CHARACTERISTICS OF THE TURBULENCE STRUCTURE OF SURFACE IN THE WINDBREAK AREA

In the paper,the atmospheric turbulence,the energy balance and the profile gradient data in windbreak area were analysed to study the characteristics of the windbreak area surface boundary layer turbulence sturcture and sensible heat flux and latent heat flux.The result shows that:(1) as -0.1-1,the turbulence kinetic energy,turbulence intensity changed fast by stability; (2) turbulence macroscopic quantity σθ/θ*=A(-ξ)1/3,where A=0.6;(3) the author has used the Bowen ratio method,the aerodynamic method and calculated sensible heat flux and latent heat flux over 14-16 m and 4-6 m in the windbreak and with compared.In this paper,the discusses of the errors from each method are also given.