TERMIUM Plus®

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

CALM SEA [6 records]

Record 1 2023-02-23

English

Subject field(s)
  • Meteorology
  • Environment
CONT

... when the wind is nearly calm, sudden temperature changes can occur. In summer, the island can heat up by 5 [degrees Celsius] in one hour, causing light sea breezes of 5 knots. Cumulus clouds may then develop, but dissipate as they drift seaward.

French

Domaine(s)
  • Météorologie
  • Environnement

Spanish

Save record 1

Record 2 2011-05-30

English

Subject field(s)
  • Dams and Causeways
  • Ocean Energy
DEF

A system for harvesting the energy of waves (swell) in the shape of an on-shore barrier that retains and directs the water in a reservoir linked with a turbine for the production of electricity.

OBS

Energetech Australia is building a prototype electricity generator based on wave power on the breakwater at Port Kembla in New South Wales. A submerged chamber is open below the water level. When the waves rise up around the chamber, the water inside the chamber rises and falls with the waves. This compresses and decompresses air above the water in the chamber, creating airflow which drives a turbine. The turbines work with the air flowing in both directions. The blades change angle, depending on the speed and direction of the airflow … An ocean wall in the shape of a parabola concentrates the wave energy onto a central point where the power station is located … The amount of converted energy depends on the wind speed, the time the wind blows over the waves, and the distance it covers. During a wave's voyage, it shapes into a more regular wave, commonly referred to as a swell. At ocean shores, swells are very regular and discernable, even when the sea is calm.

Key term(s)
  • wave-energy breakwater
  • wave-power breakwater

French

Domaine(s)
  • Barrages et chaussées
  • Énergie océanique
CONT

Générateurs utilisant la houle […] La houle, dont l’origine se trouve dans les vents, représente un immense gisement d’énergie. Les puissances disponibles s’expriment par unité de longueur de front de vague et atteignent quelques 10 kW [kilowatts]/m. [Parmi les] principaux dispositifs exploitant l’énergie des vagues [on trouve les] barrages à houle situés sur les côtes; par déferlement, l’eau de mer remplit un réservoir et est ensuite turbinée. Ces systèmes présentent l’avantage de lisser la puissance et d’obtenir une production relativement régulière, en tout cas, qui ne fluctue pas au rythme des vagues, mais ils occupent de l’espace sur les côtes […]

Spanish

Save record 2

Record 3 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 3

Record 4 2007-04-26

English

Subject field(s)
  • Glaciology
DEF

A thin elastic crust of gray-colored ice formed on a calm sea, having a matte surface, and easily bent by waves and thrust into a pattern of interlocking "fingers"...

French

Domaine(s)
  • Glaciologie
CONT

Nilas est le terme anglais, français et russe pour désigner la couche de glace mince et élastique, ondulant facilement sous les vagues et la houle et formant sous la pression des avancées en forme de doigts entrecroisés.

Spanish

Campo(s) temático(s)
  • Glaciología
DEF

Costra de hielo delgada y elástica, que se dobla fácilmente por efecto de las olas de viento y mar de leva y bajo presión interponiéndose en un modelo de 'dedos' entrelazados.

Save record 4

Record 5 2002-03-15

English

Subject field(s)
  • Mine Warfare
  • Demolition (Military)
  • Minesweeping and Minehunting
DEF

In naval mine warfare, the shallowest depth of water in which a ship will not actuate a bottom mine of the type under consideration. Safe depth is usually quoted for conditions of ship upright, calm sea and a given speed.

OBS

safe depth: term and definition standardized by NATO.

OBS

safe depth: term extracted from the "Disarmament and Peace Keeping" glossary with the permission of the United Nations Office at Geneva.

French

Domaine(s)
  • Guerre des mines
  • Destruction (Militaire)
  • Dragage et chasse aux mines
DEF

En guerre des mines sur mer, profondeur d'eau minimum à partir de laquelle un bâtiment ne risque pas d'influencer une mine de fond de type donné. La profondeur de sécurité est généralement donnée pour un bâtiment droit, par mer calme et pour une vitesse donnée.

OBS

profondeur de sécurité : terme et définition normalisés par l'OTAN.

OBS

profondeur de sécurité : terme tiré du lexique «Désarmement et Maintien de la Paix» avec l'autorisation de l'Office des Nations Unies à Genève.

Spanish

Campo(s) temático(s)
  • Guerra de minas
  • Destrucción (Militar)
  • Dragado y detección de minas
DEF

En guerra naval de minas, profundidad mínima a la que un barco no puede accionar una mina de profundidad del tipo que se considera. La profundidad de seguridad se define para condiciones de barco vertical, mar en calma y velocidad determinada.

Save record 5

Record 6 1991-04-25

English

Subject field(s)
  • Meteorology

French

Domaine(s)
  • Météorologie
DEF

Embellie momentanée.

Spanish

Campo(s) temático(s)
  • Meteorología
Save record 6

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: