Group seminar on 4. June, 14:15
Quantification of the Vertical Momentum Fluxes in the Tropics and forcing of the QBO
Valentino Neduhal
The transfer of momentum by atmospheric waves is an essential process in the global momentum budget of the atmosphere. As the waves propagate upward and dissipate, they force large-scale atmospheric flows, such as the quasi-biennial oscillation (QBO) in the tropical stratosphere. However, the contributions to the momentum budget of different types of resolved waves, such as Kelvin, equatorial Rossby, mixed Rossby-gravity, and inertia-gravity waves across scales, are still highly uncertain. In this talk, I will quantify and discuss the regime and scale-dependent momentum fluxes and forcings in the QBO region using our novel method.