Causality and Information Transfer Between the Solar Wind and the Magnetosphere–Ionosphere System

0542858 - ÚI 2022 RIV CH eng J - Journal Article
Manshour, Pouya - Balasis, G. - Consolini, G. - Papadimitriou, C. - Paluš, Milan
Causality and Information Transfer Between the Solar Wind and the Magnetosphere–Ionosphere System.
Entropy. Roč. 23, č. 4 (2021), č. článku 390. E-ISSN 1099-4300
R&D Projects: GA ČR(CZ) GA19-16066S
Grant - others:AV ČR(CZ) AP1901
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:67985807
Keywords : time series * causality * information transfer * time reversal * solar wind-magnetosphere–ionosphere system * space weather
OECD category: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Impact factor: 2.738, year: 2021
Method of publishing: Open access

An information-theoretic approach for detecting causality and information transfer is used to identify interactions of solar activity and interplanetary medium conditions with the Earth’s magnetosphere–ionosphere systems. A causal information transfer from the solar wind parameters to geomagnetic indices is detected. The vertical component of the interplanetary magnetic field (Bz) influences the auroral electrojet (AE) index with an information transfer delay of 10 min and the geomagnetic disturbances at mid-latitudes measured by the symmetric field in the H component (SYM-H) index with a delay of about 30 min. Using a properly conditioned causality measure, no causal link between AE and SYM-H, or between magnetospheric substorms and magnetic storms can be detected. The observed causal relations can be described as linear time-delayed information transfer.
Permanent Link: http://hdl.handle.net/11104/0320198