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Experiment easier with the apparatus upside down:

The Plumb-McEwan experiment: This is a laboratory counterpart of the QBO (the quasi-biennial oscillation of the east-west winds in the equatorial lower stratosphere).

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Experiment easier with the apparatus upside down:

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  1. The Plumb-McEwan experiment: This is a laboratory counterpart of the QBO (the quasi-biennial oscillation of the east-west winds in the equatorial lower stratosphere). • The flow in a stratified, non-rotating annulus is driven away from solid rotation (anti-friction again) by nothing but the imposition of fluctuations at an upper or lower boundary. These are organized by the gravity-wave propagation mechanism:

  2. Experiment easier with the apparatus upside down: I

  3. This is the Kyoto University version of the Plumb-McEwan experiment: www.gfd-dennou.org/library/gfd_exp/ or websearch QBO “Tech Tips”

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