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2008 Fiscal Year Annual Research Report

宇宙天気予報の基礎研究

Research Project

Project/Area Number 17GS0208
Research InstitutionKyoto University

Principal Investigator

柴田 一成  Kyoto University, 理学研究科, 教授 (70144178)

Co-Investigator(Kenkyū-buntansha) 関井 隆  国立天文台, 太陽天体プラズマ研究部, 准教授 (20332158)
草野 完也  海洋開発研究機構, 地球シミュレータセンター, プログラムディレクター (70183796)
藤木 謙一  名古屋大学, 太陽地球環境研究所, 助教 (20303597)
荻野 竜樹  名古屋大学, 太陽地球環境研究所, 教授 (00109274)
鵜飼 正行  愛媛大学, 宇宙進化研究センター, 教授 (10036444)
Keywords太陽 / 太陽風 / 地球磁気圈 / 電離圏 / 宇宙天気 / プラズマ / スペース / 天文
Research Abstract

1.太陽エネルギー解放過程の研究:京人飛騨天文台では、故障により観測が中断していたSMART望遠鏡の太陽ベクトル磁場全面観測を復活させた。定常観測の復活によって得られた磁場データ保存用のRAIDシステムを導入し、データはインターネットを介して世界の宇宙天気研究に公開を開始した。国立天文台「ひので」チームは、今年度は一連のワークショップや共同利用計算機の運営を通じて、データが広いコミュニティで活用される様、努力した。理論グループは、2006年12月13日に発生した大規模フレアに起因する一連の宇宙天気現象を再現するための包括的なモデリングの開発を行った。特に、ひので観測データに基づいて、フレア発生活動領域の3次元コロナ磁場を再構成すると共に、これを元にしたフレア発生のMHDシミュレーションを実施した。
2.惑星間シンチレーション観測による太陽風モデルの構築:H19年度太陽圏イメージング装置が完成、H20年度から試験観測に移行し性能評価を行い、H2O年度9月より定常観測を開始した。その結果、同装置による観測電波源の数を倍増することに成功した。またIPS観測を用いた宇宙天気予報の精度を定量的に評価し、予報プログラムの改良に収り組んだ。
3.リアルタイム観測と宇宙天気図モデリング:電離圏電位・電流の宇宙天気図をリアルタイム(5分〜10分毎)で作った。また、計算機実験で再現されたコーラス放射の発生機構を理論的に解明した。
4.バーチャル観測所:高速磁気リコネクションモデルを応用し、地球磁気圏サブストーム現象に伴うカレントウェッジ発生現象を説明し、地球に向かう高速流の観測結果をシミュレーション領域に配置した仮想衛星によって実証した。

  • Research Products

    (35 results)

All 2008 Other

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (15 results) Remarks (1 results)

  • [Journal Article] Chromospheric Anemone Jet Observed with Hinode and Comparison with Magnetohydrodynamic Simulations: Evidence of Propagating Alfve'n Waves and Magnetic Reconnection2008

    • Author(s)
      Nishizuka, N.
    • Journal Title

      The Astrophysical Journal Letters 683

      Pages: L83-L86

    • Peer Reviewed
  • [Journal Article] The Correlation among the Rise Velocity of a Soft X-Ray Loop, the Ejection Velocity of a Plasmoid, and the Height above the Loop Top of the Hard X-Ray Source in Masuda Type Flares, and Its Interpretation Based on the Reconnection Model of Flares2008

    • Author(s)
      Shimizu, M.
    • Journal Title

      The Astrophysical Journal Letters 683

      Pages: L203-L206

    • Peer Reviewed
  • [Journal Article] Condition for substorm onset by the fast reconnection mechanism2008

    • Author(s)
      Ugai, M.
    • Journal Title

      Annales Geophysicee 26

      Pages: 3875-3883

    • Peer Reviewed
  • [Journal Article] The dawn-dusk asymmetry of energetic electron in the Earth's magnetotail: Observation and transport models2008

    • Author(s)
      Imada, S.
    • Journal Title

      Journal of Geophysical Research 113

      Pages: A11201-A11201-13

    • Peer Reviewed
  • [Journal Article] The evolution of fast reconnection in a three-dimensional current sheet system2008

    • Author(s)
      Ugai, M.
    • Journal Title

      PHYSICS OF PLASMAS 15

      Pages: 082306-082306-10

    • Peer Reviewed
  • [Journal Article] Simulation Study of the Symmetry-Breaking Instability and the Dipole Field Reversal in a Rotating Spherical Shell Dynamo2008

    • Author(s)
      Nishikawa, N.
    • Journal Title

      PHYSICS OF PLASMAS 15

      Pages: 082903-082903-15

    • Peer Reviewed
  • [Journal Article] Spectra Polarimetrio Observation of an Emerging Flux Region:Triggering-Mechanism of Ellerman Bombs2008

    • Author(s)
      Watanabe, H.
    • Journal Title

      The Astrophysical Journal 684

      Pages: 736-746

    • Peer Reviewed
  • [Journal Article] Properties of high-degree oscillation modes of the Sun observed with Hinode/SOT2008

    • Author(s)
      Mitra-Kraev, U.
    • Journal Title

      Astronomy & Astrophysics 481

      Pages: L1-L4

    • Peer Reviewed
  • [Journal Article] Theory and simulation of the generation of whistler-mode chorus2008

    • Author(s)
      Omura, Y.
    • Journal Title

      Journal of Geophysical Research 113

      Pages: A04223-A04223-14

    • Peer Reviewed
  • [Journal Article] Relativistic turning acceleration of radiation belt electrons by whistler mode chorus2008

    • Author(s)
      Furuya, N.
    • Journal Title

      Journal of Geophysical Research 113

      Pages: A04224-A04224-10

    • Peer Reviewed
  • [Journal Article] A quantitative MHD study of the relation among arcade shearing, flux rope formation, and eruption due to the tearing instability2008

    • Author(s)
      Shiota, D.
    • Journal Title

      Journal of Geophysical Research 113

      Pages: A03S05

    • Peer Reviewed
  • [Journal Article] Impulsive chromospheric heating of two-ribbon flares by the fast reconnection mechanism2008

    • Author(s)
      Ugai, M.
    • Journal Title

      Physics of Plasma 15

      Pages: 032902-032902-9

    • Peer Reviewed
  • [Journal Article] RSS1. 0を利用した科学衛星・地上観測のメタデータ自動収集2008

    • Author(s)
      石倉諭
    • Journal Title

      電子情報通信学会論文誌 J91

      Pages: 499-509

    • Peer Reviewed
  • [Journal Article] Emergence of a Helical Flux Rope Under an Active Region Prominence2008

    • Author(s)
      Okamoto, T. J.
    • Journal Title

      The Astrophysical Journal Letters 673

      Pages: L215-L218

    • Peer Reviewed
  • [Journal Article] Ultra-relativistic acceleration of electrons in planetary magnetospheres2008

    • Author(s)
      Summers, D.
    • Journal Title

      Geophysical Research Letters 34

      Pages: L24205

    • Peer Reviewed
  • [Journal Article] Numerical studies on three dimensional earthward fast plasma flows in the near-Earth plasma sheet by the spontaneous fast reconnection model2008

    • Author(s)
      Kondoh, K.
    • Journal Title

      Journal of Geophysical Research 113

      Pages: A03S07

    • Peer Reviewed
  • [Journal Article] Hot and Cool Plasmoid Ejections Associated with Solar Flare2008

    • Author(s)
      Ohyama, M.
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 85-93

    • Peer Reviewed
  • [Journal Article] Characteristics of Anemone Active Regions Appearing in Coronal Holes Observed with Yohkoh Soft X-ray Telescope2008

    • Author(s)
      Asai, A.
    • Journal Title

      The Astrophysical Journal 673

      Pages: 1188-1193

    • Peer Reviewed
  • [Journal Article] Plasma ejections and shock waves in the solar atmosphere2008

    • Author(s)
      Magara, T.
    • Journal Title

      Journal of Atmospheric and Solar-Terrestrial Physics 70

      Pages: 546-554

    • Peer Reviewed
  • [Presentation] Three-dimensional instability of spontaneous fast magnetic reconnection2008

    • Author(s)
      Shimizu T.
    • Organizer
      AGU Fall Meeting in San Francisco, SM21B-06
    • Place of Presentation
      San Francisco
    • Year and Date
      2008-12-17
  • [Presentation] Theoretical Models of Flares2008

    • Author(s)
      Shibata, K
    • Organizer
      Evershed Meeting
    • Place of Presentation
      Bangalore, India
    • Year and Date
      2008-12-05
  • [Presentation] Multi-scale Modeling of Solar Terrestrial Environment System2008

    • Author(s)
      Kusano, K
    • Organizer
      the International Symposium Fifty Years after IGY- Modern Information Technologies and Earth and Solar Sciences
    • Place of Presentation
      つくば
    • Year and Date
      2008-11-10
  • [Presentation] Jet, jet, jet2008

    • Author(s)
      Shibata, K
    • Organizer
      Flux Emergence Workshop 2008
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2008-10-08
  • [Presentation] High-resolution Helioseismic Observations2008

    • Author(s)
      Sekii, T.
    • Organizer
      Second Hinode Science Meeting
    • Place of Presentation
      Boulder CO, USA
    • Year and Date
      2008-10-02
  • [Presentation] Ubiquitous Magnetic Reconnection in the Solar Atmosphere2008

    • Author(s)
      Shibata, K
    • Organizer
      Second Hinode Science Meeting Beyond Discovery-Toward Understanding
    • Place of Presentation
      Boulder, Colorado, USA
    • Year and Date
      2008-09-30
  • [Presentation] STUDY OF THE INITIATION MECHANISM AND THE PREDICTABILITY OF SOLAR ERUPTION BASED ON DATA-DRIVEN SIMULATION2008

    • Author(s)
      Kusano, K
    • Organizer
      ICPP2008
    • Place of Presentation
      福岡
    • Year and Date
      2008-09-08
  • [Presentation] New Aspect of the Sun from Hinode Observations2008

    • Author(s)
      Shihata, K
    • Organizer
      IAU Asia Pacific Regional Meeting
    • Place of Presentation
      Yunnan, China
    • Year and Date
      2008-08-04
  • [Presentation] Multiscale Interlocked Simulation of Solar Eruption2008

    • Author(s)
      Kusano, K
    • Organizer
      COSPAR2008
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2008-07-13
  • [Presentation] Latest View of the Sun and International. Collaboration Project on Solar Observations-CHAIN project and FMT2008

    • Author(s)
      Shibata, K
    • Organizer
      International Workshop on NEW ASTRONOMICAL FACILITIES IN PERU In honor to Mutsumi Ishitsuka
    • Place of Presentation
      Ica University, Peru
    • Year and Date
      2008-06-30
  • [Presentation] Ubiquitous Reconnection in the Solar Atmosphere2008

    • Author(s)
      Shibata, K.
    • Organizer
      in the session ST10 of the 2008 AOGS Meeting, Complexity and Self-organization in Solar, Magnetospheric and Heliospheric Phenomena
    • Place of Presentation
      Pusan, Korea
    • Year and Date
      2008-06-17
  • [Presentation] Three dimensional configuration of earthward fast flow and the temporal variations2008

    • Author(s)
      Kondoh, K.
    • Organizer
      9th International Conference on Substorms
    • Place of Presentation
      Graz, Austria
    • Year and Date
      2008-05-07
  • [Presentation] Conditions for substorm onset by the fast reconnection mechanism2008

    • Author(s)
      Ugai, M.
    • Organizer
      9th International Conference on Substorms
    • Place of Presentation
      Graz, Austria
    • Year and Date
      2008-05-05
  • [Presentation] Jets, Plasmoid Ejections, and Fractal Reconnection in Solar Flares2008

    • Author(s)
      Shibata, K.
    • Organizer
      7th Annual International Astrophysics Conference "Particle Acceleration And Transport in the Heliosphere and Beyond"
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2008-03-09
  • [Presentation] Magnetic Reconnection in Solar Plasmas2008

    • Author(s)
      Shibata, K.
    • Organizer
      The US-Japan Workshop on Magnetic Reconnection (MR2008)
    • Place of Presentation
      Okinawa, Japan
    • Year and Date
      2008-03-05
  • [Remarks]

    • URL

      http://www.kwasan.kyoto-u.ac.jp/spw/

URL: 

Published: 2010-06-11   Modified: 2016-04-21  

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