Calculation of the cosmic ray induced ionization for the region of Athens

Makrantoni, P.; Mavromichalaki, H.; Usoskin, Ilya; Papaioannou, Athanasios

doi:10.1088/1742-6596/409/1/012232

Cited by 7 publications

(2 citation statements)

References 5 publications

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“…This fact is due to the CRII following the cosmic ray intensity behavior with which it is positively correlated, while it is negatively correlated with the solar activity. This means that the greater the solar activity, the lower the intensity of the CRII and vice versa Gleeson and Axford 1968;Mavromichalaki et al 1998;Makrantoni et al 2013Makrantoni et al , 2021Makrantoni et al , 2022.…”

Section: Resultsmentioning

confidence: 99%

NMDB@Athens

2023

Cosmic Ray Studies With Neutron Detectors

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This volume documents the papers presented at the hybrid symposium on cosmic ray studies with neutron monitors in Athens in September 2022. The contributions are dedicated to six topics: cosmic rays in the heliosphere, GLE analysis and space weather research, cosmic rays and the Earth's atmosphere, instrumentation and stability of neutron detectors, their response functions, and the data bases and catalogues of the Real-Time database for high resolution Neutron Monitor measurements (NMDB) project, which are freely accessible to a large user community.

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Section: Resultsmentioning

confidence: 99%

NMDB@Athens

2023

Cosmic Ray Studies With Neutron Detectors

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“…One of the important factors on which space weather depends is cosmic rays (CRs). Variations in CR fluxes cause atmospheric ionization, which is associated, in particular, with such processes as formation of clouds, thunderstorms, and tropical hurricanes [Carslaw et al, 2002;Makrantoni et al, 2013]. The period of March 7-17, 2012 was recommended by SCOSTEP for in-depth studies into the space weather effects in the Sun-Earth system during disturbances.…”

Section: Introductionmentioning

confidence: 99%

Variations in cosmic ray cutoff rigidities during the March 8–11, 2012 magnetic storm (CAWSES II period)

Данилова¹,

Птицына²,

Tyasto³

et al. 2023

Solar-Terrestrial Physics

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The geomagnetic cutoff rigidity of cosmic rays (CRs) is the main factor regulating the arrival of CR particles at a given point on Earth's surface or inside the magnetosphere. To study the relationship between cutoffs and near-Earth space parameters, we have selected the strongest magnetic storm that occurred on March 8–11, 2012 during the CAWSES-II interval, recommended by SCOSTEP for detailed studies of solar-terrestrial relations. We have found the geomagnetic cutoffs by two methods: 1) by trajectory calculations in the magnetic field of the perturbed magnetosphere according to the Ts01 model and 2) by the spectrographic global survey method according to the data from the world network of neutron monitors. The largest drop in the cutoffs (−1.1 GV) obtained by the latter method was observed during the recovery phase of the storm. Apparently, this is due to the influence of the supersubstorms that occurred at that time. The analysis has shown that the closest connection of variations in the cutoffs can be traced with the geomagnetic activity index Dst, which indicates the determining contribution of the ring current to the transport of CRs. In addition, we have found a significant connection with the electromagnetic field parameters (with the Bz component of the interplanetary magnetic field and the azimuthal component of the electric field Ey). The dynamic solar wind parameters practically do not control variations in CR geomagnetic cutoff rigidities.

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