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http://dx.doi.org/10.7780/kjrs.2014.30.2.14

Determination of Ionospheric Delay Scale Factor for Low Earth Orbit using the International Reference Ionosphere Model  

Kim, Jeongrae (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Kim, Mingyu (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
Publication Information
Korean Journal of Remote Sensing / v.30, no.2, 2014 , pp. 331-339 More about this Journal
Abstract
Determination of an ionospheric delay scale factor, which converts ground-based ionospheric delay into low Earth orbit ionospheric delay, using the international reference ionosphere model is proposed. Ionospheric delay from international GNSS service model combined with IRI-derived scale factor is evaluated with NASA GRACE satellite data. At approximately 480km altitude, mean and standard deviation of the scale factor are 0.25 and 0.01 in 2004. The scale factor reaches high in night time and Spring and Fall seasons. Ionospheric delay error by the proposed method has a mean of 3.50 TECU in 2004.
Keywords
Low Earth orbit; Ionosphere; ionospheric delay scale factor;
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