Electron density profiles in the equatorial ionosphere observed by the FORMOSAT-3/COSMIC and a digisonde at Jicamarca

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/52743

Title:	Electron density profiles in the equatorial ionosphere observed by the FORMOSAT-3/COSMIC and a digisonde at Jicamarca
Authors:	Liu,JY;Lee,CC;Yang,JY;Chen,CY;Reinisch,BW
Contributors:	物理學系
Date:	2010
Issue Date:	2012-06-11 10:42:27 (UTC+8)
Publisher:	國立中央大學
Abstract:	We examine for the first time the ionospheric electron density profiles concurrently observed by the GPS occultation experiment (GOX) onboard the FORMOSAT-3/COSMIC (F3/C) and the ground-based digisonde portable sounder DPS-4 at Jicamarca (12A degrees S, 283A degrees W, 1A degrees N geomagnetic) in 2007. Our results show that the F3/C generally underestimates the F2-peak electron density NmF2 and the F2-peak height hmF2. On the other hand, when the equatorial ionization anomaly (EIA) pronouncedly appears during daytime, the total electron content (TEC) derived from the radio occultation of the GPS signal recorded by the F3/C GOX is significantly enhanced. This results in the NmF2 at Jicamarca being overestimated by the Abel inversion on the enhanced TEC during the afternoon period.
Relation:	GPS SOLUTIONS
Appears in Collections:	[Department of Physics] journal & Dissertation

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