Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jkas...36s.109m&link_type=abstract
Journal of the Korean Astronomical Society, vol. 36, S1, pp. S109-S115
Astronomy and Astrophysics
Astronomy
Ionosphere: Equatorial Ionosphere, Ionosphere: Satellite Observation
Scientific paper
We report the results of the ionospheric measurement obtained from the instruments on board the Korea Multi-Purpose Satellite - 1 (KOMPSAT-1). We observed a deep electron density trough in the nighttime equatorial ionosphere during the great magnetic storm on 15 July 2000. We attribute the phenomena to the up-lifted F-layer caused by the enhanced eastward electric field, while the spacecraft passed underneath the layer. We also present the results of our statistical study on the equatorial plasma bubble formation. We confirm the previous results regarding its seasonal and longitudinal dependence. In addition, we obtain new statistical results of the bubble temperature variations. The whole data set of measurement for more than a year is compared with the International Reference Ionosphere (IRI). It is seen that the features of the electron density and temperature along the magnetic equator are more prominent in the KOMPSAT-1 observations than in the IRI model.
Kim Heejun
Lee Ensang
Lee Jaejin
Min Kyoung W.
Park Jaeheung
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