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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Official URL: https://doi.org/10.1007/978-3-030-12547-9_29
Abstract
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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