Benchmark datasets for velocity measurements: Difference between revisions
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These datasets are temporarily in a [https://www.dropbox.com/sh/d24ee49naabfx40/AAAJhyjpsLpHv311Aa1fsRX0a?dl=0|read-only dropbox folder], and will eventually be housed at the BODC center with a DOI. | |||
{| class="wikitable" | {| class="wikitable" | ||
|+Summary of | |+Summary of potential benchmark datasets for testing existing and future algorithms | ||
|- | |- | ||
! style="width: 12%"| Dataset name | ! style="width: 12%"| Dataset name | ||
| Line 6: | Line 8: | ||
! Deployment height above bottom | ! Deployment height above bottom | ||
! Background speed | ! Background speed | ||
! | ! <math>\varepsilon</math> range | ||
! Stratification/shear information | ! Stratification/shear information | ||
! style="width: 20%"| Comment | ! style="width: 20%"| Comment | ||
| Line 20: | Line 22: | ||
| Tidal slough | | Tidal slough | ||
| 2.8 | | 2.8 | ||
| | | 0.45 | ||
| 0.15-0. | | 0.15-0.2 | ||
| 1e-8 | | 1e-8 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. | ||
|- | |- | ||
| Tidal shelf | | Tidal shelf low quality | ||
| 185 | | 185 | ||
| 0 | | 0.4 | ||
| <0. | | <0.3 but usually 0.1 | ||
| | | 1e-7 to 1e-4 | ||
| Bottom one in log-layer using the classical definition | | Bottom one in log-layer using the classical definition | ||
| Low-quality dataset | | 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 | ||
|- | |- | ||
| MAVS | | Tidal MAVS | ||
| | | 20 | ||
| | | 1.45 | ||
| | | 0.9 to 1.1 | ||
| | | 1e-3 | ||
| | | Weak stratification | ||
| | | Strong tidal flows | ||
|- | |||
| Intertidal small waves | |||
| {{FontColor|fg=white|bg=red|text=ask JM}} | |||
| 0.4 | |||
|<0.18 | |||
| {{FontColor|fg=white|bg=red|text=1e-6}} | |||
| coastal area with weak stratification | |||
| std(U)/mean(U) is roughly 1 (JM) | |||
|} | |} | ||
[[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.
| 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) |
