Abstract
A simple linear model was used to determine the influence of a pressure-dependent friction term on the steady-state solution for long waves produced by heating. Resonance effects, which are found in a frictionless atmosphere, were also evident in the case when friction was concentrated in the boundary layer. As friction increased at low pressure, resonance effects were no longer apparent.
Net potential and kinetic energy changes did not occur when friction was zero. When friction was allowed, the conversion term for potential energy was balanced by the generation term and the northward heat transport term. The net frictional loss of kinetic energy was balanced by the conversion of potential energy into kinetic energy.
