TERMIUM Plus®

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

ICE-FORMING AGENT [1 record]

Record 1 2017-01-13

English

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

The materials used in cloud seeding include two primary categories, tied to the type of precipitation process involved. One category includes those which act as glaciogenic (ice-forming) agents, such as silver iodide, dry ice and compressed liquid propane or carbon dioxide, which are appropriate in cloud systems where the precipitation process is primarily cold (colder than freezing). Of the ice-forming materials, the most commonly used is silver iodide.

CONT

Fog and stratus removal. Operations that dissipate supercooled fog and low stratus (clouds containing water droplets at subfreezing temperatures) by seeding with ice-forming agents (e.g., dry ice, liquid nitrogen, compressed air, silver iodide, etc.) have become routine at some airports.

Key term(s)
  • ice-producing agent
  • ice-producing substance
  • ice-forming material

French

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

[...] très fines particules solides jouant le rôle de noyaux de cristallisation, c'est-à-dire provoquant la solidification spontanée des gouttelettes surfondues avec lesquelles elles entrent en contact.

CONT

Il s'agit le plus souvent de fines particules d'iodure d'argent ou parfois de neige carbonique. Divers procédés peuvent être mis en œuvre pour assurer un tel ensemencement : brûleurs au sol de solutions d'iodure d'argent dont les fumées sont censées pénétrer dans le nuage grâce aux courants ascendants naturels, fusées libérant le produit glaçogène sur une partie de sa trajectoire, obus explosant à un niveau approprié de nuage, ensemencement par avion.

Key term(s)
  • produit glacigène

Spanish

Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
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: