Repository: Freie Universität Berlin, Math Department

Flow Structures and Scale Interactions in Stable Atmospheric Boundary Layer Turbulence

Vercauteren, N. and Belušić, D. (2019) Flow Structures and Scale Interactions in Stable Atmospheric Boundary Layer Turbulence. In: Turbulent Cascades II - Proceedings of the Euromech-ERCOFTAC Colloquium 589. ERCOFTAC, 26 . Springer, pp. 275-281. ISBN Print ISBN 978-3-030-12546-2 Online ISBN 978-3-030-12547-9

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Atmospheric boundary layer turbulence in stably stratified conditions is characterised by an intermittent, unsteady behaviour. The intermittency can result from localised flow acceleration due to non-turbulent motions, which can exhibit structures such as ramp-cliff convective patterns, waves or microfronts. Based on a timeseries clustering method, we characterise interactions between scales of motion in a dataset of near-surface stable boundary layer turbulence. Individual flow structures are investigated in two weak-wind flow regimes exhibiting distinct scale interaction properties. The signature of flow structures differs despite comparable wind and stability properties.

Item Type:Book Section
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
Divisions:Department of Mathematics and Computer Science > Institute of Mathematics > Geophysical Fluid Dynamics Group
ID Code:2395
Deposited By: Ulrike Eickers
Deposited On:11 Feb 2020 09:22
Last Modified:11 Feb 2020 09:22

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