The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The effects of the Madden–Julian oscillation and quasi-biennial oscillation in the equatorial stratosphere on the dynamic processes in the extratropical stratosphere has been studied with the use of a model of the middle and upper atmospheric circulation. The heat source of the Madden–Julian oscillation in tropics is specified as a longitude-modulated wave perturbation with a zonal wavenumber of m...