TERMIUM Plus®

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

WEATHER EFFECT [19 records]

Record 1 2023-02-02

English

Subject field(s)
  • Modelling (Mathematics)
  • Farming Techniques
  • Climatology
  • Crop Protection
CONT

Crop-yield weather modelling refers to the techniques [that] can be used operationally to determine the likely effect of weather on yields. Although the incidence of weather conditions on yields is well established, its quantitative assessment is not always straightforward : time series analyses of agricultural statistics show that inter-annual variability... of crop yields can be roughly subdivided into [three] components :(i) trend,(ii) direct weather factors[, ] and(iii) indirect weather effects, pests, diseases, weed competition, etc.

Key term(s)
  • crop-yield weather modeling
  • crop yield weather modelling
  • crop yield weather modeling
  • crop weather modeling

French

Domaine(s)
  • Modélisation (Mathématique)
  • Techniques agricoles
  • Climatologie
  • Protection des végétaux

Spanish

Save record 1

Record 2 2022-12-08

English

Subject field(s)
  • Atmospheric Physics
  • Scientific Measurements and Analyses
CONT

The term indoor relative humidity is sometimes used to specify the relative humidity which outside air will have when heated to a given room temperature, such as 72 °F, without addition of moisture. It always has a low value in cold weather and is then a better measure of the drying effect on skin than is outdoor relative humidity.

French

Domaine(s)
  • Physique de l'atmosphère
  • Mesures et analyse (Sciences)
OBS

Humidité relative à l'air libre ou à l'extérieur d'un édifice.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Medición y análisis (Ciencias)
Save record 2

Record 3 2022-12-08

English

Subject field(s)
  • Atmospheric Physics
  • Scientific Measurements and Analyses
CONT

The term indoor relative humidity is sometimes used to specify the relative humidity which outside air will have when heated to a given room temperature, such as 72 °F, without addition of moisture. It always has a low value in cold weather and is then a better measure of the drying effect on skin than is outdoor relative humidity.

French

Domaine(s)
  • Physique de l'atmosphère
  • Mesures et analyse (Sciences)

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Medición y análisis (Ciencias)
Save record 3

Record 4 2022-08-30

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
  • Special-Language Phraseology
CONT

[Weatheradio Canada] provides continuously updated weather reports, both current conditions and forecasts, as well as any weather warning in effect.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
  • Phraséologie des langues de spécialité

Spanish

Save record 4

Record 5 2022-07-13

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
  • River and Sea Navigation
CONT

The regular marine forecast gives a description of the marine winds and weather, visibility [or] freezing spray(if applicable), expected over the marine district. It also states any marine warnings or watches that may be in effect.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
  • Navigation fluviale et maritime
CONT

Les prévisions maritimes régulières décrivent les vents et les conditions météorologiques maritimes, la visibilité et les embruns verglaçants (le cas échéant) prévus dans le secteur maritime. De plus, elles comprennent les veilles et les avertissements en vigueur pour le secteur.

Spanish

Campo(s) temático(s)
  • Previsiones meteorológicas, medición y análisis de datos
  • Navegación fluvial y marítima
Save record 5

Record 6 2022-07-05

English

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

Humid weather will also ratchet up the sweating rate—but in high humidity, sweat typically drips off the body rather than evaporating, thus providing no cooling effect.

French

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

Mais pourquoi est-ce si difficile de courir par temps humide? Il faut comprendre que plus le taux d'humidité est élevé, plus l'air ambiant est saturé en minuscules particules d'eau. Pour se refroidir, le corps humain transpire pour garder une température corporelle stable. Cela devient plus difficile pour la sueur de s'évaporer lorsque l'air regorge déjà d'eau.

Spanish

Campo(s) temático(s)
  • Fenómenos meteorológicos, climáticos y atmosféricos
Save record 6

Record 7 2011-11-17

English

Subject field(s)
  • Climatology
DEF

... a soil/duff drought index [developed by Keetch and Byram (1968]) that ranges from 0 (no drought) to 800 (extreme drought) and is based on soil capacity of 8 inches of water. Factors in the index are maximum daily temperature, daily precipitation, antecedent precipitation, and annual precipitation.

CONT

The Keetch Byram Drought Index(KBDI) provides a daily measure of soil dryness, which, in turn, gives an indication of water stress in plants. The KBDI represents the net effect of precipitation and evapotranspiration in producing cumulative moisture deficiency in deep duff or upper soil layers. The KBDI has a range from 0(no drought or soil moisture deficiency, i. e. soil at field capacity) to 2000(extreme drought, maximum soil moisture deficiency possible). The index can be viewed as the amount of rain needed to bring the soil back to saturation, with one mm of rain reducing the index by 10 points. The 0-2000 point scale is divided into three drought classes : 0-999=Low; 1000-1499=Moderate; 1500-2000=High. The KBDI is simple to calculate as it uses only two, daily weather observations-maximum temperature and 24-hour rainfall. The system functions in a book-keeping fashion where estimates of daily evapo-transpiration and measurements of precipitation increase or decrease the value of yesterdays index. The KBDI by itself is not a Fire Danger Rating System as it gives no indicate of the ease of ignition of the vegetation, or of the rate of fire spread, fire intensity and difficulty of control. It does however serve as a useful measure of drought occurrence.

CONT

Keetch-Byram Drought Index (KBDI): ... 0 - 200: Soil moisture and large class fuel moistures are high and do not contribute much to fire intensity. Typical of spring dormant season following winter precipitation. 200 - 400: Typical of late spring, early growing season. Lower litter and duff layers are drying and beginning to contribute to fire intensity. 400 - 600: Typical of late summer, early fall. Lower litter and duff layers actively contribute to fire intensity and will burn actively. 600 - 800: Often associated with more severe drought with increased wildfire occurrence. Intense, deep burning fires with significant downwind spotting can be expected. Live fuels can also be expected to burn actively at these levels.

CONT

... the Palmer Drought Index (PDI) and the Keetch-Byram Drought Index (KBDI) ... were [both] developed by John Keetch and George Byram, and originally were developed as aids for agriculture. The ... KBDI is used extensively in the eastern states and also in some parts of the west.

OBS

In the metric system the value of the index is usually assumed to range from 0 to 200 mm (even though 800 points actually corresponds to 204 mm).

OBS

Keetch-Byram Drought Index [is] a commonly-used drought index adapted for fire management applications ...

OBS

"Duff" is ... an important term in the fire weather program of the US Forest Service, used to describe the partially decayed organic matter on the forest floor which can become highly combustible during drought periods and contribute to the longevity and spread of forest fires. ... the Keetch-Byram Drought Index is sometimes referred to as the soil/duff drought index because it is a measure of how dry the soil and duff layers are.

French

Domaine(s)
  • Climatologie
OBS

On écrirait mieux «sècheresse».

OBS

sècheresse : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).

Key term(s)
  • indice de sècheresse Keetch-Byram

Spanish

Save record 7

Record 8 2011-09-01

English

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

A more or less continuous, luminous electrical discharge of weak or moderate intensity in the atmosphere, emanating from elevated objects at the Earth’s surface (lightning conductors, wind vanes, masts of ships) or from aircraft in flight (wing tips, propellers, etc.).

CONT

St. Elmo’s fire ... occurs from objects, especially pointed ones, when the electrical field strength near their surfaces attains a value near 1000 volts per centimeter. It often occurs during stormy weather and might be seen on a ship’s mast or yardarm, aircraft, lightning rods, and steeples.

OBS

Saint Elmo’s fire ... A single flame is called a Helena, or a Corposant; a double, or twin, flame is called a Castor and Pollux, or a double Corposant. It takes its name from St. Elmo, the patron saint of sailors.

OBS

corposant: Portuguese and obsolete Spanish corpo santo, both from Latin corpus snctum, holy body : corpus, body ...

OBS

St. Elmo’s fire: usually bluish or greenish in colour, sometimes white or violet.

OBS

St Elmo’s fire is thought to be a form of corona discharge caused by the high electrical potential in a thunderstorm.

OBS

In consulted sources, most often than not, Saint Elmo's fire and corona discharge are considered as synonyms. However, some sources, define Saint Elmo's fire as a form of corona discharge. Saint Elmo's fire occurred during bad weather(thunderstorm, etc.). Corona discharge occurred when very strong electrical field develops. "When this luminous effect occurs on or near power lines, it is known as corona discharge, a phenomenon similar to Saint Elmo's Fire. Sometimes this ionized air detaches itself from the lines and moves about independently of them. "[<a href="http ://www. saviour-of-all. org/UFO2. html" title="http ://www. saviour-of-all. org/UFO2. html">http ://www. saviour-of-all. org/UFO2. html</a>]

French

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

Décharge électrique lumineuse dans l'atmosphère; cette décharge, plus ou moins continue et d'intensité faible ou modérée, émane soit d'objets élevés situés à la surface du globe (paratonnerres, appareils anémométriques, mâts de navires, etc.), soit d'aéronefs en vol (bouts d'ailes, hélices, etc.).

CONT

feu Saint-Elme. [...] Sous forme de panaches, ou bien d'aigrettes violettes ou verdâtres, nettement visible la nuit, ce phénomène s'observe lorsque le champ électrique devient intense au voisinage de la surface des objets.

CONT

L'éclair est annoncé parfois par des phénomènes lumineux qui apparaissent à l'extrémité des mâts de navire, aux angles des maisons, ou aux pics des montagnes. Dans un air fortement chargé d'électricité, de petites flammes bleues jaillissent autour de ces points particulièrement exposés. Ce sont des «feux Saint-Elme», du nom de l'évêque italien du début du IVe siècle, devenu patron des navigateurs.

OBS

Le feu Saint-Elme. On le nommait aussi : feu de saint Nicolas ou feu de sainte Anne, divinités favorables aux marins. Actuellement, il est surtout connu sous le nom de feu Saint-Elme.

Spanish

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

Descarga eléctrica luminosa que se observa en la atmósfera, más o menos continua y de intensidad ligera o moderada, emitida por objetos elevados situados en la superficie terrestre (pararrayos, anemómetros, mástiles de buques, etc.) o en aeronaves en vuelo (extremos de las alas, hélices, etc.).

Save record 8

Record 9 2010-12-03

English

Subject field(s)
  • Weapon Systems
CONT

Cold weather has a different effect on other types of weapons. "Bursting munitions"--hand grenades, mortars, artillery shells--are very effective on dry ground because they can break up on rocks and create a lot of additional, shrapnel-like projectiles. They’re less effective in snow, which muffles the shrapnel effect.

Key term(s)
  • bursting type munitions
  • bursting type munition
  • bursting-type munition
  • bursting munition
  • burst munition

French

Domaine(s)
  • Systèmes d'armes
Key term(s)
  • munition explosive

Spanish

Save record 9

Record 10 2010-03-02

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
  • Pest Control Equipment
CONT

The second scourge of the weather is hail. This has, it is true, a more localised effect but the havoc that it brings is considerable in the small area that it sweeps. The grapes which have been split by hailstones lose their juice which in turn causes rot to set in, which lowers the quality of the already greatly reduced harvest. Certain vineyard areas have installed anti-hail guns but it must be admitted that their success is far from complete.

CONT

Frost is a risk well known to local orchardists, but the sudden hail storms which occur regularly between September and January constitute a particularly selective threat to the young fruit crop. ... alternative means were sought to combat hail. One such device was the ’hail gun’, originating in France and first introduced into an Ardmona orchard in time for the 1986-7 season. Certainly not a recent invention and lacking scientific support for its efficacy, the hail gun has gained a strong following among orchardists. Costing about $30,000 each, hail guns are electronically operated and powered by exploding acetylene; the benefits were demonstrated, to the satisfaction of some, during a damaging storm in 1987. Their precise mode of action remains uncertain.

Key term(s)
  • antihail gun

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
  • Matériel de protection des végétaux
CONT

De tout temps les agriculteurs ont tenté de lutter contre la grêle, mais tous les essais de lutte contre ce phénomène se sont jusqu'à présent révélés vains. Parmi les procédés les plus anciennement utilisés figure le canon paragrêle, lançant des charges explosives dans les nuages réputés grêligènes. L'inefficacité de ce canon, conçu sans bases scientifiques, est maintenant reconnue par tous les experts.

OBS

grêlifuge : Se dit des appareils, engins (canons) ou pièces d'artifice (fusées), employés pour lutter contre la grêle.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
  • Equipo para la lucha antiparasitaria
Save record 10

Record 11 2007-08-27

English

Subject field(s)
  • Crop Protection
CONT

To minimize the russetting effect of sprays on Golden Delicious, do not apply during cool, moist weather or in the evening.

French

Domaine(s)
  • Protection des végétaux
CONT

Utiliser la bouillie bordelaise après ce stade de croissance pourrait avoir un effet rugogène (provoquer la rugosité).

OBS

Se dit de l'effet d'un produit phytosanitaire qui cause la rugosité.

Spanish

Save record 11

Record 12 2007-03-28

English

Subject field(s)
  • Atmospheric Physics
DEF

Generally, the effect of any lake in modifying the weather about its shore and for some distance downwind.

OBS

In the United States ... More specifically, lake effect often refers to the generation of sometimes spectacular snowfall amounts to the lee of the Great Lakes as cold air passes over the lake surface, extracting heat and moisture, resulting in cloud formation and snowfall downwind of the lake shore.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Effet d'un lac sur ses rives au point de vue temps et climat.

Spanish

Save record 12

Record 13 2007-01-26

English

Subject field(s)
  • Space Exploration Equipment and Tools
  • Spacecraft
CONT

The SEM subsystem consists of four instruments used for in situ measurements and monitoring of the near-earth (geostationary altitude) space environment and for observing the solar X-ray output. An energetic particles sensor (EPS) and high energy proton and alpha detector (HEPAD) monitor the incident flux density of protons, alpha particles, and electrons over an extensive range of energy levels. Solar output is monitored by an X-ray sensor (XRS) mounted on an X-ray positioning platform, fixed on the solar array yoke. Two redundant three-axis magnetometers, mounted on a deployed 3-meter boom, operate one at a time to monitor Earth’s geomagnetic field strength in the vicinity of the spacecraft. The SEM instruments are capable of ground command-selectable, in-flight calibration for monitoring on-orbit performance and ensuring proper operation.

CONT

The Space Environment Monitor(SEM) measures in situ the effect of the Sun on the near-earth solar-terrestrial electromagnetic environment, providing real-time data to the Space Environment Services Center(SESC). The SESC, as the nation's "space weather" service, receives, monitors, and interprets a wide variety of solar-terrestrial data, and issues reports, alerts and forecasts for special events such as solar flares or geomagnetic storms. This information is important to the operation of military and civilian radio wave and satellite communication and navigation systems, as well as electric power networks, and to the mission of geophysical explorers, Shuttle and Space Station astronauts, high-altitude aviators, and scientific researchers.

French

Domaine(s)
  • Équipement et outillage d'exploration spatiale
  • Engins spatiaux
CONT

SEM : Le moniteur d'environnement spatial (mesure de l'énergie des flux de particules).

Spanish

Save record 13

Record 14 2004-11-09

English

Subject field(s)
  • Environmental Studies and Analyses
  • Toxicology
DEF

The condition of being subjected to something, as to infectious agents, extremes of weather or radiation, which may have a harmful effect.

CONT

The measurement of toxicity [takes into account the] time and frequency of exposure, the route by which exposure occurs, and the dose delivered including the physical and chemical form of the substance. Experimental exposure may be acute [or chronic].

CONT

exposure to infectious agents can produce serious diseases.

French

Domaine(s)
  • Études et analyses environnementales
  • Toxicologie
DEF

État de quelqu'un, de quelque chose qui est soumis à [...] l'action de quelque chose [...]

OBS

On peut aussi utiliser, en contexte, des termes plus spécifiques, tels que : contact, inhalation, absorption, irradiation, etc.

PHR

Exposition de l'être humain à un polluant.

PHR

Exposition professionnelle.

Spanish

Campo(s) temático(s)
  • Estudios y análisis del medio ambiente
  • Toxicología
DEF

[El] estar sometido a la influencia de una sustancia o a la acción de ésta.

CONT

La exposición a fibras como el asbesto puede desarrollar procesos de cicatrización pulmonar [...]

Save record 14

Record 15 2004-04-20

English

Subject field(s)
  • Radar, Radio Guidance and Goniometry
  • Flight Instruments and Equipment (Aeroindustry)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

The cathode ray tube indicator in a radar set which displays the received signal.

CONT

In her deposition, Ms. O’Bryan testified that ordinarily when she released an aircraft from the Augusta Airport she would watch her radar screen until the aircraft got high enough to establish radar contact. ... [then] if the aircraft had reached high enough to establish radar contact and had then descended below radar contact, the aircraft’s call sign would have moved to a "suspense list" on her radar scope, but she said this did not happen.

CONT

When using radar it is important to examine all the storms on the radarscope. ... When the radarscope has several storms, it can be very difficult to determine which one will be the "storm of the day".

CONT

Weather Watch radars detect rain and hail and estimate their intensity from the strength of the echoes. The radar screen typically shows rain location on a map overlay-in effect, looking down on a storm-and presents various rain intensities in different colours.

OBS

radar screen; radar scope: terms officially approved by the International Civil Aviation Organization (ICAO).

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
  • Instruments et équipement de bord (Constructions aéronautiques)
  • Stations, instruments et équipements météorologiques
DEF

Tube cathodique qui affiche les échos reçus par un radar.

CONT

Le radar météorologique canadien est maintenant facilement accessible, [...] mais la présence de couleurs dans une partie de l'écran radar ne signifie pas qu'il pleuve, ni qu'il neige. Par la même occasion, le simple fait que les échos paraissent faibles ou soient invisibles ne signifie pas qu'un lieu donné ne reçoive pas une importante chute de pluie ou de neige.

OBS

écran radar : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).

Spanish

Campo(s) temático(s)
  • Guía radárica, radioguía y radiogoniometría
  • Instrumentos y equipo de vuelo (Industria aeronáutica)
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Tubo catódico de un equipo de radar que presenta las señales recibidas.

OBS

pantalla de radar: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).

Save record 15

Record 16 2003-05-23

English

Subject field(s)
  • Building Insulation and Acoustical Design
  • Waterproofing (Construction)
  • Joints and Connections (Construction)
DEF

A strip of felt, rubber, metal or other material, fixed along the edges of doors or windows to keep out drafts and reduce heat loss.

CONT

... the effect of weather stripping is similar to insulation in that it reduces the heat loss or heat gain of a structure and also conserves energy. Weather stripping is available in many forms, such as foam rubber or foam plastic strips, which are resilient and compressible. They are usually placed in a door frame or window frame in such a manner that the door or window compresses the material and thereby eliminates air infiltration.

Key term(s)
  • weatherstrip

French

Domaine(s)
  • Isolation et acoustique architecturale
  • Étanchéité (Construction)
  • Joints et assemblages (Construction)
DEF

Bande de feutre ou de mousse, généralement autocollante, que l'on place aux joints des portes ou des fenêtres pour empêcher l'air d'entrer dans les appartements.

DEF

Joint, notamment métallique, qui se place dans la feuillure des portes et des fenêtres pour le même usage.

CONT

Les fabricants proposent plusieurs types de coupe-bise pour le tour des portes : (1) les rubans de caoutchouc-mousse collés sur des bandes de fixation en bois [...]; (2) les bourrelets de caoutchouc à âme vide [...]; (3) les bandes de caoutchouc [...]; (4) les coupe-bise à ressorts ajustables [...]

CONT

Les bourrelets en caoutchouc.

Spanish

Campo(s) temático(s)
  • Aislamiento y acústica arquitectónicos
  • Impermeabilización (Construcción)
  • Juntas y conexiones (Construcción)
Save record 16

Record 17 1996-02-26

English

Subject field(s)
  • Metallurgy - General
DEF

A whitening of an anodic oxide coating caused by light, often irregular, chemical attack during exposure to the weather, particularly in an industrial atmosphere. This effect is not readily removable by simple cleaning techniques.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Métallurgie générale
DEF

Blanchissement de la couche d'oxydation anodique par légère attaque chimique, souvent irrégulière pendant l'exposition atmosphérique, particulièrement en atmosphère industrielle. Cet effet ne peut être facilement éliminé par de simples techniques de nettoyage.

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 17

Record 18 1995-10-16

English

Subject field(s)
  • Mathematics
  • Computer Graphics
DEF

A large effect resulting from the instability in a small cause, metaphorically described by E. Lorenz as the effect produced on the prairie atmosphere by the flutter of the wings of a butterfly in a distant jungle, leading to a devastating prairie tornado.

OBS

A computer-modeled weather forecasting experiment by Edward Lorenz that helped understand an essential property of nonlinear phenomena i.e. the sensitivity to initial conditions characteristic of fractals. See Lorenz attractor.

CONT

The Butterfly effect : for small pieces of weather-and to a global forecaster, small can mean thunderstorms and blizzards-any prediction deteriorates rapidly. Errors and uncertainties multiply, cascading upward through a chain of turbulent features, from dust devils and squalls up to continent-size eddies that only satellites can see.

French

Domaine(s)
  • Mathématiques
  • Infographie
DEF

Mise en évidence de la sensibilité aux conditions initiales dans une modélisation informatique des prévisions météorologiques effectuée en 1963 par le mathématicien Edward Lorenz : dans un milieu instable, susceptible d'amplifier une perturbation minimale, une cause insignifiante, tel le vol d'un papillon, peut avoir un effet énorme comme l'émergence d'une tempête.

OBS

Les effets de Joseph, de Noé, de capillarité, de percolation, de frustration et de tension de surface rendent compte de phénomènes similaires en physique des solides et des liquides.

Spanish

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Record 19 1982-09-27

English

Subject field(s)
  • Air Transport
OBS

An Aeronautical Information Circular shall be originated whenever it is desirable to promulgate(...) effect of certain weather phenomena on aircraft operations(...)

French

Domaine(s)
  • Transport aérien
OBS

Une circulaire d'information aéronautique sera émise chaque fois qu'il est souhaitable de diffuser (...) [les] effets de certains phénomènes météorologiques sur l'exploitation aérienne (...)

Spanish

Save record 19

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