Below is a vector diagram indicating the velocity V of an air parcel at the surf

Question

Below is a vector diagram indicating the velocity V of an air parcel at the surface and the horizontal forces (labeled a, b, and c) acting on that air parcel. The net force a + b + c is zero.

Identify the force represented by each vector a, b, and c.

Draw the corresponding isobars in the above diagram assuming straight parallel isobars. Indicate the high pressure and low pressure on your map.

If one is looking down on the surface of the Earth, to which hemisphere does this diagram apply?

3. Suppose the vector diagram above (in problem 2) is at latitude 33°. Qualitatively describe or clearly show how the vector diagram (vectors a, b, c, and V) above would change (in direction and magnitude) for the same surface and isobars if the latitude were instead at 55°.

Explanation / Answer

Below is a vector diagram indicating the velocity V of an air parcel at the surf

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