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Abstract The impact of a parameterized spectrum of gravity waves on the simulation of the stratosphere in the Met Office Unified Model (UM) is investigated. In the extratropical mesosphere, the gravity wave forcing acts against the mean zonal wind and it dominates over the resolved wave forcing. In the extratropical stratosphere, the gravity wave forcing gives a small acceleration in the direction of the mean zonal wind. Both summer and winter stratospheric jets have improved maximum strength and tilt with height when the parameterized gravity wave forcing is included, although the southern winter jet is still more vertically aligned than in observational analyses. The timing of the seasonal breakdown of the southern winter vortex is also improved by the addition of gravity wave forcing. In the Tropics, the most obvious impact is that the model reproduces the quasi-biennial oscillation (QBO) with a realistic mean and range of periods. It also reproduces most of the observed asymmetries between the easterly anđź“Ť Venue: Rebel
🏠Address: 11 Polson Street
🗺️ Extended Address: Toronto, Canada
🌆 City: Toronto
đź“Ť Location: 43.641, -79.3547Error occurred: DateTime::__construct(): Failed to parse time string (Rebel) at position 0 (R): The timezone could not be found in the database
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Event Venue & Nearby Stays
Rebel, 11 Polson Street, Toronto, Canada, Canada
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