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2009 Fiscal Year Final Research Report

Quantitative modeling of the inner magnetospheric environment using data assimilation

Research Project

  • PDF
Project/Area Number 19740306
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Space and upper atmospheric physics
Research InstitutionThe Institute of Statistical Mathematics

Principal Investigator

NAKANO Shin'ya  The Institute of Statistical Mathematics, モデリング研究系, 助教 (40378576)

Project Period (FY) 2007 – 2009
Keywords地球惑星磁気圏・磁気嵐 / リングカレント / データ同化
Research Abstract

We have developed a data assimilation technique for incorporating in-situ data of the ring current plasma obtained by multiple spacecraft into a kinetic numerical simulation model. Under the conditions that the spacecraft are sufficiently distributed, general features in the distributions of plasma and electric potential are well reconstructed. We have also developed a data assimilation technique for modeling the plasmasphere using ultra-violet imaging data.

  • Research Products

    (6 results)

All 2009 2008 2007

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results)

  • [Journal Article] Estimation of a long-term variation of a magnetic- storm index using the merging particle filter2009

    • Author(s)
      S. Nakano, T. Higuchi
    • Journal Title

      IEICE Transactions on Information and Systems v.E92-D

      Pages: 1382-1387

    • Peer Reviewed
  • [Journal Article] A method for estimating the ring current structure and the electric potential distribution using ENA data assimilation2008

    • Author(s)
      S. Nakano, G. Ueno, Y. Ebihara, M. -C. Fok, S. Ohtani, P.C. Brandt, D.G. Mitchell, K. Keika, T. Higuchi
    • Journal Title

      Journal of Geophysical Research v.113

      Pages: A05208

    • URL

      doi:10.1029/2006JA011853

    • Peer Reviewed
  • [Journal Article] Merging particle filter for sequential data assimilation2007

    • Author(s)
      S. Nakano, G. Ueno, T. Higuchi
    • Journal Title

      Nonlinear Processes in Geophysics v.14

      Pages: 395-408

    • Peer Reviewed
  • [Presentation] A data assimilation method for plasmasphere modeling using EUV imaging data2009

    • Author(s)
      S. Nakano, M. -C. Fok, P.C. Brandt, T. Higuchi
    • Organizer
      AGU 2009 Fall Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      20091200
  • [Presentation] Monthly-scale variation of the Dst index and its relationship with solar-wind conditions2009

    • Author(s)
      S. Nakano, T. Higuchi
    • Organizer
      IAGA 2009 Scientific Assembly
    • Place of Presentation
      Sopron, Hungary
    • Year and Date
      20090800
  • [Presentation] A feasibility study of ring current modeling using data assimilation of multi-satellite observations2008

    • Author(s)
      S. Nakano, G. Ueno, Y. Ebihara, M. -C. Fok, T. Higuchi
    • Organizer
      AOGS 5th Annual General Meeting, Busan
    • Place of Presentation
      the Republic of Korea
    • Year and Date
      20080600

URL: 

Published: 2011-06-18   Modified: 2016-04-21  

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