dorsal/arxiv
View SchemaEstimating Intermittency Exponent in Neutrally Stratified Atmospheric Surface Layer Flows: A Robust Framework based on Magnitude Cumulant and Surrogate Analyses
| Authors | Sukanta Basu, Efi Foufoula-Georgiou, Bruno Lashermes, Alain Arneodo |
|---|---|
| Categories | |
| ArXiv ID | physics/0701219 |
| URL | https://arxiv.org/abs/physics/0701219 |
| DOI | 10.1063/1.2786001 |
Abstract
This study proposes a novel framework based on magnitude cumulant and surrogate analyses to reliably detect and estimate the intermittency coefficient from short-length coarse-resolution turbulent time series. Intermittency coefficients estimated from a large number of neutrally stratified atmospheric surface layer turbulent series from various field campaigns are shown to remarkably concur with well-known laboratory experimental results. In addition, surrogate-based hypothesis testing significantly reduces the likelihood of detecting a spurious non-zero intermittency coefficient from non-intermittent series. The discriminatory power of the proposed framework is promising for addressing the unresolved question of how atmospheric stability affects the intermittency properties of boundary layer turbulence.
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"abstract": "This study proposes a novel framework based on magnitude cumulant and\nsurrogate analyses to reliably detect and estimate the intermittency\ncoefficient from short-length coarse-resolution turbulent time series.\nIntermittency coefficients estimated from a large number of neutrally\nstratified atmospheric surface layer turbulent series from various field\ncampaigns are shown to remarkably concur with well-known laboratory\nexperimental results. In addition, surrogate-based hypothesis testing\nsignificantly reduces the likelihood of detecting a spurious non-zero\nintermittency coefficient from non-intermittent series. The discriminatory\npower of the proposed framework is promising for addressing the unresolved\nquestion of how atmospheric stability affects the intermittency properties of\nboundary layer turbulence.",
"arxiv_id": "physics/0701219",
"authors": [
"Sukanta Basu",
"Efi Foufoula-Georgiou",
"Bruno Lashermes",
"Alain Arneodo"
],
"categories": [
"physics.flu-dyn",
"physics.ao-ph"
],
"doi": "10.1063/1.2786001",
"title": "Estimating Intermittency Exponent in Neutrally Stratified Atmospheric Surface Layer Flows: A Robust Framework based on Magnitude Cumulant and Surrogate Analyses",
"url": "https://arxiv.org/abs/physics/0701219"
},
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