Anti-Clutter Sea Control: An electronic circuit that suppresses clutter caused by the reflection of echoes from waves in a seaway. Sea clutter could obscure the return from other objects in the area. Also called stc (sensitivity time control).

 

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Anti-Clutter Sea Control: An electronic circuit that suppresses clutter caused by the reflection of echoes from waves in a seaway. Sea clutter could obscure the return from other objects in the area. Also called stc . . . View Full Definition

Sea Level: The height or level of the sea surface at any time. It is used as a reference for elevations above and below.

Sea Legs: The ability to move around on a ship without losing balance and without sea sickness.

Sea Level Datum (SLD): An obsolete term. See National Geodetic Vertical Datum of 1929 and mean sea level.

Sea Ice: Ice that is formed by the freezing of sea water. It forms first as small crystals, thickens into sludge, and coagulates into sheet ice, pancake ice, or ice floes of various shapes and sizes.

Sea Level Pressure: The atmospheric pressure at mean sea level, usually determined from the observed station pressure.

Sea Return: Clutter on the radarscope which is the result of the radar signal being reflected from the sea, especially near the ship.

Sea Mile: A unit of length distinguished from a nautical mile. One sea mile is equivalent to 1,000 fathoms (6,000 feet).

Sea Fog: A type of advection fog which forms in warm moist air cooled to saturation as the air moves across cold water.

Sea Breeze Front: A coastal phenomena, it is restricted to large bodies of water and their immediate coast lines. This is usually the landward extent of the sea breeze. Due to the imbalance of heating between . . . View Full Definition