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A Study of quarter-wave mode standinf Alfven waves using data from a new magnetometer array in New Zealand

Research Project

Project/Area Number 24740333
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Space and upper atmospheric physics
Research InstitutionOsaka Electro-Communication University

Principal Investigator

OBANA Yuki  大阪電気通信大学, 工学部, 講師 (50398096)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords磁気圏ー電離圏結合 / プラズマ圏 / 空洞共鳴 / 磁力線共鳴 / ULF波 / 国際情報交換 / 磁気圏-電離圏結合 / 磁力線共鳴振動 / ULF波動 / 地磁気脈動 / 磁気圏-電離圏結合 / 海外学術調査
Outline of Final Research Achievements

In order to examine the resonance structure of quarter-wave mode standing Alfven waves, we constructed a new magnetometer array in New Zealand and data from this array were analyzed. Four events are discussed which show extraordinarily low eigenfrequencies, wide resonance widths, and strong damping when the ionosphere above New Zealand was in darkness while the conjugate northern hemisphere ionosphere was sunlit. The wide resonance width and the strong damping of the quarter-wave mode arise from strong energy dissipation in the dark side ionosphere. One event exhibited field line resonance structure continuously through a transition from very low frequency to the normal daytime values. The frequency change began when the dawn terminator passed over New Zealand and finished one hour later. These experimental results were compared with the ULF wave fields obtained from a 2.5-dimensional simulation model.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (21 results)

All 2015 2014 2013 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (18 results) Remarks (1 results)

  • [Journal Article] CDF data archive and integrated data analysis platform for ERG-related ground data developed by ERG Science Center (ERG-SC)2015

    • Author(s)
      Hori, T., Y. Miyashita, Y. Miyoshi, K. Seki, T. Segawa, Y.-M. Tanaka, K. Keika, M. Shoji, I. Shinohara, K. Shiokawa, Y. Otsuka, S. Abe, A. Yoshikawa, K. Yumoto, Y. Obana, N. Nishitani, A. S. Yukimatu, T. Nagatsuma, M. Kunitake, K. Hosokawa, Y. Ogawa, K. T. Murata, M. Nose, H. Kawano, and T. Sakanoi
    • Journal Title

      J. Space Sci. Info. Jpn

      Volume: JAXA-RR-14-009 Pages: 75-89

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resonance Structure and Mode Transition of Quarter-Wave ULF Pulsations Around the Dawn Terminator2015

    • Author(s)
      Y. Obana, C. L. Waters, M. D. Sciffer, F. W. Menk, R. L. Lysak, K. Shiokawa, A. W. Hurst, T. Petersen
    • Journal Title

      J. Geophys. Res. - Space Physics

      Volume: 不明 Issue: 6 Pages: 4194-4212

    • DOI

      10.1002/2015ja021096

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Latitudinal Distribution of Quarter-Wave Length Standing Alfvén Modes2015

    • Author(s)
      Y. Obana, F. W. Menk, C. L. Waters, M. D. Sciffer, R. L. Lysak, M. B. Moldwin, I. R. Mann, D. Boteler, V. Angelopoulos, and C. T. Russell
    • Organizer
      26th General Assembly of the International Union of Geodesy and Geophysics
    • Place of Presentation
      Prague, Czech Republic, Prague Congress Centre
    • Year and Date
      2015-06-22 – 2015-07-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] Quarter Waves Localized in the Plasmasphere2015

    • Author(s)
      Y. Obana, F. W. Menk, C. L. Waters, M. D. Sciffer, R. L. Lysak, M. B. Moldwin, I. R. Mann, D. Boteler, V. Angelopoulos, and C. T. Russell
    • Organizer
      Japan Geoscience Union Meeting 2015
    • Place of Presentation
      千葉県千葉市、幕張メッセ国際会議場
    • Year and Date
      2015-05-24 – 2015-05-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] ULF波動を用いたプラズマ圏密度診断:自動化プログラムによる初期解析結果2015

    • Author(s)
      尾花由紀, 能勢正仁
    • Organizer
      統計数理研究所共同研究集会「電離圏・磁気圏モデリングとデータ同化」
    • Place of Presentation
      東京都立川市、統計数理研究所
    • Year and Date
      2015-01-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] ERGプロジェクトにおける連携地上観測ネットワーク2015

    • Author(s)
      塩川和夫, 藤井良一, 橋本久美子, 細川敬祐, 石井守, 門倉昭, 河野英昭, 菊池崇, 北村健太郎, 三好由純, 長妻努, 西谷望, 尾花由紀, 小川泰信, 大矢浩代, 岡田雅樹, 大塚雄一, 尾崎光紀, 佐藤夏雄, 篠原学, 田所裕康, 田口真, 田中良昌, 谷森達, 土屋史紀, 山岸久雄, 吉川顕正, 行松彰, 湯元清文
    • Organizer
      宇宙科学シンポジウム
    • Place of Presentation
      神奈川県相模原市、宇宙科学研究所
    • Year and Date
      2015-01-06 – 2015-01-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] 北海道HFレーダーとニュージーランド地磁気観測データによるULF波動の同時観測2014

    • Author(s)
      尾花由紀, 西谷望, 堀智昭, 寺本万里子, 能勢正仁, 吉川顕正
    • Organizer
      平成26年度中緯度短波レーダー研究会
    • Place of Presentation
      愛知県名古屋市、名古屋大学
    • Year and Date
      2014-11-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] An automated procedure of sounding of the plasmasphere by the CRUX magnetometer array in New Zealand2014

    • Author(s)
      Yuki Obana and Masahito Nosé
    • Organizer
      第136回 地球電磁気・地球惑星圏学会 総会・講演会
    • Place of Presentation
      長野県松本市、キッセイ文化ホール
    • Year and Date
      2014-10-31 – 2014-11-03
    • Related Report
      2014 Annual Research Report
  • [Presentation] Characteristics of quarter wave standing Alfven waves observed by the New Zealand magnetometer array2014

    • Author(s)
      Yuki Obana, Colin L. Waters, Murray D. Sciffer, Gareth Sciffer, Frederick W. Menk, Robert L. Lysak
    • Organizer
      Chapman Conference on Low-Frequency Waves in Space Plasmas
    • Place of Presentation
      Jeju Isl, Korea, Hyatt Regency Jeju Isl
    • Year and Date
      2014-08-31 – 2014-09-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] A Study of Ionospheric Pc 4 Plasma Oscillation Observed by the Hokkaido HF Radar and its Comparison with Geomagnetic Pulsation on the Ground2014

    • Author(s)
      Yuki Obana, Nozomu Nishitani, Tomoaki Hori, Mariko Teramoto, Masahito Nose, Akimasa Yoshikawa
    • Organizer
      Asia Oceania Geosciences Society 11th Annual Meeting
    • Place of Presentation
      北海道札幌市、ロイトン札幌ホテル
    • Year and Date
      2014-07-28 – 2014-08-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] Mode Transfer from Quarter-Wave to Half-Wave Modes of Standing Alfven Waves Around the Dawn Terminator2014

    • Author(s)
      Y. Obana, C. L. Waters, M. D. Sciffer, G. Sciffer, F. W. Menk, and R. L. Lysak
    • Organizer
      Asia Oceania Geosciences Society 11th Annual Meeting
    • Place of Presentation
      北海道札幌市、ロイトン札幌ホテル
    • Year and Date
      2014-07-28 – 2014-08-01
    • Related Report
      2014 Annual Research Report
  • [Presentation] 北海道HFレーダーと地上磁場におけるPc 4脈動の同時観測研究2014

    • Author(s)
      Y. Obana, N. Nishitani, T. Hori, M. Teramoto, M. Nose, and A. Yoshikawa
    • Organizer
      日本地球惑星科学連合2014年大会
    • Place of Presentation
      神奈川県横浜市、パシフィコ横浜
    • Year and Date
      2014-04-28 – 2014-05-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] Characteristics of Quarter-Wave ULF Pulsations around the dawn terminator2013

    • Author(s)
      Y. Obana, F. W. Menk, C. L. Waters, M. D. Sciffer, A. Yoshikawa, F. Honary, M. B. Moldwin, I. R. Mann, D. Boteler, V. Angelopoulos, and C. T. Russell
    • Organizer
      Asia Oceania Geoscience Society (AOGS) 10th Annual Meeting
    • Place of Presentation
      Brisbane, Australia
    • Related Report
      2013 Research-status Report
  • [Presentation] Modelling ULF Quarter-wave modes2013

    • Author(s)
      G. D. Sciffer, C. L. Waters, M. D. Sciffer, Y. Obana
    • Organizer
      the 13th Australian Space Science Conference (ASSC)
    • Place of Presentation
      Sydney, Australia
    • Related Report
      2013 Research-status Report
  • [Presentation] タスマニア-ニュージーランド地磁気観測網による磁力線共鳴振動の詳細観測2013

    • Author(s)
      尾花 由紀, 塩川和夫, 寺本万里子, 柿並義宏, 才田聡子, 吉川顕正, 田中良昌, Frederick W. Menk, Colin L. Waters, Craig J. Rodger
    • Organizer
      日本地球惑星科学連合2013年大会
    • Place of Presentation
      幕張, 千葉
    • Related Report
      2013 Research-status Report
  • [Presentation] Characteristics in frequencies of Pi2 pulsations with the mid-latitude Northern American SuperDARN radar2013

    • Author(s)
      Teramoto, Mariko, John M. Ruohoniemi, Nathaniel A Frissel, Evan Thomas, Yuki Obana
    • Organizer
      地球電磁気・地球惑星圏学会 第134回総会及び講演会
    • Place of Presentation
      高知大学朝倉キャンパス, 高知
    • Related Report
      2013 Research-status Report
  • [Presentation] 夜境界線の通過に伴うQuarter WaveからHalf Waveへの磁力線共鳴振動モード遷移2013

    • Author(s)
      尾花由紀, C. L. Waters, M. D. Sciffer, F. W. Menk, R. L. Lysak
    • Organizer
      地球電磁気・地球惑星圏学会 第134回総会及び講演会
    • Place of Presentation
      高知大学朝倉キャンパス, 高知
    • Related Report
      2013 Research-status Report
  • [Presentation] A Study of Field Line Resonances using data from the Magnetometer Array in the Tas- mania and New Zealand Region2013

    • Author(s)
      尾花 由紀, 塩川和夫, 寺本万里子, 柿並義宏, 才田聡子, 吉川顕正, 田中良昌, Frederick W. Menk, Colin L. Waters, Craig J. Rodger
    • Organizer
      日本地球惑星科学連合2013年大会
    • Place of Presentation
      幕張, 千葉
    • Related Report
      2012 Research-status Report
  • [Presentation] Characteristics of Quarter-Wave ULF Pulsations around the dawn terminator2013

    • Author(s)
      Y. Obana, F. W. Menk, C. L. Waters, M. D. Sciffer, A. Yoshikawa, F. Honary, M. B. Moldwin, I. R. Mann, D. Boteler, V. Angelopoulos, and C. T. Russell
    • Organizer
      Asia Oceania Geosciences Society 10th Annual Meeting
    • Place of Presentation
      Brisbane, Australia
    • Related Report
      2012 Research-status Report
  • [Presentation] A Study of ULF pulsations observed at a New Magnetometer Array in the Tasmania and New Zealand Region2012

    • Author(s)
      尾花由紀, 塩川和夫, 柿並義宏, 才田聡子, 吉川顕正, 田中良昌, Frederick. W. Menk, Colin. L. Waters, Craig. J. Rodger
    • Organizer
      日本地球惑星科学連合2012年大会
    • Place of Presentation
      幕張, 千葉
    • Related Report
      2012 Research-status Report
  • [Remarks] OECU CRUX data archive

    • URL

      http://www1.osakac.ac.jp/crux/

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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