2024 Workshop: midlatitude and subauroral aeronomy

The ionosphere and thermosphere at middle and subauroral latitudes serve as a compelling platform to investigate significant coupling processes involving chemistry, dynamics, and electrodynamics under the influences of space and terrestrial weather. Aeronomy research in middle and subauroral latitudes encompasses a wide range of CEDAR research areas. The following perspectives are of particular interest:

(1) Ionosphere-thermosphere climatology: an array of known anomalies exist in association with the seasonality, temporal evolution, geomagnetic configuration, and regional characteristics of the upper atmosphere.

(2) Short-term variability: perturbations caused by wave and impulsive forcing from the lower atmosphere to Earth's surface, by transient solar-terrestrial processes (such as solar flares and eclipses), as well as those not immediately known, form a comprehensive opportunity to investigate short-term ionospheric variability associated with day-to-day variability, atmospheric waves, traveling ionospheric disturbances, sporadic E, descending layers, and irregularities.

(3) Geospace storm perspective: Geospace regions serve as the interface region and pathway that connects the high-latitude energy deposition and low-latitude stops. Storm time disturbance winds, compositions, and electrodynamics have fundamental influences on the I-T system. Beyond this, unique M-I-T coupling processes exist at mid-latitudes: substantial subauroral electrodynamics (SAPS), density gradient structures (SED, midlatitude main trough, etc), and optical anomalies (SAR arc and STEVE).

This session invites researchers to engage in discussions on middle and subauroral latitude science, exploring the diverse perspectives mentioned earlier. Presentations can focus on periods of observational campaigns coordinated regionally or globally for variability or storm studies. Presentations are also sought to showcase recent research and advancements in this field utilizing both observations and model simulations. Additionally, studies focusing on closely related regions are encouraged. To foster dynamic and fruitful discussions, presenters are strongly encouraged to limit their presentations to 6-7 slides.