Repository: Freie Universit├Ąt Berlin, Math Department

Statistical investigations of flow structures in different regimes of the stable boundary layer

Vercauteren, N. and Boyko, V. and Kaiser, A. and Belusic, D. (2018) Statistical investigations of flow structures in different regimes of the stable boundary layer. Boundary Layer Meteorology . (Submitted)

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Official URL: https://arxiv.org/abs/1810.09332

Abstract

A combination of methods originating from non-stationary timeseries analysis is applied to two datasets of near surface turbulence in order to gain insights on the non-stationary enhancement mechanism of intermittent turbulence in the stable atmospheric boundary layer (SBL). We identify regimes of SBL turbulence for which the range of timescales of turbulence and submeso motions, and hence their scale separation (or lack of separation) differs. Ubiquitous flow structures, or events, are extracted from the turbulence data in each flow regime. We relate flow regimes characterised by very stable stratification but different scales activity to a signature of flow structures thought to be submeso motions.

Item Type:Article
Additional Information:SFB 1114 Preprint in arXiv:1810.09332
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
Divisions:Department of Mathematics and Computer Science > Institute of Mathematics > Geophysical Fluid Dynamics Group
ID Code:2280
Deposited By: Ulrike Eickers
Deposited On:22 Oct 2018 14:29
Last Modified:11 Jan 2019 09:41

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