@Article{MendesJúniorDomEchHajMen:2017:ChHiLo,
author = "Mendes J{\'u}nior, Odim and Domingues, Margarete Oliveira and
Echer, Ezequiel and Hajra, Rajkumar and Menconi, Varlei Everton",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Laboratoire de Physique et Chimie
de l’Environnement et de l’Espace (LPC2E)} and {Instituto Nacional
de Pesquisas Espaciais (INPE)}",
title = "Characterization of high-intensity, long-duration continuous
auroral activity (HILDCAA) events using recurrence quantification
analysis",
journal = "Nonlinear Processes in Geophysics",
year = "2017",
volume = "24",
number = "3",
pages = "407--417",
month = "Aug.",
abstract = "Considering the magnetic reconnection and the viscous interaction
as the fundamental mechanisms for transfer particles and energy
into the magnetosphere, we study the dynamical characteristics of
auroral electrojet (AE) index during high-intensity, long-duration
continuous auroral activity (HILDCAA) events, using a long-term
geomagnetic database (19752012), and other distinct interplanetary
conditions (geomagnetically quiet intervals, co-rotating
interaction regions (CIRs)/high-speed streams (HSSs) not followed
by HILDCAAs, and events of AE comprised in global intense
geomagnetic disturbances). It is worth noting that we also study
active but non-HILDCAA intervals. Examining the geomagnetic AE
index, we apply a dynamics analysis composed of the phase space,
the recurrence plot (RP), and the recurrence quantification
analysis (RQA) methods. As a result, the quantification finds two
distinct clusterings of the dynamical behaviours occurring in the
interplanetary medium: one regarding a geomagnetically quiet
condition regime and the other regarding an interplanetary
activity regime. Furthermore, the HILDCAAs seem unique events
regarding a visible, intense manifestations of interplanetary
Alfv{\'e}nic waves; however, they are similar to the other kinds
of conditions regarding a dynamical signature (based on RQA),
because it is involved in the same complex mechanism of generating
geomagnetic disturbances. Also, by characterizing the proper
conditions of transitions from quiescent conditions to weaker
geomagnetic disturbances inside the magnetosphere and ionosphere
system, the RQA method indicates clearly the two fundamental
dynamics (geomagnetically quiet intervals and HILDCAA events) to
be evaluated with magneto-hydrodynamics simulations to understand
better the critical processes related to energy and particle
transfer into the magnetosphereionosphere system. Finally, with
this work, we have also reinforced the potential applicability of
the RQA method for characterizing nonlinear geomagnetic processes
related to the magnetic reconnection and the viscous interaction
affecting the magnetosphere.",
doi = "10.5194/npg-24-407-2017",
url = "http://dx.doi.org/10.5194/npg-24-407-2017",
issn = "1023-5809",
language = "en",
targetfile = "mendes_characterization.pdf",
urlaccessdate = "19 mar. 2024"
}