Benchmark datasets for velocity measurements: Difference between revisions

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| Underice MAVS
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|0.05
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|1e-8 to 1e-6
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|weak stratification
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|*under ice boundary layer, MAVS suspended 5m depth
| Under-ice boundary layer, MAVS suspended 5m depth
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| Tidal MAVS
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| 0.9 to 1.1
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|weak stratification
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| Strong tidal flows
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| Intertidal small waves
| Intertidal small waves
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| coastal area with weak stratification
| sigma/U is roughly 1 (JM)
| std(U)/mean(U) is roughly 1 (JM)
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| Surface waves
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| large orbital sigma vs mean current (SM)
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| Lake
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[[Category:Velocity point-measurements]]
[[Category:Velocity point-measurements]]

Latest revision as of 20:01, 5 July 2022

These datasets are temporarily in a dropbox folder, and will eventually be housed at the BODC center with a DOI.

Summary of potential benchmark datasets for testing existing and future algorithms
Dataset name Total depth Deployment height above bottom Background speed [math]\displaystyle{ \varepsilon }[/math] range Stratification/shear information Comment
Units [m] [m] [m/s] [W/kg]
Tidal slough 2.8 0.45 0.15-0.2 1e-8 to 1e-5 Unstratified, but shear-induced anisotropy Viscous subrange is occasionally resolved. Another ADV at 0.15 m shows wrapping issues.
Tidal shelf low quality 185 0.4 <0.3 but usually 0.1 1e-7 to 1e-4 Bottom one in log-layer using the classical definition Low-quality & noisy dataset
Tidal shelf high quality 250 0.4 <0.65 1e-7 to 1e-5 Stratified bottom log-layer High-quality dataset with phase wrapping. It overlaps with an ADCP Signature benchmark.
Underice MAVS 353 248 0.05 1e-8 to 1e-6 Weak stratification Under-ice boundary layer, MAVS suspended 5m depth
Tidal MAVS 20 1.45 0.9 to 1.1 1e-3 Weak stratification Strong tidal flows
Intertidal small waves ask JM 0.4 <0.18 1e-6 coastal area with weak stratification std(U)/mean(U) is roughly 1 (JM)