Papers Published

1. Avissar, Roni, Which type of soil-vegetation-atmosphere transfer scheme is needed for general circulation models: A proposal for a higher-order scheme, Journal of Hydrology, vol. 212-213 no. 1-4 (1998), pp. 136 - 154 [S0022-1694(98)00227-3] .
   (last updated on 2007/03/27)

   Abstract:
   Various aspects of land-atmosphere interactions at the microscale and the mesoscale are discussed with regard to the soil-vegetation-atmosphere transfer (SVAT) scheme for general circulation models. Among the land-surface characteristics in advanced SVAT schemes, only stomatal conductance, soil-surface wetness, leaf area index, surface roughness, and albedo play a major role in the redistribution of energy at the ground surface. However, the relationship between these characteristics and the surface heat and momentum fluxes is strongly nonlinear. The landscape discontinuities resulting from spatial heterogeneity of these characteristics can induce atmospheric mesoscale circulations.

   Keywords:
   Soils;Vegetation;Mathematical models;Boundary layers;Clouds;Precipitation (meteorology);