Wildfire smoke is a major and growing driver of population exposure to air pollution across much of the Northern Hemisphere, with recent record-breaking events revealing the limits of current forecast skill. This gap reflects atmospheric physics that remain incompletely resolved across many scales, including plume-rise thermodynamics, pyroconvection, boundary-layer entrainment, mesoscale transport, and long-range advection, which together determine where, when, and at what concentrations smoke reaches populations as fire regimes intensify under a warming climate. This session invites observational, theoretical, and modeling studies on the dynamics of wildfire smoke transport and dispersion. Topics include plume rise and pyroconvection; boundary-layer mixing and entrainment; mesoscale and long-range transport; smoke radiative effects and aerosol-dynamics feedbacks; observational constraints from satellite, airborne, and ground-based measurements; coupled fire-atmosphere and chemistry-transport modeling; physics-informed machine learning; and propagation of dynamical uncertainty into exposure estimates. We welcome contributions connecting plume-scale physics to continental-scale predictability and population exposure.

• GC - Global Environmental Change
• GH - GeoHealth
• IN - Informatics
• NH - Natural Hazards