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CLIMATE/EARTH 401�Geophysical Fluid Dynamics�Dynamical Meteorology

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Vorticity 7: Advection Absolute Vorticity

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Vorticity and Divergence

  • Related to shear �of the velocity field.

∂v/∂x-∂u/∂y

  • Related to stretching �of the velocity field.

∂u/∂x+∂v/∂y

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Let’s go through this term by term

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Vorticity Advection

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Vorticity Advection

Advection:

  • Change in the vertical component of vorticity due to advection of both relative and planetary vorticity

u•∇(ζ+f )

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End: Vorticity 7: Advection Absolute Vorticity