CEDAR email: Call for Abstracts: EGU25 Session (ST3.3)- Dynamics, Chemistry, and Coupling in the Middle Atmosphere and MLT Regions

[Khadka, Sovit (Orion)]

Dear CEDAR Community,

You are cordially invited to submit abstracts to the 2025 EGU General Assembly session (ST3.3) - Dynamics, Chemistry, and Coupling in the Middle Atmosphere and MLT Regions. This meeting will be held in Vienna, Austria & Online from April 27th to May 2nd, 2025.

         ****Session Details****
Session Title: ST3/AS3/PS4 - Dynamics, Chemistry, and Coupling in the Middle Atmosphere and MLT Regions
Section: Solar-Terrestrial Sciences (ST)
Session Link: https://meetingorganizer.copernicus.org/EGU25/session/53617
Primary Convener: Sovit Khadka, Orion Space Solutions, Colorado, USA
Conveners: Erin Dawkins, NASA Goddard Space Flight Center, Greenbelt, MD, USA
                     Linda Megner, Department of Meteorology, Stockholm University, Stockholm, Sweden
                     Maosheng He, National Space Science Center, Chinese Academy of Sciences, Beijing, China
                     Juan Antonio Añel, Applied Physics, EPhysLab, Universidade de Vigo, Ourense, Spain
Invited Speakers: Ludger Scherliess, Utah State University, Logan, Utah, USA
                                Claudia Stolle, Leibniz Institute of Atmospheric Physics, Kuhlüngsborn, Germany

Session Description:
The Earth's middle atmosphere, mesosphere, and lower thermosphere (MLT) region provide a great platform for studying ionospheric dynamics, disturbances, eddy mixing, atmospheric drag effects, and space debris tracking. The thermal structure of these regions is influenced by numerous energy sources such as solar radiation, chemical, and dynamical processes, as well as forces from both above (e.g. solar and magnetospheric inputs) and below (e.g. gravity waves and atmospheric tides). Solar atmospheric tides, related to global-scale variations of temperature, density, pressure, and wind waves, are responsible for coupling the lower and upper layers of the atmosphere and significantly impact their vertical profiles in the upper atmosphere. With evidence of climate change impacts on the middle and upper atmosphere, monitoring and understanding trends through observational data is critical. There has been a contraction of the stratosphere and a decrease in the density of the upper atmosphere, which could impact the accumulation of space debris. This session invites presentations on scientific work related to various experimental/observational techniques, numerical and empirical modeling, and theoretical analyses on the dynamics, chemistry, and coupling processes in the altitude range of ~ 20 km to 180 km of the middle atmosphere and MLT regions, including long-term climatic changes.

We look forward to your contribution to our EGU25 session.
Please note that the abstract submission deadline is Wednesday, 15 January 2025, 13:00 CET.

Thank you!
Sincerely,
Sovit Khadka, Erin Dawkins, Linda Megner, Maosheng He, and Juan Antonio Añel

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/cedar_email/attachments/20241204/476c0cb9/attachment-0001.htm>