Eddy-correlation technique and dynamic chamber technique were employed at the same time and same location t measure fluxes of trace gases in an experiment (Project NOVA) during May 1995. In this paper, diffusivities of momentum, heat and water vapor as calculated from micrometeorological data, are compared using the framework of Monin-Obukhov similarity theory. The applicability of the gradient transport theory to ozone and nitrogen dixode is also investigated. The authors compare and discuss the fluxes and the gradients between two different height levels with the objective of better understanding the flux-gradient relationships for the NO-NO_2O_3 system in the atmospheric surface layer.
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