**Science / Tides and Currents / Non-Harmonic Constants:** Tidal constants such as lunitidal intervals, ranges, and inequalities which may be derived directly from high and low water observations without regard to the harmonic constituents of the tide. Also applicable to tidal currents.

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Science / Tides and Currents / Tidal Constants: Tidal relations that remain practically constant for any particular locality. Tidal constants are classified as harmonic and non-harmonic. The harmonic constants consist of the amplitudes and epochs o MORE

Science / Tides and Currents / Non-Harmonic Constants: Tidal constants such as lunitidal intervals, ranges, and inequalities which may be derived directly from high and low water observations without regard to the harmonic constituents of the tide. Also a MORE

Science / Tides and Currents / Harmonic Constants: The amplitudes and epochs of the harmonic constituents of the tide or tidal current at any place. MORE

Science / Tides and Currents / Current Constants: Tidal current relations that re-main practically constant for any particular locality. Current constants are classified as harmonic and non-harmonic. The harmonic constants consist of the am plitudes MORE