Aug 3, 2006
Abstract
This study contributes to the sparse literature on anemometrically determined roughness parameters in cities. Data were collected using both slow and fast response anemometry in suburban areas of Chicago, Los Angeles, Miami and Vancouver. In all cases the instruments were mounted on tall towers, data were sorted by stability condition, and zero-plane displacement (zd) was taken into account. Results indicate the most reliable slow response estimates of surface ...
Aug 3, 2006
Abstract
Several methods to determine the aerodynamic characteristics of a site through analysis of its surface form (morphometry) are considered in relation to cities. The measures discussed include zero-plane displacement length (zd), roughness length (z0), depth of the roughness sublayer, and aerodynamic conductance. A sensitivity analysis is conducted on seven formulas to estimate zd and nine to estimate z0, covering a wide range of probable urban roughness densities. Geographic ...
Aug 3, 2006
Kanda, M., R. Moriwaki, J. Suzuki, M. Roth and T.R. Oke, 2000: “Study of similarity functions of turbulent statistics in an urban boundary layer”, TENKI, 47, 493-501.
