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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. [1] This causes a mass accumulation that eventually leads to a vertical movement and to the formation of clouds and precipitation . [ 1 ]
The Intertropical Convergence Zone (ITCZ / ɪ tʃ / ITCH, or ICZ), [1] known by sailors as the doldrums [2] or the calms because of its monotonous windless weather, is the area where the northeast and the southeast trade winds converge. It encircles Earth near the thermal equator though its specific position varies
This climate has no natural seasons in terms of thermal and moisture changes. [10] When it is dominated most of the year by the doldrums low-pressure system due to the presence of the Intertropical Convergence Zone (ITCZ) and when there are no cyclones then the climate is qualified as equatorial. When the trade winds dominate most of the year ...
August position of the ITCZ and monsoon trough in the Pacific Ocean, depicted by area of convergent streamlines in the northern Pacific. The monsoon trough is a portion of the Intertropical Convergence Zone in the Western Pacific, [1] [2] as depicted by a line on a weather map showing the locations of minimum sea level pressure, [1] and as such, is a convergence zone between the wind patterns ...
This region is known as the Intertropical Convergence Zone. This zone is the result of trade winds from the northern and southern part of the hemisphere eventually joining together. [1] Still another definition states that the thermal equator is the latitude at which insolation is identical throughout the year.
Monsoon Depression near Bangladesh. The monsoon trough, also known as the Intertropical Convergence Zone (), is depicted by a line on a weather map showing the locations of minimum sea level pressure within the monsoon region, and is a convergence zone between the wind patterns of the southern and northern hemispheres.
These extratropical convergence zones are occupied by the polar fronts where air masses of polar origin meet and clash with those of tropical or subtropical origin in a stationary front. [2] This convergence of rising air completes the vertical cycle around the polar cell in each latitudinal hemisphere's polar region.
The convergence line ahead of the low became known as either the steering line or the warm front. The trailing convergence zone was referred to as the squall line or cold front. Areas of clouds and rainfall appeared to be focused along these convergence zones. The concept of frontal zones led to the concept of air masses.