Japan Geoscience Union Meeting 2015

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Oral

Symbol M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI37] Earth and planetary informatics with huge data management

Thu. May 28, 2015 11:00 AM - 12:45 PM 203 (2F)

Convener:*Eizi TOYODA(Numerical Prediction Division, Japan Meteorological Agency), Mayumi Wakabayashi(Kiso-Jiban Consultants Co.,Ltd), Susumu Nonogaki(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Eizi TOYODA(Numerical Prediction Division, Japan Meteorological Agency), Ken T. Murata(National Institute of Information and Communications Technology), Junya Terazono(The University of Aizu), Tomoaki Hori(Nagoya University Solar Terrestrial Environment Laboratory Geospace Research Center), Kazuo Ohtake(Japan Meteorological Agency), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University), Chair:Eizi TOYODA(Numerical Prediction Division, Japan Meteorological Agency), Mayumi Wakabayashi(Kiso-Jiban Consultants Co.,Ltd)

12:30 PM - 12:45 PM

[MGI37-23] A Parametric Sensitivity Study for the Global MHD Simulation Model by Using Large-Scale Data Analysis and Visualization

*Satoko SAITA1, Shigeru FUJITA2, Akira KADOKURA3, Takashi TANAKA4, Akira sessai YUKIMATU3, Yoshimasa TANAKA3, Shinichi OHTANI5, Ken T. MURATA6, Tomoyuki HIGUCHI7 (1.National Institute of Technology, Kitakyushu College, 2.Meteorological College, Japan Meteorological Agency, 3.National Institute of Polar Research, 4.International Center for Space Weather Science and Education, Kyushu University, 5.The Johns Hopkins University Applied Physics Laboratory, 6.National Institute of Information and Communications Technology, 7.The Institute of Statistical Mathematics)

Keywords:global MHD simulation, sensitivity analysis, ionospheric electric field potential map, aurora, ionospheric conductivity, field-aligned current

The Magnetosphere-Ionosphere (M-I) boundary condition in the global MHD simulation (Tanaka, 2010) includes insufficient factors for the M-I coupling process, so that we have to calibrate the global MHD simulation model considering parametric uncertainty in the M-I coupling process.
For statistical analysis and visualization, case studies have been done for the global MHD simulation.
We need computational techniques to analyze simulated and observed data simultaneously. However, the amount of simulation data with high spatial and temporal resolution is very large.
Therefore in this study, we compare the ionospheric E x B plasma drift obtained from the global MHD simulation and that obtained from the SuperDARN HF Radar Network.
The simulated plasma drift are not always reproducible under a southward interplanetary magnetic (IMF) condition.
In today's presentation, we show latest results of a parameteric study of the global MHD simulation and demonstrate the evaluation of the reliability and validity of M-I coupling process in the global MHD Simulation.

References:
Tanaka, T., A. Nakamizo, A. Yoshikawa, S. Fujita, H. Shinagawa, H. Shimazu, T. Kikuchi, and K. K. Hashimoto (2010), Substorm convection and current system deduced from the global simulation, J. Geophys. Res., 115, A05220, doi:10.1029/2009JA014676