1968 Volume 46 Issue 3 Pages 215-220
Large scale wave disturbances in equatorial regions, and, in particular, those described by Maruyama (1967), are discussed in terms of forced oscillations. In doing this we are able to explain the importance of the waves' tilts, the role of the beta effect, and the waves' contributions to the mean zonal momentum, Consideration of the last items leads us to conjecture on the nature of those disturbances in the equatorial stratosphere which were not isolated in the analysis of Maruyama.