ENSO気候変動は超高層大気をどう揺らすのか：成層圏オゾンが果たす役割の解明

• Project/Area Number: 18H01270
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 17010:Space and planetary sciences-related
• Research Institution: Kyushu University
• Principal Investigator: Liu Huixin 九州大学, 理学研究院, 准教授 (70589639)
• Co-Investigator(Kenkyū-buntansha): 山本 衛 京都大学, 生存圏研究所, 教授 (20210560) ; 江口 菜穂 九州大学, 応用力学研究所, 助教 (50378907) ; 陣 英克 国立研究開発法人情報通信研究機構, 電磁波研究所電磁波伝搬研究センター, 主任研究員 (60466240) ; 廣岡 俊彦 九州大学, 理学研究院, 教授 (90253393)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000); Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2018: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 大気圏・電離圏結合 / エルニーニョ / 気候変動 / 潮汐 / オゾン / オゾン変化 / 大気潮汐 / vertical coupling / ENSO / 大気上下結合 / 大気潮汐波 / atmosphere coupling

Outline of Annual Research Achievements

エルニーニョ・南方振動(ENSO)が数百km上空の超高層大気領域（熱圏・電離圏）まで影響を及ぼす。本研究では、この数百km間の上下結合において、成層圏オゾンが駆動する放射・力学過程を、観測データの総合解析と高精度数値モデルを駆使して解明する。今年度は大きな進展があった。具体的に、エルニーニョによる対流圏オゾンの変調が潮汐に与える影響を評価するため、地上から上空までの大気電離層モデルを用いて2つのシミュレーションを行った：ゾーン対称のオゾン密度とエルニーニョパターンの縦断的なオゾン変動。その結果、高度約20kmから約100kmの範囲において、オゾンの変動がDW2潮汐の第1対称モード（D0とDW1）を平均で約+5%（約1%と約4%）強める（減衰させる）ことがわかった。これらの応答はおそらく対流圏オゾンの変調によるものであろう。オゾン変調も第一モードも赤道上にピークを持つので、これらの応答は妥当である。また、第一モードの鉛直波長はオゾン変調の鉛直厚さの約2倍である。この結果から、エルニーニョによるオゾン変調は、オゾン変調の空間構造のために、日周潮汐に数％の影響を与えていることが示唆される。

Research Progress Status

令和3年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和3年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] University of New Hampshire/National Center for Atmosphere Research/Los Alamos National Laboratory(米国)
• [Int'l Joint Research] RMIT University(オーストラリア)
• [Int'l Joint Research] University of Rostok/German Aerospace Center (DLR)(ドイツ)
• [Int'l Joint Research] Chinese Academy of Science/Chinese University of Geology(中国)
• [Journal Article] Evaluation of the empirical scaling factor of Joule heating rates in TIE-GCM with EISCAT measurements. (2024)
  • Author(s): Florian Gunzkofer, Huixin Liu, Gunter Stober, Dimitry Pokhotelov, and Claudia Borries
  • Journal Title: Earth and Space Science Volume: 11 Issue: 4 Pages: 1-10
  • DOI: 10.1029/2023ea003447
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Influence of Mesospheric Gravity Wave Drag on the Formation of Winter Helium Bulge in the Thermosphere (2023)
  • Author(s): Ren Dexin、Lei Jiuhou、Liu Han‐Li、Wang Wenbin、Yue Jia、Liu Huixin
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 128 Issue: 2 Pages: 1-10
  • DOI: 10.1029/2022ja031022
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Impact of Tropospheric Ozone Modulation Due To El Nino on Tides in the MLT (2023)
  • Author(s): Kogure Masaru、Liu Huixin、Jin Hidekatsu
  • Journal Title: Geophysical Research Letters Volume: 50 Issue: 6 Pages: 1-15
  • DOI: 10.1029/2023gl102790
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Numerical Simulations of Metallic Ion Density Perturbations in Sporadic E Layers Caused by Gravity Waves (2023)
  • Author(s): Qiu Lihui、Yamazaki Yosuke、Yu Tao、Becker Erich、Miyoshi Yasunobu、Qi Yifan、Siddiqui Tarique A.、Stolle Claudia、Feng Wuhu、Plane John M. C.、Liang Yu、Liu Huixin
  • Journal Title: Earth and Space Science Volume: 10 Issue: 8 Pages: 1-10
  • DOI: 10.1029/2023ea003030
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Intriguing Aspects of Polar-to-Tropical Mesospheric Teleconnections during the 2018 SSW: A Meteor Radar Network Study (2023)
  • Author(s): Eswaraiah Sunkara、Seo Kyong-Hwan、Kumar Kondapalli Niranjan、Koval Andrey V.、Ratnam Madineni Venkat、Mengist Chalachew Kindie、Chalapathi Gasti Venkata、Liu Huixin、Kwak Young-Sil、Merzlyakov Eugeny、Jacobi Christoph、Kim Yong-Ha、Rao Sarangam Vijaya Bhaskara、Mitchell Nicholas J.
  • Journal Title: Atmosphere Volume: 14 Issue: 8 Pages: 1302-1302
  • DOI: 10.3390/atmos14081302
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long‐Term Support Is Needed for Crucial Ground‐Based Sensor Networks (2023)
  • Author(s): Gannon J. L.、Morley S.、Lugaz N.、Liu H.、Carter B.、Zou S.
  • Journal Title: Space Weather Volume: 21 Issue: 5 Pages: 1-10
  • DOI: 10.1029/2023sw003529
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Solved and unsolved riddles about low-latitude daytime valley region plasma waves and 150-km echoes (2023)
  • Author(s): Chau J. L.、Longley W. J.、Reyes P. M.、Pedatella N. M.、Otsuka Y.、Stolle C.、Liu H.、England S. L.、Vierinen J. P.、Milla M. A.、Hysell D. L.、Oppenheim M. M.、Patra A.、Lehmacher G.、Kudeki E.
  • Journal Title: Frontiers in Astronomy and Space Sciences Volume: 10 Pages: 1-10
  • DOI: 10.3389/fspas.2023.1091319
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Day-to-day variability of the equatorial ionosphere in Asian sector during August?October 2019 (2023)
  • Author(s): Liu Huixin、Otsuka Yuichi、Hozumi Kornyanat、Yu Tao
  • Journal Title: Frontiers in Astronomy and Space Sciences Volume: 10 Pages: 1-10
  • DOI: 10.3389/fspas.2023.1198739
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] New Space Companies Meet a “Normal” Solar Maximum (2023)
  • Author(s): Lugaz Noe、Liu Huixin、Carter Brett A.、Gannon Jennifer、Zou Shasha、Morley Steven K.
  • Journal Title: Space Weather Volume: 21 Issue: 9 Pages: 1-3
  • DOI: 10.1029/2023sw003702
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Low Altitude Tailing Es (LATTE): Analysis of Sporadic‐E Layer Height at Different Latitudes of Middle and Low Region (2023)
  • Author(s): Tang Qiong、Zhou Chen、Liu Huixin、Liu Yi、Zhao Jiaqi、Yu Zhibin、Hu Lianhuan、Zhao Zhengyu、Feng Xueshang
  • Journal Title: Space Weather Volume: 21 Issue: 4 Pages: 1-10
  • DOI: 10.1029/2022sw003323
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Special issue “DynamicEarth: Earth’s interior, surface, ocean, atmosphere, and near space interactions” (2023)
  • Author(s): Stolle C.、Baerenzung J.、Kronberg E. A.、Kusche J.、Liu H.、Shimizu H.
  • Journal Title: Earth, Planets and Space Volume: 75 Issue: 1 Pages: 1-3
  • DOI: 10.1186/s40623-023-01893-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Long-term studies of the summer wind in the mesosphere and lower thermosphere at middle and high latitudes over Europe (2023)
  • Author(s): Juliana Jaen, Toralf Renkwitz, Huixin Liu, Christoph Jacobi, Robin Wing, Ales Kuchar, Masaki Tsutsumi, Njal Gulbrandsen, and Jorge L. Chau
  • Journal Title: Atmospheric Chemistry and Physics Volume: 23 Issue: 23 Pages: 14871-14887
  • DOI: 10.5194/acp-23-14871-2023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ionosphere-thermosphere interaction (2022)
  • Author(s): Huixin Liu, S. England
  • Journal Title: Cross-scale coupling and energy transfer in the magnetosphere-ionosphere-thermosphere system Volume: 1 Pages: 441-546
  • DOI: 10.1016/b978-0-12-821366-7.00003-2
  • ISBN: 9780128213667
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Thermospheric Density Perturbations Produced by Traveling Atmospheric Disturbances During August 2005 Storm (2022)
  • Author(s): Pham K. H.、Zhang B.、Sorathia K.、Dang T.、Wang W.、Merkin V.、Liu H.、Lin D.、Wiltberger M.、Lei J.、Bao S.、Garretson J.、Toffoletto F.、Michael A.、Lyon J.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 127 Issue: 2
  • DOI: 10.1029/2021ja030071
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ionospheric Topside Diffusive Flux and the Formation of Summer Nighttime Ionospheric Electron Density Enhancement Over Millstone Hill (2022)
  • Author(s): Cai Yihui、Yue Xinan、Wang Wenbin、Zhang Shun‐Rong、Liu Huixin、Lei Jiuhou、Ren Zhipeng、Chen Yiding、Ding Feng、Ren Dexin
  • Journal Title: Geophysical Research Letters Volume: 49 Issue: 4
  • DOI: 10.1029/2021gl097651
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] SpaceX: Sailing Close to the Space Weather? (2022)
  • Author(s): Hapgood Mike、Liu Huixin、Lugaz Noe
  • Journal Title: Space Weather Volume: 20 Issue: 3
  • DOI: 10.1029/2022sw003074
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Contribution of the lower atmosphere to the day-to-day variation of thermospheric density (2022)
  • Author(s): Yue Jia、Yu Wandi、Pedatella Nick、Bruinsma Sean、Wang Ningchao、Liu Huixin
  • Journal Title: Advances in Space Research Volume: 72 Issue: 12 Pages: 5460-5475
  • DOI: 10.1016/j.asr.2022.06.011
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Determining the Origin of Tidal Oscillations in the Ionospheric Transition Region With EISCAT Radar and Global Simulation Data (2022)
  • Author(s): GUenzkofer F.、Pokhotelov D.、Stober G.、Liu H.、Liu H.‐L.、Mitchell N. J.、Tjulin A.、Borries C.
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 127 Issue: 10
  • DOI: 10.1029/2022ja030861
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Global Structure and Seasonal Variations of the Tidal Amplitude in Sporadic‐E Layer (2022)
  • Author(s): Tang Qiong、Zhou Chen、Liu Huixin、Du Zhitao、Liu Yi、Zhao Jiaqi、Yu Zhibin、Zhao Zhengyu、Feng Xueshang
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 127 Issue: 10
  • DOI: 10.1029/2022ja030711
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Altitude Extension of the NCAR‐TIEGCM (TIEGCM‐X) and Evaluation (2022)
  • Author(s): Cai Yihui、Yue Xinan、Wang Wenbin、Zhang Shun‐Rong、Liu Huixin、Lin Dong、Wu Haonan、Yue Jia、Bruinsma Sean L.、Ding Feng、Ren Zhipeng、Liu Libo
  • Journal Title: Space Weather Volume: 20 Issue: 11
  • DOI: 10.1029/2022sw003227
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Mechanisms for Zonal Mean Wind Responses in the Thermosphere to Doubled CO2 Concentration (2022)
  • Author(s): Kogure Masaru、Liu Huixin、Tao Chihiro
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 127 Issue: 9 Pages: 1-14
  • DOI: 10.1029/2022ja030643
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sudden stratospheric warming impacts on the ionosphere-thermosphere system A review of recent progress (2022)
  • Author(s): Goncharenko, L., V. L. Harvey, Huixin Liu, N. Pedatella,
  • Journal Title: Geophysical Monograph 260
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Space Weather as the Nexus of Applied and Fundamental Space Science: The Need for Separate Funding Mechanisms and Definition (2021)
  • Author(s): Space Weather Editors
  • Journal Title: Space Weather Volume: 19 Issue: 2
  • DOI: 10.1029/2020sw002695
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Characteristics of Summer Descending Sporadic E Layer Observed With the Ionosondes in the China Region (2021)
  • Author(s): Qiu Lihui、Zuo Xiaomin、Yu Tao、Sun Yangyi、Liu Huixin、Sun Lingfeng、Zhao Biqiang
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 126 Issue: 3
  • DOI: 10.1029/2020ja028729
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Gravity Wave Weakening During the 2019 Antarctic Stratospheric Sudden Warming (2021)
  • Author(s): Kogure Masaru、Yue Jia、Liu Huixin
  • Journal Title: Geophysical Research Letters Volume: 48 Issue: 8
  • DOI: 10.1029/2021gl092537
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Geomagnetic Activity Effects on CO 2 ‐Driven Trend in the Thermosphere and Ionosphere: Ideal Model Experiments With GAIA (2021)
  • Author(s): Liu Huixin、Tao Chihiro、Jin Hidekatsu、Abe Takamichi
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 126 Issue: 1
  • DOI: 10.1029/2020ja028607
  • Peer Reviewed / Open Access
• [Journal Article] Climatology Analysis of the Daytime Topside Ionospheric Diffusive Flux Based on Incoherent Scatter Radar Observations at Millstone Hill (2021)
  • Author(s): Cai Yihui、Wang Wenbin、Zhang Shun‐Rong、Yue Xinan、Ren Zhipeng、Liu Huixin
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 126 Issue: 10
  • DOI: 10.1029/2021ja029222
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] DW1 Tidal Enhancements in the Equatorial MLT During 2015 El Ni?o: The Relative Role of Tidal Heating and Propagation (2021)
  • Author(s): Kogure Masaru、Liu Huixin
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 126 Issue: 7
  • DOI: 10.1029/2021ja029342
  • Peer Reviewed / Open Access
• [Journal Article] Special issue “Solar terrestrial environment prediction: toward the synergy of science and forecasting operation of space weather and space climate” (2021)
  • Author(s): Kusano Kanya、Ishii Mamoru、Berger Tomas、Miyoshi Yoshizumi、Yoden Shigeo、Liu Huixin、Onsager Terry、Ichimoto Kiyoshi
  • Journal Title: Earth, Planets and Space Volume: 73 Issue: 1
  • DOI: 10.1186/s40623-021-01530-0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Possible Role of Turbopause on Sporadic‐E Layer Formation at Middle and Low Latitudes (2021)
  • Author(s): Tang Qiong、Zhou Chen、Liu Huixin、Liu Yi、Zhao Jiaqi、Yu Zhibin、Zhao Zhengyu、Feng Xueshang
  • Journal Title: Space Weather Volume: 19 Issue: 12
  • DOI: 10.1029/2021sw002883
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Machine‐Learning Research in the Space Weather Journal: Prospects, Scope, and Limitations (2021)
  • Author(s): Lugaz Noe、Liu Huixin、Hapgood Mike、Morley Steven
  • Journal Title: Space Weather Volume: 19 Issue: 12
  • DOI: 10.1029/2021sw003000
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Interhemispheric differences of mesosphere lower thermosphere winds and tides investigated from three whole-atmosphere models and meteor radar observations (2021)
  • Author(s): Stober Gunter、Kuchar Ales、Pokhotelov Dimitry、Liu Huixin、Liu Han-Li、Schmidt Hauke、Jacobi Christoph、Baumgarten Kathrin、Brown Peter、Janches Diego、Murphy Damian、Kozlovsky Alexander、Lester Mark、Belova Evgenia、Kero Johan、Mitchell Nicholas
  • Journal Title: Atmospheric Chemistry and Physics Volume: 21 Issue: 18 Pages: 13855-13902
  • DOI: 10.5194/acp-21-13855-2021
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Day‐to‐Day Variability of the Thermosphere and Ionosphere (2021)
  • Author(s): Liu Huixin、Yamazaki Yosuke、Lei Jiuhou
  • Journal Title: Space Physics and Aeronomy Collection Volume 4 Volume: 261 Pages: 275-300
  • DOI: 10.1002/9781119815631.ch15
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Dipolar elementary current systems for ionospheric current reconstruction at low and middle latitudes (2020)
  • Author(s): Vanham?ki Heikki、Maute Astrid、Alken Patrick、Liu Huixin
  • Journal Title: Earth, Planets and Space Volume: 72 Issue: 1 Pages: 1-15
  • DOI: 10.1186/s40623-020-01284-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Circulation and Tides in a Cooler Upper Atmosphere: Dynamical Effects of CO 2 Doubling (2020)
  • Author(s): Liu Huixin、Tao Chihiro、Jin Hidekatsu、Nakamoto Yusuke
  • Journal Title: Geophysical Research Letters Volume: 47 Issue: 10
  • DOI: 10.1029/2020gl087413
  • Peer Reviewed / Open Access
• [Journal Article] Ionospheric F Layer Scintillation Weakening as Observed by COSMIC/FORMOSAT‐3 During the Major Sudden Stratospheric Warming in January 2013 (2020)
  • Author(s): Yu Tao、Ye Hailun、Liu Huixin、Xia Chunliang、Zuo Xiaomin、Yan Xiangxiang、Yang Na、Sun Yangyi、Zhao Biqiang
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 125 Issue: 9 Pages: 1-10
  • DOI: 10.1029/2019ja027721
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Interhemispheric Transport of the Ionospheric F Region Plasma During the 2009 Sudden Stratosphere Warming (2020)
  • Author(s): Zhang Ruilong、Liu Libo、Liu Huixin、Le Huijun、Chen Yiding、Zhang Hui
  • Journal Title: Geophysical Research Letters Volume: 47 Issue: 6 Pages: 1-10
  • DOI: 10.1029/2020gl087078
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] First Global‐Scale Synoptic Imaging of Solar Eclipse Effects in the Thermosphere (2020)
  • Author(s): Aryal Saurav、Evans J. S.、Correira John、Burns Alan G.、Wang Wenbin、Solomon Stanley C.、Laskar Fazlul I.、McClintock William E.、Eastes Richard W.、Dang Tong、Lei Jiuhou、Liu Huixin、Jee Geonhwa
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 125 Issue: 9
  • DOI: 10.1029/2020ja027789
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Potential for the measurement of mesosphere and lower thermosphere (MLT) wind, temperature, density and geomagnetic field with Superconducting Submillimeter-Wave Limb-Emission Sounder 2 (SMILES-2) (2020)
  • Author(s): P. Baron, S. Ochiai, E. Dupuy, R. Larsson, H. Liu, N. Manago, D. Murtagh, S. Oyama, H. Sagawa, A. Saito, T. Sakazaki, M. Shiotani, and M. Suzuki
  • Journal Title: Atmospheric Measurement Techniques Volume: 13 Issue: 1 Pages: 219-237
  • DOI: 10.5194/amt-13-219-2020
  • NAID: 120006895412
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Vertical structure of terdiurnal tides in the Antarctic MLT region: 15-year observation over Syowa (69S, 39E) (2019)
  • Author(s): Huixin Liu, M. Tsutsumi, Hanli Liu
  • Journal Title: Geophys. Res. Lett. Volume: 46 Pages: 1-8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Precursor effect of March 11 2011 off the coast of Tohoku earthquake on high and low latitude ionospheres and its possible disturbing mechanism (2019)
  • Author(s): K. Oyama, C. H. Chen, L. Bankov, D. Minakshi, K. Ryu, J.Y. Liu, Huixin Liu
  • Journal Title: Advances in Space Research Volume: 12 Issue: 8 Pages: 1-10
  • DOI: 10.1016/j.asr.2018.12.042
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Observations of low-latitude travelling ionospheric disturbances by a 630.0-nm airglow imager and the CHAMP satellite over Indonesia (2019)
  • Author(s): A. C. Moral, K. Shiokawa, S. Suzuki, Huixin Liu, Y. Otsuka, C. Y. Yatini
  • Journal Title: J. Geophys. Res Volume: 124 Pages: 1-16
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] El Nino Southern Oscillation effect on quasi-biennial oscillations of temperature diurnal tides in the mesosphere and lower thermosphere (2018)
  • Author(s): Sun, Y., Huixin Liu, Yasunobu Miyoshi, Libo Liu, Loren C. Chang
  • Journal Title: Earth, Planets and Space Volume: 70 Issue: 1 Pages: 1-10
  • DOI: 10.1186/s40623-018-0832-6
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Generation of electron acoustic waves in the topside ionosphere from coupling with kinetic Alfven waves: a new electron energization mechanism (2018)
  • Author(s): R. Shi, B. Ni, D. Summers, Huixin Liu, Y. Yoshikawa, B. Zhang
  • Journal Title: Geophysical Research Letters, Volume: 45 Pages: 1-8
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Akatsuki at Venus: the first year of scientific operation (2018)
  • Author(s): M. Nakamura, D. Titov, K. McGouldrick, P. Drossart, J.L. Bertaux, Huixin Liu
  • Journal Title: Earth, Planets and Space Volume: 70 Issue: 1 Pages: 1-10
  • DOI: 10.1186/s40623-018-0916-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Interannual Variability of the Daytime Equatorial Ionospheric Electric Field (2018)
  • Author(s): Y. Yamazaki, C. Stolle, J. Matzka, Huixin Liu, C. Tao
  • Journal Title: Journal of Geophysical Research Volume: 123 Pages: 1-10
• [Presentation] long-term variations in the ionospheric Es layer and F layer (2023)
  • Author(s): Huixin Liu
  • Organizer: Symposium of the Center for Geomagnetic Storms
  • Int'l Joint Research / Invited
• [Presentation] long-term trend in the ionosphere over Japan and Antarctica (2023)
  • Author(s): Huixin Liu
  • Organizer: URSI
  • Int'l Joint Research / Invited
• [Presentation] Atmosphere-Ionosphere coupling and its role in space weather (2023)
  • Author(s): Huixin Liu
  • Organizer: SCOSTEP
  • Int'l Joint Research / Invited
• [Presentation] DW1 tidal enhancements in the equatorial MLT during 2015 El Nino: the relative role of tidal heating and propagation (2023)
  • Author(s): Huixin Liu
  • Organizer: CEDAR
  • Int'l Joint Research / Invited
• [Presentation] Response of thermosphere and ionosphere to increasing CO2 (2023)
  • Author(s): Huixin Liu
  • Organizer: NASA
• [Presentation] Response of thermosphere and ionosphere to increasing CO2 (2023)
  • Author(s): Liu Huixin
  • Organizer: NASA Special Seminar
  • Int'l Joint Research / Invited
• [Presentation] DW1 tidal enhancements in the equatorial MLT during 2015 El Nino: the relative role of tidal heating and propagation (2022)
  • Author(s): Liu Huixin
  • Organizer: STP-15 symposium
  • Int'l Joint Research / Invited
• [Presentation] Atmosphere-Ionosphere coupling and its role space weather (2022)
  • Author(s): Liu Huixin
  • Organizer: 8th IAGA/ICMA/SCOSTEP workshop on vertical coupling in the atmosphere-ionosphere system
  • Int'l Joint Research / Invited
• [Presentation] Response of thermosphere and ionosphere to increasing CO2 (2022)
  • Author(s): Liu Huixin
  • Organizer: International symposium on Equatorial Aeronomy
  • Int'l Joint Research / Invited
• [Presentation] Faster circulation in a cooler upper atmosphere: GAIA simulation with doubled CO2 (2021)
  • Author(s): Liu Huixin
  • Organizer: COSPAR
  • Int'l Joint Research / Invited
• [Presentation] Geomagnetic activity effects on the CO2-driven trend in the ionosphere: GAIA experiments (2021)
  • Author(s): Liu Huixin
  • Organizer: EGU
  • Int'l Joint Research / Invited
• [Presentation] The upper atmosphere and space weather (2021)
  • Author(s): Liu Huixin
  • Organizer: SPP symposium
  • Int'l Joint Research / Invited
• [Presentation] The atmosphere-ionosphere coupling and space weather (2021)
  • Author(s): Huixin Liu
  • Organizer: German DFG Priority Program symposium
  • Int'l Joint Research / Invited
• [Presentation] Gravity wave weakening during the 2019 Antarctic stratospheric sudden warming (2021)
  • Author(s): M. Kogure, Huixin Liu
  • Organizer: Japan Geophysical Union
  • Int'l Joint Research / Invited
• [Presentation] How does long-term changes in geomagnetic activity regulate the CO2-driven trend in the thermosphere and ionosphere? (2021)
  • Author(s): Huixin Liu
  • Organizer: IAGA-IAMAS joint meeting
  • Int'l Joint Research / Invited
• [Presentation] Geomagnetic activity effects on CO2-driven trend in the ionosphere: GAIA experiments (2021)
  • Author(s): Huixin Liu
  • Organizer: European Geophysical Union
  • Int'l Joint Research / Invited
• [Presentation] Circulation and tides in a cooler upper atmosphere: dynamical effects of CO2 doubling (2021)
  • Author(s): Huixin Liu
  • Organizer: COSPAR
  • Int'l Joint Research / Invited
• [Presentation] The invisible ionosphere in the sky, SGEPSS annual meeting (2020)
  • Author(s): Liu Huixin
  • Organizer: SGEPSS
  • Invited
• [Presentation] The data policy of American geophysical union (2020)
  • Author(s): Liu Huixin
  • Organizer: SGEPSS
  • Invited
• [Presentation] ENSO effects on MLT diurnal tides: a 21-year reanalysis-driven GAIA model simulation (2019)
  • Author(s): Huixin Liu
  • Organizer: AGU Champman Conference
  • Int'l Joint Research
• [Presentation] Plasma blobs and bubbles concurrently observed by ROCSAT-1 and ionosonde in Equatorial Ionization Anomaly region in the Asian-Oceanian sector (2019)
  • Author(s): Huixin Liu
  • Organizer: AGU Champman Conference
  • Int'l Joint Research
• [Presentation] Gravity waves and its role in seeding equatorial plasma bubbles (2019)
  • Author(s): Huixin Liu
  • Organizer: 150 km Echo (ISSI international focus workshop)
  • Int'l Joint Research
• [Presentation] Medium-Scale gravity waves at the bottom side F region (2018)
  • Author(s): Huixin Liu
  • Organizer: AGU
  • Int'l Joint Research
• [Presentation] ENSO effects on MLT diurnal tides: a 21-year reanalysis-driven GAIA model simulation (2018)
  • Author(s): Huixin Liu
  • Organizer: AOGS
  • Int'l Joint Research
• [Remarks] 研究業績
  • URL: http://hyoka.ofc.kyushu-u.ac.jp/search/details/K004385/research.html#3387926360