TERMIUM Plus®

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

HIGH PRESSURE AREA [37 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2023-06-02

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A weather phenomenon in which an area experiences stifling heat when a system of high pressure pushes very warm air downward and keeps it trapped as if in a bubble.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
CONT

L'expression «dôme de chaleur» est [...] utilisée pour décrire un couvercle qui se forme sur certaines régions lorsqu'un système de haute pression plane dans l'atmosphère, empêchant l'air chaud de s'échapper et le retenant, du même coup, à la surface de la Terre.

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
CONT

La causa de esta ola es una gran área de alta presión, conocida como "cúpula de calor", que ha desviado temporalmente el flujo típico de la corriente en chorro y ha permitido que el aire caliente de África suba al norte.

Save record 1

Record 2 2022-04-13

English

Subject field(s)
  • Atmospheric Physics
CONT

Rex blocks consist of a high situated to the north of a low. Very often both the high and the low are closed, meaning that the isobars (or constant geopotential height lines) defining the high/low close to form a circle. Rex blocks [are] named after the meteorologist who first identified them.

OBS

A "Rex block" is a type of weather pattern where a large ridge of high pressure dominates the area and blocks any significant weather from intruding. They are calling it "dreaded" because these kind of blocks often bring cold temperatures and no new snow for a long time.

OBS

Rex block: designation officially approved by the Avalanche Bulletin Terminology Standardization Committee.

French

Domaine(s)
  • Physique de l'atmosphère
CONT

Un bloc Rex consiste en un [système] en altitude où on trouve un anticyclone au nord d'une dépression. En général, les deux systèmes auront des circulations fermées. Les systèmes de surface seront capturés par la dépression d'altitude ou devront suivre le [système] en S inversé autour de celle-ci[,] ce qui veut dire qu'il sera difficile de déloger le bloc Rex.

OBS

bloc Rex; bloc de Rex : désignations uniformisées par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

Spanish

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

[…] patrón atmosférico con el que se alude a una pareja de altas presiones al norte y bajas presiones al sur.

OBS

bloqueo rex; bloqueo en rombo: La Fundación del Español Urgente (Fundéu BBVA), con el asesoramiento de la Real Academia Española, indica que la construcción "bloqueo rex" [...] se escribe con minúsculas y sin resalte. [...] la Ortografía de la lengua española [recomienda que] los nombres genéricos de fenómenos atmosféricos se escriben con minúsculas [...]

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Record 3 2021-07-15

English

Subject field(s)
  • Hydrology and Hydrography
  • Petrography
CONT

Rocky shores... are characterized by the life that lives in the intertidal zone – the area between the high tide and low tide water levels. Life on rocky shores is tough. It is dominated by the need to deal with very high wave energy, regular exposure to the air/sun, and interactions between these two physical stressors and the strong biological pressure applied by voracious intertidal predators.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Pétrographie

Spanish

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Record 4 2021-06-23

English

Subject field(s)
  • Military Logistics
CONT

Other major facilities within the area completed... included the [central instrumentation facility(CIF) ], the central supply facility, the engineering development laboratory, two spacecraft assembly/encapsulation facilities, the high pressure gas storage facility, the fluid test complex, and the parachute refurbishment facility.

OBS

central supply facility; CSF: designations standardized by NATO.

French

Domaine(s)
  • Logistique militaire
OBS

installation centrale de soutien; CSF : désignations normalisées par l'OTAN.

Spanish

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Record 5 2018-10-23

English

Subject field(s)
  • Aerodynamics and Theory of Gases
  • Aircraft Piloting and Navigation
DEF

A circular pattern of air current created by the movement of an airfoil through the air when the airfoil is generating lift.

OBS

As an airfoil moves through the atmosphere in sustained flight, an area of high pressure is created beneath it and an area of low pressure is created above it. The air flowing from the high-pressure area to the low-pressure area around and about the tips of the airfoil tends to roll up into two rapidly rotating vortices, cylindrical in shape. These vortices are the predominant parts of aircraft wake turbulence and their rotational force is dependent upon the wing loading, gross weight, and speed of the generating aircraft. The vortices from medium to heavy aircraft can be of extremely high velocity and hazardous to smaller aircraft.

OBS

wing-tip vortex: term and definition standardized by the Glossary for Pilots and Air Traffic Services Personnel Committee.

OBS

vortex: The plural forms are "vortexes" and "vortices."

Key term(s)
  • wing-tip vortexes
  • wing-tip vortices
  • wingtip vortexes
  • wingtip vortices

French

Domaine(s)
  • Théorie des gaz et aérodynamique
  • Pilotage et navigation aérienne
DEF

Courant d'air circulaire créé par le déplacement d'un profil générateur de portance.

OBS

Lorsqu'un tel profil est déplacé de façon continue dans l'atmosphère, une zone de haute pression se crée à l'intrados et une autre de basse pression se crée sur l'extrados. L'air qui circule autour des ailes, de la zone de haute pression vers celle de basse pression, a tendance à former deux tourbillons cylindriques en rotation rapide. Ces tourbillons produisent la majeure partie de la turbulence de sillage d'un aéronef. La force de rotation de ces tourbillons dépend de la charge alaire, de la masse brute et de la vitesse de l'aéronef. Les tourbillons provoqués par les aéronefs moyens et lourds peuvent être caractérisés par de très grandes vitesses et mettre en danger les aéronefs plus petits.

OBS

tourbillon en bout d'aile; tourbillon d'extrémité d'aile : termes et définition normalisés par le Comité sur le Glossaire à l'intention des pilotes et du personnel des services de la circulation aérienne.

Spanish

Campo(s) temático(s)
  • Aerodinámica y teoría de los gases
  • Pilotaje y navegación aérea
Save record 5

Record 6 2016-12-07

English

Subject field(s)
  • Fire-Fighting and Rescue Equipment
  • Extinguishing Agents
DEF

Device in which the foam compound is added to the water and which can be fitted at any point in the delivery hose.

DEF

Equipment designed to induce foam concentrate into a water stream, usually positioned between the pump and the branch pipe. [Definition standardized by ISO.]

CONT

in-line inductor: This type of proportioner educts or drafts foam concentrate from a container or tank by venturi action, utilizing the operating pressure of the hose water stream on which it is installed, injecting concentrate into that flow of water.

CONT

There are three different types of foam proportioners commonly used in the fire service : line eductors, balanced pressure proportioners, and around-the-pump proportioners. The line eductor is the simplest and least expensive proportioning device. It has no moving parts in the water way, which makes it durable and dependable. The line eductor may be attached to the hoseline or may be part of the nozzle. There are two different types of line eductors : the in-line eductor and the self-educting nozzle. Both types of eductors use the venturi principle to draft foam concentrate into the water stream. As water at high pressure passes over a reduced opening, it creates a low-pressure area near the outlet side of the eductor. This low-pressure area creates a suction effect. The eductor pickup tube is connected to the eductor at this low-pressure point. The pickup tube submerged in the foam concentrate draws concentrate into the water stream, creating a foam water solution.

OBS

foam inductor: A piece of equipment that introduces the proper quantity of foaming agent into a water stream.

OBS

in-line: Referring to a device or fitting inserted in series with (or parallel to the flow in) a hose line.

OBS

in-line foam concentrate inducer: term standardized by ISO.

Key term(s)
  • inline eductor
  • inline foam eductor
  • inline proportioner
  • inline foam proportioner
  • inline foam inductor

French

Domaine(s)
  • Matériel de secours et de lutte (incendies)
  • Agents extincteurs
DEF

Appareil intercalé dans l'établissement des tuyaux de refoulement, dans lequel s'opère le mélange du produit émulsifiant et de l'eau d'extinction.

DEF

Équipement conçu pour injecter l'émulseur dans l'eau, généralement placé entre la pompe et l'applicateur. [Définition normalisée par l'ISO.]

OBS

injecteur d'émulseur en ligne : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Equipo de salvamento y lucha contra incendios
  • Agentes extintores
Save record 6

Record 7 2014-04-11

English

Subject field(s)
  • Plastics Manufacturing
DEF

Dimensional distortion of a plastic object after moulding or other fabrication.

CONT

A serious problem encountered with complex-shaped injection-molded parts is warpage... Possible causes for warpage include overpacking in the gate area because of high injection pressure, improperly balanced core and cavity temperatures, molded-in strains caused by low stock temperature or the mold being too cold, too long a flow, insufficient gates, improper design, nonuniform walls, improperly balanced multiple gates, the part being ejected when it is too hot, or inadequate or poor location of the knockout mechanism.

OBS

warpage; warping: terms and definition standardized by ISO [International Organization for Standardization].

French

Domaine(s)
  • Plasturgie
DEF

Distorsion dimensionnelle d'un objet en plastique après moulage ou une autre opération.

OBS

gauchissement; gauche : termes et définition normalisés par l'ISO [Organisation internationale de normalisation].

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
DEF

Distorsión dimensional de un objeto plástico después del moldeo o de otra operación.

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Record 8 2011-09-01

English

Subject field(s)
  • Atmospheric Physics
DEF

A fast-moving ridge between two depressions or troughs.

OBS

In synoptic meteorology, the term "wedge" is mainly applied to a relatively fast-moving ridge on a surface synoptic chart.

OBS

[Wedge. Term synonymous with ridge]. ridge : An elongated area of relatively high atmospheric pressure, almost always associated with and most clearly identified as an area of maximum anticyclonic curvature of wind flow.

Key term(s)
  • wedge of high-pressure
  • high pressure wedge
  • high-pressure wedge

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Crête barométrique se déplaçant rapidement entre deux dépressions ou creux.

OBS

Sur la carte isobarique, crête de haute pression.

Spanish

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

Cresta de altas presiones que, en un mapa isobárico, aparece como el apéndice de un anticiclón, cuando penetra en una zona de bajas presiones.

OBS

Sinónimo de dorsal, pero con frecuencia se aplica a una dorsal que se mueve con rapidez, flanqueada por dos depresiones o vaguadas.

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Record 9 2011-08-31

English

Subject field(s)
  • Atmospheric Physics
DEF

An area of high pressure forming over Siberia in winter that is a feature of the winter sea-level mean pressure distribution.

OBS

For example, it is represented in a January mean pressure chart by a centre over east Central Eurasia, with central pressure over 1036 mb.

Key term(s)
  • Siberian anti-cyclone

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Aire de haute pression qui se forme au-dessus de la Sibérie en hiver, et qui apparaît sur les cartes de pression moyenne au niveau de la mer.

OBS

Son centre est au lac Baïkal où la pression moyenne au niveau de la mer dépasse 103 kPa (1030 mba) de la fin de novembre au début mars.

Spanish

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

Región en la que predominan ampliamente las altas presiones durante una gran parte del año y en la que aparece un anticiclón en los mapas de la media mensual de la presión.

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Record 10 2011-05-24

English

Subject field(s)
  • Heating
DEF

A tank placed above the boiler of a hot-water system, to allow for the increased volume of water when heated.

CONT

All hot-water heating systems must be provided with an expansion tank of either the open or closed type.

CONT

The expansion tank (also called a compression tank) allows for the expansion of the water in the system as it is heated. It is located above the boiler.

CONT

The compression tank differs from the expansion tank of the obsolete gravity systems in this characteristic of maintaining system pressure. The compression tank is open only to the system water, whereas the gravity expansion tank was open to atmosphere as well as to the system, and consequently had to be located higher than the highest radiator. The compression tank may be located anywhere, although tank size decreases with increasing height above the boiler. In large systems economy may indicate a high position, rather than in the usual boiler-room area.

OBS

Also used in the Heat Transfer Module with heating liquid called Dupont Telar which is a mixture of ethylene glycol with a corrosion inhibitor and distilled water.

French

Domaine(s)
  • Chauffage
DEF

Récipient, en communication ou non avec l'atmosphère, permettant à une installation de chauffage de liquide d'absorber les changements de volume liés aux changements de température. (Ce système est surtout utilisé en chauffage central.)

DEF

Réservoir relié à un système de chauffage à eau chaude et permettant les dilatations de l'eau, sans changement trop important de niveau.

Spanish

Campo(s) temático(s)
  • Calefacción
Save record 10

Record 11 2010-06-10

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

This system... makes use of engine H. P. [high pressure] compressor bleed air which is ducted to shutter valves located at the extremities of the aircraft. These R. C. V. ’S [reaction control valves] are simple convergent nozzles closed by a swinging shutter which varies the exit area.

French

Domaine(s)
  • Propulsion des aéronefs
CONT

La sustentation est assurée par des trompes linéaires alimentées par quatre réacteurs [...] Le contrôle est assuré par quatre buses d'éjection alimentées par prélèvement d'air aux compresseurs des réacteurs; il reste assuré même en cas de panne de deux réacteurs symétriques [...]

CONT

Les gouvernes aérodynamiques n'ayant aucune efficacité à faible vitesse, on utilise de l'air comprimé prélevé sur le réacteur pour alimenter les buses de contrôle situées aux extrémités de l'appareil. Ces buses à débit variable sont connectées aux commandes de vol.

Spanish

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Record 12 2009-11-10

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
  • Nuclear Science and Technology
CONT

In the homogeneous equilibrium model (HEM) one assumes that the velocity, temperature and pressure between the phases or components are equal.

OBS

This assumption is based on the belief that differences in these three potential variables(and chemical potential if chemical reactions are considered) will promote momentum, energy, and mass transfer between the phases rapidly enough so that equilibrium is reached. For example, when one phase is finely dispersed in another phase generating large interfacial area, under certain circumstances this assumption can be made; e. g., bubbly flow of air in water or steam in water at high pressures. The resulting equations resemble those for a pseudo-fluid with mixture properties and an equation of state which links the phases to obtain these mixture thermodynamic properties. Whenever the HEM model is used it is advisable to check the validity of the equilibrium assumptions by using more accurate theoretical models for comparison. For example, rapid acceleration or pressure changes cannot be always accurately modelled with the HEM model; i. e., discharge of flashing vapor-liquid mixtures, or shock wave propagation through a multiphase medium. This is especially true when the pressure change is large when compared to the ambient pressure, or any of the driving potentials are large relative to their reference values.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
  • Sciences et techniques nucléaires
CONT

Les écoulements à direction privilégiée peuvent soit être considérés comme monodimensionnels, soit conduire à des équations simplifiées en ne considérant que les termes prédominants. Le modèle le plus simple revient à homogénéiser les deux phases en considérant un fluide dont les propriétés physiques sont déterminées par le taux de présence des deux phases. En écoulement à direction privilégiée (vertical ascendant), les deux phases étant en équilibre thermodynamique et mécanique, le modèle homogène à l'équilibre (HEM) se révèle satisfaisant et particulièrement utile. À partir de ce modèle, on peut introduire des effets de glissement ou de déséquilibre thermique (apparition de vapeur lorsque le fluide n'est pas encore à saturation).

Spanish

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Record 13 2007-10-02

English

Subject field(s)
  • Fluid Mechanics and Hydraulics (Physics)
DEF

A device in which kinetic energy, or energy of motion, of one fluid is used to pump another fluid.

DEF

A device which builds up a high fluid velocity in a restricted area to obtain a lower static pressure at that point so that fluid from another source may be drawn in.

French

Domaine(s)
  • Mécanique des fluides et hydraulique (Physique)
DEF

Appareil produisant l'évacuation d'un fluide au moyen d'une autre masse fluide animée d'une certaine vitesse [...]

Spanish

Campo(s) temático(s)
  • Mecánica de fluidos e hidráulica (Física)
DEF

Dispositivo en el cual un chorro fluido sirve para arrastrar otro fluido.

CONT

El eyector consta esencialmente de una tobera convergente con su boquilla dispuesta de manera que el chorro que por ella sale, pase por una cámara donde se halla en contacto con el fluido que se ha de arrastrar, antes de penetrar en otra tobera divergente.

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Record 14 2007-07-23

English

Subject field(s)
  • Atmospheric Physics
CONT

The name sounds romantic and oddly soothing: meltemi. But the reality is that this dry wind blowing from the north can sweep across Greek waters, swamping small craft, challenging ferries, and shutting down hydrofoils. It also can churn the waters, making them dangerous for swimmers, and blow sand at sunbathers on north-facing beaches.

CONT

We are on Aegean cost of Turkey and we profit from these exceptional weather conditions; like 6 months of blue sky, warm sun, a climate without dampness and the good wind called Meltemi.

CONT

The Meltemi wind was known by the old Greeks as the Etesian northern winds, and results from a high pressure system(>1025) lying over the Balkan/Hungary area and a relatively low pressure(<1010) system over Turkey.

OBS

The old name of the Meltemia was the Etesian winds. Mythologically, they are under the control of Boreas, the god of the North Winds.

OBS

The Etesian or Meltemi (Turkish name) is an extension of a monsoon. It is strongest in the afternoon and weakens during the night.

OBS

etesian wind: Prevailing northerly wind in summer in the eastern Mediterranean and the Aegean Sea.

OBS

In Greece the etesian wind is locally named the sleeper. In Turkey it is the meltém.

Key term(s)
  • etesians
  • etesian winds
  • meltemi winds
  • meltém wind
  • meltém winds
  • etesian northern winds
  • etesian

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Vent d'été du Nord est qui souffle les après-midi sur la mer Égée.

CONT

Autre avantage de se rendre dans la région les mois d'avril, de mai, de septembre et d'octobre : le Meltemi, vent dominant de secteur nord en mer Égée, n'a pas encore atteint toute sa puissance.

OBS

Melteme ou meltemi ou meltemia [Ce] vent [...] est appelé Étésien en Grèce.

OBS

Ce vent imprévisible et fougueux est si caractériel que les grecs lui ont préféré le nom de Meltem (venu de Turquie) à celui d'«Étésien».

OBS

vent étésien : Vent dominant du nord, en été, sur la Méditerranée orientale et la mer Égée.

Key term(s)
  • étésiens
  • vents étésiens
  • vent meltem
  • vents meltemi
  • vents meltem

Spanish

Save record 14

Record 15 2007-01-30

English

Subject field(s)
  • Atmospheric Physics
CONT

Channelled Winds. The topography can also change the direction of the winds by forcing the flow along the direction of a pass or valley.

CONT

The westerly wind is a channelled wind through Skidegate Inlet. Sandspit Airport will frequently show strong, gusty westerly winds behind a front that will last for several hours, then begin to diminish. These westerly winds will, however, persist until the high pressure ridge that is following the frontal system moves across the area.

French

Domaine(s)
  • Physique de l'atmosphère
CONT

La topographie peut aussi changer la direction du vent en le forçant à suivre un col montagneux ou une vallée. Une situation de ce genre s'appelle un effet de canal et les vents ainsi produits sont des vents canalisés.

OBS

Ne pas confondre «vent canalisé» et «vent de couloir». Ce sont deux types de vents différents, bien que le «vent de couloir» soit aussi canalisé. Un «vent canalisé» signifie tout simplement que le vent est dévié le long d'une vallée, couloir, gorge, etc., mais sans référence à la vélocité. Le vents souffle parallèlement à la vallée, c'est tout. Il peut aussi bien souffler vers une zone de haute pression qu'une zone de basse pression. Alors que les «vents de couloir» soufflent toujours de la haute pression vers la basse pression. [Commentaire d'une météorologue d'Environnement Canada.]

Spanish

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Record 16 2006-11-29

English

Subject field(s)
  • Atmospheric Physics
DEF

The boundary between a cold air mass that is advancing and a relatively warmer air mass.

CONT

A cold front occurs when a cold air mass moves into an area occupied by a warmer air mass. Moving at an average speed of about 20 mph, the heavier cold air moves in a wedge shape along the ground. Cold fronts bring lower temperatures and can create narrow bands of violent thunderstorms. In North America, cold fronts form on the eastern edges of high pressure systems.

CONT

A cold front will cross the region this evening. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.]

OBS

[A cold front is] generally characterized by steady precipitation followed by showery precipitation.

OBS

cold front: term officially approved by the Avalanche Bulletin Terminology Standardization Committee.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Front non occlus se mouvant de façon telle que la masse d'air froid succède à la masse d'air chaud.

CONT

On parle de front chaud lorsque, dans le sens de son déplacement, l'air chaud se substitue à l'air froid; au contraire, on se trouve en présence d'un front froid si l'air froid succède à l'air chaud.

CONT

Un front froid traversera la région cette nuit. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.]

OBS

front froid : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.

Spanish

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

Cualquier frente no ocluido que al avanzar hace que el aire frío remplace al aire caliente.

CONT

Cuando una superficie frontal se desplaza de tal manera que es el aire frío el que desplaza al aire caliente,en superficie, se dice que estamos en presencia de un frente frío.

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Record 17 2005-07-25

English

Subject field(s)
  • Atmospheric Physics
DEF

Area of high atmospheric pressure which remains over a continent during the cold season.

OBS

The only really pronounced example of this is the Siberian high.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Région de haute pression qui demeure au-dessus d'un continent pendant la saison froide.

OBS

anticyclone continental : Il est causé principalement par le refroidissement prolongé de la surface terrestre et par les basses températures résultantes dans les basses couches de l'atmosphère.

Spanish

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

Zona de alta presión atmosférica que permanece sobre un continente durante la estación fría.

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Record 18 2005-02-28

English

Subject field(s)
  • Atmospheric Physics
DEF

A semi-permanent, subtropical area of high pressure in the North Atlantic Ocean that migrates east and west with varying central pressure.

OBS

Depending on the season, it has different names. In the Northern Hemispheric winter and early spring, when the Icelandic Low dominates the North Atlantic, it is primarily centered near the Azores Islands. When it is displaced westward, during the summer and fall, the center is located in the western North Atlantic, near Bermuda and is known as the Bermuda High. A comparable system is the North Pacific High.

OBS

semi-permanent anticyclone: Region where high pressures largely predominate during a major portion of the year and for which an anticyclone appears on the mean monthly pressure charts.

Key term(s)
  • Azores anti-cyclone

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Centre subtropical et semi-permanent de haute pression situé au-dessus de l'océan Atlantique Nord.

OBS

Sur les cartes moyennes, elle correspond à la présence fréquente de dépressions dans cette région.

OBS

anticyclone semi-permanent : Région où des hautes pressions prédominent largement durant une partie importante de l'année et où apparaît un anticyclone sur les cartes décrivant la moyenne mensuelle de la pression.

Key term(s)
  • maximum des Açores

Spanish

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

anticiclón semipermanente: Región en la que predominan ampliamente las altas presiones durante una gran parte del año y en la que aparece un anticiclón en los mapas de la media mensual de la presión.

Save record 18

Record 19 2004-10-01

English

Subject field(s)
  • Atmospheric Physics
DEF

Term sometimes applied to the trade winds when they are shallow and show pronounced vertical wind shear.

CONT

A high pressure area over Antarctica--associated with extremely cold and dense air is ringed by easterly winds which form the boundary with the subpolar low pressure belt. These typical features vary in intensity and location according to the season. For instance, in summer the high pressure belt is usually found just south of Australia, while the subtropical easterlies cover most of the continent.

OBS

subtropical easterlies: term rarely used in the singular (subtropical easterly).

Key term(s)
  • subtropical easterly
  • sub-tropical easterlies
  • sub-tropical easterly

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Terme parfois appliqué aux alizés de faible épaisseur et présentant un fort cisaillement vertical du vent.

OBS

vents d'est subtropicaux : terme inusité au singulier (vent d'est subtropical).

Key term(s)
  • vent d'est subtropical

Spanish

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

Término aplicado, a veces, a los alisios cuando son poco profundos y poseen una fuerte cizalladura vertical del viento.

Key term(s)
  • viento subtropical del este
Save record 19

Record 20 2004-06-11

English

Subject field(s)
  • Missiles and Rockets
CONT

In applying the principles of electrostrictive hydrodynamics(electrohydrodynamics) it is immediately clear to the aeronautical engineer that a large electrode area is required. Just as a sailboat uses a sail, any vehicle utilizing electrohydrodynamic propulsion must employ a large ballistic electrode to integrate the pressure of plasma "winds" to provide lift or forward thrust. These so-called "electric winds" are ion flows, moving at relatively high velocity. The flows may take various patterns determined by 1) The manner in which the flows are generated, and 2) The curvature of the surfaces which confine them.

French

Domaine(s)
  • Missiles et roquettes

Spanish

Save record 20

Record 21 2004-06-07

English

Subject field(s)
  • Atmospheric Physics
DEF

An onshore wind at the lake shore that results due to differences in heating during the day.

CONT

The land warms quicker than the water, so an area of low pressure forms. The water remains cool, where high pressure develops. The resulting wind flow from high to low pressure create the lake breezes. Similar to a sea breeze.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Vent semblable à la brise de mer, mais généralement plus faible, soufflant de la surface d'un grand lac vers les rives durant l'après-midi.

Spanish

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

Viento de las regiones costeras que sopla durante el día desde una extensión grande de agua (mar o lago) hacia tierra debido al calentamiento diurno del suelo.

Save record 21

Record 22 2004-06-07

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A semi-permanent, subpolar area of low pressure in the North Atlantic Ocean.

CONT

Icelandic low :... Because of its broad area and range of central pressure, it is an area where migratory lows tend to slow down and deepen. It is strongest during a Northern Hemisphere winter and early spring, centered over Iceland and southern Greenland, and is the dominate weather feature in the area. During the summer, it is weaker, less intense, and might divide into two parts, one west of Iceland, the other over the Davis Strait between Greenland and Baffin Island. Then the Azores or Bermuda High becomes the dominate weather feature in the North Atlantic.

Key term(s)
  • Icelandic low-pressure area

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Aire de dépression située près de l'Islande, de fait entre l'Islande et le Groenland du Sud sur les cartes de pression atmosphérique moyenne au niveau de la mer.

Key term(s)
  • zone de basses pressions de l'Islande

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
Save record 22

Record 23 2004-05-21

English

Subject field(s)
  • Atmospheric Physics
DEF

Line (imaginary) in a ridge along which the anticyclonic curvature of the isobars or contours is a maximum.

CONT

An area of high pressure is known as a "ridge. "And a ridge axis is an imaginary line through the middle of the high pressure ridge.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Dans une crête de haute pression, ligne (imaginaire) le long de laquelle la courbure anticyclonique des isobares ou isohypses à chaque niveau est maximale.

Spanish

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

Línea (imaginaria), a lo largo de una dorsal, en que es máxima la curvatura anticiclónica de las isobaras o de las isohipsas.

Save record 23

Record 24 2004-01-27

English

Subject field(s)
  • Spacecraft
CONT

A rocket engine is a device in which propellants are burned in a combustion chamber and the resulting high pressure gases are expanded through a specially shaped nozzle to produce thrust. The function of the nozzle is to convert the chemical-thermal energy generated in the combustion chamber into kinetic energy. The nozzle converts the slow moving, high pressure, high temperature gas in the combustion chamber into high velocity gas of lower pressure and temperature. Gas velocities from 2 to 4. 5 kilometers per second can be obtained in rocket nozzles. The nozzles which perform this feat are called DeLaval nozzles(after the inventor) and consist of a convergent and divergent section. The minimum flow area between the convergent and divergent section is called the nozzle throat. The flow area at the end of the divergent section is called the nozzle exit area.

French

Domaine(s)
  • Engins spatiaux
DEF

Partie d'une tuyère de section croissante, en aval du col, où se produit la détente du gaz.

OBS

Dans le divergent d'une tuyère à blocage sonique, la vitesse du gaz croît au-delà de la vitesse du son au col.

PHR

Partie supérieure du divergent.

Spanish

Save record 24

Record 25 2002-04-09

English

Subject field(s)
  • Atmospheric, Climatic and Meteorological Phenomena
DEF

A semi-permanent, subpolar area of low pressure located in the Gulf of Alaska near the Aleutian Islands.

CONT

Aleutian low. Its presence on mean pressure charts arises from the frequent appearance of depressions in this region.

OBS

It is a generating area for storms and migratory lows often reach maximum intensity in this area. It is most active during the late fall to late spring. During the summer, it is weaker, retreating towards the North Pole and becoming almost nonexistent. During this time, the North Pacific High pressure system dominates.

French

Domaine(s)
  • Phénomènes météorologiques, climatiques et atmosphériques
DEF

Dépression semi-permanente de la région nommée.

CONT

Une des conséquences du fort épisode El Niño de 1997 - 1998 a été le creusement de la dépression des Aléoutiennes, vaste zone de basse pression semi-permanente sur le nord-est de l'océan Pacifique.

OBS

dépression des Aléoutes; dépression des Aléoutiennes : Sur les cartes moyennes, elle correspond à la présence fréquente de dépressions dans cette région.

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
Save record 25

Record 26 2002-03-08

English

Subject field(s)
  • Fire-Fighting and Rescue Equipment
  • Extinguishing Agents
CONT

There are three different types of foam proportioners commonly used in the fire service : line eductors, balanced pressure proportioners, and around-the-pump proportioners. The line eductor is the simplest and least expensive proportioning device. It has no moving parts in the water way, which makes it durable and dependable. The line eductor may be attached to the hoseline or may be part of the nozzle. There are two different types of line eductors : the in-line eductor and the self-educting nozzle. Both types of eductors use the venturi principle to draft foam concentrate into the water stream. As water at high pressure passes over a reduced opening, it creates a low-pressure area near the outlet side of the eductor. This low-pressure area creates a suction effect. The eductor pickup tube is connected to the eductor at this low-pressure point. The pickup tube submerged in the foam concentrate draws concentrate into the water stream, creating a foam water solution.

OBS

Foam Concentrate Proportioners. In order that a predetermined volume of liquid foam concentrate may be taken from its source and placed into a water stream to form a foam solution of fixed concentration, the following two general method classifications are made: 1. Methods which utilize the pressure energy of the water stream by venturi action and orifices to induct concentrate. ... 2. Methods which utilize external pumps or pressure heads to inject concentrate into the water stream at a fixed ratio to flow.

French

Domaine(s)
  • Matériel de secours et de lutte (incendies)
  • Agents extincteurs

Spanish

Save record 26

Record 27 2002-02-25

English

Subject field(s)
  • Meteorology
  • Hydrology and Hydrography
CONT

Waves are formed due to the friction of the wind over the water surface. The three main components for wave generation are the wind speed, it's duration and fetch.... How to recognise a swell/wave generating area. On a weather chart there are high and low pressure systems. They are separated by isobars(lines joining places of equal pressure). Buys Ballot's law states :"If you stand with your back to the wind in the northern hemisphere, the low pressure will be on your left. "From this you can deduce the wind flows anticlockwise around a low pressure system and almost parallel to the isobars. The wind near the surface actually flows at an angle of about 15 degrees to the isobars pointing in to the low. The reason for this is that friction with the surface slows the air down and it is this friction which causes waves to form. Assuming you have identified an area of closely packed isobars which are almost straight for 200 miles and the low system is not changing to quickly, you have found a good swell generating area.

CONT

Wave generation area described in terms of fetch length ...

OBS

fetch length: The horizontal distance (in the direction of the wind) over which a wind generates seas.

French

Domaine(s)
  • Météorologie
  • Hydrologie et hydrographie
DEF

Zone de l'océan sur laquelle les vents, soufflant dans la même direction pendant un temps plus ou moins long avec une force constante, engendrent une mer du vent dont les vagues sortent de l'aire et forment la houle.

Spanish

Campo(s) temático(s)
  • Meteorología
  • Hidrología e hidrografía
Save record 27

Record 28 2001-08-16

English

Subject field(s)
  • Public Utilities (Civil Engineering)
CONT

The ground water in the Bidhannagar area of Calcutta has high iron content, making it rather unsuitable for domestic use as well as for drinking. In view of this unprecedented problem, the CMDA opted to provide water from an existing surface source, namely from the Tallahplata complex. Due to the distance between Tallah and Bidhannagar, it was necessary to install a pressure boosting station. It was to cater to this requirement that the Salt Lake Boosting Pumping Station came into being.

French

Domaine(s)
  • Services d'utilité publique (Génie civil)
DEF

Installation destinée à accroître la pression à laquelle est soumise un fluide.

CONT

Actuellement neuf compartiments sont en service et représentent un stockage global de 12 000 m³. Ce volume permet d'assurer une réserve de sécurité proche de la consommation journalière moyenne. En période estivale, une chloration permet le maintien de la bonne qualité bactériologique de l'eau. La station de la Contrie est également une station de surpression [...] facilitant la distribution d'eau dans les communes de Saint-Herblain, Orvault et même St-Nazaire.

OBS

Une station de surpression se situera à proximité d'un champ de puits captants, d'une station de traitement d'eau potable, sur un réseau de distribution, dans un immeuble de grande hauteur.

Spanish

Save record 28

Record 29 2001-04-25

English

Subject field(s)
  • Atmospheric Physics
CONT

The prevailing winds in Sydney area are a combination of synoptic(pressure driven) flows and meso-scale(local) flows. The synoptic conditions are dominated by high pressure systems, moving air in a clockwise direction across Australia, from west to east, with an average period of six to seven days. In summer these high pressure systems are located to the south of Sydney, resulting in onshore synoptic winds. In winter these synoptic pressure systems shift north, following the movement of the sun to the northern hemisphere, resulting in westerly synoptic winds. The winter westerly winds have the greatest number of days when wind speeds exceed 40kph(Linacre, 1997).

French

Domaine(s)
  • Physique de l'atmosphère
CONT

Le vent synoptique. C'est le vent principal; quand ça souffle fort, c'est généralement lui. Le vent synoptique utilise le principe numéro 1 [l'air a tendance à se déplacer depuis les zones de hautes pressions (anticyclones) vers les zones de basses pressions]. Donc, quand la pression atmosphérique monte ou descend en un point, les masses d'air se déplacent. [...] De forte différences de pression entre un point et un autre entraînent des vents violents, car la nature tente de combler la dépression en piquant de l'air dans une zone anticyclonique.

OBS

Le vent moyen : vent mesuré et moyenné pendant un intervalle de temps déterminé. Il est aussi appelé vent synoptique. Il s'agit du vent transmis dans les messages (moyenné sur dix minutes). Il est le plus représentatif des mouvements de l'air.

Spanish

Save record 29

Record 30 2000-12-12

English

Subject field(s)
  • Palletization
  • Plastic Materials
CONT

The structural foam pallet has a foam core and the high pressure molded pallet is solid plastic. Another area where plastic pallet proponents say wood doesn’t compare is space utilization. Many plastic pallets are designed with nine legs, making them "nestable, "a great space saver in the warehouse and on trailers.

French

Domaine(s)
  • Palettisation
  • Matières plastiques
CONT

Les palettes de mousse structurée, solution de rechange aux palettes de bois traditionnelles, offrent de nombreux avantages : elles sont sûres pour l'environnement, recyclables et dépourvues de clous et d'échardes. De plus, elles sont durables et légères (leur poids est jusqu'à 30 p. 100 inférieur); enfin, elles offrent de nombreux avantages utilitaires au chapitre de l'empilement et du moulage. Comme nous n'avons plus besoin d'accessoires mécaniques pour les fixer, les dommages causés au produit et à l'emballage sont réduits au minimum. Dépourvues de clous et de vis sujets à la rouille, les palettes de mousse structurée sont plus solides; comme elles ne sont pas sujettes à l'humidité, aux maladies fongiques et aux invasions d'insectes, elles peuvent être utilisées dans des environnements hostiles.

Spanish

Save record 30

Record 31 2000-02-25

English

Subject field(s)
  • Meteorology
DEF

The spatial displacement of an area of high pressure caused by the local redistribution of mass in the atmosphere.

OBS

This redistribution is accomplished by the three-dimensional motion associated with the atmospheric circulation. The trajectory of the centre is often altered by local heating or cooling of the air column, usually as a result of thermal fluxes at the surface. These fluxes change the temperature of the air near the surface resulting in density changes which modify surface pressures.

French

Domaine(s)
  • Météorologie
DEF

Déplacement spatial d'une aire de haute pression causé par la redistribution locale de la masse de l'atmosphère. Cette redistribution est accomplie par le mouvement tridimensionnel associé à la circulation atmosphérique.

OBS

La trajectoire du centre est souvent modifiée par le réchauffement ou refroidissement local de la colonne d'air dû aux flux thermiques de surface. Ces variations de la température de l'air près de la surface affectent la densité et de ce fait modifient les pressions de surface.

Spanish

Campo(s) temático(s)
  • Meteorología
DEF

Desplazamiento espacial de una zona de alta presión causado por la redistribución local de la masa en la atmósfera. Esa redistribución se realiza por el movimiento tridimensional asociado a la circulación atmosférica.

OBS

La trayectoria del centro se ve a menudo alterada por el calentamiento o el enfriamiento locales de la columna de aire, habitualmente como resultado de los flujos térmicos de superficie. Esas variaciones de la temperatura del aire cerca de la superficie afectan a la densidad y por ello modifican las presiones superficiales.

Save record 31

Record 32 1994-10-03

English

Subject field(s)
  • Papermaking Machines
OBS

The process of through-drying... Essentially, a hot, unsaturated gas is passed through a wet, porous material(e. g., the tissue web) by imposing a pressure differential across the material. As the hot gas passes through, heat is transferred to evaporate the water, and the gas leaves at a reduced temperature and with increased water vapor content. The intimate contact between the hot gas and the web, coupled with the large internal surface area of the porous material, produces exceptionally high drying rates.

French

Domaine(s)
  • Machines à papier
CONT

La sécherie monocylindrique n'est plus l'outil idéal pour sécher la feuille, parce qu'il faut apporter plus de chaleur et assurer un bon contact entre la feuille et le cylindre pour favoriser le transfert de chaleur. La tension exercée pour plaquer la feuille contre le cylindre est habituellement de 53 kN/m, ce qui provoque le compactage du papier. Pour éviter cet effet, on utilise des sécheurs à air traversant [...] soit avant soit après la sécherie monocylindrique pour conserver le bouffant et obtenir des taux d'évaporation plus élevés.

Spanish

Save record 32

Record 33 1993-03-11

English

Subject field(s)
  • Pumps
CONT

The high velocity nozzle stream jumps from the nozzle tip to the venturi throat which creates a vacuum in that area allowing atmospheric pressure to drive water through the foot valve into the ejector body.

French

Domaine(s)
  • Pompes
CONT

Celle-ci transforme cette pression en vitesse et le jet d'eau haute vitesse qui passe dans le col du venturi y crée un vide permettant à la pression atmosphérique de refouler de l'eau par le clapet de pied jusque dans le corps de l'éjecteur.

Spanish

Save record 33

Record 34 1987-01-15

English

Subject field(s)
  • General Vocabulary
CONT

A large area of high pressure will bless Ontario with fine weather.

French

Domaine(s)
  • Vocabulaire général
CONT

une vaste zone de haute pression vaudra du beau temps à l'Ontario

Spanish

Save record 34

Record 35 1986-06-11

English

Subject field(s)
  • Geophysics
  • Energy (Physics)
CONT

Conventional safety-valves have the advantages that the lifting pressure can be varied at will and set precisely, and that they will re-seat when the pressure has fallen sufficiently; but they have the disadvantages of high cost and of the difficulty of maintaining an absolutely tight seal. In geothermal conditions this may result in the precipitation of dissolved solids in the area around the seatings, which could necessitate increased maintenance and sometimes even prevent the valve from discharging its full rated output.

French

Domaine(s)
  • Géophysique
  • Énergie (Physique)

Spanish

Save record 35

Record 36 1983-05-06

English

Subject field(s)
  • Archaeology
OBS

in Arctic and West Subarctic area; characterized by long and large lanceolate points flaked by pressure, and found in high plains of North America, dating from the early postglacial times, ca. 8, 000 to 4, 000 B. C.

French

Domaine(s)
  • Archéologie

Spanish

Save record 36

Record 37 1981-06-12

English

Subject field(s)
  • Drainage and Irrigation (Agric.)
CONT

A giant sprinkler system consists of one or more large sprinklers discharging from 100 to several hundred gallons a minute over an area of 200 feet or more in diameter. The disadvantages of giant sprinklers are the high cost of operation caused by the high pressure required to operate the sprinklers, and the high rate of application and poor uniformity of conditions.

French

Domaine(s)
  • Drainage et irrigation (Agriculture)
CONT

Un système d'aspersion géant comprend un ou plusieurs asperseurs lançant 100 ou plusieurs centaines de gallons d'eau à la minute sur une surface de 200 pi ou plus de diamètre (quelque 1 000 L/min sur une surface de 60 m de diamètre). Les désavantages des asperseurs géants sont le coût élevé de leur fonctionnement à cause de la pression élevée qu'ils exigent, du fort volume de l'application, et du manque d'uniformité de l'aspersion lorsqu'il vente.

Spanish

Save record 37

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