[U-06] Evolution of New Seamless Science: From Space, Sun to the Earth Surface

[U06-P19] Observations of dynamical and chemical variations of mesosphere, thermosphere, and ionosphere at the EISCAT Tromsoe site

*Satonori NOZAWA¹, Hiroshi MIYAOKA², Shin-ichiro OYAMA¹, Yasunobu OGAWA², Masaki TSUTSUMI², Kazuo SHIOKAWA¹, Yuichi OTSUKA¹, Takuo TSUDA³, Takuya KAWAHARA⁴, Norihito SAITO⁵, Satoshi WADA⁵, Tetsuya KAWABATA¹, Hitoshi FUJIWARA⁶, Toru TAKAHASHI¹, Akira MIZUNO¹, Chris HALL⁷, Asgeir BREKKE⁸, Ryoichi FUJII¹ (1.STEL, Nagoya University, 2.NIPR, 3.The University of Electro-Communications, 4.Faculty of Engineering, Shinshu University, 5.Advanced Photonics Technology Development Group, RIKEN, 6.Faculty of Science and Technology, Seikei University, 7.Tromsoe Geophysical Observatory, The Arctic University of Tromsoe, 8.Faculty of Science, The Arctic University of Tromsoe)

Keywords:Thermosphere, Ionosphere, Mesosphere, EISCAT radar, sodium LIDAR, polar region

We will introduce our activities at Tromsoe (69.6N, 19.2E) in northern Scandinavia, and will talk about our future plan as well. The EISCAT radar system has been operated over 30 years, and Japan joined the EISCAT scientific association in 1996. Since then, Japanese scientists have used the EISCAT radars to study the polar ionosphere and thermosphere. To facilitate the activities as well as extend height and horizontal coverage of observations which lead us to study the atmospheric vertical coupling and the ionospheric currents/aurora dynamics in more detail, we have installed and operated several instruments at the EISCAT Tromsoe site. A sodium LIDAR, an MF radar, a meteor radar, an FPI, a photometer, all-sky auroral imagers, an all-sky airglow imager, satellite beacon receivers are under operation. By utilizing these instruments, we study several topics occurring in the polar mesosphere/thermosphere/ionosphere. In the near future, a millimeter wave receiver for measuring minor constituent in the stratosphere/mesosphere/lower thermosphere will be installed. Furthermore, the new EISCAT radar, so-called EISCAT_3D, is planed.