SM51F:
Recent Observational Findings and Modeling Efforts to Understand Small-Scale Magnetospheric Energy Input and Its Impact on the IT System II Posters


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Session ID#: 43969

Session Description:
The small-scale features observed in the ionosphere and thermosphere (for example, soft electron precipitation near the cusp and hot spots in the polar caps) suggest that the magnetospheric energy input and its deposition can be very localized. With recent addition of space observations (ex. ePOP and SWARM), their detailed features and physics mechanisms are about to be unveiled. On the other hand, modeling communities have not yet fully addressed such local phenomena.  The empirical models (ex. Ovation-prime and Weimer) smooth out such features during their averaging process. Global MHD models (ex. OpenGGCM, CMIT, and SWMF) have limitation due to its conducting fluid approach. Recently, new modeling methods emerge to address those missing physics, for instance coupling a kinetic electron transport model with the inner magnetosphere model. This session invites recent findings in the observations and current theoretical/modeling efforts to address the small-scale features in the MIT system.
Primary Convener:  Hyunju KIM Connor, University of Alaska Fairbanks, Fairbanks, AK, United States
Conveners:  Binzheng Zhang, High Altitude Observatory, Boulder, CO, United States and Gang Lu, National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Primary Liaison:  Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States
Chairs:  Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Binzheng Zhang, High Altitude Observatory, Boulder, CO, United States
OSPA Liaison:  Hyunju KIM Connor, NASA Goddard Space Flight Center, Greenbelt, MD, United States

Cross-Listed:
  • SA - SPA-Aeronomy
Index Terms:

2431 Ionosphere/magnetosphere interactions [IONOSPHERE]
2475 Polar cap ionosphere [IONOSPHERE]
2721 Field-aligned currents and current systems [MAGNETOSPHERIC PHYSICS]
2736 Magnetosphere/ionosphere interactions [MAGNETOSPHERIC PHYSICS]

Abstracts Submitted to this Session:

A Simple Model of Auroral Conductances Based Solar Wind Inputs (467951)
Anna DeJong, Christopher Newport University, Newport News, United States
Simulation Study of Small-scale Ion Upflow Dynamics from Electron Precipitation (420042)
Brent Sadler, University of New Hampshire Main Campus, Durham, NH, United States, Marc Lessard, University of New Hampshire, Durham, United States and Antonius Otto, Geophysical Institute Fairbanks, Fairbanks, AK, United States
Ensemble Alfvén Wave Model for CHAMP Small-Scale Field-Aligned Currents (424231)
Marissa L L Hedlund1,2, William Lotko3,4 and Benjamin R Hogan3,5, (1)Coe College, Physics Department, Cedar Rapids, IA, United States, (2)National Center for Atmosphere Research, High Altitude Observatory, Boulder, CO, United States, (3)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States, (4)High Altitude Observatory, National Center for Atmospheric Research, Boulder, United States, (5)National Center for Atmospheric Research, High Altitude Observatory, Boulder, United States
Poynting Flux Measured on DMSP Satellites and Its Influence on the Thermosphere (424253)
Chao Yu1, Xiaoxin Zhang1, Fei He2 and Wenbin Wang3, (1)China Meteorological Administration, Beijing, China, (2)Institute of Geology and Geophysics, Chinese Academy of Science, Beijing, China, (3)National Center for Atmospheric Research, High Altitude Observatory, Boulder, CO, United States
Key LIME: Observations of Unusual Auroral and Magnetic Field Signatures (439487)
Arun Aggarwal1, Martin G Connors1, Kyle Reiter1, Dr. Xiangning Chu2 and Brian J Jackel3, (1)Athabasca University, Athabasca, AB, Canada, (2)Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, (3)University of Calgary, Calgary, AB, Canada

See more of: SPA-Magnetospheric Physics