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

0542858 - ÚI 2022 RIV CH eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA19-16066S
Grant ostatní: AV ČR(CZ) AP1901
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:67985807
Klíčová slova: time series * causality * information transfer * time reversal * solar wind-magnetosphere–ionosphere system * space weather
Obor OECD: Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)
Impakt faktor: 2.738, rok: 2021
Způsob publikování: 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.
Trvalý link: http://hdl.handle.net/11104/0320198