日本地球惑星科学連合2025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-EM14] 太陽地球系結合過程の研究基盤形成

2025年5月28日(水) 13:45 〜 15:15 303 (幕張メッセ国際会議場)

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:野澤 悟徳(名古屋大学宇宙地球環境研究所)、山本 衛(京都大学生存圏研究所)

15:00 〜 15:15

[PEM14-18] Can deep learning more effectively reveal the link between the interplanetary environment and thermospheric mass density variations?

*Wenbo Li1Libo Liu1 (1.Institute of Geology and Geophysics, Chinese Academy of Sciences)

キーワード:thermospheric mass density, interplanetary environment, deep learning, modeling

The thermospheric mass density (TMD) is an important parameter in both space physics research and aerospace engineering applications. The state and variations of TMD are closely tied to solar-terrestrial coupling processes. We have long aimed to accurately describe TMD using modeling approaches. However, due to incomplete observations and the limitations of current modeling approaches, existing models each have their own shortcomings. It is particularly important to fully leverage the value of rare observational data and develop models that more effectively reflect the impact of the interplanetary environment on TMD. This report introduces some recent attempts we have made using deep learning (DL) techniques. With the aid of enhanced nonlinear fitting and feature mapping capabilities, we have developed a model that more accurately captures the influence of interplanetary environment conditions on TMD variations. With this DL model, we analyze the TMD disturbances during typical space weather conditions. We believe that adopting a more open-minded approach toward DL technologies will help us better discover and understand the link between TMD variations and the state of the interplanetary environment.