Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa31a1707k&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SA31A-1707
Physics
[0355] Atmospheric Composition And Structure / Thermosphere: Composition And Chemistry, [3369] Atmospheric Processes / Thermospheric Dynamics
Scientific paper
Recent studies have identified the wave-like longitudinal structure in the low-latitude thermosphere. Direct penetration of atmospheric tides or the ion-neutral interaction is presumably the source of the thermospheric wave structure, but its source has not yet been clarified. Accurate knowledge of the characteristics of the thermospheric wave structure is essential to identify its driving mechanism. In this study, we examine the seasonal, diurnal, and solar cycle variations of the amplitude and phase in the thermospheric longitudinal wave structure during the solar cycle 23 by analyzing the total mass density data from the CHAMP satellite and the neutral composition data from TIMED/GUVI. Our extensive study by using two different thermospheric data source during the full solar cycle will provide insight to an interpretation of the source of the thermospheric wave structure.
Cho Kihyeon
Kil Hyosub
Kwak Younghee
Lee Weonjong
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