Anomalous cosmic ray intensity variations in the inner and outer heliosphere during the solar cycle 22 recovery phase (1991–1999)

2003 ◽  
Vol 108 (A10) ◽  
Author(s):  
M. E. Hill
Keyword(s):  
Solar Cycle ◽  
Cosmic Ray ◽  
Recovery Phase ◽  
Outer Heliosphere ◽  
Cosmic Ray Intensity

The galactic cosmic ray intensity minimum in the inner and outer heliosphere in solar cycle 21

1985 ◽  
Vol 90 (A3) ◽  
pp. 2905 ◽  
Author(s):  
D. Venkatesan ◽  
R. B. Decker ◽  
S. M. Krimigis ◽  
J. A. Van Allen
Keyword(s):  
Solar Cycle ◽  
Cosmic Ray ◽  
Outer Heliosphere ◽  
Cosmic Ray Intensity ◽  
Galactic Cosmic Ray

Solar-cycle phenomena in cosmic-ray intensity: Differences between even and odd cycles

1988 ◽  
Vol 42 (3) ◽  
pp. 233-244 ◽  
Author(s):  
H. Mavromichalaki ◽  
E. Marmatsouri ◽  
A. Vassilaki
Keyword(s):  
Solar Cycle ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity ◽  
Odd Cycles

Characteristics of Forbush-type Cosmic Ray Intensity Decreases Observed During Solar Cycle 21

1984 ◽  
Vol 5 (4) ◽  
pp. 590-593 ◽  
Author(s):  
A. G. Fenton ◽  
K. B. Fenton ◽  
J. E. Humble
Keyword(s):  
Solar Cycle ◽  
Physical Process ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity ◽  
Precise Nature

Although transient decreases in cosmic ray intensity of the type first reported by Forbush (1937) have been observed and studied for more than 40 years using a variety of detectors at many locations, from medium depths underground to those on spacecraft far from Earth, the precise nature of the physical process causing these events is not yet clear (see, for example, McKibben 1981).

scholarly journals Galactic Cosmic Ray Modulation Up to Recent Solar Cycles

2011 ◽  
Vol 48 (4) ◽  
pp. 66-70
Author(s):  
R. Agarwal ◽  
R. Mishra
Keyword(s):  
Solar Cycle ◽  
Solar Radio ◽  
Cosmic Ray ◽  
Radio Flux ◽  
Solar Cycles ◽  
Cosmic Ray Intensity ◽  
Cosmic Ray Modulation ◽  
Solar Radio Flux ◽  
Yearly Average ◽  
Galactic Cosmic Ray

Galactic Cosmic Ray Modulation Up to Recent Solar Cycles Cosmic ray neutron monitor counts obtained by different ground-based detectors have been used to study the galactic cosmic ray modulation during the last four solar activity cycles. Since long, systematic correlative studies have been per-formed to establish a significant relationship between the cosmic ray intensity and different helio-spheric activity parameters, and the study is extended to a recent solar cycle (23). In the present work, the yearly average of 10.7 cm solar radio flux and the interplanetary magnetic field strength (IMF, B) have been used to find correlation of the yearly average cosmic ray intensity derived from different neutron monitors. It is found that for four solar cycles (20-23) the cosmic ray intensity is anti-correlated with the 10.7 cm solar radio flux and the IMF, B value with some discrepancy. However, this is in a good positive correlation with the flux of mentioned wavelength for four different solar cycles. The IMF, B shows a weak correlation with cosmic rays for solar cycle 20, and a good anti-correlation for solar cycles 21-23.

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