2010 Fiscal Year Final Research Report
Radar system network at high resolution
| Project/Area Number |
19201036
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | Osaka University |
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Principal Investigator |
KAWASAKI Zenichiro Osaka University, 工学研究科, 教授 (60126852)
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| Co-Investigator(Kenkyū-buntansha) |
TOMOO Ushio 大阪大学, 工学研究科, 准教授 (50332961)
TAKESHI Morimoto 大阪大学, 工学研究科, 講師 (60403169)
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| Project Period (FY) |
2007 – 2010
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| Keywords | レーダ / 大気電気学 / 気象学 / 観測ネットワーク / 雷放電 |
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| Research Abstract |
A high-resolution precipitation and lightning monitoring system was developed and operated. This monitoring is mainly utilized the Ku-band broadband radar (BBR) and the VHF broadband digital interferometer (DITF). The BBR can accurately measure the radar reflectivity factor and the mean Doppler velocity with 5 m resolution over a range from 40 m to several kilometers for 10 W power using a pulse compression technique. Two or more DITFs make us visualize lightning channel propagations in three dimensions. Moreover, we add new functions that integrate these observation data and disclose integration analyses results with the quasi real-time information disclosure system. Initial observations for severe storms with lightning during summer and winter thunderstorm season by these monitoring instruments indicate that we obtain detailed precipitation distribution and detect active convective cells with lightning discharges.
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Research Products
(39 results)
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[Journal Article] Three-dimensional imaging of upward leaders in triggered lightning using VHF broadband digital interferometers, Geophys.2010
Author(s)
Yoshida, S., C.J.Biagi, V.A.Rakov, J.D.Hill, M.V.Stapleton, D.M.Jordan, M.A.Uman, T.Morimoto, T.Ushio, Z-I.Kawasaki
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Journal Title
Res.Lett. VOL.37
Pages: L05805, doi:10.1029/2009GL042065
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[Presentation] Global characteristics between lightning activity and frozen hydrometeor from WWLLN and AMSU-B/MHS2010
Author(s)
Nakamura, R.H.Holzworth, A.R.Jacobson, J.A.Weinman, L.A.McMurdie, H.Meng, R.R.Ferraro, T.Morimoto, T.Ushio, Z.Kawasaki
Organizer
AGU fall meeting 2010
Place of Presentation
San Francisco, U.S.A.
Year and Date
20101213-20101217
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[Presentation] Rocket-triggered lightning observed by VHF broadband digital interferometers,2009
Author(s)
S.Yoshida, C.J.Biagi, V.A.Rakov, M.A.Uman, D.M.Jordan, J.D.Hill, T.Morimoto, T.Ushio, Z.-I.Kawasaki
Organizer
2009 AGU Fall Meeting
Place of Presentation
San Francisco, U.S.A.
Year and Date
20090914-20090918
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[Presentation] Radiation Bursts Synchronizing with Lightning Discharges in Hokuriku, Japan2007
Author(s)
S.Yoshida, M.Satoh, T.Morimoto, T.Ushio, Z-I.Kawasaki, T.Torii, D.Wang, N.Takagi, T.Watanabe
Organizer
13th International Conference on Atmospheric Electricity(349-352)
Place of Presentation
Beijing, CHINA
Year and Date
20070813-20070817
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