NDLI: Storm-intensity criteria for several classes of the driving interplanetary structures

Content Provider	Springer Nature Link
Author	Vieira, Luis Eduardo Antunes Gonzalez, Walter D. Echer, Ezequiel Tsurutani, Bruce T.
Copyright Year	2004
Abstract	In this paper we discuss the main-phase evolution of intense magnetic storms, associated with the passage of different interplanetary magnetic structures. It is shown that their evolution, driven by intense magnetic fields in the sheath region just behind interplanetary shocks, evolves faster (implying physically different magnetospheric configurations) than that associated with intense magnetic fields in the ejecta itself and in corotating streams. The estimated ring-current injection rate for the main phase of intense magnetic storms caused by sheath fields is ∼10 times greater than the estimated injection rate for N–S magnetic clouds. Based on these results, we propose storm-intensity criteria for several classes of the driving interplanetary structures. The time necessary to reach a Dst/SYM index threshold level is an important parameter for a space weather forecast.
Starting Page	245
Ending Page	258
Page Count	14
File Format	PDF
ISSN	00380938
Journal	Solar Physics
Volume Number	223
Issue Number	1
e-ISSN	1573093X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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Storm-intensity criteria for several classes of the driving interplanetary structures