Benchmark datasets for velocity measurements: Difference between revisions

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Information is currently being transferred onto the wiki about the additional datasets.
These datasets are currently located in [https://doi.org/10.5281/zenodo.16798905 Zenodo].
They will eventually be housed at the BODC center.
 


{| class="wikitable"  
{| class="wikitable"  
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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
Line 20: Line 22:
!  
!  
|-
|-
| Tidal slough
| Tidal Slough ADV
| 2.8
| 2.8
| 0.15 and 0.45
| 0.45
| 0.15-0.2m/s (median)
| 0.15
| 1e-8 to1e-5
| 1e-7 to 1e-5
| Unstratified, but shear-induced anisotropy
| Unstratified, but shear-induced anisotropy
| Unusual spikes at 0.15 m. At 0.45m, the viscous subrange is occasionally resolved
| Viscous subrange is occasionally resolved. Another ADV at 0.15 m shows wrapping issues.
|-
| Tidal shelf
| 185
| 0.4 and 1.4
| <0.3m/s but usually 0.1m/s
|
| Bottom one in log-layer using the classical definition
| Low-quality dataset
|-
| Lake
|
|
|
|
|
| Shallow Lake (DW)
|-
|-
| Surface waves
| Tidal Shelf ADV
|  
| 250
|  
| 0.4
|  
| 0.26
|  
| 1e-7 to 1e-4
|  
| Stratified bottom log-layer
| large orbital sigma vs mean current (SM)
| High-quality dataset with phase wrapping. It overlaps with an ADCP Signature benchmark.
|-
|-
| Surface waves
| Underice MAVS
|  
| 353
|  
| 5
|  
| 0.03
|  
| 3e-9 to 7e-8
|  
| Weak stratification
| sigma/U is roughly 1 (JM)
| Under-ice boundary layer, MAVS suspended 5 m beneath the ice
|-
|-
| MAVS
| Tidal MAVS
|353
| 20
|248
| 1.45
|0.15 max.
| 1.1
|1e-8 to 1e-6
| 3e-4 to 1e-3
|weak stratification
| Weak stratification
|*under ice boundary layer, MAVS suspended 5m depth
| Strong tidal flows
|}
|}




[[Category:Velocity point-measurements]]
[[Category:Velocity point-measurements]]

Latest revision as of 21:21, 5 May 2026

These datasets are currently located in Zenodo. They will eventually be housed at the BODC center.


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
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