Publication Date:
2020-07-23
Description:
The continuously expanding toolbox of nonlinear time series analysis techniques has
recently highlighted the importance of dynamical complexity to understand the behavior of the
complex solar wind–magnetosphere–ionosphere–thermosphere coupling system and its components.
Here, we apply new such approaches, mainly a series of entropy methods to the time series of the
Earth’s magnetic field measured by the Swarm constellation. We show successful applications of
methods, originated from information theory, to quantitatively study complexity in the dynamical
response of the topside ionosphere, at Swarm altitudes, focusing on the most intense magnetic storm
of solar cycle 24, that is, the St. Patrick’s Day storm, which occurred in March 2015. These entropy
measures are utilized for the first time to analyze data from a low-Earth orbit (LEO) satellite mission
flying in the topside ionosphere. These approaches may hold great potential for improved space
weather nowcasts and forecasts.
Description:
ESA contract N. 4000125663/18/I-NB (INTENS)
Description:
Published
Description:
574
Description:
1A. Geomagnetismo e Paleomagnetismo
Description:
JCR Journal
Keywords:
dynamical complexity
;
entropy
;
magnetic storm
;
space weather
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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