CEDAR email: Call for Abstracts: AOGS26 Session (ST28)- Dynamics and Coupling in the Ionosphere, Thermosphere, and Mesosphere Driven by Forcing from Above and Below

[Sovit Khadka]

Dear Colleagues,

We would like to invite you to submit abstracts to the 2026 AOGS Annual
Meeting session - "Dynamics and Coupling in the Ionosphere, Thermosphere,
and Mesosphere Driven by Forcing from Above and Below." The AOGS26 meeting
will take place from August 02 to 07, 2026, in Fukuoka, Japan.

          *****Session Details*****
*Session Title*: ST28 - Dynamics and Coupling in the Ionosphere,
Thermosphere, and Mesosphere Driven by Forcing from Above and Below
*Section*: Solar and Terrestrial Sciences
*Session Available*:
https://www.asiaoceania.org/AOGS2026/Session-and-Conveners
*Conveners*: Sovit Khadka, Huixin Liu, Xing Meng, and Duggirala Pallamraju

*Session Description:*
The ionosphere-thermosphere-mesosphere (ITM) region serves as a critical
transition zone where the neutral atmosphere transforms into ionized
plasma. This dynamic layer plays a pivotal role in Earth’s near-space
environment, responding strongly to solar, space, and terrestrial events.
Understanding the intricate variability, dynamics, and coupling processes
within the ITM system is essential for scientific exploration, practical
applications, and advancing current and future numerical modeling
capabilities. This region influences radio wave propagation, satellite
orbits, atmospheric drag on spacecraft, and global climate and weather
patterns. Advances in our understanding of ITM dynamics enhance our ability
to predict space weather threats to modern technological infrastructure,
which is a critical societal need. Not only do atmospheric waves
originating from the lower atmosphere impact the ITM system, but
high-latitude energy inputs (such as particle precipitation and Joule
heating) associated with solar and magnetospheric sources also play a
profound role in the dynamics, composition, and coupling of the ITM system.
By examining composition, neutral winds, pressure, temperature, electric
field, and neutral/electron/ion density due to forcing from above (solar
and geomagnetic activity) and below (polar vortex, tides, Kelvin waves,
planetary waves, and gravity waves originating in the lower atmosphere), we
gain valuable insights into the variability, dynamics, and coupling
mechanism between different layers in the ITM system. This session invites
contributions from the Solar-Terrestrial sciences community, highlighting
recent innovations in experimental techniques, observational tools, current
and future space mission plans, theoretical studies, and modeling efforts
to improve/advance our fundamental understanding of ITM dynamics and
vertical coupling driven by both external and internal forcing.

We look forward to your contribution to our AOGS26 session.
Please note that the abstract submission deadline is *Friday, 23 January
2026*, at *11:55 SGT*.

Thank you.

Sincerely,
*The Conveners Team:* Sovit Khadka, Huixin Liu, Xing Meng, and Duggirala
Pallamraju
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