Magnetic storm cessation during sustained northward IMF

I. S. Veselovsky; V. Bothmer; P. Cargill; A. V. Dmitriev; K. G. Ivanov; E. Romashets; A. N. Zhukov; O. S. Yakovchouk

doi:10.1016/j.asr.2004.06.020

Magnetic storm cessation during sustained northward IMF

I. S. Veselovsky, V. Bothmer, P. Cargill, A. V. Dmitriev, K. G. Ivanov, E. Romashets, A. N. Zhukov, O. S. Yakovchouk

Department of Space Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Times of sustained strong northward IMF can interrupt the magnetic storm development and lead to lower levels of geomagnetic activity for many hours. During 1997-2000 we have found two events of this kind observed on November 8, 1998 and October 13, 2000. In both cases, the storms started as usual after arrival of ejecta with a southward IMF component from the Sun to the Earth, but ceased after several hours due to the onset of sustained northward IMF leading to the faster recovery process. After the passage of this so-called positive domain, the storm development started again. The heliospheric magnetic field intensity remained enhanced and nearly constant. The solar origins of the geomagnetic storm interruptions have been investigated. Tentatively they may be related to strong nonlinear AlfvEe Cyrillic sigňn type solitary waves excited by non-stationary coronal current variations with a characteristic time-scale of about a day.

Original language	English
Pages (from-to)	2460-2464
Number of pages	5
Journal	Advances in Space Research
Volume	36
Issue number	12
DOIs	https://doi.org/10.1016/j.asr.2004.06.020
State	Published - 2005

Keywords

Interplanetary magnetic field
Magnetic storm cessation
Northward IMF
Space weather

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title = "Magnetic storm cessation during sustained northward IMF",

abstract = "Times of sustained strong northward IMF can interrupt the magnetic storm development and lead to lower levels of geomagnetic activity for many hours. During 1997-2000 we have found two events of this kind observed on November 8, 1998 and October 13, 2000. In both cases, the storms started as usual after arrival of ejecta with a southward IMF component from the Sun to the Earth, but ceased after several hours due to the onset of sustained northward IMF leading to the faster recovery process. After the passage of this so-called positive domain, the storm development started again. The heliospheric magnetic field intensity remained enhanced and nearly constant. The solar origins of the geomagnetic storm interruptions have been investigated. Tentatively they may be related to strong nonlinear AlfvEe Cyrillic sig{\v n}n type solitary waves excited by non-stationary coronal current variations with a characteristic time-scale of about a day.",

keywords = "Interplanetary magnetic field, Magnetic storm cessation, Northward IMF, Space weather",

author = "Veselovsky, {I. S.} and V. Bothmer and P. Cargill and Dmitriev, {A. V.} and Ivanov, {K. G.} and E. Romashets and Zhukov, {A. N.} and Yakovchouk, {O. S.}",

note = "Funding Information: This work was partially supported by the Grants RFBR 01-02-16579, 00-15-96623 and 04-02-15736, INTAS-ESA 99-00727, INTAS 00-0752, INTAS 03-51-6206, State Program “Astronomy” and Federal Program “Universities of Russia”.",

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doi = "10.1016/j.asr.2004.06.020",

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TY - JOUR

T1 - Magnetic storm cessation during sustained northward IMF

AU - Veselovsky, I. S.

AU - Bothmer, V.

AU - Cargill, P.

AU - Dmitriev, A. V.

AU - Ivanov, K. G.

AU - Romashets, E.

AU - Zhukov, A. N.

AU - Yakovchouk, O. S.

N1 - Funding Information: This work was partially supported by the Grants RFBR 01-02-16579, 00-15-96623 and 04-02-15736, INTAS-ESA 99-00727, INTAS 00-0752, INTAS 03-51-6206, State Program “Astronomy” and Federal Program “Universities of Russia”.

PY - 2005

Y1 - 2005

N2 - Times of sustained strong northward IMF can interrupt the magnetic storm development and lead to lower levels of geomagnetic activity for many hours. During 1997-2000 we have found two events of this kind observed on November 8, 1998 and October 13, 2000. In both cases, the storms started as usual after arrival of ejecta with a southward IMF component from the Sun to the Earth, but ceased after several hours due to the onset of sustained northward IMF leading to the faster recovery process. After the passage of this so-called positive domain, the storm development started again. The heliospheric magnetic field intensity remained enhanced and nearly constant. The solar origins of the geomagnetic storm interruptions have been investigated. Tentatively they may be related to strong nonlinear AlfvEe Cyrillic sigňn type solitary waves excited by non-stationary coronal current variations with a characteristic time-scale of about a day.

AB - Times of sustained strong northward IMF can interrupt the magnetic storm development and lead to lower levels of geomagnetic activity for many hours. During 1997-2000 we have found two events of this kind observed on November 8, 1998 and October 13, 2000. In both cases, the storms started as usual after arrival of ejecta with a southward IMF component from the Sun to the Earth, but ceased after several hours due to the onset of sustained northward IMF leading to the faster recovery process. After the passage of this so-called positive domain, the storm development started again. The heliospheric magnetic field intensity remained enhanced and nearly constant. The solar origins of the geomagnetic storm interruptions have been investigated. Tentatively they may be related to strong nonlinear AlfvEe Cyrillic sigňn type solitary waves excited by non-stationary coronal current variations with a characteristic time-scale of about a day.

KW - Interplanetary magnetic field

KW - Magnetic storm cessation

KW - Northward IMF

KW - Space weather

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U2 - 10.1016/j.asr.2004.06.020

DO - 10.1016/j.asr.2004.06.020

M3 - 期刊論文

AN - SCOPUS:28044442295

SN - 0273-1177

VL - 36

SP - 2460

EP - 2464

JO - Advances in Space Research

JF - Advances in Space Research

IS - 12

ER -

Magnetic storm cessation during sustained northward IMF

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Keywords

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