AdjustTide
Input
- observedTidalStage
- forecastTidalStage
- tideBalance
Output
- adjustedTidalStage
Description
The AdjustTide operation corrects a simulated tide with an observed tidal time series and a set of balances. The balances are calculated by the transformation tidalBalance. When observed data is available, the observed data will be used for the output time series. When no observed data is available the balances and the simulated tidal time series are combined to create an adjusted tide. First the times of the peaks and valleys are determined. They are already calculated by the tideBalance transformation and located at the times at which the tideBalance operation has written the balances. The estimated peaks and valleys of the tideBalance operation and the peaks and valleys of the simulated tidal time series are matched. The adjusted peaks and valleys are calculated by adjusting the simulated peaks and valleys with the matched balance.
Hadjusted = Hsimulated + balance
The value of the adjusted tidal time series between the peaks and valleys are calculated using a cosinus interpolation. The formula which is used for the interpolation is:
Δ = |tmax - tmin|
Φ = π*(tmax - tmin)/Δ
Hadjusted = Hmin + |Hmax - Hmin|*(cos(Φ)+1)/2
Configuration example
