The correct option is Clockwise.
Explanation
The direction of wind circulation around atmospheric pressure systems is governed by the interaction between the Pressure Gradient Force (which drives air from high to low pressure) and the Coriolis Force (caused by Earth's rotation).
Detailed Analysis:
- Pressure Gradient: In a low-pressure system (cyclone), the atmospheric pressure is lowest at the center. Consequently, air attempts to converge inward from the surrounding high-pressure areas towards the center.
- Coriolis Deflection: The Coriolis force deflects moving objects (including wind) to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.
- Resultant Circulation: In the Southern Hemisphere, as air moves inward towards the low-pressure center, it is deflected to its left. This continuous leftward deflection results in a spiraling motion that creates a clockwise circulation pattern.
Comparison of Circulation Patterns:
- Northern Hemisphere Low (Cyclone): Anticlockwise (Counter-clockwise).
- Southern Hemisphere Low (Cyclone): Clockwise.
- Northern Hemisphere High (Anticyclone): Clockwise.
- Southern Hemisphere High (Anticyclone): Anticlockwise.
Key Takeaway: Cyclonic winds (around a low-pressure center) circulate anticlockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere due to the Coriolis effect.