The model shows an intended destination, a, of wind from the north pole. the actual destination is b. what is the reason for this difference?

i believe the answer is

Coriolis effect

A.

Coriolis effect

Explanation:

Experience summer and the highest angle of isolation.

just search up "seasonal change due to Earth's tilt date" and see any chart also isolation means the incoming solar radiation. and angle means the highest point in the sky where the sun is closest to your zenith or Polaris if in the northern part.

hope I was help.