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15.1. Measurement Quality Checks

The ADQA evaluates the effect of the data marked invalid on the computed discharge using the total discharge estimated for all invalid ensembles and the discharge estimated in consecutive invalid ensembles. The resulting messages are preceded by WT- and the filter resulting in the warning message and by wt- and the filter resulting in the caution message. For example, All (WT-All), Original (WT-Original), Error Velocity (WT-ErrorVel), Vertical Velocity (WT-VertVel), Other (WT-Other), and 3 Beams (WT-3Beams).
 
Good (Green)
 
Check—No filters exceeded prescribed thresholds.
 
Caution (Yellow)
 
Check—More than 10 percent of the discharge is interpolated for ensembles and cells with an invalid WT velocity due to specified filter.
Message—wt-filter: Interpolated discharge for invalid cells and ensembles in a transect exceeds 10 percent.
 
Check—More than 3 percent of the discharge is interpolated for consecutive ensembles with an invalid WT velocity due to specified filter.
Message—wt-filter: Interpolated discharge for consecutive invalid ensembles exceeds 3 percent.
 
Warning (Red)
 
Check—More than 25 percent of the discharge is interpolated for ensembles with an invalid WT velocity due to specified filter.
Message—WT-filter: Interpolated discharge for invalid ensembles in a transect exceeds 25 percent.
 
Check—More than 5 percent of the discharge is interpolated for consecutive ensembles with an invalid WT velocity due to specified filter.
Message—WT-filter: Interpolated discharge for consecutive invalid ensembles exceeds 5 percent.