## T_MTOD

**simplified harmonic method of tidal prediction:**
prediction of tidal heights by combining a simplified set of harmonic constituents into a
single time/height curve.
**full harmonic method of tidal prediction:**
prediction of tidal heights by combining a complete set of harmonic constituents into a
single time/height curve.
**time and height difference non-harmonic method:**
prediction of high and low water times and heights by modification of the high and low
water times and heights of a known time/height curve.