Physics – Geophysics
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh12a0854h&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #SH12A-0854
Physics
Geophysics
2730 Magnetosphere: Inner, 2753 Numerical Modeling, 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954), 7837 Neutral Particles (2151)
Scientific paper
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.
C:son Brandt Pontus
Ebihara Yasuhiro
Fok M.-
Higuchi Takeo
Keika Kunihiro
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