Tidal Prediction. Forecasting of times and heights of tidal undulation at a given place; or of the rise or fall in sea level at a given place at a given time.
Tidal River. River whose depth and rate of flow are affected by tides of the sea.
Tidal Species. The different categories into which tides and component tides can be placed. Principal are Diurnal, Semidiurnal, Quarter Diurnal, and Long Period. Mixed tides result from combination of two or more of these.