SA31B:
Dynamical Response of the Thermosphere and Ionosphere to Geomagnetic Disturbances I Posters


Session ID#: 8859

Session Description:
During geomagnetic disturbances, large changes in thermospheric winds, temperature, and composition occur in response to energy and momentum deposition from the magnetosphere and solar wind. These changes further lead to ionospheric variations in dynamo electric field, electron density and TEC. The nonlinear response of the thermosphere and ionosphere depends on various geophysical conditions, such as season and solar activity, and is still not well understood. This session is dedicated to the study of the dynamical response of the coupled thermosphere and ionosphere to geomagnetic disturbances under different geophysical conditions, with emphasis on thermosphere winds and temperature changes during storms, the effect of these changes on the ionosphere, and the feedback effect of ionospheric variations on the thermosphere. We invite contributions based on observations and simulations to address various aspects of the dynamical response of the coupled thermosphere and ionosphere to geomagnetic disturbances and the physical processes that drive this response.
Primary Convener:  Wenbin Wang, High Altitude Observatory, Boulder, CO, United States
Conveners:  Yue Deng, University of Texas Arlington, Arlington, United States and Vikas S Sonwalkar, University of Alaska Fairbanks, Fairbanks, AK, United States
Chairs:  Wenbin Wang, High Altitude Observatory, Boulder, CO, United States, Yue Deng, University of Texas at Arlington, Arlington, United States and Vikas S Sonwalkar, University of Alaska Fairbanks, Fairbanks, AK, United States
OSPA Liaison:  Wenbin Wang, High Altitude Observatory, Boulder, CO, United States

Cross-Listed:
  • SM - SPA-Magnetospheric Physics
Index Terms:

0355 Thermosphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
2427 Ionosphere/atmosphere interactions [IONOSPHERE]
2435 Ionospheric disturbances [IONOSPHERE]
3369 Thermospheric dynamics [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

A Study of 732.0 nm Dayglow Emission in Equatorial Region under Geomagnetic Storm Conditions (59871)
Vir Singh and Maneesha Dharwan, Indian Institute of Technology Roorkee, Roorkee, India
Equatorial All Sky Imager Images from the Seychelles during the March 17th, 2015 geomagnetic storm. (74240)
Brian Curtis, Naval Research Lab DC, Washington, DC, United States
Auroral LSTIDs and SAR Arc Occurrences in Northern California During Geomagnetic Storms (77067)
Asti Bhatt, SRI International Menlo Park, Menlo Park, CA, United States and Elizabeth A Kendall, SRI International, Menlo Park, CA, United States
Nitric Oxide Produced by Energetic Electron Precipitation During a Geomagnetic Storm in April 2010 (83568)
Christine Smith-Johnsen1, Hilde Nesse Tyssøy2, Linn-Kristine Glesnes Ødegaard2, Yvan Orsolini3,4, Frode Stordal5, Koen Hendrickx6 and Linda Susanne Megner7, (1)University of Oslo, Department of Geosciences, Oslo, Norway, (2)University of Bergen, Birkeland Centre for Space Science, Bergen, Norway, (3)Norwegian Institute for Air Research, Kjeller, Norway, (4)Norwegian University of Science and Technology, Trondheim, Norway, (5)University of Oslo, Department of geosciences, Oslo, Norway, (6)University in Stockholm, Department of Meteorology, Stockholm, Sweden, (7)Stockholm University, Stockholm, Sweden
Low latitude Ionospheric response to the recent super storm of 17 March 2015: Modeling perspectives and recent findings (64492)
Lalit Mohan Mohan Joshi, S Sripathi and Ram Singh, Indian Institute of Geomagnetism Mumbai, Navi Mumbai, Maharashtra, India
Statistical Characterization of Storm-Time GPS Total Electron Content Variations in the North American Sector (72455)
Evan G Thomas1, Joseph BH Baker1, J. Michael Ruohoniemi2, Anthea Coster3 and Shunrong Zhang3, (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (2)Virginia Polytechnic Institute and State University, Blacksburg, United States, (3)MIT Haystack Observatory, Westford, MA, United States
Thermospheric Wind Changes During and After the March 17, 2013 Geomagnetic Storm (73022)
Wenbin Wang1, Xinan Yue2, Alan Geoffrey Burns3 and Qian Wu3, (1)High Altitude Observatory, Boulder, CO, United States, (2)UCAR, Boulder, CO, United States, (3)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Investigating the response of the electron temperature to field-aligned currents using SWARM observations (75836)
Jie Zhu, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Aaron J Ridley, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States and Hermann Luhr, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany

See more of: SPA-Aeronomy