Energy and ozone fluxes in the atmospheric surface layer observed in Southern Germany highlands

This paper deals with the micrometeorological observations made in September 1992 at Klippeneck (Southern Germany) in the frame of the TRACT Campaign. A tower equipped with a sonic anemometer and fast-response sensors for humidity and ozone concentrations was used. Turbulent fluxes of sensible and latent heat, as well as of ozone, were determined by the eddy-correlation method. The measured fluxes undergo a daily cycle typical of clear sky conditions and of a well-evaporating grass-covered surface, reaching a maximum value at noon. A resistance analysis is made, showing the importance of stomatal activity.