Japan Geoscience Union Meeting 2014

Presentation information

Print

Oral

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM37_30PM2] Structure and Dynamics of the Magnetosphere

Wed. Apr 30, 2014 4:15 PM - 5:30 PM 414 (4F)

Convener:*Yoshizumi Miyoshi(Solar-Terrestrial Environement Laboratory, Nagoya University), Hiroshi Hasegawa(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Chair:Yoshizumi Miyoshi(Solar-Terrestrial Environement Laboratory, Nagoya University), Shigeru Fujita(Meteorological College, Japan Meteorological Agency)

5:00 PM - 5:15 PM

[PEM37-P05_PG] Comparison between particle environment around GEO from global MHD simulation and that from LANL satellite

3-min talk in an oral session

*Tsutomu NAGATSUMA1, Kazunori YAMAMOTO1, Yasubumi KUBOTA1, Takashi TANAKA1 (1.National Institute of Information and Communications Technology)

Keywords:Space Weather Forecast, Magnetosphere, Substorm, Modeling, Global MHD simulation, Geosynchronous orbit

Substorm injection is one of the important element of magnetospheric substorm, like auroral break up. Studying substorm injection is important to understand the physics of substorms. Also, substorm injection temporaly changes the particle environment around satellites at GEO. And dynamical variations of particle environment around GEO is one of the causes of satellite anomaly due to surface charging. We try to evaluate our magnetospheric global MHD simulation code by comparing output from global MHD code and LANL satellite particle data. Previous work has be done by Nakamura [2009]. We will examine the possibility of substorm injection prediction using global MHD simulation. Detailed comparison between simulation and observation will be shown in our presentation.