Ground-Level Enhancement in the Intensity of Cosmic Rays during the Decay Phase of Solar Cycle 24: Spectra and Anisotropy

2021 ◽  
Vol 85 (8) ◽  
pp. 919-921
Author(s):  
M. V. Kravtsova ◽  
V. E. Sdobnov
Keyword(s):  
Solar Cycle ◽  
Cosmic Rays ◽  
Ground Level ◽  
Decay Phase ◽  
Ground Level Enhancement ◽  
Solar Cycle 24 ◽  
Cycle 24

The First Ground-Level Enhancement of Solar Cycle 24 on 17 May 2012 and Its Real-Time Detection

Solar Physics ◽  
2013 ◽  
Vol 289 (1) ◽  
pp. 423-436 ◽  
Author(s):  
A. Papaioannou ◽  
G. Souvatzoglou ◽  
P. Paschalis ◽  
M. Gerontidou ◽  
H. Mavromichalaki
Keyword(s):  
Solar Cycle ◽  
Real Time ◽  
Ground Level ◽  
Ground Level Enhancement ◽  
Solar Cycle 24 ◽  
Real Time Detection ◽  
Cycle 24

Ground level enhancements of cosmic rays in solar cycle 24

2017 ◽  
Vol 43 (7) ◽  
pp. 501-506 ◽  
Author(s):  
M. V. Kravtsova ◽  
V. E. Sdobnov
Keyword(s):  
Solar Cycle ◽  
Cosmic Rays ◽  
Ground Level ◽  
Solar Cycle 24 ◽  
Cycle 24 ◽  
Ground Level Enhancements

An Interpretation of a Possible Mechanism for the First Ground-Level Enhancement of Solar Cycle 24

Solar Physics ◽  
2014 ◽  
Vol 290 (2) ◽  
pp. 613-626 ◽  
Author(s):  
K. A. Firoz ◽  
W. Q. Gan ◽  
Y. P. Li ◽  
J. Rodríguez-Pacheco
Keyword(s):  
Solar Cycle ◽  
Ground Level ◽  
Ground Level Enhancement ◽  
Solar Cycle 24 ◽  
Cycle 24

Small Size Ground Level Enhancements During Solar Cycle 24

Solar Physics ◽  
2020 ◽  
Vol 295 (7) ◽  
Author(s):  
Leonty I. Miroshnichenko ◽  
Chuan Li ◽  
Victor G. Yanke
Keyword(s):  
Solar Cycle ◽  
Ground Level ◽  
Solar Cycle 24 ◽  
Cycle 24 ◽  
Ground Level Enhancements

scholarly journals GLE events in 24th solar cycle

2018 ◽  
Vol 62 ◽  
pp. 01006
Author(s):  
Yury Balabin ◽  
Boris Gvozdevsky ◽  
Aleksei Germanenko ◽  
Eugeny Maurchev
Keyword(s):  
Solar Cycle ◽  
Cosmic Rays ◽  
Ground Level ◽  
Energy Spectra ◽  
Special Technique ◽  
Neutron Monitors ◽  
Ground Level Enhancement ◽  
Solar Cosmic Rays ◽  
The World ◽  
Current Cycle

Started in 2009, the 24th solar cycle is going to end. In 2015, the solar activity was at its maximum, turning down. According to many indices, this cycle turned out to be abnormal. For instance, in the previous, the 23rd cycle, the index such as the number of solar spots was as high as 175, compared with that of the 24th cycle, not exceeding 100. According to the number of GLE-events (ground level enhancement of solar cosmic rays, observed on neutron monitors), the current cycle also differs greatly from the previous ones. In the 23rd cycle, the number of great GLE-events was as high as four, and that of small and moderate being five. In the 24th cycle, only two GLE-events were recorded: GLE 71 (17.05.2012) и GLE 72 (10.09.2017), with the last event being of small amplitude (5%). The presence of the neutron monitors network data enables calculation of the energy spectrum and other parameters of solar cosmic rays. The GLEevents are processed by special technique developed at PGI. It is aimed at solving the inverse problem: based on the data from the world neutron monitors network, to obtain the parameters of solar cosmic rays energy spectra. Like the previous ones, GLE-events 71 and 72 were processed by this technique. The energetic spectra obtained were compared with those in other events of the previous cycles

scholarly journals The 2015 Summer Solstice Storm: One of the Major Geomagnetic Storms of Solar Cycle 24 Observed at Ground Level

Solar Physics ◽  
2018 ◽  
Vol 293 (5) ◽  
Author(s):  
C. R. A. Augusto ◽  
C. E. Navia ◽  
M. N. de Oliveira ◽  
A. A. Nepomuceno ◽  
J. P. Raulin ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Geomagnetic Storms ◽  
Ground Level ◽  
Summer Solstice ◽  
Solar Cycle 24 ◽  
Cycle 24
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