NDLI: Morning polar substorms and variations in the atmospheric electric field

Content Provider	Springer Nature Link
Author	Kleimeva, N. G. Kozyreva, O. V. Kubicki, M. Michwski, S.
Copyright Year	2010
Abstract	The effects of morning magnetospheric substorms in the variations in near-Earth atmospheric electricity according to the observations of the electric field vertical component (E $_{z}$), at Hornsund polar observatory (Spitsbergen). The E $_{z}$, data, obtained under the conditions of fair weather (i.e., in the absence of a strong wind, precipitation, and fog), are analyzed. An analysis of the observations indicated that the development of a magnetospheric substorm in the Earth’s morning sector is as a rule accompanied by positive deviations in E $_{z}$, independently of the Hornsund location: in the polar cap or at its boundary. In all considered events, Hornsund was located near the center of the morning convection vortex. In the evening sector, when Hornsund fell in the region of evening convection vortex, the development of a geomagnetic substorm was accompanied by negative deviations in E $_{z}$., It has been concluded that the variations in the atmospheric electric field E $_{z}$), at polar latitudes, observed during the development of magnetospheric substorms, result from the penetration of electric fields of polar ionospheric convection (which are intensified during a substorm) to the Earth’s surface.
Starting Page	48
Ending Page	57
Page Count	10
File Format	PDF
ISSN	00167932
Journal	Geomagnetism and Aeronomy
Volume Number	50
Issue Number	1
e-ISSN	1555645X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2010-03-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics Space and Planetary Science

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