The effect of heating on the propagation speed of tropospheric equatorial waves

Summary An earlier investigation concerning the effect of vertical wind shear in the basic current on the propagation speed and divergence of tropospheric equatorial waves is extended to include the effect of parameterized heating. The combined effct of shear and heating is to decrease the propagation speed, particularly at wavelengths greater than 2000 km. Further, the effect of the heating is to increase the divergence to the correct order of magnitude. As in the no-heating case, the divergence decreases with increasing wavelength.