Tropical circulation refers to the large-scale movement of air in the tropics, primarily driven by the intense heating of the Earth's surface. This heating causes warm air to rise, creating areas of low pressure. As the warm air ascends, cooler air moves in to replace it, resulting in a continuous cycle of air movement known as convection. This circulation is crucial for weather patterns in tropical regions, influencing phenomena such as monsoons and tropical storms. The Hadley Cell is a key component of tropical circulation, where air rises near the equator and descends in the subtropics, helping to distribute heat and moisture across the globe.