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Title: Solar Activity Effects on Cosmic Ray Intensity & Geomagnetic Field Variation
Authors: Shukla, A K
Shukla, J P
Sharma, S M
Singh, R L
Agrawal, S P
Issue Date: Aug-1978
Publisher: NISCAIR-CSIR, India
Abstract: An analysis has been performed to statistically correlate the date of solar flare occurrence and its importance with the short term cosmic ray intensity decreases (observed by the high latitude neutron monitors) as well as with the geomagnetic field fluctuation indices (AD and Dst), during the period 1973-76. This period has the particular advantage of being close to a solar minimum to avoid the ambiguity due to closely spaced solar flares. It is found that the intensity decrease starts at lease 2-3 days after the date of bright solar flares if Imp 1B, 2B or 3B and the amplitude of the decrease increases with the importance of the solar flare.
Page(s): 179-181
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.07(4) [August 1978]

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