Atmospheric tidal variabilities during ENSO

• Project/Area Number: 17KK0095
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research)
• Allocation Type: Multi-year Fund
• Research Field: Space and upper atmospheric physics
• Research Institution: Kyushu University
• Principal Investigator: Liu Huixin 九州大学, 理学研究院, 教授 (70589639)
• Project Period (FY): 2018 – 2023
• Project Status: Completed (Fiscal Year 2023)
• Budget Amount: ¥10,010,000 (Direct Cost: ¥7,700,000、Indirect Cost: ¥2,310,000)
• Keywords: 大気圏・電離圏結合 / エルニーニョ / 大気潮汐 / オゾン / 大気波動 / エルニーニョ・南方振動 / 大気上下結合 / Atmosphere tides / ENSO / atmosphere coupling

Outline of Final Research Achievements

The El Nino-Southern Oscillation (ENSO), an interaction phenomenon between the troposphere and the ocean, has been found to affect the upper atmospheric region from 100 km to 1000 km altitude through long-term satellite observations and is a research topic of significant interest. In this study, we investigate the mechanism of the terrestrial connection by quantifying the radiative and latent heat variations associated with changes in water vapor due to rainfall during ENSO using numerical simulations, and clarify the causes of atmospheric tidal wave fluctuations. The coupling process from sea level to the upper atmosphere in El Nino climate change is clarified, which is expected to improve space weather prediction in the ionosphere and to lead to new developments in the overall atmospheric vertical coupling study.

Academic Significance and Societal Importance of the Research Achievements

本国際共同研究では、世界に先駆けて、ENSOによる超高層大気変動の生成機構の解明を目指している。最先端大気モデルを駆使した数値シミュレーションによって、まだ研究が行われてないENSOに伴う電離圏熱圏変動観測のギャップを埋め、上下大気結合力学過程が明らかになるものと期待される。本研究により大気中の結合過程の全球描像を得ることで、この地球環境研究における新しい分野の構築と発展を促し、その成果は宇宙天気予測の向上に繋がればと考えている。

Research Products

• [Int'l Joint Research] 国立大気研究センター（NCAR）(米国) (2018)
• [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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] Horizontal structure of convergent wind shear associated with sporadic E layers over East Asia (2023)
  • Author(s): 10.Qiu, L. H., Lu, X., Yu, T., Yamazaki, Y., Huixin Liu, Sun, Y.-Y., Wu, H. N., Zuo, X. M., Yan, X. X., Yu, Y., and Qi, Y. F..
  • Journal Title: Earth and Planetary Physics Volume: 7 Issue: 5 Pages: 548-557
  • DOI: 10.26464/epp2023071
  • 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] The Future of Space Weather Prediction and Forecasting (2023)
  • Author(s): Mannucci Anthony、Bortnik Jacob、Cid Consuelo、Gulyaeva Tamara、Liu Huixin、McGranaghan Ryan、Sharma A. Surjalal、Spence Harlan、Tsagouri Ioanna、Tsurutani Bruce、Verkhoglyadova Olga
  • Journal Title: Vol. 55, Issue 3 (Heliophysics 2024 Decadal Whitepapers) Volume: 1 Pages: 1-6
  • DOI: 10.3847/25c2cfeb.3ea9f658
  • 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] 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] Geomagnetic activity effects on CO2-driven trend in the thermosphere and ionosphere: ideal model experiments with GAIA (2021)
  • Author(s): Huixin Liu, C. Tao, H. Jin, T. Abe
  • Journal Title: J. Geophys. Res. Volume: 126 Pages: 1-10
  • Peer Reviewed / Open Access
• [Journal Article] The characteristics of summer descending sporadic E layer observed with the ionosondes in the China region (2021)
  • Author(s): L. Qiu, X. Zuo, T. Yu, Y. Sun, Huixin Liu, L. Sun, B. Zhao
  • Journal Title: J. Geophys. Res. Volume: 126 Pages: 1-15
  • Peer Reviewed / 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 CO2-doubling (2020)
  • Author(s): Huixin Liu, C. Tao, H. Jin, Y. Nakamoto
  • Journal Title: Geophys. Res. Lett Volume: 47 Pages: 1-10
  • Peer Reviewed / Open Access
• [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] Interhemispheric transport of the ionospheric F region plasma during the 2009 sudden stratosphere warming (2020)
  • Author(s): Zhang, R., L. Liu, Huixin Liu
  • Journal Title: Geophys. Res. Lett Volume: 47 Pages: 1-10
• [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): Moral, A. C., K. Shiokawa, S. Suzuki, Huixin Liu, Y. Otsuka, C. Y. Yatini
  • Journal Title: J. Geophys. Res Volume: 124 Pages: 1-15
  • Peer Reviewed / 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: 2364-2371
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Global sounding of F region irregularities by COSMIC during a geomagnetic storm (2019)
  • Author(s): Hocke Klemens、Liu Huixin、Pedatella Nicholas、Ma Guanyi
  • Journal Title: Annales Geophysicae Volume: 37 Issue: 2 Pages: 235-242
  • DOI: 10.5194/angeo-37-235-2019
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Nino-Southern Oscillation effect on ionospheric tidal/SPW amplitude in 2007?2015 FORMOSAT-3/COSMIC observations (2019)
  • Author(s): Sun Yang-Yi、Liu Huixin、Miyoshi Yasunobu、Chang Loren C.、Liu Libo
  • Journal Title: Earth, Planets and Space Volume: 71 Issue: 1 Pages: 1-9
  • DOI: 10.1186/s40623-019-1009-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Plasma blobs concurrently observed with bubbles in the Asian-Oceanian sector during solar maximum (2019)
  • Author(s): Wang, Z., Huixin Liu, J. Shi, G. Wang, X. Wang
  • Journal Title: J. Geophys. Res Volume: 124 Pages: 1-10
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Thermosphere density cells at high latitudes as observed by GOCE satellite: preliminary results (2019)
  • Author(s): Weng, L, J. Lei, Huixin Liu, X. Dou, H. Fang
  • Journal Title: Geophys. Res. Lett Volume: 46 Pages: 1-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Special issue “Recent Advances in MST and EISCAT/Ionospheric Studies ? Special Issue of the Joint MST15 and EISCAT18 Meetings, May 2017” (2019)
  • Author(s): Yamamoto Mamoru、Hocking Wayne K.、Nozawa Satonori、Vierinen Juha、Liu Huixin、Nishitani Nozomu
  • Journal Title: Earth, Planets and Space Volume: 71 Issue: 1 Pages: 1-1
  • DOI: 10.1186/s40623-019-1070-2
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Seeding of equatorial plasma bubbles by vertical neutral wind (2019)
  • Author(s): Yokoyama, T., H. Jin, H. Shinagawa, Huixin Liu
  • Journal Title: Geophys. Res. Lett Volume: 46 Pages: 7088-7095
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Long‐Term Trend of Topside Ionospheric Electron Density Derived From DMSP Data During 1995?2017 (2019)
  • Author(s): Cai Yihui、Yue Xinan、Wang Wenbin、Zhang Shunrong、Liu Libo、Liu Huixin、Wan Weixing
  • Journal Title: Journal of Geophysical Research: Space Physics Volume: 124 Issue: 12 Pages: 10708-10727
  • DOI: 10.1029/2019ja027522
  • 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] 小山ひさ子氏: アマチュア天文家から 世界的な太陽観測者へ の道程 (2019)
  • Author(s): Huixin Liu, H. Hayakawa, J. Isa,
  • Journal Title: 天文月報 Volume: 112 Pages: 193-198
  • Peer Reviewed / Open Access
• [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: 1-10
  • 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
  • Peer Reviewed / Int'l Joint Research
• [Presentation] long-term trend in the ionosphere over Japan and Antarctica (2023)
  • Author(s): Liu Huixin
  • Organizer: CGS symposium
  • Int'l Joint Research / Invited
• [Presentation] long-term trend in the ionosphere over Japan and Antarctica (2023)
  • Author(s): Liu Huixin
  • Organizer: URSI2023
  • 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): Liu Huixin
  • Organizer: CEDAR workshop
  • Int'l Joint Research / Invited
• [Presentation] Atmosphere-Ionosphere coupling and its role in space weather (2023)
  • Author(s): Liu Huixin
  • Organizer: SCOSTEP Presto workshop
  • Int'l Joint Research / Invited
• [Presentation] What happens to a cooled thermosphere? (2023)
  • Author(s): Liu Huixin
  • Organizer: AGU2023
  • Int'l Joint Research
• [Presentation] Response of thermosphere and ionosphere to increasing CO2 (2023)
  • Author(s): Liu Huixin
  • Organizer: NASA special seminar
  • Int'l Joint Research / Invited
• [Presentation] Response of thermosphere and ionosphere to increasing CO2 (2022)
  • Author(s): Liu Huixin
  • Organizer: International Symposium for Equatorial Aeronomy
  • 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] 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
  • Int'l Joint Research / Invited
• [Presentation] ENSO influence on the thermosphere and ionosphere (2022)
  • Author(s): Liu Huixin
  • Organizer: SGEPSS fall meeting
• [Presentation] Day-to-day variability of equatorial ionosphere during 2019 Antarctic SSW (2022)
  • Author(s): Liu Huixin
  • Organizer: JpGU
• [Presentation] DW1 Tidal Enhancements in the equatorial MLT during 2015 El Nino: the relative role of tropsopheric heating and propagation, (2021)
  • Author(s): Masaru Kogure, Huixin Liu
  • Organizer: JpGU
• [Presentation] Geomagnetic Activity Effects on CO2-Driven Trend in the Thermosphere and Ionosphere: Ideal Model Experiments With GAIA (2021)
  • Author(s): Huixin Liu, Chihiro Tao, Hidekatsu Jin,
  • Organizer: JpGU
• [Presentation] Faster Circulation in a cooler upper atmosphere:GAIA simulation with doubled CO2 (2021)
  • Author(s): Huixin Liu
  • Organizer: 43rd COSPAR scientific assembly 2021
  • Int'l Joint Research / Invited
• [Presentation] Circulation and Tides in a Cooler Upper Atmosphere: Dynamical Effects of CO2 Doubling (2020)
  • Author(s): Huixin Liu
  • Organizer: American Geophysical Union
  • Int'l Joint Research
• [Presentation] Circulation and Tides in a Cooler Upper Atmosphere: Dynamical Effects of CO2 Doubling (2020)
  • Author(s): Huixin Liu
  • Organizer: Japan Geophysical Union
  • Int'l Joint Research
• [Presentation] The Earth's upper atmosphere and space weather (2020)
  • Author(s): Huixin Liu
  • Organizer: Japan Geophysical Union
  • Int'l Joint Research / Invited
• [Presentation] The Ionosphere and space weather (2020)
  • Author(s): Huixin Liu
  • Organizer: SGEPSS
  • Invited
• [Presentation] Vertical structure of terdiurnal tides in the Antarctic MLT region: 15-year observation over Syowa (2019)
  • Author(s): Liu Huixin
  • Organizer: JpGU meeting
  • Int'l Joint Research
• [Presentation] Vertical structure of terdiurnal tides in the Antarctic MLT region: 15-year observation over Syowa (2019)
  • Author(s): Liu Huixin
  • Organizer: IUGG, MOntreal
  • Int'l Joint Research / Invited
• [Presentation] Perturbation of the Ionosphere-Thermosphere system due to the July 2, 2019 total solar eclipse as observed by the Global-scale Observations of the Limb and Disk (GOLD) mission (2019)
  • Author(s): Aryal S., T. Dang, J. Lei, H. Liu, G. Jee, W. Wang, A. Burns, S. Solomon, J. S. Evans, V. Veibell, A. Krywonons, W. McClintock, R. Eastes
  • Organizer: AGU fall meeting
  • Int'l Joint Research
• [Presentation] Interannual and long-term variability of atmospheric tides in GAIA model and its comparison with ground and space-based observations (2019)
  • Author(s): Liu Huixin, Singh, D
  • Organizer: AGU fall meeting
  • Int'l Joint Research
• [Presentation] Reponses of thermosphere and ionosphere to CO2 increase: composition and dynamical processes simulated by the GAIA model (2019)
  • Author(s): Liu Huixin
  • Organizer: AGU fall meeting
  • 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] 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] 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
• [Presentation] Gravity waves and its role in seeding equatorial plasma bubbles (2018)
  • Author(s): Huixin Liu
  • Organizer: JpGU
  • Int'l Joint Research
• [Book] Ionosphere dynamics and applications (2021)
  • Author(s): Goncharenko, L., V. L. Harvey, Huixin Liu, N. Pedatella
  • Total Pages: 50
  • Publisher: AGU
  • ISBN: 9781119507550
• [Book] Upper Atmosphere Dynamics and Energetics (2021)
  • Author(s): Huixin Liu, Y. Yamazaki, J. Lei
  • Total Pages: 50
  • Publisher: AGU
  • ISBN: 9781119507567
• [Remarks] 研究業績
  • URL: http://hyoka.ofc.kyushu-u.ac.jp/search/details/K004385/research.html#3387926360