SM029
Wave, Plasma, and Optical Structures in Subauroral Geospace

Session ID#: 156723

Session Description:
Ground-based and in situ observations during the last decade greatly advanced our knowledge of the subauroral dynamical structure, including density troughs, and its external and internal drivers, such as reconnection-ejected mesoscale plasma flows and ionospheric feedback, just to name a few. In particular, the recently established relation of subauroral arcs, STEVE and Picket Fence, to strong subauroral flows (SAID and SAPS) helped to "visualize" plasma and wave processes occurring in the course of substorms near the plasma sheet inner boundary. The understanding of these often nonlinear processes necessarily requires an approach that combines dedicated observations and advanced theoretical/numerical studies. To facilitate such broad collaboration and usher in a "golden era" of subauroral research, we propose a special section that can bring theorists and modelers together with observers to present observations and theoretical/numerical simulations models using/explaining observations from ground and space platforms focusing on, but not limited to, multiscale wave, current, plasma, and optical phenomena.
Index Terms:

2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]
2752 MHD waves and instabilities [MAGNETOSPHERIC PHYSICS]
2788 Magnetic storms and substorms [MAGNETOSPHERIC PHYSICS]
7899 General or miscellaneous [SPACE PLASMA PHYSICS]

Primary Convener:  Rezy Pradipta, Boston College, Institute for Scientific Research, Chestnut Hill, MA, United States
Conveners:  Evgeny V Mishin, Air Force Research Laboratory, Albuquerque, NM, United States and Rezy Pradipta, Boston College, Chestnut Hill, MA, United States
 
Ionospheric Feedback Mechanism and ULF Quater-Waves (Invited) (1045666)
Anatoly V Streltsov, Embry-Riddle Aeronautical University, Daytona Beach, FL, United States and Evgeny V Mishin, Air Force Research Laboratory, Albuquerque, NM, United States
 
The Kinetic Theory of STEVE and Picket Fence (1049527)
Evgeny V Mishin, Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States and Anatoly V Streltsov, Embry-Riddle Aeronautical University, Daytona Beach, FL, United States
 
Multi-event analysis of three-types of optical emissions at subauroral latitudes using ground optical and radio instruments and the Arase and Van Allen Probes satellites (1061344)
Rei Sugimura1, Yuichi Otsuka2, Kazuo Shiokawa3, Shin-ichiro Oyama4, Martin G Connors5, Akira Kadokura6, Boris M Shevtsov7, Alexsey Poddelsky8, Nozomu Nishitani9, Simon G Shepherd10, J. Michael Ruohoniemi11, Charles William Smith12, Robert J MacDowall13, Harlan E. Spence12, Geoffrey D Reeves14, Herbert O Funsten15, Yoshizumi Miyoshi16, Iku Shinohara17, Yoshiya Kasahara18, Fuminori Tsuchiya19, Atsushi Kumamoto19, Satoko Nakamura20, Atsuki Shinbori2, Kazushi Asamura21, Shoichiro Yokota22, Yoichi Kazama23, Chae Woo Jun24, Shiang-Yu Wang22, Sunny W. Y. Tam25, Satoshi Kasahara21, Kunihiro Keika26, Tomoaki Hori9 and Ayako Matsuoka21, (1)Tsushima, Aichi, JAPAN, (2)Nagoya University, Institute for Space-Earth Environmental Research, Nagoya, Japan, (3)ISEE, Nagoya Univ, Aichi, Japan, (4)National Institute of Polar Research, Tokyo, Japan, (5)Athabasca University, Athabasca, AB, Canada, (6)National Institute Polar Research, Tachikawa, Tokyo, Japan, (7)Far Eastern Branch Russian Academy of Sciences, Vladivostok, Russia, (8)Far Eastern Branch of the Russian Academy of Science, Paratunka, Russia, (9)ISEE, Nagoya University, Nagoya, Japan, (10)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (11)Virginia Polytechnic Institute and State University, Blacksburg, United States, (12)University of New Hampshire, Durham, NH, United States, (13)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (14)Los Alamos National Laboratory, Los Alamos, NM, United States, (15)Los Alamos National Laboratory, ISR-DO, Los Alamos, NM, United States, (16)Nagoya University, Institute for Space-Earth Environmental Research (ISEE), Nagoya, Japan, (17)Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Sagamihara, Japan, (18)Kanazawa University, Graduate School of Natural Science and Technology, Kanazawa, Japan, (19)Tohoku University, Department of Geophysics, Graduate School of Science, Sendai, Japan, (20)Kyoto University, Graduate School of Science, Kyoto, Japan, (21)ISAS/JAXA, Sagamihara, Japan, (22)Osaka University, Osaka, Japan, (23)ASIAA, Taipei, Taiwan, (24)Solar-Terrestrial Environment Laboratory, Nagoya-Shi, Japan, (25)National Cheng Kung University, Tainan, Taiwan, (26)University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
 
An ionospheric conductance gradient driver for subauroral picket fence visible signatures near STEVE events (1067159)
Kristina A Lynch1, Edward W McManus1, Joshua Gutow2, Meghan Burleigh3 and Matthew D Zettergren4, (1)Dartmouth College, Hanover, NH, United States, (2)Dartmouth College, Hanover, United States, (3)US Naval Research Laboratory, Monterey, MI, United States, (4)Embry-Riddle Aeronautical University, Department of Physical Sciences, Daytona Beach, FL, United States
 
Identification of primary mode and m-number of Pc5 waves observed by SuperDARN radars (1080352)
Koki Morita1, Nozomu Nishitani2 and Tomoaki Hori2, (1)Nagoya University, Nagoya, Japan, (2)ISEE, Nagoya University, Nagoya, Japan
 
Interaction between Subauroral Proton Aurora, SAR Arcs and SAPS Unveiled by Citizen Scientist Photographs (1092062)
Toshi Nishimura1, Emma Bruus2, Eero Karvinen3, Carlos R. Martinis4, Alan Dyer5, Lauri Kangas2, Heidi Rikala6, Eric Donovan7, Nozomu Nishitani8, J. Michael Ruohoniemi9, Philip John Erickson10, Bea Gallardo-Lacourt11 and Vassilis Angelopoulos12, (1)Boston University, Boston, MA, United States, (2)Taivaanvahti/Skywarden Observation Service, Ursa Astronomical Association, Helsinki, Finland, (3)Citizen Scientist, Nurmes, Finland, (4)Boston University, Center for Space Physics, Boston, MA, United States, (5)Citizen Scientist, Strathmore, Canada, (6)Citizen Scientist, Ikaalinen, Finland, (7)University of Calgary, Calgary, AB, Canada, (8)ISEE, Nagoya University, Nagoya, Japan, (9)Virginia Polytechnic Institute and State University, Blacksburg, United States, (10)MIT Haystack Observatory, Westford, MA, United States, (11)University of California Los Angeles, Los Angeles, United States, (12)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States
 
Studying the Time and Spatial Variations of the Flow Structures within the SAPS and SAIDs (1099979)
Heechan Cha, University of Texas at San Antonio, San Antonio, TX, United States, Keiichi Ogasawara, Southwest Research Institute, San Antonio, TX, United States and Toshi Nishimura, Boston University, Boston, MA, United States
 
Origin of dawnside subauroral polarization streams during major geomagnetic storms (1101407)
Dong Lin1, Wenbin Wang1, Viacheslav G Merkin2, Chaosong Huang3, Meers M Oppenheim4, Kareem Sorathia5, Kevin H Pham6, Adam Michael7, Shanshan Bao8, Qian Wu9, Yongliang Zhang10, Michael James Wiltberger11, Frank Toffoletto12, John Lyon13 and Jeffrey Garretson7, (1)National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States, (2)The Johns Hopkins University, APL, Laurel, United States, (3)Air Force Research Laboratory, Albuquerque, United States, (4)Boston University, Center for Space Physics, Boston, MA, United States, (5)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (6)NCAR, Boulder, United States, (7)The Johns Hopkins University, APL, Laurel, MD, United States, (8)Rice University, Department of Physics and Astronomy, Houston, TX, United States, (9)NCAR, Boulder, CO, United States, (10)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (11)National Center for Atmospheric Research, Boulder, CO, United States, (12)Rice University, Department of Physics and Astronomy, Houston, United States, (13)Dartmouth College, Hanover, NH, United States
 
Flow Channels and the Generation of Alfvénic Turbulence along Storm-time Inner Magnetospheric Field-lines. (1115950)
Christopher Carew Chaston, University of California Berkeley, Space Sciences Laboratory, Berkeley, CA, United States
 
ULF Modulation of STEVE (1162556)
Frances R Fenrich, University of Alberta, Edmonton, AB, Canada and Robert Rankin, University of Alberta, Department of Physics, Edmonton, AB, Canada
 
New Insight into the Transition from a SAR Arc to STEVE (Invited) (1167862)
D. Megan Gillies1, Jun Liang2, Bea Gallardo-Lacourt3 and Eric Donovan1, (1)University of Calgary, Calgary, AB, Canada, (2)Univ. of Calgary, Calgary, AB, Canada, (3)University of California Los Angeles, Los Angeles, United States
 
A SAR arc evolving into STEVE during extreme subauroral plasma conditions (1188287)
Carlos R. Martinis1, Ian Grifffin2,3, Bea Gallardo-Lacourt4, Joei Wroten1, Jeffrey L Baumgardner1, Toshi Nishimura5, David J Knudsen6, Neil Fausett7, George Empson8 and Paul Stewart9, (1)Boston University, Center for Space Physics, Boston, MA, United States, (2)Otago Museum, Dunedin, New Zealand, (3)Dodd-Walls Centre, Department of Physics, University of Otago, Dunedin, New Zealand, (4)NASA Goddard Space Flight Center, Greenbelt, United States, (5)Boston University, Boston, MA, United States, (6)University of Calgary, Calgary, AB, Canada, (7)Citizen scientist, Paeroa, New Zealand, (8)Citizen Scientist, Lake Tekapo, New Zealand, (9)Citizen Scientist, Totara Valley, New Zealand
 
Vorticity of the STEVE Picket Fence (1199663)
Joshua L Semeter, Boston University, Center for Space Physics and Department of Electrical and Computer Engineering, Boston, MA, United States
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