The 4th International Symposium on Cosmic Rays and Astrophysics (ISCRA-2023)

Cosmic ray variations of magneospheric and atmospheric origin in September 2017

29 Jun 2023, 12:15

15m

B-100 (National Research Nuclear University MEPhI)

Original Talk Cosmo- and geophysical aspects of cosmic rays at the ground level Cosmo- and geophysical aspects of cosmic rays at the ground level

Speaker

Ivan Kovalev (Institute of Solar-Terrestrial Physics SB RAS)

Description

Using data of ground level cosmic ray observations on neutron monitor world network, Yakutsk muon telescope complex and URAGAN muon hodoscope (Moscow), we carried out a research of magnetospheric and atmospheric cosmic ray variations over September 2017 by a modified spectrographic global survey method. We obtained time dependence of changes in the planetary system of rigidities of geomagnetic cutoff (RGC) and average mass temperature over the muon detector sites. Based on the data on the planetary system of RGCs, we calculated the parameters of certain magnetospheric current systems during the geomagnetic disturbances of September 2017 within an axial symmetric model of a bounded magnetosphere.