C.C. Lee

TL;DR: In this paper, the authors collected the global ionosonde measurements of the F2 layer critical frequency (foF2), E layer critical frequencies (foE), and F layer virtual height (h′F) and the total electron content (TEC) maps produced by the Jet Propulsion Laboratory, which were retrieved from dual-frequency GPS receivers distributed worldwide, to investigate the ionospheric phenomena during solar minimum of cycle 23/24, particularly the difference in the ionosphere between solar minima of cycle 3/24 and the preceding cycles.

TL;DR: In this article, the authors used the measurements of the Jicamarca digisonde to examine the variations in F2 layer peak electron density (NmF2), its height (hmF2) and the thickness parameter (B0) near the dip equator.

TL;DR: In this paper, the effects of the pre-reversal enhancement (PRE) in ExB drift, the asymmetry (Ia) of equatorial ionization anomaly (EIA), and the magnetic activity (Kp) on the generation of Equatorial Spread F (ESF) were investigated.

TL;DR: In this article, the authors analyzed Jicamarca ionograms to study the quiet condition variations in the peak electron density (NmF2), its height (hmF2) and F2-layer thickness parameter (B0) of the equatorial F2 layer during solar minimum.

TL;DR: In this paper, the authors presented the observed ionospheric F-region critical frequency, foF2, and peak height, hmF2 at the northern crest of equatorial ionization anomaly (EIA) area station, namely Chung-Li (24.9°N, 121.1°E, dip 35°), and compared with International Reference Ionosphere model (IRI-2001) predictions for the period from 1994 to 1999, corresponding to half of the 23rd solar cycle.