407:
Vertical Coupling in the Ionosphere–Thermosphere System I Posters


Session ID#: 40540

Session Description:
The altitude range over which substantial energy and momentum are exchanged between the charged and neutral particles and where currents dissipate heat is generally lower than is easily accessible by ground of space-based diagnostics. Rocket measurements of the neutral winds [Larsen] and models of the neutrals winds [Hagan] in the so-called space transition region show large variability caused by tides and waves and their interactions. Likewise the current systems that are generated by such winds must be similarly structured with field-line integrated effects that influence the entire charged particle populations above the region. Since the region itself is so hard to describe observationally a natural question arises concerning our ability to describe its behavior based on remote measurements made above and/or below the region. We propose a special session to discuss the strengths and weaknesses associated with attempts to describe the behavior of the space transition region based on remotely located measurements. Papers addressing these topics and/or specific research questions or mission concepts are solicited.
Such discussions may include.
How measurements of Poynting flux are affected by neutral winds.
How particle energy deposition is dependent on neutral composition and the spectral content of particle fluxes
How winds in the upper thermosphere are related winds in the lower thermosphere
How wind driven current systems appear as plasma drifts in the upper atmosphere
How solar radiative spectral content affecting the lower atmosphere and E region is related to that affecting the upper atmosphere and F region during flares and non-flares.
How ground magnetometer data is used to determine ionospheric currents
How gravity waves affect the energy budget of the thermosphere
Primary Convener:  Roderick A Heelis, University Texas Dallas, Richardson, TX, United States
Conveners:  Douglas E. Rowland, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Larry J Paxton, Applied Physics Laboratory Johns Hopkins, Laurel, MD, United States

Abstracts Submitted to this Session:

 
407.152
MENTAT: A New Magnetic Meridional Neutral Wind Model for Earth’s Thermosphere (334210)
Patrick Dandenault, Johns Hopkins University, Applied Physics Laboratory, Laurel, MD, United States
 
407.153
Seasonal Variation Analysis of Thermospheric Composition in TIMED/GUVI Limb Measurements (334408)
Jia Yue1, Robert R Meier2, Yongxiao Jian3, Jeng-Hwa Yee4, Dong Liang Wu5, James M Russell III3, Wenbin Wang6 and Alan Geoffrey Burns6, (1)Hampton University, Hampton, VA, United States, (2)George Mason University Fairfax, Fairfax, VA, United States, (3)Hampton University, Department of Atmospheric and Planetary Sciences, Hampton, VA, United States, (4)Johns Hopkins Univ, Laurel, MD, United States, (5)NASA/Goddard Space Flight Cent, Greenbelt, MD, United States, (6)NCAR, Boulder, CO, United States
 
407.154
Turbulent Coupling and Transport in the Space Transition Region (335615)
Richard L Collins1, Jintai Li1, Denise Thorsen1, Alan Z Liu2, Yafang Guo2, Roger H Varney3 and Gerald A Lehmacher4, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Embry-Riddle Aeronautical University, Daytona Beach, FL, United States, (3)SRI International Menlo Park, Menlo Park, CA, United States, (4)Clemson University, Clemson, SC, United States
 
407.155
Four-dimensional reconstructions of thermospheric vector wind fields using multistatic Doppler spectra of optical emissions at 558 and 630 nm. (335967)
Mark Conde, John Elliott and Kylee Branning, University of Alaska Fairbanks, Fairbanks, AK, United States
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