CEDAR email: Fall AGU session: "Inter-hemispheric differences in high-latitude geospace"

Karl M. Laundal karl.laundal at ift.uib.no
Sun Jul 3 08:55:00 MDT 2016


We invite you to submit an abstract to the AGU fall meeting session
"Inter-hemispheric differences in high-latitude geospace"

We have two invited presenters:
Bob Lysak will give a presentation about why electron precipition is more
energetic in the dark hemisphere than in the sunlit hemisphere.
Michael Hesse will present MHD model results on how the locations of the
aurora in the two hemispheres change with IMF By.
(specific titles TBD)


Session Title: Inter-hemispheric differences in high-latitude geospace

Session Description:
Our knowledge about the Sun-Earth interaction is to a large extent based on
measurements from only the northern hemisphere. Recent datasets (SuperDARN,
SuperMAG, AMPERE, satellite imaging and statistics from satellites such as
CHAMP, Cluster and Swarm) provide measurements of several key parameters
from both hemispheres simultaneously. Studies reveal that there are
important differences between the hemispheres that depend on external
drivers and on differences in ionospheric and thermospheric feedback (M-I-T
coupling). This includes, e.g., the dawn-dusk (By) component of the
interplanetary magnetic field (IMF), which is known to affect the two
hemispheres differently in a number of ways. This session calls for papers
exploring interhemispheric asymmetries, and high latitude geospace as a
two-hemisphere system. We welcome studies using conjugate observations,
statistical techniques, as well as simulations and theoretical
considerations.

The session is cross-listed in the aeronomy and magnetosphere sections. The
session ID is 12788. The submission deadline is 3 August.


Conveners:
Karl M. Laundal
Matthias Förster
Nikolai Østgaard
Timo Pitkänen
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