Modulations in the planetary wave field induced by upward-propagating Rossby wave packets prior to stratospheric sudden warming events: A case study


A diagnostic framework is introduced in which anomalous zonally-averaged Rossby wave-activity injection into the stratosphere is decomposed into a contribution solely from zonally-confined upward-propagating Rossby wave packets and another from interaction of the wave packets with the climatological stratospheric planetary waves. To pinpoint the… (More)


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