@Article{DalLagoSSSLSGGBVEG:2006:VeInGe,
author = "Dal Lago, Alisson and Santos, Jean and Silva, Marlos Rockenbach da
and Schuch, Nelson Jorge and Lucas, Aline de and Schwenn, Ranier
and Gonzalez, Alicia Luisa Clua and Gonzalez, Walter Dem{\'e}trio
and Balmaceda, Laura A. and Vieira, Luiz Eduardo Antunes and
Echer, Ezequiel and Guarnieri, Fernando Luis",
affiliation = "Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de
Geof{\'{\i}}sica Espacial (INPE.DGE) and {Max-Planck-Institut
f{\"u}r Sonnensystemforschung} and Instituto Nacional de
Pesquisas Espaciais, Divis{\~a}o de Geof{\'{\i}}sica Espacial
(INPE.DGE) and Instituto Nacional de Pesquisas Espaciais, Centro
Regional Sul de Pesquisas Espaciais (INPE) and Instituto Nacional
de Pesquisas Espaciais, Divis{\~a}o de Geof{\'{\i}}sica
Espacial (INPE.DGE) and {Max-Planck-Institut f{\"u}r
Sonnensystemforschung} and Instituto Nacional de Pesquisas
Espaciais, Divis{\~a}o de Geof{\'{\i}}sica Espacial (INPE.DGE)
and Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de
Geof{\'{\i}}sica Espacial (INPE.DGE) and {Max-Planck-Institut
f{\"u}r Sonnensystemforschung} and Instituto Nacional de
Pesquisas Espaciais, Divis{\~a}o de Geof{\'{\i}}sica Espacial
(INPE.DGE) and Instituto Nacional de Pesquisas Espaciais,
Divis{\~a}o de Geof{\'{\i}}sica Espacial (INPE.DGE) and
Instituto Nacional de Pesquisas Espaciais, Divis{\~a}o de
Geof{\'{\i}}sica Espacial (INPE.DGE)",
title = "The 17-22 October (1999) solar-interplanetary-geomagnetic event:
Very intense geomagnetic storm associated with a pressure balance
between interplanetary coronal mass ejection and a high-speed
stream",
journal = "Journal of Geophysical Research",
year = "2006",
volume = "111",
number = "A7",
pages = "A07S14 (5pp)",
month = "July",
keywords = "coronal mass ejections, geomagnetic storms, speed streams,
Magnetospheric Physics: Magnetic storms and substorms, solar
physics, astrophysics, coronal mass ejections, coronal holes,
ejecta, driver gases, magnetic clouds, corotating streams.",
abstract = "Using observations from the Advanced Composition Explorer (ACE)
magnetic field and plasma experiments, we investigate the
magnetic, thermal, and dynamic pressure balance in the border of a
high-speed stream (HSS) and an average-speed interplanetary
coronal mass ejection (ICME) observed on 2122 October (1999). We
believe that the HSS compressed the ICME and intensified its
internal southward magnetic field, resulting in a very intense
geomagnetic storm, with peak Dst of \−237 nT. In solar
cycle 23 this was the only event, out of 18 very intense
geomagnetic storms, i.e., peak Dst < \−200 nT, which was
caused by such a mechanism. We also address the solar origin of
this very intense geomagnetic storm, using combined solar data
from three different sources: a ground-based source, coronal hole
maps from the National Solar Observatory (NSO) at Kitt Peak, and
two satellite-based sources, eruption activity from the Extreme
Ultraviolet Imaging Telescope (EIT) and coronal mass ejection
observations from the Large Angle and Spectrometric Coronagraph
(LASCO), both aboard the Solar and Heliospheric Observatory
(SOHO). A coronal hole is evident just beside (to the east of) the
active region from which an average-speed coronal mass ejection
lifted off on 17-18 October (1999). This was the only possible
solar origin of the 21-22 October interplanetary geomagnetic
event.",
doi = "10.1029/2005JA011394",
url = "http://dx.doi.org/10.1029/2005JA011394",
issn = "0148-0227 and 2156-2202",
language = "en",
targetfile = "jgra18152.pdf",
urlaccessdate = "29 jun. 2024"
}