Example figures: underflow frequency of velocity limits

Explanations

Frequency [0.0,1.0] for which the current velocity underflows a given velocity threshold within the period of data analysis.

• left top: result for threshold 0.1 m/s.
• right top: result for threshold 0.5 m/s.
• left bottom: result for threshold 0.9 m/s.
• right bottom: result for threshold 1.3 m/s.

Please notice that frequency cannot reach a value of 1.0 in temporarily dry areas (e.g. tidal flats).

Examples

current velocity < 0.1 m/s	current velocity < 0.5 m/s

current velocity < 0.9 m/s	current velocity < 1.3 m/s

Closely related quantities

• exceedance frequency of velocity limits
• duration of low current velocity

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back to Characteristic Numbers of Current Velocity (independent of tides)