Internal gravity waves from mountains 

and convective clouds and their interactions

Jaemyeong Mango Seo, Los Alamos National Laboratory

10/30, 2023 at 11:30am-12:30pm (virtual)

https://mcmaster.zoom.us/j/94822925263?pwd=SitnUVpvQldERlpsMWdHZzZRTjlyZz09

In a stably stratified atmosphere, many forcings, such as mountains, convective clouds, and fronts, generate flows and internal gravity waves (IGWs). IGWs generated in the troposphere propagate into the middle atmosphere to modulate upper atmospheric flows, which in turn affects tropospheric dynamics. Mountains mechanically disturb atmosphere, and the atmospheric perturbations propagate as IGWs. Condensation of water vapor in convective clouds releases latent heat, which also thermally disturbs the atmosphere and is another source of IGWs. Orographically and convectively generated IGWs propagate vertically and horizontally, are refracted and reflected, and interact with each other in the atmosphere. This talk will present how IGWs generated by mountains and convective clouds in various atmospheres are mathematically described, and how their propagation, reflection, and interactions are analyzed.