JpGU-AGU Joint Meeting 2017

講演情報

[EE]Eveningポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM17] [EE] Recent Advances in Ionosphere Observation and Modeling for Monitoring and Forecast

2017年5月22日(月) 17:15 〜 18:30 ポスター会場 (国際展示場 7ホール)

[PEM17-P01] Observations of medium scale traveling ionospheric disturbances (MSTIDs) using the ground-based GNSS networks around Taiwan

*Charles Lin1Chia-Hung Chen1Yu-Ting Chou1Jia-Ting Lin1P. K. Rajesh1 (1.Department of Earth Science, National Cheng Kung University)

キーワード:ionosphere, GNSS observations, Medium scale travel ionospheric disturbances

Using a network of ground-based GNSS receivers, medium-scale travelling ionospheric disturbances (MSTIDs) at the low-latitude equatorial ionization anomaly region is studied during 2013-2015. An algorithm using two-dimensional fast Fourier transform is developed to automatically identify the appearance of MSTIDs. Results show that the northward propagation of MSTID is predominated in daytime hours during April-July and in nighttime during March-August. On the other hand, southward MSTIDs are dominated in January-February and November-December in both daytime and nighttime. The statistical analysis of northward and southward propagations of MSTIDs at low-latitude reported here will be useful to understand its underlying physics.