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Application Study of Water Vapor obtained from GPS for Meteorology

Research Project

Project/Area Number 08640552
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionNATIONAL ASTRONOMICAL OBERVATORY

Principal Investigator

NAITO Isao  National Astronomical Observatory, Earth Rotation Division, Assistant Professor, 地球回転研究系, 助教授 (90000174)

Co-Investigator(Kenkyū-buntansha) WATANABE Akira  Fukushima University, Dept.Education, Professor, 教育学部, 教授 (70114006)
HEKI Kosuke  National Astronomical Observatory, Earth Rotation Division, Assistant Professor, 地球回転研究系, 助教授 (30280564)
Project Period (FY) 1996 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1997: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1996: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsGPS / Atmospheric Delay / Water Vapor / Precipitable Water / Meteorogy / 測地観測 / 天気予報
Research Abstract

Recent high precision earth orbit information in GPS (Global Positioning System) has made it possible to retrieve water vapor from GPS measurements. As a result, an application study of GPS water vapor information for meteorology has been started under GPS meteorology. The present study is the fist research on GPS meteorology in Japan.
The results of analyzes of GPS data measured in nation wide array of Geographical Survey Institute reveals precipitable water obtained from GPS agree well with those from radio-sonde observatiosn with RMS difference of 2mm. A year-round comparison of GPS precipitable water with that from radio-sonde observation at Tsukuba showed a remarkable diurnal variations in precipitable water connected with land breeze and sea breeze in summer. In addition, by visalization of GPS precipitable water distributions over the Japanese Island based upon 556 GPS sites of Geographical Survey Institute, precipitable water distributions connected with a front moving eastward across the Island can be clearly detected. This indicates that GPS has an ability as an all weather sensor of precipitable water.

Report

(3 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 内藤 勲夫: "水蒸気を測る:GPS気象学のねらい" 水文・水資源学会誌. 9. 570-578 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 内藤 勲夫: "GPS気象学:水蒸気を制す" 測量. 47. 30-34 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 内藤 勲夫: "GPS気象学:水蒸気を測る" パリティー. (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] I.Naito: "GPS Metearology in Japan;Strategy&Activities" EOS(AGU). (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 大谷 竜・内藤 勲夫: "GPS可降水量の物理と評価" 気象研究ノート. (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 岩淵 哲也・内藤 勲夫: "国土地理GPS観測網がとらえた可降水量の動態" 気象研究ノート. (印刷中). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] NAITO,ISAO: "GPS Meteorology in Japan : Strategy and Activities" EOS.Transaction of American Geophysical Union. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 大谷 竜, ほか: "国土地理院GPS観測網から推定された可降水量" 天気. 44巻. 19-27 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤 勲夫: "GPS/MET Japanの概要" 千葉大学環境リモートセンシング研究センター共同利用報告. 第1号. 1-4 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤 勲夫: "GPS気象学:水蒸気を制す" 測量. 47巻・11号. 30-34 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤 勲夫: "GPS/MET Japanの測地学的ねらい" 地球. 223巻. 30-34 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤 勲夫: "GPS気象学:水蒸気を測る" パリティー. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤 勲夫, 他: "GPS Meteorology in Japan;Strotegy and Activities" EOS,AGU. (印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 内藤勲夫: "水蒸気を測る:GPS気象学のねらい" 水文水資源学会誌. 9. 570-578 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 青梨和正・ほか: "第2回GPS気象学ワークショップ報告" 天気. 44. 47-50 (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 大谷竜・ほか: "国土地理院GPS観測網から推定された可降水量" 天気. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] Ohtani,R.et al.: "Precipitable Water Vapor over Japan Islands observed by GPS" Proc.Int.Conf.Water Res.& Env. Res.,Kyoto. (in press). (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 大谷竜・ほか: "様々な気象条件におけるGPSによる大気遅延の推定精度の評価" 気象学会1997年春講演予稿集. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 岩淵哲也・ほか: "国土地理院GPS解析結果から取り出した可降水量変動" 気象学会1997年春講演予稿集. (印刷中). (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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