SM53A:
Field-Aligned Currents, Poynting Flux, Auroral Precipitation, and Their Role in Magnetosphere-Ionosphere-Thermosphere Coupling II

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Session ID#: 17151

Session Description:
During geomagnetic storms, the magnetosphere transmits significant energy and momentum into the upper atmosphere via field-aligned currents, Poynting flux, and auroral precipitation. In response, the ionospheric electric potentials and conductances increase, the thermosphere heats and expands, and the global atmospheric circulation changes. The ionosphere – thermosphere feedback, in turn, can influence magnetospheric dynamics. The heated thermosphere enhances ionospheric outflows. The modified global circulation redistributes plasmas and neutrals, alters the ionospheric conductance and electric field, and thus changes the magnetospheric convection and reconnection. In recent years, advanced physics-based models (e.g. OpenGGCM, LFM, BATSRUS, CTIPe, TIEGCM, and GTIM) and extensive datasets (e.g. AMPERE, SWARM, e-POP, and DMSP) are available to unveil the complex coupling processes of the magnetosphere-ionosphere-thermosphere(MIT) system. Therefore, it is timely to gather these recent research efforts. This session solicits papers on observations, simulations, and theoretical investigations that address magnetospheric energy/momentum inputs and their impact on the coupled MIT system.
Primary Convener:  Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Conveners:  Haje Korth1, Gang Lu2 and Binzheng Zhang2, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States(2)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Chairs:  Binzheng Zhang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States and Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States
OSPA Liaison:  Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Co-Organized with:
SPA-Magnetospheric Physics, and SPA-Aeronomy

Proposed Co-Organized Session with:
  • SA - SPA-Aeronomy
Index Terms:

2427 Ionosphere/atmosphere interactions [IONOSPHERE]
2704 Auroral phenomena [MAGNETOSPHERIC PHYSICS]
2721 Field-aligned currents and current systems [MAGNETOSPHERIC PHYSICS]
2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]

Abstracts Submitted to this Session:

Ionosphere-Thermosphere Heating by Bursty Alfvén Waves (Invited) (192063)
William Lotko, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States and Binzheng Zhang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States
IMF control of small-scale Alfvén wave activity in the magnetosphere-ionosphere transition region: FAST observations (168638)
Spencer Hatch, University of Bergen, Department of Physics and Technology, Bergen, Norway, James W Labelle, Dartmouth College, Department of Physics & Astronomy, Hanover, United States, Binzheng Zhang, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, William Lotko, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States; National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States and Christopher Carew Chaston, University of California Berkeley, Space Sciences Laboratory, Berkeley, United States; University of Sydney, School of Physics, Sydney, Australia
Swarm constellation satellite observations for investigating Magnetosphere-Ionosphere-Thermosphere coupling (Invited) (128056)
Claudia Stolle, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany and Guram Kervalishvili, GFZ German Research Centre for Geosciences, Potsdam, Germany
Strong Ionospheric Electron Heating Associated With Pulsating Auroras --- A Swarm Survey (190888)
Jun Liang, Bing Yang, Johnathan K Burchill, Eric Donovan and David J Knudsen, University of Calgary, Calgary, AB, Canada
High Latitude Precipitating Energy Flux and Joule Heating During Geomagnetic Storms Determined from AMPERE Field-aligned Currents (175282)
Robert M Robinson1, Lawrence J Zanetti2, Brian J Anderson3, Haje Korth2, Marilia Samara4, Robert Michell5, Guy Alan Grubbs II6, Donald L Hampton7 and Adriana Dropulic5, (1)Catholic University of America, Physics, Washington, DC, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (3)Johns Hopkins University, Baltimore, MD, United States, (4)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (5)University of Maryland College Park, College Park, MD, United States, (6)Southwest Research Institute, San Antonio, United States, (7)University of Alaska Fairbanks, Fairbanks, AK, United States
New understanding of three-dimensional Ionospheric conductivities and application to global analysis of magnetosphere-ionosphere-thermosphere coupling (150060)
Ryan Michael McGranaghan, Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, Delores Knipp, University of Colorado at Boulder, Boulder, CO, United States and Tomoko Matsuo, University of Colorado Boulder, Boulder, United States
Can Particle Precipitation Affect the Magnetic Reconnection Rate in the Magnetosphere? (134630)
Joseph B Jensen1, Joachim Raeder1 and William D Cramer2, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)University of New Hampshire, Durham, NH, United States
Field-aligned currents in auroral vortices (159336)
Jay Johnson, Andrews University, Berrien Springs, United States, Simon Wing, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Peter A Delamere, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States
A two-dimensional global simulation study of inductive-dynamic magnetosphere-ionosphere/thermosphere coupling (196154)
Jiannan Tu, Space Science Laboratory, University of Massachusetts Lowell, Lowell, United States and Paul Song, University of Massachusetts Lowell, Lowell, MA, United States

See more of: SPA-Magnetospheric Physics