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Common solar wind drivers behind magnetic storm magnetospheric substorm dependency

Runge, Jakob and Balasis, Georgios and Daglis, Ioannis A. and Papadimitriou, Constantinos and Donner, Reik V. (2018) Common solar wind drivers behind magnetic storm magnetospheric substorm dependency. Scientific Reports, 8 (1), p. 16987. Nature Publishing Group. ISSN 2045-2322

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Official URL: http://www.nature.com/articles/s41598-018-35250-5

Abstract

The dynamical relationship between magnetic storms and magnetospheric substorms is one of the most controversial issues of contemporary space research. Here, we address this issue through a causal inference approach to two corresponding indices in conjunction with several relevant solar wind variables. We find that the vertical component of the interplanetary magnetic field is the strongest and common driver of both storms and substorms. Further, our results suggest, at least based on the analyzed indices, that there is no statistical evidence for a direct or indirect dependency between substorms and storms and their statistical association can be explained by the common solar drivers. Given the powerful statistical tests we performed (by simultaneously taking into account time series of indices and solar wind variables), a physical mechanism through which substorms directly or indirectly drive storms or vice versa is, therefore, unlikely.

Item URL in elib:https://elib.dlr.de/126421/
Document Type:Article
Title:Common solar wind drivers behind magnetic storm magnetospheric substorm dependency
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Runge, JakobInstitute of Data Sciencehttps://orcid.org/0000-0002-0629-1772
Balasis, GeorgiosUNSPECIFIEDUNSPECIFIED
Daglis, Ioannis A.UNSPECIFIEDUNSPECIFIED
Papadimitriou, ConstantinosUNSPECIFIEDUNSPECIFIED
Donner, Reik V.UNSPECIFIEDUNSPECIFIED
Date:2018
Journal or Publication Title:Scientific Reports
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:8
Page Range:p. 16987
Publisher:Nature Publishing Group
ISSN:2045-2322
Status:Published
Keywords:Magnetospheric physics,Space physics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Jena
Institutes and Institutions:Institute of Data Science
Deposited By: Runge, Jakob
Deposited On:08 Feb 2019 08:09
Last Modified:08 Feb 2019 08:09

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