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Development of a data processing and distribution system for total electron content data of a GPS receiver network

Research Project

Project/Area Number 12640421
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

YAMAMOTO M  Kyoto University, Radio Science Center for Space and Atmosphere, Associate Professor, 宙空電波科学研究センター, 助教授 (20210560)

Co-Investigator(Kenkyū-buntansha) YAMANAKA M  Kobe University, Graduate School of Science and Technology, Professor, 大学院・自然科学研究科, 教授 (30183982)
HASHIGUCHI H  Kyoto University, Radio Science Center for Space and Atmosphere, Associate Professor, 宙空電波科学研究センター, 助教授 (90293943)
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)
河野 宜幸  京都大学, 宙空電波科学研究センター, 学振特別研究員
LUCE Hubert  京都大学, 宙空電波科学研究センター, 学振外国人特別研究員
KAWANO N  Kyoto University, Radiko Science Center for Space and Atmosphere, JSPS Postdoctral Fellow
LUCE H  Kyoto University, Radiko Science Center for Space and Atmosphere, JSPS Postdoctral Fellow
河野 宣幸  京都大学, 宙空電波科学研究センター, 学振特別研究員
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 2001: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2000: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsMUTSI observation / MU radar / High resolution temperature measurement / Radiosonde / Atmospheric turbulence / Japan-France cooperative experiment / Frequency domain interferometry
Research Abstract

Understanding of the atmospheric turbulence and its structure largely depends on observation techniques. There is a French group that conducts radiosonde experiment to measure atmospheric temperature profile with the ultra-high resolution of 10 cm. On the other hand, with the MU radar we can conduct the Frequency Domain Interferometry (FDI) experiment to measure structure of the atmospheric reflection/scattering echoes with much higher resolution than usual. Cooperative experiment between these Japanese and French groups, e.g., MUTSI (MU radar, Temperature Sheets and Interferometry) was planned and realized with the help of this grant-in-aid for scientific research. Following is the list of studies we conducted under this grant.
1. MUTSI experiment : In May 2000, we successfully conducted the MUTSI experiment by launching French radiosonde with ultra-high resolution temperature sensors simultaneously with the MU radar FDI and multi-beam experiment. Totally ten rasiosondes were launched from Kyotanabe, Kyoto while we could estimate their closer trajectory near the MU radar in Shigaraki, Shiga.
2. Data analysis : The MU radar data from the MUTSI experiment were analyzed by the Japanese group while the radiosonde data were analyzed by the French scientists. After some meetings for the data comparisons we found many very-thin turbulence layers with 10 m or less thickness, in which unstable region exists within stable regions above and below them.
3. Further radar experiment : Based on the results from the MUTSI experiment, we further conducted new multi-beam experiment with the MU radar, and found an interesting feature that direction of the azimuthal (horizontal) inhomogeneity of the echo intensity is well correlated with the wind shear direction. We also used the Equatorial Atmosphere Radar to study relationship between echo intensity and the atmospheric turbulence.

Report

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

    (24 results)

All Other

All Publications (24 results)

  • [Publications] H.Luce, M.Yamamoto他2名: "Scattering layer thickness and position estimated by radar frequency domain interferometry 1. Effects of the limited horizontal extent and advection of the scattering layers"Radio Science. 35. 119-131 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Luce, K.Kubo, S.Fukao: "An experimental contribution to the interpretation of MST radar echoes in Frequency Domain Interferometric mode"Radio Science. 36. 999-1012 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Luce, M.Yamamoto他2名: "Extended radar observations with the frequency radar domain interferometric imagine (FII) technique"Journal of Atmospheric and Solar-Terrestrial Physics. 63. 1033-1041 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N.Kawano, S.Fukao: "Investigation on horizontal wind estimation around high aspect sensitivity"Radio Science. 36. 1477-1492 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Luce, S.Fukao他3名: "Validation of Winds Measured by MU Radar with GPS Radiosondes during the MUTSI Campaign"Journal of Atmospheric and Oceanic Technology. 18. 817-829 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.Luce, S.Fukao他2名: "Strong mixing events observed with MU radar and balloon measurements"Journal of Atmospheric Science. 59. 2885-2896 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., J. Roettger, M. Yamamoto, and S. Fukao: "Scattering layer thickness and position estimated by radar frequency domain interferometry 1. Effects of the limited horizontal extent and advection of the scattering layers"Radio Science. Vol.35. 119-131 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., K. Kubo, and S. Fukao: "An experimental contribution to the interpretation of MST radar echoes in Frequency Domain Interferometric mode"Radio Science. Vol.36. 999-1012 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., M. Yamamoto, S. Fukao, and M. Crochet: "Extended radar observations with the frequency radar domain interferometric imaging (FII) technique"Journal of Atmospheric and Solar-Terrestrial Physics. Vol.63. 1033-1041 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawano, N., and S. Fukao: "Investigation on horizontal wind estimation around high aspect sensitivity"Radio Science. Vol.36. 1477-1492 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., S. Fukao, M. Yamamoto, C. Sidi and F, Dalaudier: "Validation of winds measured by MU radar with GPS radiosondes during the MUTSI campaign"Journal of Atmospheric and Oceanic Technology. Vol.18. 817-829 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., S. Fukao, F. Dalaudier and M. Crochet: "Strong mixing events observed with MU radar and balloon measurements"Journal of Atmospheric Sciences. Vol.59. 2885-2896 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Luce, H., S.Fukao, M.Yamamoto 他: "Validation of Winds Measured by MU Radar with GPS Radiosondes during the MUTSI Campaign"J.Atmos. Oceanic Tech.. 18・6. 817-829 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kawano N, Fukao S: "Investigation on horizontal wind estimation around high aspect sensitivity"Radio Sci.. 36・6. 1477-1492 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Luce H, Kubo K, Fukao S: "An experimental contribution to the interpretation of mesosphere-strato-sphere-troposphere radar echoes in frequency domain interferometric mode"Radio Sci.. 36・5. 999-1012 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Gavrilov N.M., 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] Luce H., Yamamoto M., Fukao S., Crochet M.: "Extended radar observations with the frequency radar domain Interferometric imaging(FII)technique"J.Atmos. Solar-Terr. Phys.. 63・10. 1033-1041 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Luce, H., S.Fukao, F.Dalaudier, M.Crochet: "Strong Mixing Events Observed with MU Radar and High-Resolution Balloon Techniques"J.Atmos. Solar-Terr. Phys.. (印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Luce,M.Yamamoto 他: "Scattering Layer Thickness and Position Estimated by Radar Frequency Domain Interferometry, 1 : Effects of the Limited Horizontal Extent and Advection of the Scattering Layers"Radio Sci.. 35・1. 119-131 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Luce,M.Yamamoto 他: "Scattering Layer Thickness and Position Estimated by Radar Frequency Domain Interferometry, 2.Effects of Tilts of the Scattering Layer or Radar Beam"Radio Sci.. 35・5. 1109-1127 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] I.Takayabu,M.D.Yamanaka 他: "A Mechanism of the Reversal of Long-Term Average Vertical Velocities around East Asia during the Cold Season"J.Met.Soc.Japan. 78・1. 13-23 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] N.Kawano,H.Luce 他: "Tilted atmospheric layer and gravity wave studies by simultanous DBS/SDI observations with the MU radar during the passage of a trough"Radio Sci.. 36・1. 67-78 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Luce,M.Yamamoto 他: "A frequency domain radar interferometric imaging (FII) technique based on highresolution methods"J.Atmos.Solar-Terr.Phys.. 63・2-3. 221-234 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] H.Luce,S.Fukao 他: "Validation of Winds Measured by MU Radar with GPS Radiosondes during * MUTSI Campaign"J.Atmos.Oceanic Tech.. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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