Variability of the equatorial electrojet: Its relations to the Sq current system and semidiurnal tides

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/91GL02413· OSTI ID:7206162

Stening, R J ^[1]

---

1. Univ. of New South Wales, Kensington (Australia)

Average diurnal and seasonal variations of the horizontal geomagnetic element {Delta}H are examined. The semiannual variation in equatorial electrojet strength is found to disappear in afternoon hours. This may be related to changes in the latitude of the Sq current system focus during the day. This in turn may be caused by a superposed semidiurnal tide and may also explain {Delta}H variations at stations near the focus.

• OSTI ID: 7206162
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 18:11; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

661320* -- Auroral
Ionospheric
& Magnetospheric Phenomena-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CURRENTS
DAILY VARIATIONS
EARTH ATMOSPHERE
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
ELECTROJETS
GEOGRAPHICAL VARIATIONS
GRAVITY WAVES
IONOSPHERE
LATITUDE EFFECT
PHYSICAL PROPERTIES
PLANETARY IONOSPHERES
SEASONAL VARIATIONS
VARIATIONS