SA012
Ionospheric Disturbances during Extreme Space Weather Conditions

Session ID#: 159526

Session Description:
Ionospheric disturbances associated with extreme space weather form in response to phenomena on the Sun such as solar flares, energetic proton events, and coronal mass ejections. Examples of disturbances in the ionosphere include short wave fadeout, polar cap absorption, irregularity formation, intense ionospheric currents, and Interplanetary Shock driven Storm Sudden Commencements. The ionospheric response to extreme space weather conditions can severely disrupt critical infrastructure such as HF and space-based communications, can affect Over-the-Horizon Radar performance and can degrade GNSS accuracy and availability.  This session invites papers that describe recent progress and our current understanding of the physical mechanisms governing ionospheric disturbances and their sources from the Sun to the ground, as well as the resulting impact on technology. Submissions focusing on observations, theory, modeling and prediction are welcome.
Index Terms:

7934 Impacts on technological systems [SPACE WEATHER]
7944 Ionospheric effects on radio waves [SPACE WEATHER]
7949 Ionospheric storms [SPACE WEATHER]
7974 Solar effects [SPACE WEATHER]

Primary Convener:  Shibaji Chakraborty, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Conveners:  Liying Qian, National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, Lidia Nikitina, Natural Resources Canada, Ottawa, ON, Canada, Richard Parris, Air Force Research Laboratory, Albuquerque, NM, United States and Kate Zawdie, Naval Research Laboratory, Washington, DC, United States
 
The Global Thermosphere and Ionosphere Responses to the November, 20, 2003 Extreme Storm Event (Invited) (1050843)
Wenbin Wang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, Dong Lin, NCAR, Boulder, United States, Viacheslav G Merkin, The Johns Hopkins University, APL, Laurel, United States and Meers M Oppenheim, Boston University, Center for Space Physics, Boston, MA, United States
 
A New Model for Ionospheric Absorption of HF Radio waves due to Proton Forcing (1064435)
Anton Goertz, Los Alamos National Laboratory, Intelligence And Space Research, Los Alamos, NM, United States and Christopher Andrew Jeffery, Los Alamos National Laboratory, Los Alamos, NM, United States
 
Terrestrial Ionosphere Response due to the Geomagnetic Storm in September 2017 (1065566)
Paulo Roberto Fagundes, University of Vale do Paraíba, Fisica & Astronomia, Sao Jose dos Campos, Brazil and Vera Y Tsali-Brown, University of Vale do Paraíba, Fisica $ Astronomia, Sao Jose dos Campos, Brazil
 
The evaluation of the response in the Earthʼs lower ionosphere due to the solar flares using the GAIA model (1083365)
Shinnosuke Kitajima1, Kyoko Watanabe1, Shohei Nishimoto1, Hidekatsu Jin2, Chihiro Tao2 and Michi Nishioka2, (1)National Defense Academy of Japan, Yokosuka, Japan, (2)NICT National Institute of Information and Communications Technology, Tokyo, Japan
 
Responses of Global Equatorial/Low-Latitude Ionosphere to CME-driven and CIR-driven Geomagnetic Storms (1087470)
Andrew O Akala, University of Lagos, Lagos, Nigeria and Yuichi Otsuka, Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan
 
Geomagnetic Substorms and Solar Eclipses: A Mutual Information Analysis (1093355)
Shane Coyle, Virginia Polytechnic Institute and State University, Blacksburg, United States, Joseph B. H. Baker, Virginia Tech, Blacksburg, VA, United States, Michael Hartinger, Space Science Institute Boulder, Boulder, United States, Shibaji Chakraborty, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and C. Robert Clauer, National Institute of Aerospace, Hampton, VA, United States
 
A Storm-time Global Electron Density Reconstruction Model in 3-dimensions Based on Machine Learning Techniques (1101778)
John Bosco Habarulema, South African National Space Agency, Hermanus, South Africa and Daniel Okoh, Center for Atmospheric Research, National Space Research & Development Agency, Kogi State University Campus, Anyigba 270109, Nigeria., Anyigba, Nigeria
 
Latitudinal distribution of the SAPS structure observed by the SuperDARN Hokkaido Pair of radars (1103247)
Nozomu Nishitani and Tomoaki Hori, ISEE, Nagoya University, Nagoya, Japan
 
The Doppler Shift of Farley-Buneman Waves Under Strongly Disturbed Conditions. (1119413)
Jean-Pierre St-Maurice, University of Saskatchewan, Saskatoon, SK, Canada and Magnus F Ivarsen, University of Oslo, Oslo, Norway
 
EUV Dynamic Spectra of Large Solar Flares and Their Effects on Total Electron Content (1133949)
Kyoko Watanabe1, Shohei Nishimoto1, Hidekatsu Jin2, Toshiki Kawai3, Shinsuke Imada4, Tomoko Kawate5, Yuichi Otsuka3, Atsuki Shinbori3, Takuya Tsugawa2 and Michi Nishioka2, (1)National Defense Academy of Japan, Yokosuka, Japan, (2)NICT National Institute of Information and Communications Technology, Tokyo, Japan, (3)Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan, (4)The University of Tokyo, Tokyo, Japan, (5)National Institute for Fusion Science, Toki, Japan
 
Response of ionosphere/thermosphere over European sector during the First G3 extreme geomagnetic storm in 25 solar cycle (1139024)
Jeong-Heon Kim1, Young-Sil Kwak1, Changsup Lee2, Jaewook Lee3, Hosik Kam1, Yang Tae-yong1, Geonhwa Jee2 and Yongha Kim3, (1)KASI Korea Astronomy and Space Science Institute, Daejeon, South Korea, (2)Korea Polar Research Institute, Division of Atmospheric Sciences, Incheon, South Korea, (3)Chungnam National University, Daejeon, South Korea
 
Characterization of Spatio-Temporal Properties of Solar Flares Response and Prediction of Its Impact in the Ionosphere in Near-Real Time (1171335)
Boris Maletckii and Elvira Astafyeva, Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France
 
Modeling the Response of the Ionosphere to an Extreme Geomagnetic Storm (1176567)
Timothy J Fuller-Rowell1, Tzu-Wei Fang2, Naomi Maruyama3, Zhuxiao Li4, Houjun Wang5, Mariangel Fedrizzi4, Garima Malhotra6 and Dibyendu Sur6, (1)University of Colorado at Boulder, CIRES, Boulder, CO, United States, (2)NOAA, Space Weather Prediction Center, Boulder, United States, (3)University of Colorado, LASP, Boulder, United States, (4)NOAA/SWPC - University of Colorado at Boulder, CIRES, Boulder, CO, United States, (5)Univ of Colorado-CIRES, Boulder, CO, United States, (6)University of Colorado at Boulder, CIRES, Boulder, United States
 
Dynamics of Equatorial ionization Anomaly Junction and Suppression of Equatorial Plasma Bubbles Observed during a Geomagnetic Storm (1179755)
Brians CHINONSO Amadi1,2, Liying Qian3, Joseph M McInerney4, Eurico R De Paula5 and Esfhan Alam Kherani5, (1)National Institute for Space Research (INPE), Space Geophysics, Sao Jose dos Campos, SP, Brazil, (2)National Center for Atmospheric Research, HAO, Boulder, United States, (3)National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, (4)NCAR, Boulder, CO, United States, (5)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil
 
Performance of Weimer driven WAM-IPE during November 20, 2003 Geomagnetic Storm (1191906)
Dibyendu Sur, University of Colorado at Boulder, CIRES, Boulder, United States, Tzu-Wei Fang, NOAA, Space Weather Prediction Center, Boulder, United States, Timothy J Fuller-Rowell, Univ of Colorado/CIRES, Boulder, CO, United States, Mariangel Fedrizzi, NOAA/SWPC - University of Colorado at Boulder, CIRES, Boulder, CO, United States and Roderick A Heelis, University Texas Dallas, Richardson, TX, United States
 
Subauroral / mid-latitude ionospheric and thermospheric response to flares and CME impacts as observed at Millstone Hill (Invited) (1194074)
Philip John Erickson1, Shunrong Zhang2, Larisa P Goncharenko3, Anthea Coster1 and Ercha Aa2, (1)MIT Haystack Observatory, Westford, MA, United States, (2)MIT Haystack Observatory, Westford, United States, (3)MIT, Pepperell, United States
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