Solar cycle and seasonal variations of the solar an lunar daily variations of total electron content at lunping

Journal Article · Thu Nov 01 04:00:00 EST 1979 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA084iA11p06595· OSTI ID:5614152

Huang, Y

The solar and lunar daily variations of the ionospheric total electron content observed at Lunping, which lies close to the crest zone of the so-called equatorial anomaly, were analyzed by Chapman-Miller method. The lunisolar diurnal variation L/sub 1/ and lunar semidiurnal variation L/sub 2/ were found to have significant seasonal variations, with amplitude increasing steadily from summer to winter. The hours for L/sub 1/ and L/sub 2/ variations to attain their respective maximum values also increase steadily from summer to winter. The seasonal variation of the semidiurnal variation l/sub 2/ was found to be explainable by the additional fountain effect caused by the similar seasonal variation of the lunar semidiurnal electric field induced at the equatorial region. However, the seasonal variation of the lunisolar variation L/sub 1/ was found not to be explainable by the additional fountain effect. Seasonal variations for the harmonic components of the solar daily variation were found and described.

• Research Organization: Telecommunication Laboratories, M. O. C., Chung-Li P. O. Box 71, Taiwan, Republic of China
• OSTI ID: 5614152
• Journal Information: J. Geophys. Res.; (United States), Journal Name: J. Geophys. Res.; (United States) Vol. 84:A11; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DAILY VARIATIONS
EARTH ATMOSPHERE
ELECTRON DENSITY
FARADAY EFFECT
HARMONICS
IONOSPHERE
MOON
OSCILLATIONS
PLANETARY IONOSPHERES
SATELLITES
SEASONAL VARIATIONS
SOLAR CYCLE
VARIATIONS