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Numerical simulation of tropical cumulus clouds and their interaction with the subcloud layer

Krueger, Steven K.

Journal of the atmospheric sciences, 1988-08, Vol.45 (16), p.2221-2250 [Periódico revisado por pares]

Legacy CDMS: American Meteorological Society

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  • Título:
    Numerical simulation of tropical cumulus clouds and their interaction with the subcloud layer
  • Autor: Krueger, Steven K.
  • Assuntos: Earth, ocean, space ; Exact sciences and technology ; External geophysics ; Meteorology ; Meteorology And Climatology
  • É parte de: Journal of the atmospheric sciences, 1988-08, Vol.45 (16), p.2221-2250
  • Notas: CDMS
    Legacy CDMS
    ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: A two-dimensional numerical model, with an emphasis on turbulent processes in the boundary layer and in clouds, was developed for simulating an ensemble of cumulus clouds. The model was used to investigate the response of tropical cumulus clouds to imposed large-scale vertical advection by performing two simulations which were identical except that one was with upward large-scale vertical velocity (the 'disturbed' case) and the other was without any advection (the 'undisturbed' case). The results showed that deep cumulus clouds formed in the disturbed case, while only shallow clouds formed in the undisturbed case. The subcloud layer (SCL) in the disturbed case was strongly affected by cumulus circulations and rain evaporation, with both cumulus updrafts and downdrafts being important contributors to the SCL sensible and latent heat fluxes. Cumulus-scale circulation in the disturbed SCL determined where new clouds formed by creating convergence zones and moisture anomalies.
  • Editor: Legacy CDMS: American Meteorological Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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