A 3-D current system of an ionospheric dynamo including a skin effect in an anisotropic plasma

Plotkin V. V.

doi:10.1186/bf03351804

A 3-D current system of an ionospheric dynamo including a skin effect in an anisotropic plasma

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Plotkin V. V.

Institute of geophysics SB RAS

書誌事項

タイトル別名

3 D current system of an ionospheric dynamo including a skin effect in an anisotropic plasma

公開日: 2005

DOI

10.1186/bf03351804

公開者: 地球電磁気・地球惑星圏学会、公益社団法人日本地震学会、特定非営利活動法人日本火山学会、日本測地学会、日本惑星科学会

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説明

The numerical two-mode electromagnetic model of an ionospheric dynamo is constructed taking into account a skin effect of a field in an anisotropic plasma, i.e. a non-potential electric field of Sq-variations in the ionosphere. It is shown that a three-dimensional current system generated by the dynamo action of winds is located at altitudes less than about 200 km basically. It does not depend on an ionosphere condition in upper layers and weaker field-aligned currents between the northern and southern hemispheres practically, and an almost complete closed current circuit is generated in the dynamo layer.