2015 · Q29
Which one of the following is the pattern of circulation around a low-pressure area in the northern hemisphere?
General KnowledgeGeography
- ACounter-clockwise and away from the centre
- BClockwise and away from the centre
- CCounter-clockwise and towards the centre
- DClockwise and towards the centre
Explanation
Around a Northern Hemisphere low, air converges toward the centre and the Coriolis force deflects it rightward, producing counter-clockwise, inward (cyclonic) circulation. Clockwise-and-outward flow describes a high-pressure anticyclone, and away from the centre contradicts the convergence that defines a low. Hence C.