Radar imaging observations of the field-aligned irregularities at low-latitude ionosphere

• Project/Area Number: 20684021
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Space and upper atmospheric physics
• Research Institution: Nagoya University
• Principal Investigator: OTSUKA Yuichi 名古屋大学, 太陽地球環境研究所, 准教授 (40314025)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥22,620,000 (Direct Cost: ¥17,400,000、Indirect Cost: ¥5,220,000); Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2008: ¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
• Keywords: 超高層物理学 / 地球電磁気 / 地球観測 / リモートセンシング / 電離圏 / インドネシア / 電離圏不規則構造 / レーダー

Research Abstract

We have analyzed E- and F-region field-aligned irregularities (FAIs) observed by a VHF backscatter radar with an operating frequency of 30.8 MHz in Indonesia and revealed statistically local time, seasonal, and solar activity variations of the FAI occurrence rates. Propagation characteristics and drift velocities of the FAIs are also investigated. Especially, we have studied the post-midnight F-region FAIs and suggested that the post-midnight FAIs are likely associated with either plasma bubbles or medium-scale traveling ionospheric disturbances (MSTIDs).

Research Products

• [Journal Article] Seasonal and Local Time Variations of E-Region Field-Aligned Irregularities Observed with 30.8-MHz Radar at Kototabang, Indonesia, Special issue of International Journal of Geophysics (2012)
  • Author(s): Otsuka, Y.
  • Journal Title: Low-latitude Mesosphere, Thermosphere and Ionosphere Volume: (in press)
  • Peer Reviewed
• [Journal Article] VHF Radar Observations of Post-Midnight F-Region Field-Aligned Irregularities over Indonesia during Solar Minimum (2012)
  • Author(s): Otsuka, Y., K. Shiokawa, M. Nishioka and Effendy
  • Journal Title: Indian Journal of Radio and Space Physics (IJRSP) Volume: 41 Pages: 199-207
  • Peer Reviewed
• [Journal Article] Ionospheric and thermospheric storms at equatorial latitudes observed by CHAMP, ROCSAT, and DMSP (2012)
  • Author(s): Balan, N. , J. Y. Liu, Y. Otsuka, S. Tulasi Ram, and H. Luhr
  • Journal Title: J. Geophys. Res. Volume: 117 Issue: A1
  • DOI: 10.1029/2011ja016903
  • Peer Reviewed
• [Journal Article] Statistical Study of Medium-Scale Traveling Ionospheric Disturbances Observed with a GPS Receiver Network in Japan (2011)
  • Author(s): Otsuka, Y., N. Kotake, K. Shiokawa, T. Ogawa, T. Tsugawa, and A. Saito
  • Journal Title: Aeronomy of the Earth's Atmosphere and Ionosphere IAGA Special Sopron Book Series Volume: Volume 2, Part 3 Pages: 291-299
  • DOI: 10.1007/978-94-007-0326-1_21
  • ISBN: 9789400703254, 9789400703261
  • Peer Reviewed
• [Journal Article] On post-midnight low-latitude ionospheric irregularities during solar minimum: 1. Equatorial Atmosphere Radar and GPS-TEC observations in Indonesia (2011)
  • Author(s): Yokoyama, T., M. Yamamoto, Y. Otsuka, M. Nishioka, T. Tsugawa, S. Watanabe, and R. F. Pfaff
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A11 Pages: n/a-n/a
  • DOI: 10.1029/2011ja016797
  • Peer Reviewed
• [Journal Article] On post-midnight low-latitude ionospheric irregularities during solar minimum: 2. C/NOFS observations and comparisons with the Equatorial Atmosphere Radar (2011)
  • Author(s): Yokoyama, T., R. F. Pfaff, P. Roddy, M. Yamamoto, and Y. Otsuka
  • Journal Title: J. Geophys. Res. Volume: 116 Issue: A11 Pages: n/a-n/a
  • DOI: 10.1029/2011ja016798
  • Peer Reviewed
• [Journal Article] Overview of Nighttime Ionospheric Instabilities at Low-and Mid-Latitudes: Coupling Aspects Resulting in Structuring at the Mesoscale (2011)
  • Author(s): Makela, J., and Y. Otsuka
  • Journal Title: Space Sci. Rev. Volume: 168 Issue: 1-4 Pages: 419-440
  • DOI: 10.1007/s11214-011-9816-6
  • Peer Reviewed
• [Journal Article] Longitudinal development of low-latitude ionospheric irregularities during the geomagnetic storms of July 2004 (2010)
  • Author(s): Li, G., B.Ning, L.Hu, L.Liu, X.Yue, W.Wan, B.Zhao, K.Igarashi, M.Kubota, Y.Otsuka, J.S.Xu, J.Y.Liu, J.L.Chau
  • Journal Title: Journal of Geophysical Research Volume: 115,A04304
  • Peer Reviewed
• [Journal Article] First observations of large-scale wave structure and equatorial spread F using CERTO radio beacon on the C/NOFS satellite (2009)
  • Author(s): Thampi, S. V., M. Yamamoto, R. T. Tsunoda, Y. Otsuka, T. Tsugawa, J. Uemoto, and M. Ishii
  • Journal Title: Geophys. Res. Lett. Volume: 36 Issue: 18
  • DOI: 10.1029/2009gl039887
  • Peer Reviewed
• [Journal Article] First observations of large-scale wave structure and equatorial spread Fusing CERTO radio beacon on the C/NOFS satellite (2009)
  • Author(s): Thampi, S.V., M.Yamamoto, R.T.Tsunoda, Y.Otsuka, T.Tsugawa, J.Uemoto, M.Ishii
  • Journal Title: Geophys.Res.Lett 36
  • Peer Reviewed
• [Journal Article] Seasonal and Local Time Variations of E-Region Field-Aligned Irregularities Observed with 30.8-MHz Radar at Kototabang, Indonesia
  • Author(s): Otsuka, Y.
  • Journal Title: International Journal of Geophysics Volume: (印刷中)
  • Peer Reviewed
• [Journal Article] VHF Radar Observations of Post-Midnight F-Region Field-Aligned Irregularities over Indonesia during Solar Minimum
  • Author(s): Otsuka, Y., K.Shiokawa, M.Nishioka, Effendy
  • Journal Title: Indian Journal of Radio and Space Physics Volume: (印刷中)
  • Peer Reviewed
• [Presentation] Optical and Radar Observations of Ionospheric Irregularities in Indonesia and Thailand: Recent Results (2012)
  • Author(s): Otsuka, Y., D. Fukushima, K. Shiokawa, M. Kubota, T. Tsugawa, M. Nishioka, T. Nagatsuma and Effendy
  • Organizer: The 1st Asia-Oceania Space Weather Alliance (AOSWA) Workshop
  • Place of Presentation: Chiang Mai, Thailand
• [Presentation] 電離圏プラズマバブルの光学・電波観測 (2012)
  • Author(s): 大塚雄一、塩川和夫、小川忠彦、山本衛、横山竜弘
  • Organizer: 第26回大気圏シンポジウム
  • Place of Presentation: JAXA宇宙科学研究所
• [Presentation] Optical and Radar Observations of Ionospheric Irregularities in Indonesia and Thailand : Recent Results (2012)
  • Author(s): Y.Otsuka, D.Fukushima, K.Shiokawa, M.Kubota, T.Tsugawa, M.Nishioka, T.Nagatsuma, Effendy
  • Organizer: The 1st Asia-Oceania Space Weather Alliance (AOSWA) Workshop
  • Place of Presentation: Chiang Mai, Thailand(招待講演)
• [Presentation] Optical and Radar Observations of Plasma Bubbles over Indonesia: Recent Results (2011)
  • Author(s): Otsuka, Y., et al.
  • Organizer: International Workshop on Space Weather in Indonesia
  • Place of Presentation: Bandung, Indonesia
  • Year and Date: 2011-09-21
• [Presentation] Equatorial Ionospheric Scintillations and Zonal Irregularity Drifts Observed with Closely-Spaced GPS Receivers in Indonesia (2011)
  • Author(s): Otsuka, Y., et al.
  • Organizer: SCALION International Symposium 2011
  • Place of Presentation: Bangkok, Thailand
• [Presentation] インドネシアにおける真夜中過ぎ電離圏擾乱のVHFレーダー及びイオノゾンデ観測 (2011)
  • Author(s): 大塚雄一、西岡未知、塩川和夫、長妻努、津川卓也、Effendy、Septi Perwitasari
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張
• [Presentation] 東南アジア地域における地上・衛星観測データを用いた電離圏全電子数の緯度分布と電離圏擾乱出現との相関の解明 (2011)
  • Author(s): 西岡未知、大塚雄一、塩川和夫、津川卓也、Patrick.A.Roddy
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張
• [Presentation] 赤道大気レーダーで昼間に観測された高度150km沿磁力線不規則構造の研究 (2011)
  • Author(s): 大塚雄一, 西岡未知, 塩川和夫, 山本衛
  • Organizer: 第130回地球電磁気・地球惑星圏学会
  • Place of Presentation: 神戸大学
• [Presentation] Study on night-time F-region irregularities using a VHF radar, ionosondes, and ground-based GPS stations in Southeast Asia (2011)
  • Author(s): Nishioka, M., Y. Otsuka, T. Tsugawa, and K. Shiokawa
  • Organizer: CEDAR-GEM Joint Workshop
  • Place of Presentation: Santa Fe, New Mexico
• [Presentation] VHF radar and ionosonde observations of post-midnight irregularitiesin Indonesia (2011)
  • Author(s): Otsuka, Y., K. Shiokawa, T. Nagatsuma, T. Tsugawa, S. Perwitasari, et al.
  • Organizer: International Union of Geodesy and Geophysics (IUGG) 2011
  • Place of Presentation: Melbourne Australia
• [Presentation] VHF radar and ionosonde observations of post-midnight irregularitiesin Indonesia (2011)
  • Author(s): Otsuka, Y., K. Shiokawa, T. Nagatsuma, T. Tsugawa, Effendy, and S. Perwitasari
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2011
  • Place of Presentation: Taipei, Taiwan
• [Presentation] Study on Latitudinal Profile of TEC and Its Relationship with Plasma Irregularity Occurrence Over Southeast Asia (2011)
  • Author(s): Nishioka, M., Y. Otsuka, K. Shiokawa, T. Tsugawa and P. Roddy
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2011
  • Place of Presentation: Taipei, Taiwan
• [Presentation] Post-midnight field-aligned irregularities observed with a VHF radar at Kototabang, Indonesia (2011)
  • Author(s): Otsuka, Y., K. Shiokawa, M. Nishioka, and Effendy
  • Organizer: American Geophysical Union (AGU) Fall Meeting 2011
  • Place of Presentation: San Francisco, USA
• [Presentation] インドネシア・コトタバンにおける沿磁力線不規則構造のレーダー観測 (2011)
  • Author(s): 大塚雄一、西岡未知、塩川和夫、山本衛、Effendy
  • Organizer: 第5回赤道大気レーダーシンポジウム第182回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] VHF radar and ionosonde observations of post-midnight irregularities in Indonesia (2011)
  • Author(s): Y.Otsuka, K.Shiokawa, T.Nagatsuma, T.Tsugawa, S.Perwitasari, et al.
  • Organizer: International Union of Geodesy and Geophysics (IUGG) 2011
  • Place of Presentation: Melbourne, Australia(招待講演)
• [Presentation] VHF radar and ionosonde observations of post-midnight irregularities in Indonesia (2011)
  • Author(s): Y.Otsuka, K.Shiokawa, T.Nagatsuma, T.Tsugawa, Effendy, S.Perwitasari
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2011
  • Place of Presentation: Taipei, Taiwan(招待講演)
• [Presentation] Post-midnight field-aligned irregularities observed with a VHF radar at Kototabang, Indonesia (2011)
  • Author(s): Y.Otsuka, K.Shiokawa, M.Nishioka, Effendy
  • Organizer: American Geophysical Union (AGU) Fall Meeting 2011
  • Place of Presentation: San Francisco, USA(招待講演)
• [Presentation] Equatorial Ionospheric Scintillations and Zonal Irregularity Drifts Observed with Closely-Spaced GPS Receivers in Indonesia (2011)
  • Author(s): Y.Otsuka
  • Organizer: SEALION International Symposium 2011
  • Place of Presentation: バンコク、タイ
• [Presentation] Effects of ionospheric irregularities and disturbances on GNSS (2010)
  • Author(s): Otsuka, Y., K. Shiokawa, and K. Yumoto
  • Organizer: The first Asia Oceania Region Workshop on GNSS
  • Place of Presentation: Bangkok, Thailand
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2010)
  • Author(s): Otsuka, Y., T. Ogawa, Effendy
  • Organizer: Regional CAWSES-II MLT Meeting
  • Place of Presentation: Singapore
• [Presentation] インドネシアの31MHzレーダーによる電離圏沿磁力線不規則構造の観測 (2010)
  • Author(s): 大塚雄一, 塩川和夫, 小川忠彦
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張
• [Presentation] インドネシアにおける夜間F領域沿磁.力線不規則構造のV[IFレーダー観測 (2010)
  • Author(s): 大塚雄一, 塩川和夫, 小川忠彦
  • Organizer: 第128回地球電磁気・地球惑星圏学会
  • Place of Presentation: 那覇
• [Presentation] VHF Radar Observations of Field-Aligned Irregularities in Indonesia (2010)
  • Author(s): Otsuka, Y. , K. Shiokawa, T. Ogawa, and Effendy
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2010
  • Place of Presentation: Huderabad, India
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Indonesia (2010)
  • Author(s): Otsuka, Y. , K. Shiokawa, T. Ogawa, and Effendy
  • Organizer: AGU 2010 Spring Meeting
  • Place of Presentation: Foz do Iguassu, Brazil
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Kototabang, Indonesia (2010)
  • Author(s): Otsuka, Y. , T. Ogawa, and Effendy
  • Organizer: AP-RASC'10
  • Place of Presentation: Toyama, Japan
• [Presentation] Perkins and gradient drift instabilities (2010)
  • Author(s): Otsuka, Y.
  • Organizer: Workshop Coupling between the Earth's atmospheric and Plasma environments
  • Place of Presentation: Bern, Switzerland
• [Presentation] Optical and Radio Observations of Ionospheric Irregularities in Indonesia (2010)
  • Author(s): Otsuka, Y., et al.
  • Organizer: 2010 International Workshop on Space Weather in Indonesia
  • Place of Presentation: Bandung, Indonesia
• [Presentation] インドネシアにおける沿磁力線不規則構造のVHFレーダー観測 (2010)
  • Author(s): 大塚雄一、塩川和夫、小川忠彦、Effendy
  • Organizer: 第24回 大気圏シンポジウム
  • Place of Presentation: 相模原
• [Presentation] 南北共役点観測による中性・電離大気結合とプラズマファウンテンの研究 (2010)
  • Author(s): 塩川和夫、大塚雄一、野澤悟徳、丸山隆、石井守、久保田実、津川卓也
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張
• [Presentation] 赤道大気レーダーで昼間に観測された高度150km沿磁力線不規則構造の統計解析 (2010)
  • Author(s): 水谷徳仁、大塚雄一、塩川和夫、パトラ、横山竜宏、山本衛
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張
• [Presentation] インドネシアにおける夜間F領域沿磁力線不規則構造のVHFレーダー観測 (2010)
  • Author(s): 大塚雄一, 塩川和夫, 小川忠彦
  • Organizer: 第128回 地球電磁気・地球惑星圏学会
  • Place of Presentation: 那覇
• [Presentation] インドネシアにおける夜間F領域沿磁力線不規則構造のVHFレーダー観測 (2010)
  • Author(s): 大塚雄一、塩川和夫、小川忠彦、Effendy
  • Organizer: 第4回赤道大気レーダーシンポジウム 第157回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] VHF Radar Observations of Field-Aligned Irregularities in Indonesia (2010)
  • Author(s): Y.Otsuka, K.Shiokawa, T.Ogawa, Effendy
  • Organizer: Asia Oceania Geosciences Society (AOGS) 2010
  • Place of Presentation: ハイデラバード、インド
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Indonesia (2010)
  • Author(s): Y.Otsuka, K.Shiokawa, T.Ogawa, Effendy
  • Organizer: AGU 2010 Spring Meeting
  • Place of Presentation: イグアス、ブラジル
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Kototabang, Indonesia (2010)
  • Author(s): Y.Otsuka, T.Ogawa, Effendy
  • Organizer: AP-RASC'10
  • Place of Presentation: 富山
• [Presentation] Perkins and gradient drift instabilities (2010)
  • Author(s): Y.Otsuka
  • Organizer: WORKSHOP Coupling between the Earth's atmospheric and Plasma environments
  • Place of Presentation: スイス、ベルン
• [Presentation] Optical and Radio Observations of Ionospheric Irregularities in Indonesia (2010)
  • Author(s): Y.Otsuka
  • Organizer: 2010 International Workshop on Space Weather in Indonesia
  • Place of Presentation: バンドン、インドネシア
• [Presentation] 電離圏沿磁力線不規則構造のVHFレーダー観測及びファブリ・ペロー干渉計開発の現状 (2009)
  • Author(s): 大塚雄一、塩川和夫、小川忠彦、Effendy
  • Organizer: 第3回赤道大気レーダーシンポジウム,第129回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2009)
  • Author(s): Otsuka, Y., K. Shiokawa, T. Ogawa, and Effendy
  • Organizer: 2009 Joint Assembly
  • Place of Presentation: Toronto, Ontario, Canada
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2009)
  • Author(s): Otsuka, Y., K. Shiokawa, T. Ogawa, and Effendy
  • Organizer: Asia Oceania Geosciences Society (AOGS)
  • Place of Presentation: Singapore
• [Presentation] Super Plasma Fountain and Ionospheric Storms (2009)
  • Author(s): Balan, N. , K. Shiokawa, and Y. Otsuka
  • Organizer: Asia Oceania Geosciences Society (AOGS)
  • Place of Presentation: Singapore
• [Presentation] F3 Layer as an Indicator of Prompt Penetration Electric Field (2009)
  • Author(s): Balan, N., K. Shiokawa, and Y. Otsuka, T. Kikuchi
  • Organizer: Asia Oceania Geosciences Society (AOGS)
  • Place of Presentation: Singapore
• [Presentation] Positive ionospheric storms: 2 -Comparison with observations and IRI (2009)
  • Author(s): Balan, N., D. Vijaya Lekshmi, V. Sreeja, K. Shiokawa, Y. Otsuka, T. Kikuchi, and M. Yamamoto
  • Organizer: IRI2009 Workshop
  • Place of Presentation: Kagoshima, Japan
• [Presentation] F3 layer as an indicator of prompt penetration electric field (2009)
  • Author(s): Balan, N., V. Sreeja, T. S. Batista, K. Lynn, K. Shiokawa, Y. Otsuka, T. Kikuchi and S. Alex
  • Organizer: IRI2009 Workshop
  • Place of Presentation: Kagoshima, Japan
• [Presentation] Occurrence statistics and drifts of daytime 150-km echoes studied using observations from the Equatorial Atmosphere Radar in Indonesia and ionosonde network (2009)
  • Author(s): Mizutani, N., Y. Otsuka, K. Shiokawa, T. Yokoyama, M. Yamamoto, A. K. Patra, T. Maruyama, M. Ishii
  • Organizer: AGU Fall Meeting
  • Place of Presentation: San Francisco
• [Presentation] Variability of equatorial plasma bubbles and spread-F (2009)
  • Author(s): Balan, N., K.Shiokawa, Y.Otsuka
  • Organizer: 第3回赤道大気レーダーシンポジウム第129回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] 赤道大気レーダーで昼間に観測された高度150kmの沿磁力線不規則構造の統計解析 (2009)
  • Author(s): 水谷徳仁、大塚雄一、塩川和夫、横山竜宏、山本衛、Patra Amit、丸山隆、石井守
  • Organizer: 第3回赤道大気レーダーシンポジウム第129回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] 電離圏沿磁力線不規則構造のVHFレーダー観測及びファブリ・ペロー干渉計開発の現状 (2009)
  • Author(s): 大塚雄一、塩川和夫、小川忠彦、Effendy
  • Organizer: 第3回赤道大気レーダーシンポジウム第129回生存圏シンポジウム
  • Place of Presentation: 宇治
• [Presentation] 赤道大気レーダーで昼間に観測される高度150kmの沿磁力線不規則構造の統計解析 (2009)
  • Author(s): 水谷徳仁、大塚雄一、塩川和夫、横山竜宏、山本衛、A.K,, Patra、丸山隆、石井守
  • Organizer: 中間圏・熱圏・電離圏(MTI)研究会
  • Place of Presentation: 京都
• [Presentation] 赤道大気レーダーで昼間に観測された高度150kmの沿磁力線不規則構造 (2009)
  • Author(s): 水谷徳仁
  • Organizer: 第23回 大気圏シンポジウム
  • Place of Presentation: 相模原
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2009)
  • Author(s): Y.Otsuka
  • Organizer: 2009 Joint Assembly
  • Place of Presentation: トロント、カナダ
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2009)
  • Author(s): Y.Otsuka
  • Organizer: Asia Oceania Geosciences Society (AOGS)
  • Place of Presentation: シンガポール
• [Presentation] Spatial Relationship of F-region Field-aligned Irregularities and Medium-scale Traveling Ionospheric Disturbances Observed with the MU Radar and All-sky Airglow Imagers (2009)
  • Author(s): Y.Otsuka
  • Organizer: ICROS-SICE International Joint Conference 2009
  • Place of Presentation: 福岡
• [Presentation] インドネシアにおけるF領域沿磁力線不規則構造のレーダー観測 (2008)
  • Author(s): 大塚雄一、横山竜宏、塩川和夫、小川忠彦、山本衛
  • Organizer: 日本地球惑星科学連合2008年大会
  • Place of Presentation: 幕張
• [Presentation] インドネシアにおけるE領域沿磁力線不規則構造のレーダー観測 (2008)
  • Author(s): 大塚雄一, 水谷徳仁, 小川忠彦
  • Organizer: 第124回地球電磁気・地球惑星圏学会
  • Place of Presentation: 仙台
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Kototabang, Indonesia (2008)
  • Author(s): Otsuka, Y., T. Ogawa, and Effendy
  • Organizer: 12th International Symposium on Equatorial Aeronomy (ISEA-12)
  • Place of Presentation: Crete, Greece
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang, Indonesia (2008)
  • Author(s): Otsuka, Y., T. Ogawa, and Effendy
  • Organizer: Asia Oceania Geosciences Society 2008
  • Place of Presentation: Busan, Korea
• [Presentation] Relationship between medium-scale traveling ionospheric disturbance and sporadic E layer activities in summer night over Japan (2008)
  • Author(s): Otsuka, Y., T. Ogawa, and T. Tsugawa
  • Organizer: Asia Oceania Geosciences Society 2008
  • Place of Presentation: Busan, Korea
• [Presentation] Equatorial GPS Ionospheric Scintillations Over Indonesia and Their Relation to Atmospheric Waves (2008)
  • Author(s): Ogawa, T., Y. Miyoshi, Y. Otsuka, and T. Nakamura
  • Organizer: Asia Oceania Geosciences Society 2008
  • Place of Presentation: Busan, Korea
• [Presentation] 赤道大気レーダーで昼間に観測された高度150km沿磁力線不規則構造 (2008)
  • Author(s): 水谷徳仁
  • Organizer: 第124回 地球電磁気・地球惑星圏学会
  • Place of Presentation: 仙台
• [Presentation] インドネシアにおけるE領域沿磁力線不規則構造のレーダー観測 (2008)
  • Author(s): 大塚雄一
  • Organizer: 第124回 地球電磁気・地球惑星圏学会
  • Place of Presentation: 仙台
• [Presentation] インドネシアにおける電離圏沿磁力線不規則構造のレーダー観測 (2008)
  • Author(s): 大塚雄一
  • Organizer: 第2回赤道大気レーダーシンポジウム(第105回生存圏シンポジウム)
  • Place of Presentation: 宇治
• [Presentation] 赤道大気レーダーで昼間に観測された高度150km沿磁力線不規則構造 (2008)
  • Author(s): 水谷徳仁
  • Organizer: 第2回赤道大気レーダーシンポジウム(第105回生存圏シンポジゥム)
  • Place of Presentation: 宇治
• [Presentation] インドネシアにおける沿磁力線不規則構造のレーダー観測 (2008)
  • Author(s): 大塚雄一
  • Organizer: 中問圏・熱圏・電離圏(MTI)研究会
  • Place of Presentation: 小金井
• [Presentation] 赤道大気レーダーで昼間に観測された高度150kmの沿磁力線不規則構造 (2008)
  • Author(s): 水谷徳仁
  • Organizer: 中間圏・熱圏・電離圏(MTI)研究会
  • Place of Presentation: 小金井
• [Presentation] VHF radar observations of nighttime F-region field-aligned irregularities over Kototabang (2008)
  • Author(s): Y.Otsuka
  • Organizer: 12th International Symposium on Equatorial Aeronomy (ISEA-12)
  • Place of Presentation: クレタ、ギリシャ
• [Presentation] VHF Radar Observations of Nighttime F-Region Field-Aligned Irregularities Over Kototabang (2008)
  • Author(s): Y.Otsuka
  • Organizer: Asia Oceania Geosciences Society 2008
  • Place of Presentation: プサン、韓国
• [Presentation] 赤道大気レーダーで昼間に観測された高度150kmの沿磁力線不規則構造 (2008)
  • Author(s): 水谷徳仁
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張
• [Remarks]
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vhfr/index.html
• [Remarks]
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vhfr/index.html
• [Remarks] インドネシアのVHFレーダーで得られた結果を下記のURLで公開している。
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vhfr/index.html
• [Remarks] において観測データのクイック・ルックを準リアルタイムで公開。
  • URL: http://stdb2.stelab.nagoya-u.ac.jp/vhfr/index.html