CEDAR email: Fall AGU sessionon vertical coupling of the lower atmosphere to the TI system"

Astrid Maute maute at ucar.edu
Fri Jul 10 10:23:21 MDT 2015

Dear Colleagues

We welcome and encourage submissions to the Fall AGU session SA 019:
"Vertical coupling of the lower atmosphere to the thermosphere-ionosphere
Abstracts are due on August 5, 2015.
We are look forward to seeing you in San Francisco.

Best regards,
Larisa Goncharenko, Astrid Maute, John McCormack, and Ruth Lieberman

SA019: Vertical coupling of the lower atmosphere to the
thermosphere-ionosphere system

Session ID#: 9149
Session Description:
The coupling between the lower atmosphere (0-90 km altitude) and the
thermosphere-ionosphere (TI) system is complex, dynamic, and not well
understood. During the last extreme solar minimum, the effects of strong,
persistent meteorological disturbances were measured in the ionosphere,
and possible coupling mechanisms were identified. These mechanisms include
changes in the dynamics of the background neutral atmosphere, modification
of tides, and subsequent variations in electric field. This session
contributions from theoretical, modeling, and observational perspectives
that address the following key unresolved questions regarding vertical

(1) What are the effects of lower atmospheric forcing on the TI system in
the low and mid-latitude regions?

(2) What are the possible vertical coupling mechanisms in the low and
mid-latitude region?

(3) How can we characterize the variability in the middle atmosphere
and TI under various geospace conditions and possible connections using
both modeling and observational methods?
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