CEDAR email: Call for Abstracts: AOGS-2025 Session (ST33)- Dynamics and Coupling in the Ionosphere, Thermosphere, and Mesosphere Driven by Forcing from Above and Below

[Khadka, Sovit (Orion)]

Dear Colleagues,



You are cordially invited to submit abstracts to the 2025 AOGS Annual Meeting session (ST33) - Dynamics and Coupling in the Ionosphere, Thermosphere, and Mesosphere Driven by Forcing from Above and Below. This meeting will be held in Marina Bay Sands, Singapore from July 27th to August 1st, 2025.



                  ****Session Details****

Session Title: ST33 - Dynamics and Coupling in the Ionosphere, Thermosphere, and Mesosphere Driven by Forcing from Above and Below

Section: Solar and Terrestrial Sciences (ST)

Session Link: https://www.asiaoceania.org/aogs2025/public.asp?page=submissions.asp#SA<https://urldefense.us/v2/url?u=https-3A__www.asiaoceania.org_aogs2025_public.asp-3Fpage-3Dsubmissions.asp-23SA&d=DwMF-g&c=L4IogQUxJwxc-F14PJeZBy0aL1nbCId3JgRjMgunPoM&r=t7TdHkH0JxHhzxjPIdrT_KasyFhRqh7UY9KqJYOesa4&m=z3b0-7PwBoFNru5-2OlZsR09I5Wj6yhKE_DPGWtdopLMTNlYbRWsqfysXcJv5Bbm&s=OGqYuHnYsrjOporcx6nf4dpezSdzGos_1TaoCa0kxH8&e=>

Primary Convener: Sovit Khadka, Orion Space Solutions, Colorado, USA

Conveners: Huixin Liu, Kyushu University, Fukuoka, Japan

                          Xing Meng, University of Science and Technology of China, Hefei, China

                          Duggirala Pallamraju, Physical Research Laboratory, Ahmedabad, India



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 on 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 activity, 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 science 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 AOGS-2025 session.

Please note that the abstract submission deadline is extended to Friday, 28 February 2025.



Thank you.



Sincerely,

Sovit Khadka, Huixin Liu, Xing Meng, and Duggirala Pallamraju
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