scholarly journals Signs of geoeffective space weather events in cosmic rays during the first half of the solar cycle 24

2021 ◽  
pp. 119-124
Author(s):  
Agnieszka Gil ◽  
Renata Modzelewska ◽  
Szczepan Moskwa ◽  
Agnieszka Siluszyk ◽  
Marek Siluszyk ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Space Weather ◽  
Transmission Lines ◽  
Cosmic Ray ◽  
Neutron Monitors ◽  
Time Intervals ◽  
Forbush Decreases ◽  
Solar Cycle 24 ◽  
Cycle 24 ◽  
Galactic Cosmic Ray

Solar originating events are continually evident in galactic cosmic ray (GCR) flux registered at the ground by neutron monitors. We analyze time intervals of sporadic Forbush decreases (Fd) observed by neutron monitors (NM) during the first half of solar cycle 24. We consider NMs data, as well as, solar, heliospheric and geoma - gnetic activity parameters, around those periods, using different mathematical tools. Subsequently, an impact of space weather phenomena on energy infrastructure is well known, in the further step we consider logs from one of the Polish transmission lines operators during the time intervals of Fds. Based on the data from the Ins- titute of Meteorology and Water Management-Polish National Research Institute we exclude from the analysis the weather-related failures. We found that the increase in the superposed averaged number of failures appears around Forbush decreases.

scholarly journals Recurrent Galactic Cosmic-Ray Flux Modulation in L1 and Geomagnetic Activity during the Declining Phase of the Solar Cycle 24

2020 ◽  
Vol 904 (1) ◽  
pp. 64
Author(s):  
Catia Grimani ◽  
Andrea Cesarini ◽  
Michele Fabi ◽  
Federico Sabbatini ◽  
Daniele Telloni ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Geomagnetic Activity ◽  
Cosmic Ray ◽  
Solar Cycle 24 ◽  
Flux Modulation ◽  
Cycle 24 ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

scholarly journals Numerical Modeling of Galactic Cosmic-Ray Proton and Helium Observed by AMS-02 during the Solar Maximum of Solar Cycle 24

2019 ◽  
Vol 871 (2) ◽  
pp. 253 ◽  
Author(s):  
Claudio Corti ◽  
Marius S. Potgieter ◽  
Veronica Bindi ◽  
Cristina Consolandi ◽  
Christopher Light ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Solar Cycle ◽  
Solar Maximum ◽  
Cosmic Ray ◽  
Solar Cycle 24 ◽  
Cycle 24 ◽  
Galactic Cosmic Ray

scholarly journals Investigation of the relation between space-weather parameters and Forbush decreases automatically selected from Moscow and Apatity cosmic ray stations during solar cycle 23

2021 ◽  
Vol 21 (11) ◽  
pp. 273
Author(s):  
Jibrin Adejoh Alhassan ◽  
Ogbonnaya Okike ◽  
Augustine Ejikeme Chukwude
Keyword(s):  
Solar Cycle ◽  
Space Weather ◽  
Cosmic Ray ◽  
Computer Code ◽  
Weather Data ◽  
Forbush Decreases ◽  
Two Samples ◽  
Solar Cycle 23 ◽  
Weather Parameters ◽  
Galactic Cosmic Ray

Abstract We present the results of an investigation of the relation between space-weather parameters and cosmic ray (CR) intensity modulation using algorithm-selected Forbush decreases (FDs) from Moscow (MOSC) and Apatity (APTY) neutron monitor (NM) stations during solar cycle 23. Our FD location program detected 408 and 383 FDs from MOSC and APTY NM stations respectively. A coincident computer code employed in this work detected 229 FDs that were observed at the same Universal Time (UT) at the two stations. Out of the 229 simultaneous FDs, we formed a subset of 139 large FDs(%) ≤ − 4 at the MOSC station. We performed a two-dimensional regression analysis between the FD magnitudes and the space-weather data on the two samples. We find that there were significant space-weather disturbances at the time of the CR flux depressions. The correlation between the space-weather parameters and decreases in galactic cosmic ray (GCR) intensity at the two NM stations is statistically significant. The implications of the present space-weather data on CR intensity depressions are highlighted.

scholarly journals Fair space weather for solar cycle 24

2005 ◽  
Vol 32 (21) ◽  
Author(s):  
Kenneth Schatten
Keyword(s):  
Solar Cycle ◽  
Space Weather ◽  
Solar Cycle 24 ◽  
Cycle 24
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