Question

Westerlies in southern hemisphere are stronger and persistent than in northern hemisphere. Why ? 

1. Southern hemisphere has less landmass as compared to northern hemisphere. 

2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. Which of the statements given above is/are correct ? 

(a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

Answer 1

(a) The speed of these winds are higher and persistence in southern hemisphere. The land mass in southern hemisphere is lesser in comparison on toss northern hemisphere. As these winds crosses the landmass its velocity decreases. Thus the effect of westerlies is less over northern hemisphere than in southern hemisphere.