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388 - ATPL Question Bank in English - In idealised frictionless anticyclonic gradient flow, why is wind speed greater than the geostrophic speed for the same pressure gradient and air density?

Question 388 - Meteorology - ATPL - Airline Transport Pilot Licence

The centrifugal force opposes the outward pressure-gradient force.
The Coriolis force is supplemented by surface friction even though the flow is frictionless.
The inward Coriolis force must balance both the outward pressure-gradient force and the outward centrifugal force.
The pressure-gradient force and the centrifugal force both act inward toward the high-pressure centre.

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