Abstract
Carefully chosen numerical values for the viscosity and thermal conductivity of air and diffusivity of water vapor in air are tabulated for temperatures from −20C to +4OC and for a pressure of 1000 mb. A summary of physical constants relating to air is included. Abstract Carefully chosen numerical values for the viscosity and thermal conductivity of air and diffusivity of water vapor in air are tabulated for temperatures from −20C to +4OC and for a pressure of 1000 mb. A summary of physical constants relating to air is included.