Physics
Scientific paper
Jun 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.4836v&link_type=abstract
Journal of Geophysical Research, vol. 86, June 1, 1981, p. 4836-4838. Natural Sciences and Engineering Research Council
Physics
2
Cosmic Rays, Isotropy, Periodic Variations, Radiant Flux Density, Solar Activity Effects, Amplitude Modulation, Geomagnetism, Polar Regions, Sunspots
Scientific paper
A study of the cosmic ray intensity data from high-latitude stations reveals an isotropic variation of approximately 30-day periodicity and a peak-to-peak amplitude of 10% during the two months August-September 1979. Such an unusual modulation of cosmic ray intensity has not been observed before. It is clear that the variation is worldwide and in view of no significant north-south asymmetry, we have to visualize the modulation region responsible for the effect to be extremely large. The rigidity spectra of the variation is found to be similar to that of Forbush decreases. The results are discussed in terms of solar activity. No obvious physical mechanism is readily seen, to account for this intensity variation.
Agrawal S. P.
Venkatesan D.
Volk Kathryn
No associations
LandOfFree
Observation of pronounced isotropic variations of cosmic ray intensity during August-September 1979 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of pronounced isotropic variations of cosmic ray intensity during August-September 1979, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of pronounced isotropic variations of cosmic ray intensity during August-September 1979 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-994422