diurnal tide

…measurable; these are the lunar diurnal, the lunar semidiurnal, the solar diurnal, and the solar semidiurnal tides. Diurnal tides have a period of approximately 24 hours (1 day), and semidiurnal tides have a period of approximately 12 hours (1/2 day). The actual amplitudes of these tides in terms of vertical…

…of all three tidal types—diurnal (daily), semidiurnal (twice daily), and mixed—can be found in the Indian Ocean, although semidiurnal are the most widespread. Semidiurnal tides prevail on the coast of eastern Africa as far north as the Equator and in the Bay of Bengal. The tides are mixed in…

…Atlantic—which are almost always semidiurnal (twice-daily) occurrences—those of the Pacific include many instances of diurnal (daily) and mixed tides. In the diurnal type of tidal oscillation, only a single high water and a single low water occur each tidal day (which lasts for about 24 hours and 50 minutes).…