TERMIUM Plus®

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

OPERATIONAL FORECASTER [2 records]

Record 1 2003-04-09

English

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

Modern operational weather forecasts now include information on the likelihood of various weather events, usually determined through ensemble prediction systems (EPS).

CONT

... ISCS/WAFS [International Satellite Communications System/World Area Forecast System] purpose is to provide the worldwide aviation community with operational meteorological forecasts and information about meteorological phenomena required for flight planning and safe, economic, and efficient air navigation.

CONT

Operational weather forecasts contain information about future weather. To extract the maximum amount of value from such forecasts, they must be integrated into decision making in a rational way. This can be achieved by modelling the impact of weather on the utility of a company.

OBS

Operational forecaster analyzes weather conditions and issues forecasts or alerts the public of severe weather

French

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

Prévisions météorologiques opérationnelles. Les prévisions couvrant les 5 prochains jours en provenance du U.K. Met. Office sont reçues automatiquement deux fois par jour et présentées sous diverses formes. Tableau (pression atmosphérique, force et direction du vent à Westhinder). Graphique (évolution temporelle de la force du vent à Westhinder). Animation (évolution spatiale et temporelle de la pression atmosphérique et de la force et direction du vent dans la région Nord-Atlantique).

CONT

Actuellement on dispose de prévisions opérationnelles dont la validité atteint cinq jours.

Key term(s)
  • prévision opérationnelle du temps

Spanish

Save record 1

Record 2 2002-05-16

English

Subject field(s)
  • Atmospheric Physics
DEF

Level in the atmosphere at which the horizontal divergence is near zero.

CONT

An operational forecaster locates regions of upper level divergence by locating the divergence sector of a vorticity gradient near the LND(Level of Non-divergence). The LND is closest to the mandatory level of 500 mb, thus upper level vorticity is usually plotted on this prog. The LND is the general level that separates the low levels of the troposphere from the upper levels. Vorticity advection is best assessed near the LND.

OBS

level of non-divergence ... It is generally situated at about 600 hPa, the horizontal divergence having opposite signs in the lower and upper troposphere.

Key term(s)
  • non-divergence level
  • non divergence level

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Niveau de l'atmosphère où la divergence horizontale avoisine zéro.

OBS

Il se situe habituellement vers 600 hPa, la divergence horizontale ayant des signes opposés dans la basse et la haute troposphère.

Spanish

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

Nivel de la atmósfera en que la divergencia horizontal está próxima de cero.

OBS

Un nivel de estas características existe con frecuencia en los 600 hPa; la divergencia horizontal tiene signos opuestos en la troposfera alta y baja.

Save record 2

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: