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Eng ID Term Definition
4481
route: recommended
A route of undefined width, for the convenience of ships in transit, which is often marked by centreline buoys.
4482
route (or routeing) chart
See CHART.
4483
routeing
A complex of measures concerning routes followed by ships and aiming at reducing the risk of casualties (TRAFFIC SEPARA­TION SCHEMES, DEEP-D... more
A complex of measures concerning routes followed by ships and aiming at reducing the risk of casualties (TRAFFIC SEPARA­TION SCHEMES, DEEP-DRAUGHT ROUTES, areas to be avoided, etc.).
4484
routeing guide
A document designed to be used in conjunction with nautical charts and other nautical publications in areas where complex routeing systems h... more
A document designed to be used in conjunction with nautical charts and other nautical publications in areas where complex routeing systems have been established by the IMO.
4485
routeing system
Any system of one or more routes or routeing measures aimed at reducing the risk of casu­alties; it includes traffic separation schemes, two... more
Any system of one or more routes or routeing measures aimed at reducing the risk of casu­alties; it includes traffic separation schemes, two-way routes, recommended tracks, areas to be avoided, inshore traffic zones, roundabouts, precautionary areas and deep-water routes.
4486
rubble
Fragments of hard SEA ICE, roughly spherical and up to 1,5 METRES (5 FEET) in diameter, resulting from the disintegration of larger ice form... more
Fragments of hard SEA ICE, roughly spherical and up to 1,5 METRES (5 FEET) in diameter, resulting from the disintegration of larger ice formations. When afloat, commonly called BRASH ICE. Loose angular rock frag­ment.
4487
rubidium vapour magnetometer
See MAGNETOMETER.
4488
rudite (or rudyte)
Rock or sediment DEPOSITS composed of grains larger than 2 millimetres.
4489
ruin
A ruin is a structure in a decayed or deteriora­ted condition resulting from neglect or disuse, or a damaged structure in need of repair. A ... more
A ruin is a structure in a decayed or deteriora­ted condition resulting from neglect or disuse, or a damaged structure in need of repair. A ruin is consi­dered hazardous if it extends over or into navigable waters and thus represents a danger to surface naviga­tion.
4490
ruling
A mechanically produced series of equally-spaced parallel lines at a predetermined 'angle of ruling'. Used to distinguish particular areas o... more
A mechanically produced series of equally-spaced parallel lines at a predetermined 'angle of ruling'. Used to distinguish particular areas of a MAP by providing a paler shade of the full printing co­lour.
4491
run
A BROOK, or small CREEK. The distance travelled by a craft during any given time interval, or since leaving a designated place. Complete per... more
A BROOK, or small CREEK. The distance travelled by a craft during any given time interval, or since leaving a designated place. Complete performance of one PROGRAMME on a COMPUTER.
4492
run a line of soundings
(v.t.). To obtain SOUNDINGS along a LINE OF SOUNDING, for surveying purposes.
4493
runnel
The smallest of natural STREAMS; a BROOK or RUN. A TROUGH or corrugation formed in the FORESHORE or in the BOTTOM, immediately offshore, for... more
The smallest of natural STREAMS; a BROOK or RUN. A TROUGH or corrugation formed in the FORESHORE or in the BOTTOM, immediately offshore, formed by WAVES or TIDAL CURRENTS.
4494
running fix
See FIX.
4495
running survey
See SURVEY.
4496
run of micrometer
See ERROR OF RUN.
4497
run-up
The rush of water up a structure on the brea­king of a WAVE. The amount of run-up is the vertical HEIGHT above STILL WATER LEVEL that the ru... more
The rush of water up a structure on the brea­king of a WAVE. The amount of run-up is the vertical HEIGHT above STILL WATER LEVEL that the rush of water reaches. See UPRUSH.
4498
runway
A defined area, on a land aero­drome, prepared for the landing and take-off run of aircraft.
4499
runway light(s)
See LIGHT.
4500
sac
An INDENTATION in the CONTOURS on a CHART showing SUBMARINE RELIEF which is analogous to a GULF on the surface. The opposite term is SUBMARI... more
An INDENTATION in the CONTOURS on a CHART showing SUBMARINE RELIEF which is analogous to a GULF on the surface. The opposite term is SUBMARINE PENINSULA.