram (geomag. lat., 0°.6), a station near the dip equator, have revealed an enhancement of the meridional component at the dip equator. The enhancement factor of these nighttime signals shows a local time variation reaching a maximum value of about 2.0 around midnight. It is also noticed that, while the nighttime occurrences of Pc3s increased with increase in solar activity, the percentage of nighttime enhancement showed an inverse relation. The results are examined in the light of a possible mechanism for nighttime enhancement of SCs, Sls, etc. at the dip equator.
Page(s): 29-32
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.11(1) [February 1982]

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