Question

992 mb 996 mb F 1000 mb 1004 mb 1. There are three main variables that influence the movement air across the surface of the earth. Gradient pressure, the Coriolis effect, and friction with the Earth's surface. Using the diagram above, identify the direction that wind will flow under different conditions (p. 555-556; Vid: Pressure and Wind (part 1)): a. Pressure gradient force only: b. Pressure gradient, Coriolis, friction in southern hemisphere: C. Pressure gradient and Coriolis effect, no friction in northern hemisphere (high altitude geostrophic): _ ropa b ona nobis bono Odom his b odo to robis 919mmado moning!

Answer 1

A)- pressure gradient force has its direction always from high pressure zone to low pressure zone, here in this diagram A direction represents pressure gradient force,

B)- in Southern Hemisphere, the direction of the Coriolis force would be leftward with respect to the facial direction, and direction of the friction is always opposite to the direction of the motion air, so here

pressure gradient force - A(discussed earlier)

coriolis force- E

friction force- D( against the direction of motion )

C)- in Northern Hemisphere, the direction of the Coriolis force would be rightward with respect to the facial direction, and direction of the friction is always opposite to the direction of the motion air but when air blows at low height but when it flows at higher altitude their will be no friction force, so here-

A)- pressure gradient force- A

B)- Coriolis force- when air blows along A, then Coriolis force are in direction F; when air blows in direction of F, the Coriolis force would be in direction of D, to neutralise the pressure gradient force A.