Repository: Freie Universit├Ąt Berlin, Math Department

A statistical-mechanical approach to study the hydrodynamic stability of stably stratified atmospheric boundary layer

Nevo, G. and Vercauteren, N. and Kaiser, A. and Dubrulle, B. and Faranda, D. (2017) A statistical-mechanical approach to study the hydrodynamic stability of stably stratified atmospheric boundary layer. Physical Review Fluids, 2 (8). 084603.

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Official URL: https://journals.aps.org/prfluids/pdf/10.1103/Phys...

Abstract

We study the hydrodynamic equilibrium properties of the stably stratified atmospheric boundary layer from measurements obtained in the Snow-Horizontal Array Turbulence Study (SnoHATS) campaign at the Plaine Morte Glacier in the Swiss Alps. Our approach is based on a combination of dynamical systems techniques and statistical analysis. The main idea is to measure the deviations from the behavior expected by a turbulent observable when it is close to a transition between different metastable states. We first assess the performance of our method on the Lorenz attractor, then on a turbulent flow. The results show that the method recognizes subtle differences among different stable boundary layers turbulence regimes and may be used to help characterise their transitions.

Item Type:Article
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
Divisions:Department of Mathematics and Computer Science > Institute of Mathematics > Geophysical Fluid Dynamics Group
ID Code:2017
Deposited By: Ulrike Eickers
Deposited On:30 Jan 2017 14:10
Last Modified:08 Feb 2018 14:17

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