GEOGRAPHY & CARTOGRAPHY CALCULATOR
Parameterstide Height
A precise tool.
What is the Parameterstide Height & How does it work?
Tidal motions are primarily driven by the gravitational pull of the Moon and the Sun. Harmonic analysis decomposes the observed sea‑level signal into a sum of sinusoidal constituents, each representing a specific astronomical forcing.
The principal lunar semidiurnal constituent, known as M2, has a period of about 12.42 hours and usually dominates the tidal range. By measuring its amplitude and phase, we can predict the tidal height at any future time.
The harmonic tide‑prediction formula combines all selected constituents. For a single constituent it reduces to a simple cosine function.
h(t) = A cos(omega t + phi)
h(t) = tidal height at time t; A = amplitude (m); omega = angular frequency (rad·h⁻¹); phi = phase angle (rad)
Parameters
Result
—
Frequently Asked Questions
What is the principal lunar semidiurnal constituent in tidal predictions?
The principal lunar semidiurnal constituent is M2, which has a period of about 12.42 hours and usually dominates the tidal range.
How do harmonic tide-prediction formulas work?
Harmonic tide-prediction formulas decompose observed sea-level signals into sinusoidal constituents representing specific astronomical forcings, allowing prediction of tidal heights at any future time.
What factors drive tidal motions?
Tidal motions are primarily driven by the gravitational pull of the Moon and the Sun.
How can measuring M2’s amplitude and phase help in predicting tides?
By measuring the amplitude and phase of M2, we can accurately predict tidal heights at any future time.
What is the period of the principal lunar semidiurnal constituent?
The period of the principal lunar semidiurnal constituent (M2) is about 12.42 hours.
Why is M2 usually the dominant tidal range?
M2 is usually the dominant tidal range because it has a significant gravitational influence and a relatively short period, making its effects more noticeable.
How does harmonic analysis contribute to tide prediction?
Harmonic analysis breaks down observed sea-level signals into simpler sinusoidal components, each representing different astronomical forces, which are then combined to predict tidal heights.
Results are for informational purposes only and do not constitute professional advice.