Benchmark datasets for velocity measurements: Difference between revisions

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! style="width: 12%"| Dataset name
! style="width: 12%"| Dataset name
! Total depth
! Total depth
! Deployment height above bottom
! Deployment distance from boundary
! Background speed
! Background median speed
! <math>\varepsilon</math> range
! <math>\varepsilon</math> range
! Stratification/shear information
! Stratification/shear information
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| 2.8
| 2.8
|  0.45
|  0.45
| 0.15-0.2
| 0.15
| 1e-8 to 1e-5
| 1e-7 to 1e-5
| Unstratified, but shear-induced anisotropy
| Unstratified, but shear-induced anisotropy
| Viscous subrange is occasionally resolved. Another ADV at 0.15 m shows wrapping issues.
| Viscous subrange is occasionally resolved. Another ADV at 0.15 m shows wrapping issues.
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| 250
| 250
| 0.4
| 0.4
| <0.65
| 0.26
| 1e-7 to 1e-5
| 1e-7 to 1e-4
| Stratified bottom log-layer  
| Stratified bottom log-layer  
| High-quality dataset with phase wrapping. It overlaps with an ADCP Signature benchmark.
| High-quality dataset with phase wrapping. It overlaps with an ADCP Signature benchmark.
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| Underice MAVS
| Underice MAVS
| 353
| 353
| 248
| 5
| 0.05
| 0.03
| 1e-8 to 1e-6
| 3e-9 to 7e-8
| Weak stratification
| Weak stratification
| Under-ice boundary layer, MAVS suspended 5m depth
| Under-ice boundary layer, MAVS suspended 5 m beneath the ice
|-
|-
| Tidal MAVS
| Tidal MAVS
| 20
| 20
| 1.45
| 1.45
| 0.9 to 1.1
| 1.1
| 1e-3
| 3e-4 to 1e-3
| Weak stratification
| Weak stratification
| Strong tidal flows
| Strong tidal flows

Revision as of 16:29, 4 May 2026

These datasets are temporarily in a 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 distance from boundary Background median speed ε range Stratification/shear information Comment
Units [m] [m] [m/s] [W/kg]
Tidal Slough ADV 2.8 0.45 0.15 1e-7 to 1e-5 Unstratified, but shear-induced anisotropy Viscous subrange is occasionally resolved. Another ADV at 0.15 m shows wrapping issues.
Tidal Shelf ADV 250 0.4 0.26 1e-7 to 1e-4 Stratified bottom log-layer High-quality dataset with phase wrapping. It overlaps with an ADCP Signature benchmark.
Underice MAVS 353 5 0.03 3e-9 to 7e-8 Weak stratification Under-ice boundary layer, MAVS suspended 5 m beneath the ice
Tidal MAVS 20 1.45 1.1 3e-4 to 1e-3 Weak stratification Strong tidal flows