What type of tide features one high and one low per day?

Prepare for the Officer of the Deck (OOD) Phase 2 exam with our comprehensive quiz. Use flashcards and multiple choice questions, with hints and explanations. Ensure your success today!

The feature of a tide that includes one high and one low tide per day is known as a diurnal tide. This type of tidal pattern typically occurs in locations where the geographical and oceanographic conditions cause the influence of the moon and sun to result in a single cycle of rising and falling water levels within a 24-hour period.

Unlike mixed semi-diurnal tides, which exhibit two high tides and two low tides of varying heights within the same day, diurnal tides are characterized by their simpler rhythm. In coastal areas that experience diurnal tides, mariners and coastal residents need to adjust their activities according to the predictable timing of these tides, which can influence navigation, fishing, and other marine operations.

Spring and neap tides refer to the magnitude of the tides during specific lunar phases, but they still follow either a diurnal or semi-diurnal pattern rather than being a classification of daily occurrences. Therefore, when asked about the specific tide type that features one high and one low per day, diurnal is the correct answer.

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