Hunt, B. G., and S. Manabe, 1968: An investigation of thermal tidal oscillations in the earth's atmosphere
using a general circulation model. Monthly Weather Review, 96 (11), 753-766.
Abstract: An investigation of tidal oscillations in the earth's atmosphere has been
made using an 18 vertical level, hemispheric general circulation model.
This approach permitted these tides to be investigated without resorting
to linearization of the governing differential equations, as is required
by the conventional approach. In addition, it allows the tides to be studied
in relation to a realistic atmosphere, and thus in their actual roles as
small perturbations, at least in the lower atmosphere, on the basic meteorological
fields. Day-to-day surface pressure variations in good agreement with observation
were produced by the model, the diurnal and semidiurnal pressure amplitudes
and phases also being close to the observed values. An investigation into
the excitation mechnaism of the oscillation gave results supporting previous
work in attributing the dominant cause of the tides to absorption of solar
radiation by water vapor and ozone in the atmosphere. Contrary to previous
studies, water vapor was found to be of primary importance in exciting both
the diurnal and semidiurnal oscillations in the model atmosphere.
Generally speaking, the tidal wind and temperature variations obtained were
also in agreement with observation and other theoretical work.