ACINN Graduate Seminar - WS 2025/26

2025-12-03 at 12:00 (on-line and on-site)

Turbulence anisotropy, pressure and turbulence organization

Ivana Stiperski

ACINN, University of Innsbruck

 

Turbulence anisotropy is one of the fundamental characteristics of atmospheric boundary layer turbulence. It has also been recently shown to allow Monin-Obukhov similarity theory to be extended beyond its limits of applicability to complex terrain settings. Yet, what are the processes driving anisotropy? Here I use observations from four turbulence towers in flat and horizontally homogeneous terrain to explore the evolution of anisotropy as the stratification becomes increasingly unstable, with a special focus on the role of turbulence pressure fluctuations, and organization of turbulence into coherent structures.

 

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