SA44A:
Large- and Small-Scale Drivers and Responses in the Ionosphere-Thermosphere System I

Submit an Abstract to this Session



Session ID#: 32192

Session Description:
Determining the effects of energy deposition and momentum exchange at different spatial and temporal scales is a critical question in the study of the magnetosphere-ionosphere-thermosphere (MIT) system. The objectives of this session are to invite a discussion about how the new capabilities improve the specification of the energy and momentum inputs and to determine how the I-T system responds at different scales. The session will focus on the following scientific questions: (1) What are the spatial and temporal characteristics of convection and precipitation features in the range of 50-500 km? (2) How do the large-scale and small-scale features interact with the magnetosphere? (3) What are the relative roles the large and small-scale forcings have in producing thermosphere/ionosphere disturbances? (4) How is localized energy input redistributed globally? Example topic areas include (but not limited to) flow bursts, SAPS, and TIDs/TADs using observations, models, and data assimilation technique.
Primary Convener:  Yue Deng, University of Texas at Arlington, Arlington, TX, United States
Conveners:  Roderick A Heelis, University Texas Dallas, Richardson, United States, Larry R Lyons, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States and Shunrong Zhang, MIT Haystack Observatory, Westford, MA, United States
Chairs:  Roderick A Heelis, University Texas Dallas, Richardson, United States and Yue Deng, University of Texas Arlington, Arlington, United States
OSPA Liaison:  Shunrong Zhang, MIT Haystack Observatory, Westford, MA, United States
Index Terms:

2407 Auroral ionosphere [IONOSPHERE]
2411 Electric fields [IONOSPHERE]
2427 Ionosphere/atmosphere interactions [IONOSPHERE]
2431 Ionosphere/magnetosphere interactions [IONOSPHERE]

Abstracts Submitted to this Session:

Mesoscale thermospheric wind in response to nightside auroral brightening (Invited) (224047)
Yukitoshi Nishimura1,2, Ying Zou3, Christine Gabrielse4, Larry R Lyons5, Roger H Varney6, Mark Conde7, Donald L Hampton7 and Stephen B Mende8, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)Boston University, Boston, MA, United States, (3)The University of Alabama in Huntsville, Huntsville, United States, (4)The Aerospace Corporation, El Segundo, United States, (5)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (6)National Center for Atmospheric Research, Boulder, United States, (7)University of Alaska Fairbanks, Fairbanks, AK, United States, (8)Univ California, Berkeley, United States
The effects of small-scale structures on the state of the thermosphere and ionosphere (Invited) (280070)
Aaron J Ridley, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, United States and Shasha Zou, University of Michigan, Climate and Space Sciences and Engineering, Ann Arbor, United States
Characteristics of Meso-Scale High Latitude Ionospheric Flows (235224)
Roderick A Heelis, University Texas Dallas, Richardson, United States and Yun-Ju Chen, University of Texas at Dallas, William B. Hanson Center for Space Sciences, Richardson, TX, United States
Characterizing the Meso-scale Plasma Flows in Earth’s Coupled Magnetosphere-Ionosphere-Thermosphere System (256624)
Christine Gabrielse, The Aerospace Corporation, El Segundo, United States, Yukitoshi Nishimura, Boston University, Boston, MA, United States, Larry R Lyons, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Bea Gallardo-Lacourt, University of Calgary, Calgary, AB, Canada, Yue Deng, University of Texas Arlington, Arlington, United States, Kathryn A McWilliams, University of Saskatchewan, Saskatoon, SK, Canada and J. Michael Ruohoniemi, Virginia Polytechnic Institute and State University, Blacksburg, United States
Impact of Flow Bursts in the Auroral Zone on the Ionosphere and Thermosphere (260540)
Yue Deng, University of Texas at Arlington, Arlington, TX, United States, Roderick A Heelis, Univ. of Texas at Dallas, Richardson, TX, United States and Larry R Lyons, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Climatology of Neutral vertical winds in the midlatitude thermosphere (220151)
Robert Kerr1, Sudha Kapali2, Juanita Riccobono2, Michael A Migliozzi2, John Noto3, Christiano Garnett Marques Brum4 and Raul Garcia5, (1)Computational Physics Inc., Lowell, Lowell, United States, (2)Computational Physics Inc., Lowell, MA, United States, (3)Computational Physics Inc., North Chelmsford, MA, United States, (4)Arecibo Observatory, Arecibo, PR, United States, (5)Arecibo Observatory - University of Central Florida, Arecibo, PR, United States
Observations of subauroral ionospheric dynamics during SED plume passage at Millstone Hill (276812)
Shunrong Zhang1, Philip John Erickson2 and Anthea Coster1, (1)MIT Haystack Observatory, Westford, MA, United States, (2)MIT Haystack Observatory, Westford, United States

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