SA004
Advances in the Understanding of the Equatorial Ionization Anomaly (EIA) and Ionospheric Irregularities (e.g., Scintillations, Equatorial Plasma Bubbles, Spread-F) Using Measurements and Modeling
Session ID#: 160827
Session Description:
Equatorial Ionization Anomaly (EIA) and ionospheric irregularities (e.g., Scintillations, Equatorial Plasma Bubbles, Spread-F) have been a major focus of the ionospheric research community. The behavior of the Ionosphere-Thermosphere system is influenced by solar forcing from above, wave activity from below, traveling atmospheric/ionospheric disturbances (TADs/TIDs) from mid/high latitudes, and the equatorial dynamo process. These factors manifest various thermospheric and ionospheric irregularities. Further, the geomagnetic field geometry (such as magnetic declination angle, terminator alignment), geomagnetic activity, and winds regulate the morphology and variability of EIA and irregularities. Determining these conditions and understanding their interactions have challenged the research community for decades. New satellite measurements (GOLD, ICON, COSMIC 2) and modeling approaches are revealing new, interesting characteristics about the EIA variability and ionospheric irregularities. This session invites presentations related to space and ground-based measurements and modeling efforts that contribute to a better understanding of the development and variability of the EIA and ionospheric irregularities.
Index Terms:
2415 Equatorial ionosphere [IONOSPHERE]
2435 Ionospheric disturbances [IONOSPHERE]
2437 Ionospheric dynamics [IONOSPHERE]
2439 Ionospheric irregularities [IONOSPHERE]
Primary Convener: Deepak Kumar Karan, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
Conveners: Carlos R. Martinis, Boston University, Center for Space Physics, Boston, MA, United States, Anthea Coster, MIT Haystack Observatory, Westford, MA, United States and Fabiano S Rodrigues, University of Texas at Dallas, Richardson, TX, United States
Student/Early Career Convener: Sovan Saha, Indian Institute of Technology, Gandhinagar, India
Modeling the day-to-day variability of equatorial plasma bubbles with SAMI3/WACCM-X (1068281)
Min-Yang Chou1,2, Jia Yue1,2, Fabrizio Sassi3, Sarah E McDonald4, Jennifer Tate5, Nicholas M Pedatella6, Cora Randall7 and V Lynn Harvey8, (1)Catholic University of America, Washington, United States, (2)NASA Goddard Space Flight Center, Community Coordinated Modeling Center, Greenbelt, United States, (3)Naval Research Lab DC, Washington, DC, United States, (4)US Naval Research Laboratory, Washington, DC, United States, (5)Computational Physics Incorporated, Springfield, VA, United States, (6)National Center for Atmospheric Research, Boulder, CO, United States, (7)University of Colorado at Boulder, LASP & Atmospheric and Oceanic Sciences, Boulder, CO, United States, (8)Laboratory for Atmospheric and Space Physics, Boulder, United States
Investigating the Impacts of Ionospheric Irregularities on Precise Point Positioning over China and Understanding Its Mechanism (1070257)
Wei Li1, Shuli Song1, Weili Zhou1, Na Cheng2 and Chao Yu1, (1)Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, China, (2)Shandong Jianzhu University, Jinan, China
Climatology of Ionospheric Spatio-Temporal Scales Measured by Swarm satellites (1079007)
Jaroslav Urbar1, Luca Spogli2,3, Antonio Cicone4, Claudio Cesaroni2 and Lucilla Alfonsi2, (1)Institute of Atmospheric Physics Czech Academy of Sciences, Prague, CZECH REPUBLIC, (2)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (3)SpacEarth Technology, Rome, Italy, (4)University of L'Aquila, L'Aquila, Italy
Investigation of Gravity Wave Scale Sizes present in the Low- / Equatorial Latitude Upper Atmosphere With and Without Plasma Bubbles as seen in the OI 630.0 nm Nightglow Emissions (1084708)
Sovan Saha, Indian Institute of Technology, Gandhinagar, India, Pallamraju Duggirala, Physical Research Laboratory, Ahmedabad, India and Rupesh namdeorao Ghodpage, Medium Frequency Radar Facility, Indian Institute of Geomagnetism, Shivaji University Campus, Kolhapur, India
Equatorial Ionization Anomaly Discontinuity Observed by Global-scale Observations of Limb and Disk (GOLD): Preliminary Results (1089048)
Xuguang Cai1, Wenbin Wang2, Richard Eastes3, Liying Qian2, Nicholas M Pedatella4, Robert Edward Daniell Jr5, Quan Gan6 and William E McClintock7, (1)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics,, Boulder, United States, (2)National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, (3)University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, (4)National Center for Atmospheric Research, Boulder, CO, United States, (5)Ionospheric Physics, Stoughton, MA, United States, (6)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (7)University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
Modeling and Predicting the Equatorial Ionization Anomaly (EIA) Crest (1094537)
Yurui Chang, University of Michigan Ann Arbor, Statistics, Ann Arbor, United States, Yang Chen, University of Michigan, Department of Statistics, Ann Arbor, United States and Shasha Zou, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States
Ionospheric irregularities embedded in a Plasma Bubble as probed with a Swarm overfly (1095406)
Luca Spogli1,2, Lucilla Alfonsi3 and Claudio Cesaroni1, (1)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (2)SpacEarth Technology, Rome, Italy, (3)Organization Not Listed, Washington, DC, United States
Temporal evolution equatorial anomaly in the nightside ionosphere derived from ISS-IMAP/EUVI data (1102608)
Shinya Nakano1,2, Yuta Hozumi3, Akinori Saito4, Ichiro Yoshikawa5, Atsushi Yamazaki6, Kazuo Yoshioka5 and Go Murakami7, (1)The Inst of Statistical Math, Tachikawa, Japan, (2)Joint-Support Center for Data Science Research, Center for Data Assimilation Research and Applications, Tachikawa, Japan, (3)NICT National Institute of Information and Communications Technology, Tokyo, Japan, (4)Kyoto University, Kyoto, Japan, (5)The University of Tokyo, Tokyo, Japan, (6)ISAS/JAXA, Sagamihara, Kanagawa, Japan, (7)ISAS-JAXA, Sagamihara, Japan
The Nighttime Equatorial Ionization Anomaly Crests – Some Seasonal Differences Observed by the GOLD Mission (1107712)
Richard Eastes, University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, United States, Deepak Kumar Karan, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, Carlos R. Martinis, Boston University, Center for Space Physics, Boston, MA, United States, Robert Edward Daniell Jr, Ionospheric Physics, Stoughton, MA, United States, Fazlul I Laskar, Physical Research Laboratory, Ahmedabad, India, Quan Gan, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States and William E McClintock, University of Colorado, Laboratory for Atmospheric and Space Physics, Boulder, CO, United States
Exploring the Dynamics of the Equatorial Ionization Anomaly over South America using Multi-Spectral Observations (1125913)
Robert Edward Daniell Jr, Self Employed, Stoughton, United States, Carlos R. Martinis, Boston University, Center for Space Physics, Boston, MA, United States, Richard Eastes, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States, Michael Pezzopane, INGV National Institute of Geophysics and Volcanology, Rome, Italy and Nicholas M Pedatella, National Center for Atmospheric Research, Boulder, CO, United States
Cross-validation of the ionospheric electric field measurements on ICON/IVM, SWARM and ground-based radar in the Jicamarca Radio Observatory (1129005)
Stephen B Mende, University of California Berkeley, Berkeley, CA, United States, Yen-Jung Wu, University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States, Brian J Harding, University of California, Berkeley, Space Sciences Laboratory, Berkeley, United States, Astrid I Maute, NCAR/HAO, Boulder, CO, United States, Patrick Alken, University of Colorado Boulder, CIRES, Boulder, CO, United States and Roderick A Heelis, University Texas Dallas, Richardson, TX, United States
Plasma irregularities observed by ISS FPMU: Multi-instrument case-study and modeling results (1129777)
Shantanab Debchoudhury1, Dong Lin2, Victoria N Coffey3, Aroh Barjatya1, Joseph I Minow4 and Linda Neergaard Parker5, (1)Embry-Riddle Aeronautical University, Daytona Beach, United States, (2)NCAR, Boulder, United States, (3)NASA Marshall Space Flight Ctr, Huntsville, AL, United States, (4)NASA MSFC, Huntsville, AL, United States, (5)Space Weather Solutions, Huntsville, United States
Application of VHF Atmospheric Radar Imaging to Measurement of Aspect Angle of Field-Aligned Plasma Irregularities in Mid-Latitude E Region (1135126)
Jenn-Shyong Chen, China Medical University, Center for General Education, Taichung, Taiwan, Chien-Ya Wang, Chinese Culture University, Department of Optoelectric Physics, Taipei, Taiwan and Yen-Hsyang Chu, National Central University of Taiwan, Department of Space Science and Engineering, Taoyuan, Taiwan
Equatorial Plasma Bubble (EPB) Formation and Evolution and Relationship to Traveling Ionospheric Disturbances (TIDs) (1161368)
Salvador Espinoza1, Phillip Charles Anderson1 and Cesar Valladares2, (1)University of Texas at Dallas, W. B. Hanson Center for Space Science, Richardson, TX, United States, (2)University of Texas at Dallas, W. B. Hanson Center for Space Science, Richardson, United States
December 2016 low latitude ionospheric irregularity analysis using multi-instruments (1166400)
Eurico R De Paula, INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, Inez Staciarini Batista, INPE, Sao Jose Dos Campos, Brazil, Mangalathayil Ali Abdu, Inst Nat Pesquisas Espac CP515, Sao Jose Dos Campos, Brazil, André R. F. Martinon, INPE National Institute for Space Research, Aeronomy Division, Sao Jose dos Campos, Brazil and André Luiz da Silva, ITA Technological Institute of Aeronautics, Electronic Engineering and Computation, Sao Jose dos Campos, Brazil
Instantaneous Amplitude of Low-latitude Ionospheric Irregularities Probed by ROCSAT-1, DEMETER,and FORMOSAT-7/COSMIC-2 (1179560)
Chun-Yen Huang1,2, Jann-Yenq G Liu3, Fu-yuan Chang4, Chi-Yen Lin5, Chi-Kuang Chao6, Loren C Chang6 and Cissi Ying-tsen Lin7, (1)Institute of Space Science National Central University, Jhongli, Taiwan, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)Natl Central Univ, Chung Li, Taiwan, (4)National Central University, Center for Astronautical Physics and Engineering, Taoyuan City, Taiwan, (5)National Central University, Institute of Space Science and Engineering, Taoyuan City, Taiwan, (6)Institute of Space Science and Engineering, National Central University, Taoyuan City, Taiwan, (7)National Central University, Department of Space Science & Engineering, Taoyuan, Taiwan
OI 630.0 nm Airglow Observations of Unique Characteristics of Equatorial Plasma Bubbles and Investigation of its Tilt Variations with Possible Relation to Zonal Drift Velocity over Gadanki, India (1182009)
Arun Kumar Panda1,2 and Ramkumar K Thokuluwa1, (1)National Atmospheric Research Laboratory, Gadanki, India, (2)Indian Institute of Space Science and Technology, Department of Physics, Valiamala, Thiruvananthapuram, India
An alternative method for deriving daily dynamo electric fields using equatorial ionization anomaly crests (1183486)
Ching-Chung Cheng, NCU National Central University of Taiwan, Jhongli, Taiwan; Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Jann-Yenq G Liu, Natl Central Univ, Chung Li, Taiwan, Charles Lin, National Cheng Kung University, Department of Earth Sciences, Tainan, Taiwan and Yin-Chen Cheng, NCKU National Cheng Kung University, Tainan, Taiwan
Study of the drivers of the equatorial ionization anomaly using ICON and COSMIC2 data (Invited) (1049555)
Hyosub Kil, Johns Hopkins University Applied Physics Laboratory, Laurel, United States, Hyeyeon Chang, Korea Advanced Institute of Science and Technology, Daejeon, South Korea and Andrew Andrew Sun, KAIST Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Global Modeling of Equatorial Plasma Bubbles with SAMI3/WACCM-X (Invited) (1050489)
Joseph D Huba, Syntek Technologies, Fairfax, DC, United States, Hanli Liu, NCAR, Boulder, United States and Joseph M McInerney, NCAR, Boulder, CO, United States
Vertical Propagation Speeds of Gravity Waves in the Daytime as a Precursor to the Onset of Equatorial Spread-F (1061582)
Subir Mandal, NERC British Antarctic Survey, Cambridge, United Kingdom, Pallamraju Duggirala, Physical Research Laboratory, Ahmedabad, India and Tarun K Pant, Space Physics Laboratory,Vikram Sarabhai Space Centre,Indian Space Research Organaisation, Trivandrum, India
