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Author Rastogi, R. G.
Source Indian Institute of Astrophysics
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Counterflow ♦ Diurnal Variations ♦ Equatorial Electrojet ♦ Geomagnetism ♦ Ionospheric Currents ♦ Sporadic E Layer ♦ Earth Magnetosphere ♦ Electric Fields ♦ Ionospheric Drift ♦ Lunar Tides ♦ Magnetic Fields ♦ Polar Substorms
Description Experimental data on daily variations in the geomagnetic field are analyzed for evidence of counterflowing electrojets. In particular, the disappearance of the q type of Es layer (Es-q) and the appearance of blanketing-type Es (Es-b) are investigated. Various findings are reported; among them is the suggestion that the source of the upper (107 km) eastward current is the Sq dynamo current system, and that the lower (100 km) westward current is associated with the lunar current system or due to the electric fields generated by the interaction of the solar wind with the magnetosphere or by various polar substorm processes.
ISSN 02534142
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Institution Indian Academy of Sciences
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