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Eng ID Term Definition
4241
ramp
A sloping structure that can either be used, as a landing place, at variable water levels, for small vessels, landing ships, or a ferry boat... more
A sloping structure that can either be used, as a landing place, at variable water levels, for small vessels, landing ships, or a ferry boat, or for hau­ling a cradle carrying a vessel. An accumulation of SNOW that forms an inclined plane between land or land ice elements and SEA ICE or ICE SHELF. Also called drift ice foot.
4242
random error
See ERROR: ACCIDENTAL.
4243
range
Two or more objects in line. Such objects are said to be in range. An observer having them in range is said to be on the range. See also TRA... more
Two or more objects in line. Such objects are said to be in range. An observer having them in range is said to be on the range. See also TRANSIT. Distance in a single direction or along a GREAT CIR­CLE. The extreme distance at which an object or LIGHT can be seen, or a SIGNAL detected or used. The distance a craft can travel without refuelling, usually called CRUISING RADIUS. The difference in extreme values of a variable quan­tity.
4244
range: cruising
See CRUISING RADIUS.
4245
range: diurnal
The dif­ference in HEIGHT between MEAN HIGHER HIGH WATER and MEAN LOWER LOW WATER. Also called great diurnal range.
4246
range: geographic(al)
The greatest distance at which a LIGHT can be seen as a function of the curvature of the EARTH and the HEIGHTS of the light source and the o... more
The greatest distance at which a LIGHT can be seen as a function of the curvature of the EARTH and the HEIGHTS of the light source and the observer.
4247
range: great tropic
The difference in HEIGHT between TROPIC HIGHER HIGH WATER and TROPIC LOWER LOW WATER.
4248
range: luminous
The greatest distance at which a LIGHT can be seen merely as a function of its LUMINOUS INTEN­SITY, the METEOROLOGICAL VISIBIL­ITY, and th... more
The greatest distance at which a LIGHT can be seen merely as a function of its LUMINOUS INTEN­SITY, the METEOROLOGICAL VISIBIL­ITY, and the sensitivi­ty of the observer's eye.
4249
range: magnetic
A RANGE oriented in a given magnetic direction and used to assist in determination of the deviation of a MAGNETIC COMPASS. See DEVIATION: MA... more
A RANGE oriented in a given magnetic direction and used to assist in determination of the deviation of a MAGNETIC COMPASS. See DEVIATION: MAGNE­TIC.
4250
range: nominal
The LUMINOUS RANGE of a LIGHT in a homogenous ATMOSPHERE in which the METEOROLOGICAL VISIBILITY is 10 SEA MILES.
4251
range: small diurnal
The difference in HEIGHT between mean LOWER HIGH WATER and mean HIGHER LOW WATER.
4252
range: small tropic
The difference in HEIGHT between TROPIC LOWER HIGH WATER and TROPIC HIGHER LOW WATER.
4253
range finder
An optical instrument for measuring the distance to an object.
4254
range height indicator
A SCOPE which simultaneously indicates RANGE and HEIGHT of a RADAR TARGET.
4255
range light(s)
See LIGHT.
4256
range of mountains
See MOUNTAIN RANGE.
4257
range of tide
The dif­ference in HEIGHT between conse­cutive HIGH and LOW TIDES at a place. Also called tidal (or tide) range.
4258
range of visibility
The extreme distance at which an object or LIGHT can be seen. See RANGE: GEOGRAPHICAL, and RANGE: LUMINOUS.
4259
range rod
A simple SUR­VEYOR's rod, fitted with a sharp-pointed steel shoe. It is usually painted red and white alternately, and used to line up poin... more
A simple SUR­VEYOR's rod, fitted with a sharp-pointed steel shoe. It is usually painted red and white alternately, and used to line up points of a SURVEY.
4260
rapid(s)
Portions of a STREAM with accelerated CUR­RENT where it descends rapidly but without a break in the SLOPE of the BED sufficient to form a w... more
Portions of a STREAM with accelerated CUR­RENT where it descends rapidly but without a break in the SLOPE of the BED sufficient to form a waterfall. Usually used in the plural.