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ST2.10/PS4.8

Asymmetries in geospace and planetary environments (co-organized)
Convener: Paul Tenfjord  | Co-Conveners: Jennifer A. Carter , Rumi Nakamura 
Orals
 / Fri, 13 Apr, 10:30–12:00  / Room 1.61
Posters
 / Attendance Fri, 13 Apr, 17:30–19:00  / Hall X4
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The Sun-Earth interaction leads to a variety of asymmetric effects in geospace. In the ionosphere these appear, for example, as dawn-dusk asymmetries and inter-hemispheric asymmetries and in the magnetosphere they can be observed, for example, as warping of the plasma sheet, asymmetric loading of flux in the lobes, and in ion outflow.

Known causes of asymmetries include the orientation of the interplanetary magnetic field, the tilt angle of the Earth, solar irradiation, variations in magnetic field strength, and disparities in neutral wind forcing from below. As the state of geospace is a result of all these various factors, the most common state of geospace is indeed asymmetric.

This section calls for a papers exploring geospace in order to make progress in our understanding of the physical processes responsible for creating the asymmetric geospace. We welcome studies using observations, statistical techniques, as well as MHD modeling, simulations and theoretical considerations.
Studies of dynamics and asymmetries from other planets are also welcome.