scholarly journals Wavelet analysis of long-term variations in neutron monitor, sunspot number and interplanetary magnetic field data

Author(s):  
Fraser Baird ◽  
Alexander MacKinnon

For the first time, based on the experimental data of AMS-02, a three-parameter spectrum of variations of ga - lactic cosmic rays was obtained in the range of rigidity 1- 20 GV, to which neutron monitors are most sensitive. It was found that during the period of negative polarity of the solar magnetic field, a power-law spectrum of va - riations is observed with a strong exponential decay in the region of high rigidity. When the polarity changes to positive at the beginning of the new 24th solar cycle, the spectrum of cosmic ray variations becomes purely po- wer-law. The transition to the experimentally obtained spectrum of variations will make it possible to remove a number of uncertainties and increase the accuracy of the analysis of data from the ground network of detectors. This will make it possible to retrospectively obtain fluxes of galactic protons with an average monthly resolution for the period of the space era based on ground-based monitoring.

Author(s):  
Anatoly V. Belov ◽  
Raisa T. Gushchina ◽  
Victor Yanke ◽  
Liudmila Trefilova ◽  
Pavel G. Kobelev ◽  
...  

For the first time, based on the experimental data of AMS-02, a three-parameter spectrum of variations of ga - lactic cosmic rays was obtained in the range of rigidity 1- 20 GV, to which neutron monitors are most sensitive. It was found that during the period of negative polarity of the solar magnetic field, a power-law spectrum of va - riations is observed with a strong exponential decay in the region of high rigidity. When the polarity changes to positive at the beginning of the new 24th solar cycle, the spectrum of cosmic ray variations becomes purely po- wer-law. The transition to the experimentally obtained spectrum of variations will make it possible to remove a number of uncertainties and increase the accuracy of the analysis of data from the ground network of detectors. This will make it possible to retrospectively obtain fluxes of galactic protons with an average monthly resolution for the period of the space era based on ground-based monitoring.


1993 ◽  
Vol 98 (A3) ◽  
pp. 3585-3603 ◽  
Author(s):  
John W. Bieber ◽  
Jiasheng Chen ◽  
William H. Matthaeus ◽  
Charles W. Smith ◽  
Martin A. Pomerantz

Solar Physics ◽  
2019 ◽  
Vol 294 (9) ◽  
Author(s):  
Krzysztof Iskra ◽  
Marek Siluszyk ◽  
Michael Alania ◽  
Witold Wozniak

Abstract In the present article, we analyze long-term changes in the intensity of galactic cosmic rays (GCRs) in different polarity epochs of the solar magnetic cycles from 1959 to 2014. Our purpose is to carry out a study of the delay time (DT) between the changes of the GCR intensity and various parameters characterizing the conditions in the heliosphere. We prove the existence of varying DTs between the changes of GCR intensity and the parameters characterizing solar activity, such as sunspot number and tilt angle. Based on our investigation, we obtained different DTs in epochs with different global solar magnetic field polarities. We conclude that the observed DTs are very important parameters for the study of GCR transport in the heliosphere.


2009 ◽  
Vol 43 (4) ◽  
pp. 673-679 ◽  
Author(s):  
R.T. Gushchina ◽  
A.V. Belov ◽  
V.N. Obridko ◽  
B.D. Shelting

Sign in / Sign up

Export Citation Format

Share Document