HR: 0800h
AN: SH12A-0854    [Abstracts]
TI: Application of ENA data assimilation to global modeling of space plasma environments
AU: Higuchi, T
EM: higuchi@ism.ac.jp
AF: The Institute of Statistical Mathematics, 4-6-7 Minami-Azabu, Minato, Tokyo, 106-8569, Japan
AU: Higuchi, T
EM: higuchi@ism.ac.jp
AF: Japan Science and Technology Agency, Risona-Maruha Bldg. 18F, 1-1-2 Ote-machi, Chiyoda, Tokyo, 100-0004, Japan
AU: * Nakano, S
EM: shiny@ism.ac.jp
AF: The Institute of Statistical Mathematics, 4-6-7 Minami-Azabu, Minato, Tokyo, 106-8569, Japan
AU: * Nakano, S
EM: shiny@ism.ac.jp
AF: Japan Science and Technology Agency, Risona-Maruha Bldg. 18F, 1-1-2 Ote-machi, Chiyoda, Tokyo, 100-0004, Japan
AU: Ueno, G
EM: gen@ism.ac.jp
AF: The Institute of Statistical Mathematics, 4-6-7 Minami-Azabu, Minato, Tokyo, 106-8569, Japan
AU: Ueno, G
EM: gen@ism.ac.jp
AF: Japan Science and Technology Agency, Risona-Maruha Bldg. 18F, 1-1-2 Ote-machi, Chiyoda, Tokyo, 100-0004, Japan
AU: Ebihara, Y
EM: ebihara@stelab.nagoya-u.ac.jp
AF: Institute for Advanced Research, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464- 8601, Japan
AU: Fok, M
EM: mei-ching.h.fok@nasa.gov
AF: NASA Goddard Space Flight Center, NASA GSFC, Code 673, Greenbelt, MD 20771, United States
AU: Ohtani, S
EM: Shin.Ohtani@jhuapl.edu
AF: The Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723-6099, United States
AU: Brandt, P C
EM: pontus.brandt@jhuapl.edu
AF: The Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723-6099, United States
AU: Mitchell, D G
EM: don.mitchell@jhuapl.edu
AF: The Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD 20723-6099, United States
AU: Keika, K
EM: kunihiro.keika@oeaw.ac.at
AF: Space Research Institute, Austrian Academy of Sciences, Schmiedlstrasse 6, Graz, A- 8042, Austria
AB: Data assimilation is a technique which combines information of observations and our knowledge about physical laws described by a simulation model, and it offers a general framework for providing a best estimate of the system state based on both of observations and physical consistency. Data assimilation techniques have been originally developed for applications in meteorology, and those framework are applicable to various dynamical systems in geophysics. We are developing a data assimilation scheme which incorporates ENA observations from IMAGE/HENA into a kinetic ring current model in order to obtain a realistic model of the ring current evolution. We outline this data assimilation scheme, and we will also discuss how ENA data assimilation is effective for modeling studies concerning space plasma.
DE: 2730 Magnetosphere: inner
DE: 2753 Numerical modeling
DE: 2778 Ring current
DE: 2788 Magnetic storms and substorms (7954)
DE: 7837 Neutral particles (2151)
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting