日本地球惑星科学連合2019年大会

講演情報

[E] 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-EM09] Vertical coupling in the atmosphere and Ionosphere

2019年5月29日(水) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:Liu Huixin(九州大学理学研究院地球惑星科学専攻 九州大学宙空環境研究センター)、Chang Loren(Institute of Space Science, National Central University)、大塚 雄一(名古屋大学宇宙地球環境研究所)

[PEM09-P07] VIPIR ionospheric observations in Japan

*津川 卓也1前野 英生1西岡 未知1近藤 巧1石井 守1 (1.情報通信研究機構)

キーワード:電離圏、イオノゾンデ、宇宙天気

National Institute of Information and Communications Technology (NICT) has observed ionosphere by ionosondes more than 70 years in Japan. At present, four ionosondes at Wakkanai (Sarobetsu), Kokubunji, Yamagawa, Okinawa (Ogimi) are automatically operated and controlled from Tokyo. Major ionospheric parameters such as foF2 and foEs are scaled from the ionograms automatically on a realtime basis and scaled manually for the final values. These scaled parameters are provided through our web site (http://wdc.nict.go.jp/IONO/). In 2017, we replaced the 10C ionosondes with Vertical Incidence Pulsed Ionospheric Radar 2 (VIPIR2) which can separate the O- and X-modes of ionospheric echoes which have improved the availability of automatic scaling of the ionogram. Our automatic scaling method has been improved using new O- and X-modes separated ionograms. As for future plans, we try to expand observation area by oblique sounding observations with VIPIRs in Japan and neighboring countries. We have also tried to detect arrival directions of ionospheric echo by using the 8ch receiving data as a interferometry. In this presentation, we will introduce current status and future plans of ionospheric observation in NICT.