Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsa21a1527l&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #SA21A-1527
Physics
2415 Equatorial Ionosphere, 2443 Midlatitude Ionosphere
Scientific paper
This paper reports the structure of Equatorial ionization anomaly (EIA) in various longitudes, seasons and years by the GUVI limb observations on board TIMED satellite in 2002-2007. The images indicate the EIA crest is higher and much close with magnetic equator in summer hemisphere than in winter hemisphere. The limb-scanned airglow observation also shows a cavity located underneath the equatorial ionization anomaly region so called ionospheric plasma caves. The plasma cave disappears till post-sunset or evening hours in different years, depend on the evolution of the EIA and equatorial plasma fountain. The plasma cave is significantly seen between 200 and 300 km altitude by using two observation principles, radio occultation, LEO-tomography and limb-scan technique on the FORMOSAT-3/GOX, FORMOSAT-3/TBB and TIMED/GUVI satellites, respectively. The feature is also predicted by the empirical ionospheric model and the simulation model to supports the existence of the unique phenomenon.
Lee Inkyu
Lin Chaney
Liu Jinjie
Rajesh P.
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