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- There are two timestamps within the search window both , one before and one after the extreme, where the absolute difference between the peak extreme and the value is greater than the validDifferenceExceedence. The value before the peak extreme is called firstThresholdCrossing in this method, the value after the peak extreme is called the secondThresholdCrossing.
- Missing values are not allowed between the peak extreme and the two threshold valuescrossings.
A peak value is invalid if:
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The transformation produces two non-equidistant output series with timestamps of the high tide extremes: one serie series holds the water level, the other series holds the associated tide number.
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