2:15 PM - 2:30 PM
[PEM28-P04_PG] Temporal variation of electron density in the vicinity of the ionospheric trough
3-min talk in an oral session
*Tetsuro ISHIDA1, Yasunobu OGAWA2, Akira KADOKURA2, Keisuke HOSOKAWA3, Yuichi OTSUKA4 (1.The Graduate University for Advanced Studies, 2.National Institute of Polar Research, 3.The University of Electro-Communications, 4.Nagoya University)