@Article{TsurutaniRajrEcheGjer:2015:IsEvAr,
author = "Tsurutani, Bruce T. and Rajra, Rajkumar and Echer, Ezequiel and
Gjerloev, J. W.",
affiliation = "{Jet Propulsion Laboratory} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Johns Hopkins University Applied Physics
Laboratory}",
title = "Extremely intense (SML \≤2500 nT) substorms: Isolated
events that are externally triggered?",
journal = "Annales Geophysicae",
year = "2015",
volume = "33",
number = "5/6",
pages = "519--524",
month = "May",
keywords = "Magnetospheric physics (storms and substorms).",
abstract = "We examine particularly intense substorms (SML \≤2500 nT),
hereafter called {"}supersubstorms{"} or SSS events, to identify
their nature and their magnetic storm dependences. It is found
that these intense substorms are typically isolated events and are
only loosely related to magnetic storms. SSS events can occur
during super (Dst \≤250 nT) and intense ('100 nT \≥
Dst >250) magnetic storms. SSS events can also occur during
nonstorm (Dst \≥50 nT) intervals. SSSs are important
because the strongest ionospheric currents will flow during these
events, potentially causing power outages on Earth. Several SSS
examples are shown. SSS events appear to be externally triggered
by small regions of very high density (\∼30 to 50
cm\−3) solar wind plasma parcels (PPs) impinging upon the
magnetosphere. Precursor southward interplanetary magnetic fields
are detected prior to the PPs hitting the magnetosphere. Our
hypothesis is that these southward fields input energy into the
magnetosphere/magnetotail and the PPs trigger the release of the
stored energy.",
doi = "10.5194/angeo-33-519-2015",
url = "http://dx.doi.org/10.5194/angeo-33-519-2015",
issn = "0992-7689",
language = "en",
targetfile = "tsurutani_extremely.pdf",
urlaccessdate = "27 abr. 2024"
}