Tropical circulation refers to the patterns of atmospheric circulation in the Earth's tropical regions, which are characterized by consistently high temperatures and moisture levels. These circulation patterns are influenced by the Earth's rotation, the distribution of heat from the equator to the poles, and the presence of large-scale weather systems such as the Intertropical Convergence Zone (ITCZ) and the Hadley Cell. The Hadley Cell is a large-scale atmospheric circulation pattern that controls the movement of air in the tropics, characterized by rising air near the equator, subsiding air in the subtropics, and the formation of the trade winds. The ITCZ is a region of converging trade winds near the equator, where rising warm, moist air forms thunderstorms and heavy rainfall. Understanding tropical circulation is important for predicting and understanding weather patterns in tropical regions, as well as for studying the global climate system and its variability. Researchers study tropical circulation through a combination of observational data, satellite imagery, and computer models to better understand how the Earth's climate system functions and how it may be changing in response to human activities.