Study on the wind velocity, temperature and humidity variation revealed by MU radar-RASS measurements

• Project/Area Number: 18340140
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Kyoto University
• Principal Investigator: TSUDA Toshitaka Kyoto University, 生存圏研究所, 教授 (30115886)
• Co-Investigator(Kenkyū-buntansha): FURUMOTO Jun-ichi 京都大学, 生存圏研究所, 特定助教 (10402934)
• Research Collaborator: SATOH Shinsuke 情報通信研究機構, 電磁波計測技術センター, 主任研究員 (30358981) ; NAGAI Seiji 情報通信研究機構, 沖縄亜熱帯計測技術センター, センター長 ; MURAYAMA Yasuhiro 情報通信研究機構, 電磁波計測技術センター, グループ長 (00359001)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥16,880,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥2,580,000); Fiscal Year 2008: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2007: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000); Fiscal Year 2006: ¥5,700,000 (Direct Cost: ¥5,700,000)
• Keywords: ウインドプロファイラ / RASS / 気温観測 / 大気擾乱 / 沖縄 / インド / 干渉計 / MUレーダー / 積乱雲 / 大気乱流 / 沖縄亜熱帯計測技術センター / 気温プルファイル / 台風 / 集中豪雨

Research Abstract

本研究では、大気レーダーに音響発射装置を付加したRASS(Radio Acoustic Sounding System)を活用して、気温・風速・水蒸気の時間・高度分布を精測し、大気波動、乱流、積雲の動態を解明した.信楽MU観測所、沖縄の443MHzレーダー(NICT)、西スマトラの赤道大気レーダー(EAR)、およびガダンキのMSTレーダーによる観測を実現し、得られたデータを衛星観測ともあわせて気象擾乱の特性解析を明らかにした.また最新のレーダー技術を適用してRASSの気温鉛直分解能を向上させた.

Research Products

• [Journal Article] 2008a : High-Resolution Radio Acoustic Sounding System (RASS) Observations and Analysis up to 20km (2008)
  • Author(s): Alexander S. P., T. Tsuda
  • Journal Title: J. Atmos. and Ocean Tech 25
• [Journal Article] Seasonal variation of short-period (<2 hr) gravity wave activity over Gadanki (2008)
  • Author(s): 2. Dutta, G., T. Tsuda, P. V. Kumar, M.C.A. Kumar, S. P. Alexander, T. Kozu
  • Journal Title: India (13.5N, 79.2E), J. Geophys. Res 113, D14103
• [Journal Article] Seasonal gravity wave activity observed with the Equatorial Atmosphere Radar and its relation to rainfall information from the Tropical Rainfall Measuring Mission (2008)
  • Author(s): Alexander, S. P., T. Tsuda, Y. Shibagaki, and T. Kozu
  • Journal Title: J. Geophys. Res 113, D02104
• [Journal Article] Development of radio acoustic sounding system (RASS) with Gadanki MST radar - first results (2008)
  • Author(s): Sarma, T.V.C., D. N. Rao, J. Furumoto, and T. Tsuda
  • Journal Title: Ann. Geophys 26 Pages: 2531-2542
• [Journal Article] Development of radio acoustic sounding system (RASS) with Gadanki MST radar-first results (2008)
  • Author(s): Sarma, T. V. C., D. N. Rao, J. Furumoto, T. Tsuda
  • Journal Title: Ann. Geophys. 26 Pages: 2531-2542
  • Peer Reviewed
• [Journal Article] Higu-Resolition Acoustic Sounding System(RASS) Observation and Analysis up to 20km (2008)
  • Author(s): Simon P. Alexander, Toshitaka Tsuda
  • Journal Title: J. Atmos. And Odean Tech. 25 Pages: 1383-1396
  • Peer Reviewed
• [Journal Article] High Resolution Radio Acoustic Sounding System (BASS) Observations and Analysis up to 20km (2008)
  • Author(s): Alexander, S. P., and T. Tsuda
  • Journal Title: J. Atmos. and Ocean. Tech (In print)
• [Journal Article] Seasonal variation of short-period (<2 hr) gravity wave activity over Gadanki, India (13.5N, 79.2E) (2008)
  • Author(s): Dutta, G., T. Tsuda, P. V. Kumar, M. C. Kumar, S. P. Alexander, and T. Kozu
  • Journal Title: J. Geophys. Res. (accepted)
• [Journal Article] High Resolution Radio Acoustic Sounding System (RASS) Observations and Analysis up to 20km (2008)
  • Author(s): Alexander, S.P., and T. Tsuda
  • Journal Title: J. Atmos. and Ocean. Tech (In print)
• [Journal Article] Seasonal variation of short-period (<2 hr) gravity wave activity over Gadanki, India (13.5N, 79.2E) (2008)
  • Author(s): Dutta, G., T. Tsuda, P.V. Kumar, M.C. Kumar, S.P. Alexander, and T. Kozu
  • Journal Title: J. Geophys. Res. (accepted)
• [Journal Article] Measurements of vertical eddy diffusivity across the tropopause using radio acoustic sounding system (RASS) (2007)
  • Author(s): Alexander S., T. Tsuda
  • Journal Title: Geophys. Res. Lett. 34.L06803
• [Journal Article] The Variational Assimilation Method for the Retrieval of Humidity Profiles with the Wind-profiling Radar (2007)
  • Author(s): Furumoto, J., S. Imura, T. Tsuda, H. Seko, T. Tsuyuki, K. Saito
  • Journal Title: J. Atmos. Ocean. Technol 24 Pages: 1525-1545
• [Journal Article] Estimation of Humidity Profiles by Combining Co-locating VHF and UHF Wind-profiling Radar Data (2007)
  • Author(s): Imura, S. J. Furumoto, T. Tsuda, T. Nakamura, A. Behrendt, M. Onishi
  • Journal Title: J. Meteorol. Soc. Japan 301 Pages: 301-319
• [Journal Article] The Variational Assimilation Method for the Retrieval of Humidity Prof files with the Wind-profiling Radar (2007)
  • Author(s): J. Furumoto, S. Imura, T. Tsuda, H. Seko, T. Tsuyuki, K. Saito
  • Journal Title: J. Atmos. Ocean. Technol. 24 Pages: 1525-1545
  • Peer Reviewed
• [Journal Article] Estimation of Humidity Profiles by Combining Co-locating VHF and UHF Wind-profiling Radar Data (2007)
  • Author(s): S. Imura, J. Furumoto, T. Tsuda, T. Nakamura
  • Journal Title: J. Meteorol. Soc. Japan 87 Pages: 301-319
  • Peer Reviewed
• [Journal Article] Seasonal Gravity Wave Activity Observed with the Equatorial Atmosphere Radar (EAR) and its relation to the Tropical Rainfall Measuring Missi on (TRMM) (2007)
  • Author(s): Alexander, ・S. P., T. Tsuda, Y. Shibagaki, and T. Kozu
  • Journal Title: J. Geophys. Res. 113,D02104
  • Peer Reviewed
• [Journal Article] Observations of the Diurnal Tide during seven intensive Radiosonde Campaigns in Australia and Indonesia (2007)
  • Author(s): Alexander, S. P., and T. Tsuda
  • Journal Title: J. Geophys. Res. 113,D04109
  • Peer Reviewed
• [Journal Article] The Variational Assimilation Method for the Retrieval of Humidity Profiles with the Wind-profiling Radar (2007)
  • Author(s): J. Furumoto, S. Imura, T. Tsuda, H. Seko, T. Tsuyuki, K. Saito
  • Journal Title: J. Atmos. Ocean. Technol. 24 Pages: 1525-1545
• [Journal Article] Seasonal Gravity Wave Activity Observed with the Equatorial Atmosphere Radar (EAR) and its relation to the Tropical Rainfall Measuring Mission (TRMM) (2007)
  • Author(s): Alexander, S. P., T. Tsuda, Y. Shibagaki, and T. Kozu
  • Journal Title: J. Geophys. Res. 113,D02104
• [Journal Article] Observations of the Diurnal Tide during seven intensive Radiosonde Campaigns in Australia and Indonesia (2007)
  • Author(s): Alexander, S.P., and T. Tsuda
  • Journal Title: J. Geophys. Res. 113,D04109
• [Presentation] Application of the frequency - domain interferometric imaging to RASS measurements (2009)
  • Author(s): Furumoto, J., T. Shinoda, T. Tsuda, and A. Matsugatani
  • Organizer: MST-12 workshop
  • Place of Presentation: London, Canada
• [Presentation] Continuous observations of temperature profiles by 443 MHz wind profiling radar with RASS in Okinawa (2009)
  • Author(s): Shinoda, T., J. Furumoto, T. Tsuda, S. Satoh, and Y. Murayama
  • Organizer: MST-12 workshop
  • Place of Presentation: London, Canada.
• [Presentation] Meso-gamma-scale convective systems observed by a 443MHz wind-profiling radar with RASS in the Okinawa subtropical region (2009)
  • Author(s): Mikami, A., J. Furumoto, T. Tsuda, S. Satoh, S. Nagai and T. Kawabata
  • Organizer: MST-12 workshop
  • Place of Presentation: London, Canada.
• [Presentation] RASS observations up to UTLS region at Gadanki (13.46oN, 79.17oE) (2009)
  • Author(s): Sarma, T. V. C. and T. Tsuda
  • Organizer: MST-12 workshop
  • Place of Presentation: London, Canada.
• [Presentation] A study of tropical tropopause variation at Gadanki (13.46N, 79.17E) using a long-termMST radar data-base supplemented with radiosonde and RASS measurements (2009)
  • Author(s): Sarma, T. V. C. and T. Tsuda
  • Organizer: MST-12 workshop
  • Place of Presentation: London, Canada
• [Presentation] Seasonal variation of short-period (<2h) gravity wave activity over Gadanki (2009)
  • Author(s): Dutta, G., T. Tsuda, P. V. Kumar, M. C. A. Kumar, S. P. Alexander, T. Kozu
  • Organizer: India (13.5N, 79.2E), MST-12 workshop
  • Place of Presentation: London, Canada
• [Presentation] Continuous monitoring of atmospheric temperature profiles with the MST radar-RASS at NARL, A workshop on "Ground-based atmosphere observation network in equatorial Asia (2009)
  • Author(s): Sarma, T. V. C
  • Organizer: the Asia-Africa Science Platform (AA-SP) Program of JSPS
• [Presentation] 周波数領域干渉計を用いたRASSによる気温観測の高鉛直分解能化 (2008)
  • Author(s): 篠田智仁, 古本淳一, 津田敏隆
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台市
  • Year and Date: 2008-11-20
• [Presentation] 443MHz帯ウインドプロファイラを用いた沖縄亜熱帯域における水蒸気プロファイルの推定 (2008)
  • Author(s): 古本淳一, 津田敏隆, 佐藤晋介
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台市
  • Year and Date: 2008-11-19
• [Presentation] 443MHzウインドプ已にプデイラ・RASSを用いた沖縄亜熱帯域における孤立積乱雲に関する研究 (2008)
  • Author(s): 三上彩, 古本淳一, 津田敏隆, 川畑拓矢, 佐藤晋介
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台市
  • Year and Date: 2008-11-19
• [Presentation] 400MHz帯WPR/RASSで観測された対流境界層の発達 (2008)
  • Author(s): 佐藤晋介, 古本淳一, 篠田智仁, 三上彩, 津田敏隆, 永井清二, 村山泰啓
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台市
  • Year and Date: 2008-11-19
• [Presentation] 周波数領域干渉計映像法を用いたRASS観測による高鉛直分解能気温観測 (2008)
  • Author(s): 古本淳一, 津田敏隆, 篠田智仁
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜市
  • Year and Date: 2008-05-20
• [Presentation] RASS Observations of virtual temperature up to UTLS region at Gadanki (13.5N, 79.2E) (2008)
  • Author(s): Sama, T. V. C, T. Tsuda, J. Furumoto
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜市
  • Year and Date: 2008-05-20
• [Presentation] 400MHz帯WPR・RASSを用いた亜熱帯域気温高度分布の定常観測 (2008)
  • Author(s): 篠田智仁, 古本淳一, 津田敏隆, 佐藤晋介, 永井清二, 村山泰啓
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜市
  • Year and Date: 2008-05-20
• [Presentation] 400MHz帯ウインドプロファイラ・RASSを用いた沖縄亜熱帯域の対流雲の観測 (2008)
  • Author(s): 三上彩, 古本淳一, 津田敏隆, 佐藤晋介
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜市
  • Year and Date: 2008-05-19
• [Presentation] 443MHz帯ウインドプロファイラを用いた沖縄亜熱帯域における水蒸気プロファイルの推定 (2008)
  • Author(s): 古本淳一、津田敏隆、佐藤晋介
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台
• [Presentation] 周波数領域干渉計を用いたRASSによる気温観測の高鉛直分解能化 (2008)
  • Author(s): 篠田智仁、古本淳一、津田敏隆
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台
• [Presentation] 443MHzウインドプロファイラ・RASSを用いた沖縄亜熱帯域における孤立積乱雲に関する研究 (2008)
  • Author(s): 三上彩、古本淳一、津田敏隆、川畑拓矢、佐藤晋介
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台
• [Presentation] 400MHz帯WPR/RASSで観測された対流境界層の発達 (2008)
  • Author(s): 佐藤晋介、古本淳一、篠田智仁、三上彩、津田敏隆、永井清二、村山泰啓
  • Organizer: 日本気象学会2008年度秋期大会
  • Place of Presentation: 仙台
• [Presentation] 周波数領域干渉計映像法を用いたRASS観測による高鉛直分解能気温観測 (2008)
  • Author(s): 古本淳一、津田敏隆、篠田智仁
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜
• [Presentation] RASS Observations of virtual temperature up to UTLS region at Gadanki (13.5N, 79.2E) (2008)
  • Author(s): Sarma, T.V.C, T. Tsuda, J. Furumoto
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜
• [Presentation] 400MHz帯WPR・RASSを用いた亜熱帯域気温高度分布の定常観測 (2008)
  • Author(s): 篠田智仁、古本淳一、津田敏隆、佐藤晋介、永井清二、村山泰啓
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜
• [Presentation] 400MHz帯ウインドプロファイラ・RASSを用いた沖縄亜熱帯域の対流雲の観測 (2008)
  • Author(s): 三上彩、古本淳一、津田敏隆、佐藤晋介
  • Organizer: 日本気象学会2008年度春期大会
  • Place of Presentation: 横浜
• [Presentation] Continuous Humidity Observation in a Tropical Region with the Equatorial Atmosphere Radar (EAR) (2007)
  • Author(s): Furumoto, J., T. Tsuda, T. Shimomai and T. Kozu
  • Organizer: International CAWSES Symposium
  • Place of Presentation: Kyoto
• [Presentation] Use of GPS Precipitable Water Vapor Data to Retrieve Humidity Profiles with a Wind-profiling Radar (2007)
  • Author(s): Furumoto, J., T. Tsuda and H. Seko
  • Organizer: AOGS 2007 Assembly
  • Place of Presentation: Bangkok, Japan.
• [Presentation] 400MHz帯ウィンドプロファイラ・RASS観測による亜熱帯域温度微細構造の観測 (2007)
  • Author(s): 古本淳一、大西正典、津田敏隆、佐藤晋介、村山泰啓、井口俊夫
  • Organizer: 日本気象学会2007年度春期大会
  • Place of Presentation: 東京
• [Presentation] 周波数干渉計映像法を用いたMUレーダー・RASS観測による気温の高高度分解能観測 (2007)
  • Author(s): 松ヶ谷篤史、古本淳一、津田敏隆
  • Organizer: 日本気象学会2007年度春期大会
  • Place of Presentation: 東京
• [Presentation] Continuous humidity monitoring in a tropical region with the Equatorial Atmosphere Radar(EAR) (2007)
  • Author(s): Furumoto, J., T. Tsuda and T. Kozu
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar, Tirupati(416-420)
  • Place of Presentation: India
• [Presentation] Use of GPS Precipitable Water Vapor Data to Retrieve Humidity Profiles with a Wind-profiling Radar, (2007)
  • Author(s): Furumbto, J., T. Tsuda, and H. Seko,
  • Organizer: AOGS 2007
  • Place of Presentation: Bangkok
• [Presentation] 400MHz帯ウィンドプロファイラ・RASS観測による亜熱帯域温度微細構造の観測 (2007)
  • Author(s): 古本淳一、大西正典、津田敏隆 佐藤晋介、村山泰啓、井口俊夫
  • Organizer: 日本気象学会2007年春季大会
  • Place of Presentation: 東京
• [Presentation] COSMIC衛星によるGPS掩蔽データを用いた気温、水蒸気プロファイルの推定-GSM予報値データを第一推定値とした1次元変分法による推定- (2007)
  • Author(s): 古本淳一、津田敏隆、瀬古弘、瀬古弘
  • Organizer: 日本気象学会2007年春季大会
  • Place of Presentation: 東京
• [Presentation] Retrieval of humidity profiles by simultaneous co-located VHF and UHF wind-profiling radar data (2006)
  • Author(s): Imura, S., J. Furumoto, T. Tsuda and T. Nakamura
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar, Tirupati(401-405)
  • Place of Presentation: India
• [Presentation] Humidity retrieval from the turbulence echo characteristics using one-dimensional variational assimilation method (2006)
  • Author(s): Furumoto, J., T. Tsuda, H. Seko and K. Saito
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar, Tirupati(406-410)
  • Place of Presentation: India
• [Presentation] The Frequency Domain Interferometric Imaging to Monitor the Temperature Profiles with the MU Radar-RASS (2006)
  • Author(s): Matsugatani, A., J. Furumoto and T. Tsuda
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar
  • Place of Presentation: Tirupati, India
• [Presentation] Design and Development of an Acoustic Attachment to Gadanki MST Radar for RASS Observations (2006)
  • Author(s): Sarma, T. V. C., D. N. Rao, J. Furumoto and T. Tsuda
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar(279-283)
  • Place of Presentation: Tirupati, India
• [Presentation] First RASS Observations using Gadanki MST Radar, Eleventh International Workshop on Technical and Scientific Aspects of MST Radar (2006)
  • Author(s): Sarma, T. V. C., D. N. Rao, J. Furumoto and T. Tsuda
  • Organizer: Tirupati, (589-591)
  • Place of Presentation: India
• [Presentation] Effects of Atmospheric Stability on Tropospheric Wave and Energy Propagation (2006)
  • Author(s): Alexander S., T. Tsuda and J. Furumoto
  • Organizer: Eleventh International Workshop on Technical and Scientific Aspects of MST Radar(647-649.)
  • Place of Presentation: Tirupati, India
• [Presentation] GPS掩蔽およびウインドプロファイラデータを用いて水蒸気プロファイル推定を行う1次元変分法手法 (2006)
  • Author(s): 古本淳一、津田敏隆、瀬古弘、斉藤和雄
  • Organizer: 日本気象学会2006年度秋期大会
  • Place of Presentation: 名古屋
• [Presentation] MUレーダー・RASSイメージングによる温度微細構造の観測 (2006)
  • Author(s): 松ヶ谷篤史、古本淳一、津田敏隆
  • Organizer: 日本気象学会2006年度秋期大会
  • Place of Presentation: 名古屋