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MESOSCALE TRANSPORT [2 records]

Record 1 2002-04-22

English

Subject field(s)
  • Meteorology
  • Hydrology and Hydrography
  • Oceanography
DEF

eddy conductivity. The exchange coefficient for the transfer of heat by eddies in turbulent flow, i.e. eddy heat flux.

OBS

eddy heat flux : In physical oceanography, the total meridional heat transport due to mesoscale eddies. This has also been used to refer to the correlation of time-dependent fluctuations of velocity and temperature across a section, which is not indicative of the total heat transport due to eddies.

French

Domaine(s)
  • Météorologie
  • Hydrologie et hydrographie
  • Océanographie
CONT

La mer échange de la chaleur avec l'atmosphère par contact. La chaleur cédée (ou reçue) par la mer est fonction du gradient vertical de température dans l'air : K: coefficient de conductivité thermique de l'air, Cp : chaleur spécifique de l'air à pression constante. Si l'air est stationnaire, la conduction est due aux mouvements aléatoires des molécules et K est la conductivité thermique moléculaire (caractéristique de l'air à une température donnée). Mais l'air est en mouvement ce qui accroît les échanges de chaleur, ce mouvement a un caractère turbulent et K est alors le coefficient de conductivité turbulente de la chaleur (caractéristique de l'écoulement).

Spanish

Save record 1

Record 2 1988-04-14

English

Subject field(s)
  • Atmospheric Physics
  • Environmental Studies and Analyses
CONT

Mesoscale circulations. In light wind conditions, the transport of air pollutants is often controlled by circulations of horizontal dimension ten to one hundred kilometers. Such mesoscale circulations are driven by local heating or cooling. They are most intense when skies are clear.

French

Domaine(s)
  • Physique de l'atmosphère
  • Études et analyses environnementales

Spanish

Save record 2

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