The zone of separation between the wind circulations proper to the northern and southern hemispheres. Over the Atlantic and Pacific Oceans, where it is closely related to the Doldrums, it is the boundary between the north-east and south-east trade-winds.
The equatorial convergence zone in the atmosphere.
(usually abbr. ITCZ): a zone (often rather broad, but sometimes quite narrow), which separates the 'air-masses' brought together by the low-level outflow from the sub-tropical high pressure belts north & south of the equator. Over the oceans, the zone can be well marked; over land, sensible heating usually leads to 'breaks' or other anomalies, and the regional-scale monsoon circulations also distort, or swamp the idealised structure of the ITCZ. Cloudiness (& hence precipitation activity) can vary sharply over a period of 24hr. Day-to-day change of position is often small, but the zone migrates north & south through the course of a year, roughly in sympathy with the changing position of the sun.
( ITCZ) Zone of low atmospheric pressure and ascending air located at or near the equator. Rising air currents are due to global wind convergence and convection from thermal heating. Location of the thermal equator.
An area near the Eequator where warm air rises, and the tradewinds from the northern and southern hemispheres meet (converge). Over the ocean, the intertopical convergence zone (ITCZ) is also known as the doldrums (an area of slight, variable winds).
The tropical region where the air rises most strongly; moves north and south with the passage of the sun overhead.
The zone separating the wind circulations of the northern and southern hemispheres. Over the Atlantic and Pacific Oceans, where it is closely related to the doldrums, it is the zone between the north-east and the south-east trade winds. It was formerly known as the "intertropical font".
A low pressure trough and minimum east wind, lying between the trade regions of the two hemispheres, that are nearly continuous around the world on climatological charts.
( ITCZ) is the region of cloudiness near the Equator caused by the convergence of the Trade Winds. [ Image of ITCZ
The axis separating the northeast trades and the southeast trades where convergence occurs and tropical cyclones are most likely to develop. This line circling the globe follow the zone of most intense solar radiation north to south back and forth over the equator; its northern most position in late summer and southern most position in the Southern Hemisphereâ€™s late summer.
the axis dividing the southeast trades from the northeast trades, toward which the surface winds tend to converge
The region that circles the Earth, near the equator, where the trade winds of the Northern and Southern Hemispheres come together.
(abbrev. ITCZ) The boundary zone separating the northeast trade winds of the Northern Hemisphere from the southeast trade winds of the Southern Hemisphere.
The zone where subtropical trade winds from the northern and southern hemispheres converge. It is associated with upward motion and active convection. It tends to be located at 5N, but its location varies.
A band of low pressure that forms over the regions of the warmest waters and land masses in the tropics.
An area where the Northern and Southern Hemispheric trade winds converge, usually located between 10 degrees North and South of the equator. It is a broad area of low pressure where both the Coriolis force and the low-level pressure gradient are weak, occasionally allowing tropical disturbances to form. It fluctuates in location, following the sun's rays, so that during the Northern Hemisphere summer, the ITCZ moves northward over the southern North Atlantic and southern Asia.
1. (Also called ITCZ, equatorial convergence zone.) The axis, or a portion thereof, of the broad trade-wind current of the Tropics. This axis is the dividing line between the southeast trades and the northeast trades (of the Southern and Northern Hemispheres, respectively). It is collocated with the ascending branch of the Hadley cell. At one time it was held that this was a convergence line along its entire extent. It is now recognized that actual convergence occurs only along portions of this line. For further discussion, see equatorial trough; see also intertropical front, doldrums. 2. Same as meteorological equator.
The Intertropical Convergence Zone (ITCZ), also known as the Intertropical Front, Monsoon trough or the Equatorial Convergence Zone, is a belt of low pressure girdling Earth at the equator. It is formed by the vertical ascent of warm, moist air from the latitudes above and below the equator.