Seminarium fizyki atmosfery

Intermittency, coherency, pulse: wavelet-based analyses

dr Jun-Ichi Yano

Meteo-France, Toulouse


18 listopada 2022 13:15, ul. Pasteura 5, B4.58 (NEW LOCATION) and online via ZOOM

Standard classical turbulence theories assume homogeneity and isotropy. However, turbulence found in reality, including those in the atmosphere (not only in the boundary layer), hardly satisfies those conditions. Instead, typical turbulence involves extensive intermittencies, associated with coherencies, with the latter often take pluse-like structures.
Unfortunately, a standard analysis method based on Fourier transform is often not appropriate to quantify those realistic turbulence characteristics, due to its "global" nature of quantifications.
In this talk, I propose the wavelet as an alternative methodology for the quantifications by exploiting its capacity of both the scales and the localizations of the structures.


PRESENTATION SLIDES: Intermittency, coherency, pulse: wavelet-based analyses

Yano_wavelet_presentation.pdf (3 MiB) Uploaded: 18 listopada 2022 12:48

Bieżące wydarzenia
Wydarzenia archiwalne