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Tidal datum
| Морской словарь |
Mean low-water level, taken as the reference point from which all other heights and depths are measured or predicted.
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Datum, немецкий
Datum, английский
- Начало [нуль] отсчета
- Исходное значение; начало отсчета; начальный уровень
- A position or element in relation to which others are determined.
- Данная величина; базовая линия
- A level surface or point to which other levels are related; a reference in measuring elevations.
- Точка отсчета
- The base level.
- (1) a material unit representing information about a portion of the real world that can be processed by explicit procedures and maintains its characteristics during repeated use. (2) a fact or figure transcribed in a readable language and on a durable medium (->channel). e.g., a completed questionaire, a taped interview, the recorded results of an experiment. events that leave no physical marks cannot be traced through data and physical marks that can no longer be interpreted, e.g., because the code linking them to particular observations is unavailable, loose the status of data. a datum rarely stands alone, hence the common use of its plural data. science typically processes large collections of data. in statistics each datum of a collection must contain the same kind of information.
Datum, английский
Datum, шведский
Datum , i, n, латинский
Datum dimension, английский
A dimension that exactly locates a reference point, reference line, or reference plane.
Datum level, английский
Datum level or datum plane, английский
The base or top of a range of fossils that can be correlated in sections over a wide area (see section 7.c.4).
Datum line, английский
- A line at the midpoint between the top and bottom of a lens, also referred to as the 180? line. unless otherwise specified, optical centers are ground on this line. “dbc” – distance between centers. “dbl” - distance between lenses – the closest distance between lenses. the figure is needed to compute decentration and is measured from the closest nasal point of one lens to the closest nasal point of the other lens. this measurement may be different that the marked bridge number on the frame.
- Базовая линия; база; ось координат
Datum mark, английский
Datum mark; checking point; check point; control point; control survey 35 point; datum point; fix, английский
Datum plane, английский
- A plane from which distances or dimensions are reckoned.
- Базовая плоскость
Datum point, английский
A point used as the basis for reckoning.
Datum water level, английский
Datuming, английский
Установка (рабочего органа станка) в исходное положение
Tidal, английский
Pertaining to, characterized by, or influenced by tides.
Tidal -, английский
Преобладающее движение автомобилей в одном направлении или по времени суток
Tidal air, английский
The amount of air that passes in and out of the body in breathing
Tidal atlas, английский
Атлас приливных течений
Tidal basin, английский
British term for a tidal harbor in which the water level is kept constant by a floodgate or tidal gate.
Tidal bore, английский
- Generated in estuaries and rivers with high tidal range and a sharp narrowing and shoaling at the entrance. manifested as a single wave, which may be breaking, that travels along the river or estuary and is followed by a rise in water level. see also bore.
- A phenomenon generated when the leading edge of a rising tide rides over the top of an outflowing river current and moves upstream in the form of a wave. this makes it a true tidal wave (not to be confused with tsunami). these phenomena are relatively rare, occurring only in a few locations where large incoming tides are funneled into a shallow narrowing river via a broad bay. the biggest in north america occurs in the otherwise lazy shubenacadie river, off the bay of fundy where the tidal range is about 12 meters (40 feet). the shubenacadie bore races upstream at a speed as high as 50 km/h (30 mph) and can rise to a height of 5 meters (16 feet) but is usually less. it has claimed the lives of several tourists who were in the riverbed when it came in. the word derives from old norse bara, meaning wave or swell. (also eagre.)
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Tidal day, английский
One complete tidal cycle.
Tidal cycle, английский
As the water moves away from the shore and gets shallower, the tide is said to be going out, ebbing, or on the ebb. the moment at which the current begins to reverse direction and has no motion is known as turn of the tide or slack water. and as it comes back towards the shore the tide is coming in, rising, or on the rise.
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