SA23B:
Magnetosphere-Ionosphere-Thermosphere Coupling in the Polar Cap: Drivers and Impacts II Posters
SA23B:
Magnetosphere-Ionosphere-Thermosphere Coupling in the Polar Cap: Drivers and Impacts II Posters
Magnetosphere-Ionosphere-Thermosphere Coupling in the Polar Cap: Drivers and Impacts II Posters
Session ID#: 7824
Session Description:
The polar cap is a dynamic region of the geospace environment where the magnetosphere, ionosphere, and thermosphere (MIT) combine to give rise to a rich variety of interactions. For example, there is increasing evidence that energy dissipation and Joule heating of ions and neutrals occur at very high latitudes, and are not restricted to the auroral zones. Localized maxima in observed Poynting fluxes and neutral densities have been identified in the polar caps at all local times in both hemispheres during periods of high magnetic activity. These new observations radically revise the current paradigm for the MIT response to magnetic forcing by the solar wind, and may be associated with a variety of polar cap phenomena (e.g., polar cap patches, scintillation). We solicit presentations of high latitude MIT coupling during all periods of magnetic activity, as well as modeling approaches to high-latitude forcing.
Primary Convener: Cheryl Y Huang, Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States
Conveners: Andrew J Gerrard, New Jersey Institute of Technology, Center for Solar-Terrestrial Research, Newark, NJ, United States, Yanshi Huang, University of New Mexico, Albuquerque, NM, United States and Gang Lu, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Chairs: Gang Lu, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States and Cheryl Y Huang, Air Force Research Laboratory Albuquerque, Albuquerque, NM, United States
OSPA Liaison: Yanshi Huang, HIT Harbin Institute of Technology, Shenzhen, Shenzhen, China
Cross-Listed:
- SH - SPA-Solar and Heliospheric Physics
- SM - SPA-Magnetospheric Physics
Index Terms:
2427 Ionosphere/atmosphere interactions [IONOSPHERE]
2431 Ionosphere/magnetosphere interactions [IONOSPHERE]
2475 Polar cap ionosphere [IONOSPHERE]
7954 Magnetic storms [SPACE WEATHER]
Abstracts Submitted to this Session:
Field-Line Tracing from Locations of Polar Cap Neutral Density Anomalies to the Magnetosphere (66419)
Pre-Storm effect at the equatorial, low and Mid-latitude Ionosphere and their possible causes (58618)
Response of the Ionospheric Convection Reversal and Associated Plasma Motions to Changes in the IMF (70917)
Ionospheric Plasma Circulation Associated with Polar Cap Arcs Detached from the Auroral Oval (74911)
See more of: SPA-Aeronomy