A buoy marking a channel

Related Terms

PORE

A small channel or opening in a filter medium which allows passage of fluid.

HYDRAULIC CURRENT

A current in a channel caused by a difference in the surface level at the two ends. Such a current may be expected in a strait connecting two bodies of water in which the tides differ in time or range. The current in the East River, N.Y., connecting Long Island Sound and New York Harbor, is an example.

ICE JAM

An accumulation of broken river ice or sea ice caught in a narrow channel

LATERAL SYSTEM

A system of aids to navigation in which characteristics of buoys and beacons indicate the sides of the channel or route relative to a conventional direction of buoyage (usually upstream).

LATERAL MARK

A navigation aid intended to mark the sides of a channel or waterway

LEVEE

1. An artificial bank confining a stream channel or limiting adjacent areas subject to flooding. 2. on the sea floor, an embankment bordering a canyon, valley, or sea channel

LOCAL NOTICE TO MARINERS

A notice issued by each U.S. Coast Guard District to disseminate important information affecting navigational safety within the District. The Local Notice reports changes to and deficiencies in aids to navigation maintained by and under the authority of the U.S. Coast Guard. Other information includes channel depths, new charts, naval operations, regattas, etc. Since temporary information, known or expected to be of short duration, is not included in the weekly Notice to Mariners published by th

AQUEDUCT

A conduit or artificial channel for the conveyance of water, often elevated, especially one for the conveyance of a large quantity of water that flows by gravitation.

BANK SUCTION

The bodily movement of a ship toward the near bank due to a decrease in pressure as a result of increased velocity of flow of water past the hull in a restricted channel

BIFURCATION BUOY

A buoy which indicates the place at which a channel divides into two

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