Comprehensive Parametrization of Surface-Layer Transfer Coefficients for Use in Atmospheric Numerical Models
- First Online:
A new non-iterative bulk parametrization for surface-layer transfer coefficients for momentum and heat is presented. It is applicable for a wide range of aerodynamic and thermal roughness lengths, and includes the effect of the roughness sublayer. As a consequence, the non-iterative method is suitable for every surface type, especially for urban surfaces for which existing non-iterative parametrizations fail. The analytical approximation compares very well with an iterative approach. Our method can be easily implemented in atmospheric numerical models that already employ a non-iterative approach.
KeywordsMonin–Obukhov similarity theory Surface energy balance Surface-layer transfer coefficients Thermal roughness length Turbulent fluxes
Unable to display preview. Download preview PDF.
- Arya SP (2001) Introduction to micrometeorology, 2nd edn. Academic Press, San Diego, 420 ppGoogle Scholar
- Businger JA (1966) Transfer of momentum and heat in the planetary boundary layer. In: Proceedings of the symposium on the Arctic heat budget and atmospheric circulation, pp 305–331Google Scholar
- Garratt JR (1992) The atmospheric boundary layer. Cambridge University Press, Cambridge, 316 ppGoogle Scholar
- Monin AS, Obukhov AM (1954) Dimensionless characteristics of turbulence in the surface layer of the atmosphere. Trudy Geofiz Inst Akad Nauk SSSR 24: 163–187Google Scholar
- Press WH, Teukolsky SA, Vetterling WT, Flannery BP (1992) Numerical recipes in FORTRAN: the art of scientific computing, 2nd edn. Cambridge University Press, Cambridge, 934 ppGoogle Scholar