TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

CALM ZONE [10 records]

Record 1 2011-01-17

English

Subject field(s)
  • Magnetic and Electromagnetic Prospecting
  • Magnetism
DEF

Any area showing few or no magnetic anomalies.

OBS

magnetic quiet zone; MQZ; quiet magnetic zone; calm anomaly zone : terms and abbreviation used at Natural Resources Canada-Earth Sciences Sector.

French

Domaine(s)
  • Prospection magnétique et électromagnétique
  • Magnétisme
CONT

À l'approche des marges continentales stables [...] ce champ d'anomalies [magnétiques] fait souvent place à une zone beaucoup moins perturbée, [...] dite «zone d'anomalies tranquilles» ou «zone magnétiquement calme» (ZMC) où l'amplitude des anomalies magnétiques quand elles existent ne dépasse pas 40 à 100 gammas en moyenne.

OBS

zone magnétiquement calme; ZMC; zone de calme magnétique; zone d'anomalies tranquilles : termes et abréviation en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 1

Record 2 2009-01-14

English

Subject field(s)
  • Sea Operations (Military)
  • Radar, Radio Guidance and Goniometry
CONT

The anti-clutter sea control is often referred to as STC(Sensitivity Time Control) which decreases the amplification of the receiver immediately after a radar pulse is transmitted, and progressively increases the sensitivity as the range increases. A common mistake is to over adjust the A/C SEA control so that the surface clutter is completely removed. By rotating the control fully clockwise, you see how dangerous this can be; a dark zone is created near the center of the screen and close-in targets can be lost. This dark zone is even more dangerous if the gain has not been properly adjusted. Always leave a little surface clutter visible on the screen. If no surface clutter is observed(on very calm water), set the control at the fully counterclockwise position.

OBS

Turn clockwise to increase sea anti-clutter (STC, Sensitivity Time Control) effect, and counter-clockwise to decrease sea anti-clutter effect.

Key term(s)
  • anticlutter sea control
  • anti clutter sea control
  • sea anticlutter
  • sea anti clutter

French

Domaine(s)
  • Opérations en mer (Militaire)
  • Radar, radioguidage et radiogoniométrie
CONT

On peut avoir recours à l'anti-retour de pluie et à l'anti-retour de mer pour éliminer les faux échos. Il faut cependant être prudent en les utilisant, car on risque de masquer d'autres cibles proches si on place les commandes de ces dispositifs à un niveau trop élevé.

OBS

L'anti-retour de mer [sert] à régler le gain à courte distance.

OBS

anti-retour de mer : terme uniformisé par le Comité de normalisation de la terminologie navale.

Key term(s)
  • anti retour de mer
  • antiretour de mer

Spanish

Save record 2

Record 3 2004-10-01

English

Subject field(s)
  • Atmospheric Physics
DEF

Calm or light variable winds situated in the central zone of the subtropical anticyclones of the Northern or Southern Hemisphere between the trade-wind belt and the westerlies of middle latitudes.

OBS

subtropical calms: term rarely used in the singular (subtropical calm).

Key term(s)
  • sub-tropical calm
  • sub-tropical calms
  • sub tropical calms
  • sub tropical calm
  • subtropical calm

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Vents faibles et variables, ou calmes, dans la zone centrale des anticyclones subtropicaux des hémisphères Nord et Sud, entre la ceinture des alizés et la zone des vents d'ouest des latitudes moyennes.

OBS

calmes subtropicaux : terme inusité au singulier (calme subtropical).

Key term(s)
  • calme subtropical

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
DEF

Calmas o vientos flojos y variables situados en la zona central de los anticiclones subtropicales de cada hemisferio, entre los alisios y los contralisios de las latitudes medias.

Save record 3

Record 4 2002-07-16

English

Subject field(s)
  • Atmospheric Physics
  • Mathematical Geography
CONT

European sailors had been traveling across the Atlantic and around Africa for more than two centuries, and they recognized a general latitudinal pattern : light and variable winds, with daily thunderstorms, near the equator--the "doldrums"; prevailing easterly winds near the tropics--the "trade winds"; prevailing westerly winds in the mid-latitudes; and between the belts of easterlies and westerlies a zone of usually clear skies and calm air, the so-called "horse latitudes" where a ship could be stuck for weeks at a time in the calms of Cancer or Capricorn.

OBS

Horse latitudes ... The belt in the Northern Hemisphere is sometimes called the "calms of Cancer" and that in the Southern Hemisphere the "calms of Capricorn."

OBS

calms of Cancer: term rarely used in the singular (calm of Cancer).

Key term(s)
  • calm of Cancer

French

Domaine(s)
  • Physique de l'atmosphère
  • Géographie mathématique
DEF

Zone d'air calme située près du tropique du Cancer, au centre des zones subtropicales de haute pression (30 degrés nord).

OBS

calmes du cancer : terme inusité au singulier (calme du Cancer).

Key term(s)
  • calme du Cancer

Spanish

Save record 4

Record 5 2002-07-16

English

Subject field(s)
  • Atmospheric Physics
  • Mathematical Geography
CONT

European sailors had been traveling across the Atlantic and around Africa for more than two centuries, and they recognized a general latitudinal pattern : light and variable winds, with daily thunderstorms, near the equator--the "doldrums"; prevailing easterly winds near the tropics--the "trade winds"; prevailing westerly winds in the mid-latitudes; and between the belts of easterlies and westerlies a zone of usually clear skies and calm air, the so-called "horse latitudes" where a ship could be stuck for weeks at a time in the calms of Cancer or Capricorn.

OBS

Horse latitudes ... The belt in the Northern Hemisphere is sometimes called the "calms of Cancer" and that in the Southern Hemisphere the "calms of Capricorn."

OBS

calms of Capricorn: term rarely used in the singular (calm of Capricorn).

Key term(s)
  • calm of Capricorn

French

Domaine(s)
  • Physique de l'atmosphère
  • Géographie mathématique
DEF

Zone d'air calme située près du tropique du Capricorne au centre des zones subtropicales de haute pression (30 degrés sud).

OBS

calmes du Capricorne : terme inusité au singulier (calme du Capricorne).

Key term(s)
  • calme du Capricorne

Spanish

Save record 5

Record 6 2000-02-16

English

Subject field(s)
  • Hydrology and Hydrography
CONT

The sediment is dumped in a natural or artificial depression or in a calm, well-protected zone and then covered with a layer of clean material.

French

Domaine(s)
  • Hydrologie et hydrographie
CONT

Les sédiments déposés dans une dépression naturelle ou artificielle ou rejetés dans une zone calme et bien abritée sont recouverts d'une couche de matériaux propres.

Spanish

Save record 6

Record 7 1981-01-26

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Wastewater Treatment
  • Water Treatment (Water Supply)
CONT

The raw water inlet and the clarified water outlet must also be studied very carefully indeed to prevent the formation of stray current and to ensure that the raw water is distributed uniformly throughout the entire useful settling zone, while providing a calm zone in which the sludge may accumulate.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Traitement des eaux usées
  • Traitement des eaux
CONT

Il faut aussi que la répartition de l'eau brute et la collecte de l'eau décantée soient étudiées de très près pour éviter la formation de courants privilégiés et permettre à l'eau de se répartir uniformément dans tout le volume utile de décantation, tout en ménageant une zone calme pour le tassement des boues.

Spanish

Save record 7

Record 8 1981-01-26

English

Subject field(s)
  • Wastewater Treatment
CONT

In the case of simultaneous grease removal, a calm zone is provided at the sides. The air flow then also assists flotation of the light matter.

French

Domaine(s)
  • Traitement des eaux usées
CONT

Dans le cas de dégraissage simultané, une zone calme est aménagée latéralement. L'injection d'air contribue alors également à la flottation des matières légères.

Spanish

Save record 8

Record 9 1981-01-26

English

Subject field(s)
  • Wastewater Treatment
CONT

If grease must be removed, a calm collecting zone is profided round the inside edge of the tank. An overflow removes the floating matter.

French

Domaine(s)
  • Traitement des eaux usées
CONT

Si un dégraissage doit être prévu, une zone tranquille d'accumulation est aménagée à la périphérie. L'évacuation des matières flottantes est assurée par débordement [...]

Spanish

Save record 9

Record 10 1981-01-26

English

Subject field(s)
  • Equipment and Tools (Water Supply)
  • Wastewater Treatment
CONT

Oil and grease removal as a pre-treatment process at town sewage treatment plants.... For greater efficiency, a separate oil flotation unit is necessary; air is introduced at the bottom of the aeration zone, and clarification is ensured in a calm zone designed for an ascending velocity of 15 to 20 m/h(5 to 7 gal/[square foot] min) with a maximum speed of 25 m/h(8. 5 gal/[square foot] min).

French

Domaine(s)
  • Équipement et outillage (Alimentation en eau)
  • Traitement des eaux usées
CONT

Dégraissage-déshuilage en prétraitement de station d'épuration d'eaux résiduaires urbaines. [...] Une meilleure efficacité nécessite un dégraisseur-déshuileur séparé, avec insufflation d'air à la partie inférieure de la zone d'aération et sédimentation dans une zone tranquille calculée pour une vitesse ascensionnelle de 15 à 20 m/h, avec un maximum de 25 m/h.

Spanish

Save record 10

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