On the Effect of Radiative–Photochemical Processes
on the Vertical Structure of Free Rossby Waves

I. B. Konovalov

Institute of Applied Physics, Russian Academy of Sciences, ul. Ul’yanova 46, Nizhnii Novgorod, 603600 Russia

Received July 14, 1995; in final form, January 5, 1996

Abstract—A simple mechanistic quasi-geostrophic model on a beta plane is used to study the effect of strato
spheric ozone-involving radiative–photochemical processes (RPP) on the vertical structure of free Rossby
waves. In a stationary atmosphere, RPPs are shown to change considerably the vertical structure of the known
barotropic mode of free Rossby waves with horizontal length scales of 3000–5000 km and to cause a strato
spheric maximum of their amplitudes. It is shown analytically and numerically that a previously unknown
RPPinduced decaying mode whose energy is concentrated mainly at heights between 30 and 45 km can exist
in a stationary atmosphere.

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