On the parametrization of subgrid-scale heat and mass transfer in GCMs

Roni Avissar, Fei Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Assuming that atmospheric variables can be separated into large scale, mesoscale, and turbulent scale, Avissar and Chen (1992a) developed a set of prognostic equations for general circulation models (GCM's), which include both mesoscale and turbulent fluxes. They suggested using the mean mesoscale kinetic energy (MKE) for parameterizing mesoscale fluxes in these models. In the present study, we simulated the atmospheric planetary boundary layer (PBL) that develops over a 50-km-wide island, to emphasize the potential use of MKE to bridge between landscape discontinuities and mesoscale fluxes and, therefore, to parameterize mesoscale fluxes generated by such subgrid-scale landscape discontinuities in GCM's.

Original languageEnglish (US)
Title of host publicationHeat Transfer in Turbulent Flows - 1993
PublisherPubl by ASME
Number of pages8
ISBN (Print)079181159X
StatePublished - 1993
Externally publishedYes
Event29th National Heat Transfer Conference - Atlanta, GA, USA
Duration: Aug 8 1993Aug 11 1993

Publication series

NameAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
ISSN (Print)0272-5673


Conference29th National Heat Transfer Conference
CityAtlanta, GA, USA

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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