日本地球惑星科学連合2021年大会

講演情報

[E] 口頭発表

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-EM13] 太陽地球系結合過程の研究基盤形成

2021年6月4日(金) 10:45 〜 12:15 Ch.05 (Zoom会場05)

コンビーナ:山本 衛(京都大学生存圏研究所)、小川 泰信(国立極地研究所)、野澤 悟徳(名古屋大学宇宙地球環境研究所)、吉川 顕正(九州大学大学院理学研究院地球惑星科学部門)、座長:山本 衛(京都大学生存圏研究所)、野澤 悟徳(名古屋大学宇宙地球環境研究所)

10:45 〜 11:00

[PEM13-01] Study of coupling processes in the solar-terrestrial system =Current status in 2021=

*山本 衛1、橋口 浩之1、横山 竜宏1、宮岡 宏2、小川 泰信2、塩川 和夫3、野澤 悟徳3、吉川 顕正4、津田 敏隆1 (1.京都大学生存圏研究所、2.国立極地研究所、3.名古屋大学宇宙地球環境研究所、4.九州大学大学院理学研究院)

キーワード:マスタープラン、赤道MUレーダー、EISCAT_3Dレーダー、国際観測網、IUGONET

Energy from the sun is divided into radiation and solar wind (high-speed particles), which are maximum at the equatorial and polar regions, respectively. We study the flow of the energy and materials in the whole atmosphere by establishing following two large atmospheric radars at these singular points, and global observation network.

(1) Equatorial fountain
The energy and material flows that occur in all height regions of the equatorial atmosphere are named as "Equatorial Fountain." These processes from the bottom also cause various effects in the upper atmosphere. We establish Equatorial MU Rdar (EMU radar) in Indonesia as main instrument for the studies.

(2) Energy inputs into polar upper atmosphere and its response
The energy/particle inflow results in auroral Joule heating and ion drag of the atmosphere. The ion outflow from the polar ionosphere controls ambient plasma constituents in the magnetosphere. We will contribute the international EISCAT_3D radar project that has started in northern Scandinavia since 2017.

(3) Global network of observation and data
We develop a global observation network of compact radio and optical remote sensing equipment from the equator to polar region. Data from the observations will be archived and utilized by the data exchange framework of IUGONET.

This project was continuously selected as one of important projects in Masterplan 2014, 2017, and 2020. In the presentation we also discuss science that should be addressed in relation this program.