TERMIUM Plus®

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THERMAL TURBULENCE [1 record]

Record 1 2003-05-22

English

Subject field(s)
  • Atmospheric Physics
  • Fluid Mechanics and Hydraulics (Physics)
DEF

Turbulent vertical motions that result from surface heating and the subsequent rising and sinking of air.

CONT

Thermal turbulence in the atmosphere is usually the main factor that limits the resolution, or fine detail, that can be seen on the planets or the moon. When the seeing is good, planetary detail is distinct and has better contrast. Bad seeing is characterized by a dynamic blurring, or even severe motion of the entire planetary disk.

French

Domaine(s)
  • Physique de l'atmosphère
  • Mécanique des fluides et hydraulique (Physique)
CONT

La turbulence thermique résulte des mouvements convectifs provoqués par le réchauffement de la basse atmosphère au contact du sol captant l'énergie solaire.

CONT

On peut distinguer deux types de turbulence : la turbulence mécanique (tourbillons créés par la différence de vitesse des masses d'air, ou par le mouvement de l'air qui entre en contact avec des objets), et la turbulence thermique (tourbillons créés par la différence de température des masses d'air).

Spanish

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