Benchmark datasets for velocity measurements: Difference between revisions

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| coastal area with weak stratification
| coastal area with weak stratification
| std(U)/mean(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)- backburner
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| Lake
| 4.3
| 0.12
| <0.1m/s
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| Unstratified
| Shallow Lake (DW)- backburner
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[[Category:Velocity point-measurements]]
[[Category:Velocity point-measurements]]

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)