Definition of Convergence zone
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A convergence zone in meteorology is a region in the atmosphere where two prevailing flows meet and interact, usually resulting in distinctive weather conditions. This create a mass accumulation that eventually leads to a vertical movement and the formation of clouds and precipitation. Large scale convergence, called synoptic scale convergence, provides weather systems such as baroclinic troughs, low-pressure areas, and cyclones . Small scale convergence will give from isolated cumulus clouds to large areas of thunderstorms. The inverse of the convergence is the divergence.
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