Abstract

The components of the energy budget (net radiation Rn, soil heat flux G, canopy heat storage S, turbulent fluxes of sensible and latent heat ( H, λE) were determined above and inside a 30 m tall spruce forest in central Germany in summer 1994 using micrometeorological equipment and eddy correlation instruments. Data of net radiation, turbulent fluxes and profiles of temperature and wind speed are compared with results obtained with the Forest–Land–Atmosphere-ModEl (FLAME), which is initialized with temperature, humidity and wind speed profiles within and above the canopy and boundary conditions in the soil and at the top of the atmospheric boundary layer. The model is able to quantify the contribution of large eddies transporting momentum and scalar quantities from above the canopy into the trunk space.

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