Diurnal

Science / Tides and Currents / Diurnal: Having a period or cycle of approximately one tidal day. Thus, the tide is said to be diurnal when only one high water and one low water occur during a tidal day, and the tidal current is said to be diurnal when there is a single flood and a single ebb period of a reversing current in the tidal day. A rotary current is diurnal if it changes its direction through all points of the compass once each tidal day. A diurnal constituent is one which has a single period in the constituent day. The symbol for such constituent is the subscript 1.See stationary wave theory and type of tide.
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Other Words for Diurnal

Diurnal Adjective Synonyms: daily, circadian, day-to-day, regular, everyday, quotidian, daytime
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Diurnal Inequality

Science / Tides and Currents / Diurnal Inequality: The difference in height of the two high waters or of the two low waters of each tidal day; also, the difference in speed between the two flood tidal currents or the two ebb currents of each tidal day MORE

Semidiurnal

Science / Tides and Currents / Semidiurnal: Having a period or cycle of approximately one-half of a tidal day. The predominant type of tide throughout the world is semidiurnal, with two high waters and two low waters each tidal day. The tidal c MORE

Small Diurnal Range (SL)

Science / Tides and Currents / Small Diurnal Range (SL): Difference in height between mean lower high water and mean higher low water. MORE