SM034
Plasma Convection in the Subauroral Ionosphere and Coupled Inner Magnetosphere

Session ID#: 83712

Session Description:
Plasma convection in the subauroral region is influenced by different driving forces such as the neutral winds, penetration electric fields, and polarization electric fields (SAPS). Ionospheric conductivity plays an important role in modulating the relative importance of these different drivers. The electric fields interact with the inner magnetosphere, affecting plasma dynamics over a broad energy range. Significant increase in observations from several instruments, such as Van Allen Probes, AMPERE, GPS TEC, and radars, as well as advances in modeling  techniques, such as self-consistent coupling between the ionosphere, thermosphere and magnetosphere, provide an outstanding opportunity to study the subauroral region. This session solicits theoretical, numerical, and/or experimental contributions that address the (1) physics of convection in the subauroral ionosphere and/or conjugate inner magnetosphere, (2) influence of ionospheric conductivity and the neutral winds in modulating convection, and (3) significance of convection in terms of plasma dynamics across the energy spectrum.
Index Terms:

2443 Midlatitude ionosphere [IONOSPHERE]
2463 Plasma convection [IONOSPHERE]
2712 Electric fields [MAGNETOSPHERIC PHYSICS]
2730 Magnetosphere: inner [MAGNETOSPHERIC PHYSICS]

Primary Convener:  J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Conveners:  Naomi Maruyama, University of Colorado, Boulder, CO, United States, Solene Lejosne, Space Sciences Laboratory, Berkeley, CA, United States and Bharat Kunduri, Virginia Tech, Blacksburg, VA, United States
Primary Liaison:  J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
 
On the magnetospheric driver of double subauroral ion drifts (DSAIDs) and effects of ionospheric conductance (Invited) (488315)
Yiqun Yu1, Dong Wei1, Fei He2, Jinbin Cao1, Aaron J Ridley3 and Malcolm Wray Dunlop4, (1)Beihang University, Beijing, China, (2)Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China, (3)Univ Michigan, Ann Arbor, MI, United States, (4)Beihang University, School of Space and Environment, Beijing, China
 
Some Recent Observational and Theoretical Progress in Understanding Inner Magnetosphere Plasma Transport Dynamics (Invited) (493228)
Philip John Erickson1, John C Foster2, Shunrong Zhang1, Anthea Coster1, Joachim Raeder3, Banafsheh Ferdousi3 and Naomi Maruyama4, (1)MIT Haystack Observatory, Westford, MA, United States, (2)MIT Haystack Observatory, Geospace Sciences, Westford, MA, United States, (3)University of New Hampshire, Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States, (4)University of Colorado, Boulder, CO, United States
 
Sub-Auroral Ionospheric and Stratospheric Electric Field Responses to an Extreme Solar Energetic Particle Event (495624)
Edgar A Bering III, University of Houston, Houston, TX, United States, Robert Holzworth, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, WA, United States, Leslie A Woodger, Dartmouth College, Physics & Astronomy, Hanover, NH, United States, Michael Kokorowski, Amazon Web Services, Scientific Computing, Seattle, WA, United States, Michael P McCarthy, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States, Robyn M Millan, Dartmouth College, Department of Physics and Astronomy, Hanover, NH, United States, John Glen Sample, Montana State University, Bozeman, MT, United States, David Smith, University of California Santa Cruz, Santa Cruz, United States and Juan V Rodriguez, University of Colorado Boulder, Boulder, CO, United States
 
Modeling SAPS in the ionosphere and plasmasphere with SAMI3/RCM/GITM (498828)
Jonathan Krall, US Naval Research Laboratory, Washington, DC, United States, Joseph Huba, Syntek Technologies, Fairfax, VA, United States, Aaron J Ridley, Univ Michigan, Ann Arbor, MI, United States and Stanislav Y Sazykin, Rice University, Physics and Astronomy Department, Houston, TX, United States
 
Understanding the Sources of the Mid-latitude Storm Positive Phase: A Case Study of 16 July 2017 (518133)
Jan Josef Sojka1, Michael David2, Robert Walter Schunk2, Anthea Coster3, Roderick A Heelis4, Yun-Ju Chen5 and David Themens6, (1)Utah State University, Dept. of Physics, Logan, UT, United States, (2)Utah State University, Logan, UT, United States, (3)MIT Haystack Observatory, Westford, MA, United States, (4)University Texas Dallas, Richardson, TX, United States, (5)University of Texas at Dallas, William B. Hanson Center for Space Sciences, Richardson, TX, United States, (6)University of New Brunswick, Fredericton, NB, Canada
 
The Relationship Between Bifurcations of Region 2 Field-Aligned Currents and the Occurrence of Sub-Auroral Polarization Streams (540539)
Harneet Sangha1, Stephen E Milan1, Alexandra Ruth Fogg2, Brian J Anderson3, Haje Korth3 and Bharat Kunduri4, (1)University of Leicester, Leicester, LE1, United Kingdom, (2)University of Leicester, Department of Physics and Astronomy, Leicester, LE1, United Kingdom, (3)Johns Hopkins Univ, Laurel, MD, United States, (4)Virginia Tech, Blacksburg, VA, United States
 
New STEVE phenomena characterization and database by ‘professional-amateur’ collaborative Heliophysics (551056)
Elizabeth MacDonald, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Michael Hunnekuhl, Eichenweg 15, 30989 Gehrden, Germany
 
Nonlinear Computational Modeling of Small Scale Irregularities in the Midlatitude Sub-auroral Ionosphere (553705)
Chirag Rathod, Virginia Polytechnic Institute and State University, Kevin T. Crofton Department of Aerospace and Ocean Engineering, Blacksburg, VA, United States, Bhuvana Srinivasan, Virginia Polytechnic Institute and State University, Kevin T. Crofton Aerospace and Ocean Engineering, Blacksburg, VA, United States and Wayne Scales, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
 
SAPS Wave Structures observed by the SuperDARN Hokkaido Pair of radars: multievent analysis (572183)
Nozomu Nishitani and Tomoaki Hori, Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan
 
Electric Fields Measured by MMS and Van Allen Probes in the Inner Magnetosphere (589232)
Hiroshi Matsui1, Roy B Torbert2, Matthew R Argall3, Hans Vaith2, John R Wygant4, Robert Ergun5, Yuri V Khotyaintsev6 and Per-Arne Lindqvist7, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)Univ New Hampshire, Durham, NH, United States, (3)University of New Hampshire, Durham, NH, United States, (4)University of Minnesota, Minneapolis, MN, United States, (5)Univ Colorado, Boulder, CO, United States, (6)Swedish Institute of Space Physics, Uppsala, Sweden, (7)KTH Royal Institute of Technology, Stockholm, Sweden
 
A Severe Erosion of the Plasmasphere Arising from the September 2017 Storm (592144)
Yuki Obana1, Naomi Maruyama2, Atsuki Shinbori3, Kumiko K. Hashimoto4, Mariangel Fedrizzi5, Masahito Nose6, Yuichi Otsuka7, Nozomu Nishitani8, Tomoaki Hori9, Atsushi Kumamoto10, Fuminori Tsuchiya11, Shoya Matsuda12, Ayako Matsuoka12, Yoshiya Kasahara13, Akimasa Yoshikawa14, Yoshizumi Miyoshi9 and Iku Shinohara15, (1)Osaka Electro-Communication University, Neyagawa, Japan, (2)University of Colorado, Boulder, CO, United States, (3)Kyoto University, Kyoto, Japan, (4)Kibi International University, Okayama, Japan, (5)NOAA/SWPC-Univ. Colorado/CIRES, Boulder, CO, United States, (6)Nagoya Univeristy, Institute for Space-Earth Environmental Research, Nagoya, Japan, (7)Nagoya University, Nagoya, Japan, (8)Nagoya Univ, Nagoya, Japan, (9)Nagoya University, ISEE, Nagoya, Japan, (10)Tohoku University, Sendai, Japan, (11)PPARC, Tohoku University, Sendai, Japan, (12)ISAS/JAXA, Sagamihara, Japan, (13)Kanazawa University, Kanazawa, Japan, (14)Kyushu University, Faculty of Science, Fukuoka, Japan, (15)JAXA, ISAS, Sagamihara Kanagawa, Japan
 
The Seasonal Dependence of the Electric Drift Velocity Below L = 3 as Seen from the Van Allen Probes (596311)
Elicia Kemil Tiano, Berkeley, CA, United States, Solene Lejosne, Space Sciences Laboratory, Berkeley, CA, United States and Forrest Mozer, University of California Berkeley, Berkeley, CA, United States
 
Plasmasphere erosion and refilling during the 17-March 2013 and 1-June-2013 magnetic storms (631902)
Colby Lemon1, Rebecca L Bishop2, Anthea Coster3, Romina Nikoukar4, Margaret Chen2, Drew L. Turner2 and James L Roeder2, (1)Aerospace Corporation El Segundo, El Segundo, CA, United States, (2)The Aerospace Corporation, Los Angeles, CA, United States, (3)MIT Haystack Observatory, Westford, MA, United States, (4)Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States
 
A New Global Semi-Kinetic Simulation Model of Coupled Inner Magnetosphere-Ionosphere (634547)
Yifan Huang, Space Science Laboratory, UMass Lowell, Lowell, MA, United States, Jiannan Tu, Space Science Laboratory, Lowell, MA, United States and Paul Song, Univ Massachusetts Lowell, Lowell, MA, United States
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