Term Terme français Definition Définition française
survey: wire-drag
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A HYDRO­GRAPHIC SURVEY made utilizing a WIRE DRAG. In areas of rocky BOTTOM or where submer­ged obstacles such as WRECKS are present, a wire... more
A HYDRO­GRAPHIC SURVEY made utilizing a WIRE DRAG. In areas of rocky BOTTOM or where submer­ged obstacles such as WRECKS are present, a wire-drag survey represents the most practical way of making sure that all OBSTRUCTIONS or dangers have been found and least DEPTHS over them obtained. Also called wire drag sweep.
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survey buoy
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See BUOY.
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survey boat
Vedette hydrographique
A boat used for hydrographic surveys.
Vedettefhydrographique. VEDETTE utilisée pour les LEVÉS HYDROGRAPHIQUES, aménagée en conséquence.
surveying
Hydrographie
Specifically, the science or art of making such measure­ments as are necessary to determine the RELATIVE POSITION of points above, on, or be... more
Specifically, the science or art of making such measure­ments as are necessary to determine the RELATIVE POSITION of points above, on, or beneath the surface of the EARTH, or to establish such points. Generally, the art of making a SURVEY.
Hydrographie.fb)Dans un sens plus restreint, LEVÉ HYDROGRAPHIQUE.c) Ensemble des cours d’eau et des lacs d’une région.
surveying: plane
Levé plan
A branch of the art of SURVEYING in which the surface of the EARTH is considered a plane surface. In plane surveying, curvature of the EARTH... more
A branch of the art of SURVEYING in which the surface of the EARTH is considered a plane surface. In plane surveying, curvature of the EARTH is neglected, and computations are made using the formu­lae of plane geometry and plane trigonome­try.
Levémplan. LEVÉ portant sur une zone de faible étendue et dans lequel on ne tient pas compte de la courbure de la surface terrestre, consid... more
Levémplan. LEVÉ portant sur une zone de faible étendue et dans lequel on ne tient pas compte de la courbure de la surface terrestre, considérée comme plane. Par exemple LEVÉ À LA PLANCHETTE.
surveying (or mapping) camera
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See CAMERA.
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surveying sextant
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See SEXTANT: SOUNDING.
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survey mark
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An object placed at the site of a station to identify the surveyed location of that station. In particular, an object whose coordinates are ... more
An object placed at the site of a station to identify the surveyed location of that station. In particular, an object whose coordinates are used for control in a geodetic network. Also called MARKER, geodetic marker, and MONUMENT.
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survey net
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See LEVEL NET, TRIANGULATION NET.
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surveyor
Hydrographe
A person engaged in SURVEYING.
Hydrographe.ma)Personne spécialisée dans l'étude et la pratique de l'HYDROGRAPHIE.
surveyor's compass
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See COMPASS.
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survey sheet
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See HYDROGRA­PHIC SURVEY SHEET.
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survey (or surveying) ship (or vessel)
Navire océanographique
A vessel or platform (e.g. aircraft) specially equipped for carrying out TOPOGRAPHIC, HYDROGRAPHIC and/or OCEANOGRAPHIC SURVEY.
Naviremocéanographique.NAVIRE spécialement équipé pour effectuer des LEVÉS OCÉANOGRAPHIQUES. Le terme ancien “navire océanographe” est à rej... more
Naviremocéanographique.NAVIRE spécialement équipé pour effectuer des LEVÉS OCÉANOGRAPHIQUES. Le terme ancien “navire océanographe” est à rejeter. On dit aussibâtiment océanographique.
survey signal
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See SIGNAL.
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survey station
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See STATION.
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survey traverse
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See TRAVERSE.
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Swallow float
Flotteur de Swallow
A tubular BUOY, usually made of alumi­nium, that can be adjusted to remain at a selected density level to drift with the motion of that wate... more
A tubular BUOY, usually made of alumi­nium, that can be adjusted to remain at a selected density level to drift with the motion of that water mass. The FLOAT is tracked by shipboard listen­ing devices and current velocities can be determined.
Flotteurmde Swallow. FLOTTEUR de forme tubulaire, qui peut être réglé pour rester à une immersion donnée, correspondant à une eau d'une cer... more
Flotteurmde Swallow. FLOTTEUR de forme tubulaire, qui peut être réglé pour rester à une immersion donnée, correspondant à une eau d'une certaine densité. Son mouvement peut être suivi par des dispositifs installés à bord d'un navire, et permet de déterminer les valeurs du courant.
swamp
Marais
An area of spongy land saturated with water. It may have a shallow covering of water, usually with a considerable amount of vegetation appea... more
An area of spongy land saturated with water. It may have a shallow covering of water, usually with a considerable amount of vegetation appearing above the surface.
Marais.m TERRAIN recouvert d’eau stagnante peu profonde, largement envahi de végétation aquatique.
swash
Barre
A narrow CHANNEL or SOUND within a sand bank, or between a sand bank and the SHORE. Also calledswash­way. A BAR over which the SEA washes. T... more
A narrow CHANNEL or SOUND within a sand bank, or between a sand bank and the SHORE. Also calledswash­way. A BAR over which the SEA washes. The rush of water up onto a BEACH following the brea­king of a WAVE.
Barre.fb) BANC ou HAUT-FOND de forme allongée sur lequel les vagues peuvent déferler.
swash channel
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A CHANNEL across a BANK, or among SHOA­LS.
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