SA51C:
Winds, Composition, and Temperature in the Thermosphere and Their Impact on the Ionosphere I

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Session ID#: 18290

Session Description:
Winds, composition, and temperature in the thermosphere are closely coupled. Understanding this coupling is critical to understanding the variability of the thermosphere under different geophysical conditions and its impact on the ionosphere at various temporal and spatial scales. This session focuses on the theoretical and observational studies of the dynamics and thermodynamics of the thermosphere and their effect on the ionosphere. We seek presentations covering both the climatological variability and the weather of thermospheric winds, temperature, composition, and density and their associated ionospheric density, composition, and TEC changes.  Relevant topics include, but are not limited to: 1) annual, semi-annual, and solar cycle variations of the thermosphere and ionosphere; 2) storm-time changes of thermospheric winds, temperature and composition; 3) storm-time ionosphere density, composition, and TEC variations and their feedback effect on the thermosphere through ion-neutral coupling.
Primary Convener:  Wenbin Wang, High Altitude Observatory, Boulder, CO, United States
Conveners:  Vikas S Sonwalkar, University of Alaska Fairbanks, Fairbanks, AK, United States and Yue Deng, University of Texas at Arlington, Arlington, TX, United States
Chairs:  Vikas S Sonwalkar, University of Alaska Fairbanks, Fairbanks, AK, United States, Wenbin Wang, High Altitude Observatory, Boulder, CO, United States and Yue Deng, University of Texas at Arlington, Arlington, TX, United States
OSPA Liaison:  Wenbin Wang, High Altitude Observatory, Boulder, CO, United States
Index Terms:

0355 Thermosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
2419 Ion chemistry and composition [IONOSPHERE]
2427 Ionosphere/atmosphere interactions [IONOSPHERE]
3369 Thermospheric dynamics [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

FUV observations of thermospheric compositions (Invited) (120403)
Yongliang Zhang, Johns Hopkins University, Baltimore, MD, United States
Simulations of vertical ion-drag effect on neutral winds and density at low and middle latitudes (134196)
Qingyu Zhu1, Yue Deng2, Astrid I Maute3, Arthur D Richmond4, Cissi Ying-tsen Lin2 and Cheng Sheng5, (1)University of Texas at Dallas, Richardson, TX, United States, (2)University of Texas at Arlington, Arlington, TX, United States, (3)University of Colorado, Boulder, CIRES, Boulder, United States, (4)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (5)High Altitude Observatory, Boulder, CO, United States
Day-to-Day Changes of Thermospheric Zonal and Meridonal Winds Obtained from a Data Assimilation Model (180834)
Ludger Scherliess, Utah State University, Logan, UT, United States, Ivana Molina, Utah State University, Logan, United States and Levan Lomidze, University of Calgary, Calgary, AB, Canada
Comparison of the Evolution of Quiet Time Field-aligned Electron and Ion Densities from Whistler Mode Radio Sounding with that from SAMI2 Simulations (170316)
Amani Reddy1, Vikas S Sonwalkar1 and Joseph Huba2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)US Naval Research Laboratory, Plasma Physics Division, Washington, DC, United States
Unexpected Diurnal Variations in Electron Temperature in the Mars Ionosphere (170321)
Laila Andersson1, Christopher M Fowler2, Andrew F Nagy3, Roger V Yelle4, Thomas Cravens5, Stephen W Bougher6, Alan Geoffrey Burns7, William K Peterson1, Bruce M Jakosky8, Mehdi Benna9, James Webster1, Adam K Woodson8 and Dr. Meredith K Elrod10, (1)University of Colorado at Boulder, Boulder, CO, United States, (2)Space Sciences Laboratory, University of California at Berkeley, Berkeley, CA, United States, (3)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (4)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (5)University of Kansas, Physics and Astronomy, Lawrence, KS, United States, (6)University of Michigan Ann Arbor, Climate and Space Sciences and Engineering Department, Ann Arbor, MI, United States, (7)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, (8)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (9)University of Maryland Baltimore County, Baltimore, United States, (10)University of Maryland College Park, Astronomy Department, College Park, United States
Variations of the thermosphere and their impact on the ionosphere during the 2 October 2013 geomagnetic storm (147602)
Jiuhou Lei, USTC University of Science and Technology of China, Hefei, China, Jiahao Zhong, Planetary Environmental and Astrobiological Research Laboratory (PEARL), School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, China, Tian Mao, CAS Chinese Academy of Sciences, Beijng, China, Tao Yu, China University of Geosciences Wuhan, Wuhan, China and Eric K Sutton, Kirtland Air Force Base, Kirtland AFB, NM, United States
Unusual subauroral neutral wind disturbances during geomagnetic storms (134642)
Shunrong Zhang1, Philip John Erickson2 and John M Holt1, (1)MIT Haystack Observatory, Westford, MA, United States, (2)MIT Haystack Observatory, Westford, United States
Why are there winds in the upper thermosphere? (Invited) (121365)
Alan Geoffrey Burns, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States, Wenbin Wang, High Altitude Observatory, Boulder, CO, United States, Liying Qian, University Corporation for Atmospheric Research, Boulder, CO, United States, Vicki Hsu, University of Colorado at Boulder, CIRES, NCEI, NOAA, Boulder, CO, United States and Jeffrey P Thayer, University of Colorado at Boulder, Smead Aerospace Engineering Sciences, Boulder, United States

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