Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa43b1598c&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SA43B-1598
Physics
2400 Ionosphere (6929), 2427 Ionosphere/Atmosphere Interactions (0335), 2437 Ionospheric Dynamics, 2439 Ionospheric Irregularities
Scientific paper
Recently, ISUAL/FORMOSAT-2 Satellite has devoted more observation time to investigate the OI(1D) nightglow from the sideway, which provides the first comprehensive survey of 630.0nm emission in the pre- midnight sector at F layer. It is found that the OI(1D) nightglow enhancement exhibited remarkable seasonal variations. In this study, we want to highlight the following three points. First, semiannual anomaly and winter anomaly existed in the form of the brightening emission in the region of equatorial anomaly. Second, the data indicates that the tidally enhanced regions show significant longitudinal variability. Third, the latitudinal variability of OI(1D) nightglow can be contributed to both the Equatorial Ionization Anomaly (EIA) effect and the upward propagation tides.
Chang Tsao
Chen Alfred B.
Chiang Cynthia
Hsu Rue-Ron
Lin Chaney
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