Focusing solely on the two states you identified I part(c) regarding divergence?

Question

Focusing solely on the two states you identified I part(c) regarding divergence? Offer a sentence of explanation. Why would using a chart such as the one you created on Map 13 BY ITSELF potentially give you an incomplete picture of surface pressure tendency? In your answer, you should mention the ageostrophic processes that yield insight into divergence (include and equation to back up your assertion) as well as other processes that control surface pressure tendency (include a different equation to back up your assertion). In class. I showed that the divergence of the geostrophic wind on a constant pressure surface could be written as where vg is the north-south component of the geostrophic wind and f = 2 Ohm sin Phi = is the Coriolis parameter where Phi is latitude and Ohm is the rotation rate of the earth. Derive an alternative form for the divergence of the geostrophic wind that incorporates the cotangent (yes. cotangent) of the latitude.

Explanation / Answer

(Delta_p.V_g = -v_g/frac{partial f}{partial y})

(f=2Omega sinphi)

(1/frac{partial f}{partial y} = 1/(2Omega sinphi) * 1/a*rac{partial (2Omega sinphi)}{partial phi} =cotphi/a)

This gives

(Delta_p.V_g = -v_g*cotphi/a)

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