TERMIUM Plus®

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

PLOTTING SPEED [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-11-23

English

Subject field(s)
  • Meteorological Forecasting, Data Measurement and Analysis
DEF

A means of representing wind speed in the plotting of a synoptic chart, being a short, straight line drawn obliquely toward lower pressure from the end of a wind-direction shaft.

OBS

Each barb equals 10 knots, each half-barb 5 knots and each solid triangle 50 knots.

French

Domaine(s)
  • Prévisions météorologiques et mesure et analyse des données
DEF

Trait droit oblique pointant vers les basses pressions placé à l'extrémité de la hampe de vent pour représenter la vitesse du vent.

OBS

Chaque barbule vaut 10 nœuds, une demi-barbule vaut 5 nœuds et un triangle plein 50 nœuds.

Spanish

Campo(s) temático(s)
  • Previsiones meteorológicas, medición y análisis de datos
DEF

Línea recta oblicua que señala hacia las bajas presiones en el extremo del asta del viento para representar la velocidad del viento.

OBS

Una barba vale 10 nudos, media barba 5 nudos y un triángulo lleno 50 nudos.

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Record 2 2017-10-26

English

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

A maritime radar with Automatic Radar Plotting Aid(ARPA) capability can create tracks using radar contacts. The system can calculate the tracked object's course, speed and closest point of approach(CPA), thereby knowing if there is a danger of collision with the other ship or landmass.

French

Domaine(s)
  • Radar, radioguidage et radiogoniométrie
CONT

L'ARPA (acronyme anglais signifiant Automatic Radar Plotting Aid, en français «aide de pointage radar automatique») est un équipement associé au radar de navigation pour assurer le suivi des échos afin d'aider le navigateur dans le choix d'une manœuvre pour éviter la collision.

Spanish

Save record 2

Record 3 2015-03-12

English

Subject field(s)
  • Statistical Graphs and Diagrams
  • Meteorological Forecasting, Data Measurement and Analysis
DEF

A board upon which the horizontal trajectory of a pilot-balloon is plotted and the wind speeds and directions determined.

OBS

Pilot Balloon-Meteorological Plotting Board. Observations of a pilot balloon ascent, made by a theodolite are solved for wind speed and direction by graphical means using a plotting board. This method was used in the United States military and civilian weather services until the wide spread adoption of computer programs for solving the sightings. This board is used with a standard slide rule as opposed to the U. K. Met. Office Pilot Balloon Slide Rule.

Key term(s)
  • pilot balloon meteorological plotting board
  • pilot-balloon plotting board
  • pilot-balloon meteorological plotting board
  • pibal plotting board

French

Domaine(s)
  • Diagrammes et graphiques (Statistique)
  • Prévisions météorologiques et mesure et analyse des données
DEF

Graphique sur lequel on reporte la trajectoire horizontale d'un ballon-pilote et on détermine les directions et les vitesses du vent.

Spanish

Save record 3

Record 4 2005-10-25

English

Subject field(s)
  • Weather Stations and Meteorological Instruments and Equipment
DEF

Free balloon whose path while moving upwards is visually observed in order to measure upper winds.

CONT

One expedient method for determining the winds aloft entails the launching and tracking of a pilot balloon, also known as a pibal. The name for these balloons that do not carry instruments apparently came from their use during the 19th century when they were launched prior to manned balloon ascents to help guide or "pilot" the manned balloons. The brightly colored helium filled balloon rises at a known ascent rate. However, the balloon is carried horizontally with the wind. Since the assumption is made that the balloon serves as a tracer of the wind, the horizontal motion of the balloon over measured time intervals can be used to determine the wind speed. An observer visually tracks the motion of the balloon with an instrument called a theodolite and records the elevation and azimuth angles at timed intervals. The sequence of observed elevation and azimuth information are plotted on a plotting board to obtain the balloon motion. The wind speed and direction at each selected level are determined. Wind observations may be limited by low cloud ceilings that obscure the balloon.

OBS

pilot balloon: term standardized by ISO.

French

Domaine(s)
  • Stations, instruments et équipements météorologiques
DEF

Ballon de petit diamètre, dont la trajectoire, observée depuis le sol à l'aide d'un théodolite ou d'un radar, indique la vitesse du vent et sa direction.

OBS

ballon pilote : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Estaciones, instrumentos y equipos meteorológicos
DEF

Globo libre cuya trayectoria ascendente se observa visualmente para determinar los vientos en altitud.

Save record 4

Record 5 2000-06-28

English

Subject field(s)
  • IT Security
CONT

The speed of virus spread is much slower than most people expect. This means that the logging of occurrences is important, even with a significant margin of error in reporting the time of discovery. Place of discovery is more difficult to get wrong and can also be used in plotting the progress of the spread of a virus. Electronic communications are making the plotting of the virus spread more difficult, since a user can contract a virus from a program downloaded from bulletin boards one mile away or 10, 000 miles away equally easily.

Key term(s)
  • spreader

French

Domaine(s)
  • Sécurité des TI
CONT

La vitesse de propagation d'un virus est beaucoup plus lente qu'on ne le pense généralement. Il est donc important d'enregistrer les occurrences même avec une marge d'erreur significative dans la signalisation de l'heure de la découverte. Le lieu de la découverte est plus facile à déterminer et permet également de suivre la propagation du virus.

OBS

Voir aussi «ver».

Spanish

Save record 5

Record 6 1993-02-18

English

Subject field(s)
  • IT Security
CONT

The speed of virus spread is much slower than most people expect. This means that the logging of occurrences is important, even with a significant margin of error in reporting the time of discovery. Place of discovery is more difficult to get wrong and can also be used in plotting the progress of the spread of a virus.

French

Domaine(s)
  • Sécurité des TI
CONT

La vitesse de propagation d'un virus est beaucoup plus lente qu'on ne le pense généralement. Il est donc important d'enregistrer les occurrences même avec une marge d'erreur significative dans la signalisation de l'heure de la découverte. Le lieu de la découverte est plus facile à déterminer et permet également de suivre la propagation du virus.

Spanish

Save record 6

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