Papers Published

1. Avissar, Roni and Chen, Fei, On the parametrization of subgrid-scale heat and mass transfer in GCMs, American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, vol. 246 (1993), pp. 109 - 116 .
   (last updated on 2007/03/27)

   Abstract:
   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.

   Keywords:
   Mass transfer;Turbulent flow;Rotational flow;Boundary layers;Parameter estimation;Mathematical models;Numerical methods;