Geoeffective space weather events signatures in cosmic rays during the ascending phase of the solar cycle 24

Abstract

Solar originating events are continually evident in galactic cosmic ray (GCR) flux registered at the ground by neutron monitors and in situ by space probes. We analyze time intervals of sporadic Forbush decreases (Fd) during the ascending phase of solar cycle 24. We consider cosmic rays flux, as well as, solar, heliospheric and geomagnetic activity parameters, around these periods, using different mathematical tools. Moreover, for this epoch of solar activity we compute geoelectric field for the Poland's region using a 1-D layered conductivity Earth model. Against the background of the above-mentioned parameters, we analyze the number of failures in southern Poland transmission lines. Our results reveal the increase in the superposed averaged number of failures around the appearance of solar transients visible in the GCR flux, suggesting their potential coupling.

Rapporteur Talk: Solar and Heliospheric

“…Various practical aspects of space weather were discussed based on data from ground-based equipment: a global network of the ground-based multidirectional muon detectors (the Global Muon Detector Network, GMDN) and neutron monitors data, such as situation when 38 of the 49 Starlink satellites launched on 03.02.2022 re-entered the atmosphere [44] or electrical grid failures [45]. There were also presented studies of the CMEs-driven GCR variation having no direct effect on Earth [46].…”