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Basically, a cyclone is a low atmospheric pressure zone where wind flows inward spiral direction, which is anti-clockwise in northern hemisphere and vice-versa. Tropical cyclones are “warm core” storm systems, powered by enthalpy of condensation of high moisture air, which condense at higher altitudes. Tropical cyclones are characterized by the release of tremendous amounts of latent heat of condensation of moist air. These are initiated due to a nearby upper trough, which after the formation of the initial disturbance, depend on a storm-relative upper level high to maintain and increase their strength. Thus tropical cyclone formation can be visualized as gigantic vertical heat engines powered by Earth's gravity and rotation. The latent heat of condensation is absorbed by air up to great altitudes and this system continues to sustain itself until the energy supply is stopped. The dynamics of cyclone ( inward spiral movement at fixed space and translational motion with space and time) is defined by Coriolis component of gravity due to Earth's rotation, and Earth's acceleration due to gravity.
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