Auroral current system as estimated by a magnetic inversion method

2010 Fiscal Year Self-evaluation Report

• Project/Area Number: 20540438
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Space and upper atmospheric physics
• Research Institution: Nagoya University
• Principal Investigator: IEDA Akimasa Nagoya University, 太陽地球環境研究所, 助教 (70362209)
• Project Period (FY): 2008 – 2011
• Keywords: 宇宙科学 / 宇宙空間 / 磁気圏・電離圏 / 地球電磁気 / 超高層物理学

Research Abstract

地球の電離圏では数時間に-度、オーロラが爆発的に発達する。このオーロラ爆発に関連した、電離圏・磁気圏における一連のエネルギー解放現象は、包括的にサブストームと呼ばれる。本研究ではサブストームを理解するために、地上・衛星観測データを用いた総合解析を行う。特に、地磁気逆計算法により電離圏の状態を再現し、サブストーム開始時のオーロラ電流系は東西ループであるか、南北ループであるかを明らかにする。

Research Products

• [Journal Article] Reformulation and energy flow of the Cowlingchannel (2011)
  • Author(s): Fujii, R., O. Amm, A. Yoshikawa, A. Ieda, H. Vanhamaki
  • Journal Title: J.Geophys.Res. 116 Pages: A02305, doi:10.1029/2010JA015989
  • Peer Reviewed
• [Journal Article] Pressure changes associated with substorm dipolarization in the near-Earth plasma sheet (2010)
  • Author(s): Miyashita, Y., S. Machida, A. Ieda, D. Nagata, Y. Kamide, M. Nose, K. Liou, T. Mukai, S.P. Christon, C.T. Russell, I. Shinohara, Y. Saito
  • Journal Title: J.Geophys.Res. Pages: doi:10.1029/2010JA015608
  • Peer Reviewed
• [Journal Article] Geotail observations of plasma sheetion composition over 16 years : On variations of average plasma ion mass and O+ triggering substorm model (2009)
  • Author(s): Nose, M., A. Ieda, S.P. Christon
  • Journal Title: J.Geophys.Res. 114 Pages: A07223, doi:10.1029/2009JA014203
  • Peer Reviewed
• [Journal Article] Longitudinal association between magnetotail reconnection and auroral breakup based on Geotail and Polar observations (2008)
  • Author(s): Ieda, A., D.H. Fairfield, J.A. Slavin, K. Liou, C.-I. Meng, S. Machida, Y. Miyashita, T. Mukai, Y. Saito, M. Nose, J.-H. Shue, G.K. Parks, M.O. Fillingim
  • Journal Title: J.Geophys.Res. 113 Pages: A08207, doi:10.1029/2008JA013127
  • Peer Reviewed
• [Presentation] Field-aligned currents during an intense substorm as estimated from global images and ground magnetic observations (2011)
  • Author(s): 家田章正、上出洋介、堀智明、関華奈子、三好由純、藤井良一、D. Lummerzheim、R. J. Strangeway、R. Ergun、M. O. Fillingim、K. Parks, J. P. McFadden, C. W. Carlson
  • Organizer: AGU Chapman Conference-Relationship Between Auroral Phenomenology and Magnetospheric Processes
  • Place of Presentation: Fairbanks, USA
  • Year and Date: 2011-03-01
• [Presentation] Field-aligned currents during an intense substorm as estimated from global images and ground magnetic observations (2010)
  • Author(s): 家田章正、上出洋介、堀智明、関華奈子、三好由純、藤井良一、D. Lummerzheim、R. J. Strangeway、R. Ergun、M. O. Fillingim、K. Parks, J. P. McFadden, C. W. Carlson
  • Organizer: 10th International conference on substorms
  • Place of Presentation: Pismo beach, CA, USA
  • Year and Date: 2010-03-22
• [Presentation] テミス衛星群と地上オーロラビデオとによる2008年3月のサブストーム同時観測 (2008)
  • Author(s): 家田章正、塩川和夫、堀智昭、坂口歌織、野村麗子, 中島章光、宮下幸長、藤本正樹、M. Greffen、E. Donovan、E. Spanswick、I. Mann、V.A. Angelopoulos、C.T. Russell、J.P. McFadden、C.W. Carlson、 D. Larson、S. Mende、H. Frey、K.H. Glassmeier、U. Auster
  • Organizer: 地球電磁気・地球惑星圏学会 第124回総会・講演会
  • Place of Presentation: 仙台市戦災復興記念会館(宮城県)
  • Year and Date: 2008-10-09