Л.Н.Гумилев атындағы ЕҰУ космофизикалық кешен қондырғысының деректері бойынша ғарыштық сәулелер қарқындылының өзгеруін тіркеу және талдау

Abstract

This paper presents the main technical characteristics of the CARPET installation, which forms part of the Cosmophysical Experimental Complex at L. N. Gumilyov Eurasian National University. It reports the results of experimental studies carried out between 2017 and 2024, along with selected aspects of the analysis of recorded variations in cosmic ray fluxes and parameters of the geomagnetic and interplanetary environment. A comparative analysis of temporal variations in secondary cosmic ray fluxes is provided, employing geomagnetic indices (Kp, Ap, Dst), solar wind plasma velocity (Fs), and data from ground-based neutron monitors during major geomagnetic disturbances in 2017, 2021, and 2024, as registered by CARPET detector modules at the university’s scientific complex. The study also incorporates data on solar flare activity, including graphical representation, and examines the characteristics and parameters of solar flares responsible for geomagnetic disturbances. In addition, information on magnetic storms is presented. The analysis reveals the occurrence of Forbush decreases, with their specific features and properties discussed. The findings demonstrate that variations in cosmic ray intensity are driven by solar surface activity and are linked to subsequent changes in elements of the geomagnetic field