Abstract
During AMTEX 1974, the 50m tower on Tarama Island reported a strong diurnal cycle in the eddy fluxes of sensible and latent heat at 50m height even for land fetches as short as 1km. A numerical assessment is made demonstrating that the large aerodynamic roughness of the island, combined with unstable stratification in the lower atmosphere enables significant fractions of the land fluxes to be transported through the 50m level. On an energy basis, however, it is difficult to account for the high values of the fluxes observed.
