TERMIUM Plus®

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

CLOSED LOW [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2005-02-24

English

Subject field(s)
  • Atmospheric Physics
DEF

A low that may be completely encircled by an isobar or contour line.

OBS

Strictly, all lows are closed. However, in weather-map analysis terminology, this designation is used commonly in two respects: 1) on surface charts, to distinguish a low from a trough, especially as a low develops within the trough; and 2) on upper-level charts, to accentuate the fact that the circulation is closed, especially at levels and over latitudes where such an occurrence is unusual.

French

Domaine(s)
  • Physique de l'atmosphère
DEF

Aire de basse pression complètement encerclée par une isobare.

Spanish

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