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Study of interaction between neutral and ionized atmosphere through field-aligned

Research Project

Project/Area Number 11304028
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

FUKAO S  Kyoto University, Radio Science Center for Space and Atmosphere, Professor, 宙空電波科学研究センター, 教授 (30026249)

Co-Investigator(Kenkyū-buntansha) HASHIGUCHI H  Kyoto University, Radio Science Center for Space and Atmosphere, Asssociate Professor, 宙空電波科学研究センター, 助教授 (90293943)
IYEMORII T  Kyoto University, Data Analysis Center for Geomagnetism and Space Magnetism, Professor, 大学院・理学研究科附属地磁気世界資料解析センター, 教授 (40144315)
YAMAMOTO M  Kyoto University, Radio Science Center for Space and Atmosphere, Asssociate Professor, 宙空電波科学研究センター, 助教授 (20210560)
OGAWA T  Nagoya University, Solar-Terrestrial Environment Laboratory, Professor, 太陽地球環境研究所, 教授 (60271607)
NAKAMURA T  Kyoto University, Radio Science Center for Space and Atmosphere, Asssociate Professor, 宙空電波科学研究センター, 助教授 (40217857)
斎藤 昭則  京都大学, 理学部, 助手 (10311739)
野崎 憲朗  郵政省通信総合研究所, 宇宙科学部, 総括主任研究員
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥37,200,000 (Direct Cost: ¥35,100,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2001: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2000: ¥12,700,000 (Direct Cost: ¥12,700,000)
Fiscal Year 1999: ¥15,400,000 (Direct Cost: ¥15,400,000)
KeywordsMidlatitude ionosphere / Ionospheric irregularity / Ouasi-Periodic Echo / Sporadic-E layer / Spread Fe / Radar observation / Computer simulation / WestPac campaign / スフレツドF / WestPacキャンペ-ン / FRONTキャンペーン
Research Abstract

From our previous studies we expect that field-aligned irregularities (FAI) in the ionospheric F- and E-regions are associated with the Perkins instability and the gradient-drift-instability, respectively. However we are still far from the understanding of their complicated generating processes and reason of spatial structures. With this grant-in-aid for scientific research, we conducted number of observation campaigns in Japan and abroad to reveal coupling processes between neutral and ionized atmosphere, and published 40 papers to famous international journals. Following is the list of studies we conducted under this grant.
1. We developed a new radar of 31.57 MHz for observing E-region FAI and meteor echoes. We can measure neutral winds simultaneously with the E-region FAI echoes. The radar was completed in the MU radar site in 2000, and used for long-term experiment. We could find accurate frequency occurrence of the FAI echoes, and its correlation with the neutral winds.
2. Study of E-region FAI : We operated the FM-CW radar of Communication Research Laboratory in Fukui obtain ionogram simultaneously with the MU radar. In USA radar observations of Quasi-Periodic echoes were conducted with SRI International. We developed two dimensional computer simulation, and studied generation of polarization electric field.
3. Study of F-region FAI : We participated in the WestPac campaign (network of ionosondes from Taiwan to Indonesia), and operated the FM-CW radar in Cebu, Philippines. We conducted the FRONT campaign to study F-region ionosphere and FAI with the MU radar, airglow imagers and GPS receivers. With the Equatorial Atmosphere Radar completed in Indonesia, we conducted the first observations of FAI in the southern low-latitude region. Through these observations we studied F-region FAI and its relationship to the background atmosphere.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] R.T.Tsunoda, S.Fukao他4名: "First Observations of Quasi-Periodic Radar Echoes From Stanford, California"Geophysical Research Letter. 26. 995-998 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] L.M.Kagan, T.Ogawa他7名: "A Role of Neutral Motions in Formation of Midlatitude E-Region Field-Aligned Irregularities"Geophysical Research Letter. 27. 939-942 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] P.B.Rao, M.Yamamoto他3名: "MU Radar Observations of Kilometer-Scale Waves in the Midlatitude Lower Region"Geophysical Research Letter. 27. 3667-3670 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.-R.Zhang, S.Fukao他2名: "Extraction of Solar and Thermospheric Information from the Ionospheric Electron Density Profile"Journal of Geophysical Research. 106. 12821-12836 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Ogawa他6名: "Observations and modeling of 630 nm airglow and total electron content associated with traveling ionospheric disturbances over Shigaraki, Japan"Earth Planets and Space. 54. 45-56 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Ogawa他5名: "Simultaneous middle and upper atmosphere radar and ionospheric sounder observations of midlatitude E region irregularities and sporadic E layer"Journal of Geophysical Research. 107. 1275-1286 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tsunoda, R.T., J.J. Buonocore, A. Saito, T. Kishimoto, M. Yamamoto, and S. Fukao: "First Observations of Quasi-Periodic Radar Echoes From Stanford, California"Geophysical Research letter. Vol.26. .995-998 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kagan, L.M., T. Ogawa, M. Yamamoto, and S. Fukao: "A Role of Neutral Motions in Formation of Midlatitude E-Region Field-Aligned Irregularities"Geophysical Research letter. Vol.27. .939-942 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Rao, P.B., M. Yamamoto, A. Uchida, I. Hassenpflung, and S. Fukao: "MU Radar Observations of Kilometer-Scale Waves in the Midlatitude Lower Region"Geophysical Research letter. Vol.27, No.22. .3667-3670 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Zhang, S.-R., W.L. Oliver, S. Fukao, and S. Kawamura: "Extraction of Solar and Thermospheric Information from the Ionospheric Electron Density Profile"Journal of Geophysical Research. Vol.106, No.A7. .12821-12836, 492 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ogawa, T., N. Balan, Y. Otsuka, K. Shiokawa, C. Ihara, T. Shimomai, and A. Saito: "Observations and modeling of 630 mm airglow and total electron content associated with traveling ionospheric disturbances over Shigaraki, Japan"Earth Planets and Space. Vol.54. .45-56 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ogawa, T., O. Takahashi, Y. Otsuka, K. Nozaki, M. Yamamoto, and K. Kita: "Simultaneous middle and upper atmosphere radar and ionospheric sounder observatgions of midlatitude E region irregularities and sporadic E layer"Journal of Geophysical Research. Vol.107, No. A10. .1275, doi : 10.1029/2001JA900176 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Saito A., N.Nishimura, M.Yamamoto, S.Fukao他: "Traveling Ionospheric Disturbances Detected in the FRONT Campaign"Geophys.Res.Lett.. 28・4. 689-692 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Zhang S.-R., W.L.Oliver, S.Fukao, S.kawamura: "Extraction of Solar and Thermospheric Information from the Ionospheric Electron Density Profile"J.Geophys.Res.. 106・A7. 12821-12836 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Gavrilov NM, Fukao S: "Hydrodynamic tropospheric wave sources and their role in gravity wave climatology of the upper atmosphere from the MU radar observations"J.Atmos.Solar-Terr.Phys.. 63・9. 931-943 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hsiao CC, Liu JY, Tsunoda RT, Fukao S他: "Evidence for the geographic control of additional layer formation in the low-latitude ionoshere"Adv.Space Res.. 27・6/7. 1293-1297 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Otsuka Y, Ogawa T, Saito A, Tsugawa T, Fukao S他: "A new technique for mapping of total electron content using GPS network in Japan"Earth Planets Space. 54・1. 63-70 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Saito A, Nishimura M, Yamamoto M, Fukao S: "Observations of traveling ionospheric disturbances and 3-m scale irregularities in the nighttime F-region ionosphere with the MU radar and a GPS network"Earth Planets Space. 54・1. 31-44 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] L.M.Kagan,T.Ogawa 他: "A Role of Neutral Motions in Formation of Midlatitude E-Region Field-Aligned Irregularities"Geophys.Res.Lett.. 27・7. 939-942 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.Kawamura,S.Fukao 他: "A Climatology of MU Radar Observations of Thermospheric Winds"J.Geophys.Res.. 105・A6. 12777-12788 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.-R.Zhang,S.Fukao 他: "A Climatology of MU Radar Observations of Thermospheric Winds"J.Geophys.Res.. 105・A6. 12777-12788 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] R.T.Tsunoda,S.Fukao 他: "SEEK S310-25 : Quasi-Periodic Echoes and Polarization Electric Fields"Geophys.Res.Lett.. 27・20. 3281-3284 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.M.Gavrilov,S.Fukao 他: "Gravity Wave Intensity and Momentum Fluxes in the Mesosphere over Shigaraki, Japan (35°N, 136°E) during 1986-1997"Ann.Geophys.. 18. 834-843 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] P.B.Rao,M.Yamamoto 他: "MU Radar Observations of Kilometer-Scale Waves in the Midlatitude Lower Reg"Geophys.Res.Lett.. 27・22. 3667-3670 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] R.T.Tsuda,S.Fukao 他: "First Observations of Quasi-Periodic Radar Echoes From Stanford, California"Geophys. Res. Lett.. 26. 995-998 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.M.Gavrilov,S.Fukao 他: "Multi-Beam MU Radar Measurements of Advective Accelerations in the Atmosphere"Geophys. Res. Lett.. 26. 315-318 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.M.Gavrilov,S.Fukao 他: "Peculiarities of Interannual Changes in the Mean Wind and Gravity Wave Characteristics in the Mesosphere over Shigaraki, Japan"Geophys. Res. Lett.. 26. 2457-2460 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Z.Su,G.J.Bailey,S.Fukao: "Altitude Dependencies in the Solar Activity Variations of the Ionospheric Electron Densities"J. Geophys. Res.. 104. 14879-14891 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Takahashi,T.Nakamura 他: "Response of the airglow OH emission, temperature and mesopause wind to the atmospheric wave propagation over Shigaraki, Japan"Earth Planets and Space. 51. 863-875 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] L.M.Kagan,T.Ogawa 他: "A Role of Neutral Motions in Formation of Midlatitude E-Region Field-Aligned Irregularities"Geophys. Res. Lett.. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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