However, the correlation is not perfect, as the strongest northern hemisphere precipitation occurs while the underlying ocean cools from its may maximum magana. This area is called the intertropical convergence zone itcz. It follows the sun northward and southward during the seasons. Indian monsoons itcz intertropical convergence zone. The thermal equator around which the intertropical convergence zone forms thus moves, depending on the season. The intertropical convergence zone, which is determined by the seasontilt of the earth winds weather in the tropics is essentially a phenomenon of solar radiation and air circulation, along with deviations caused by the earths rotation.
Migrations and dynamics of the intertropical convergence zone. It is characterised by convective activity which generates often vigorous thunderstorms over large areas. The intertropical convergence zone, or itcz, is the region that circles the earth, near the equator, where the trade winds of the northern and southern hemispheres come together. Itcz definition and meaning collins english dictionary. Indian monsoons factors responsible for southwest monsoon and northeast monsoon formation. The area at the equator where the easterly winds converge and rise up into the atmosphere is known as the intertropical convergence zone. Intertropical convergence zone itcz, belt of converging trade winds and rising air that encircles the earth near the equator. Media in category intertropical convergence zone the following 20 files are in this category, out of 20 total. The intertropical convergence zone, usually referred to as the itcz, is a band of disturbed unsettled weather surrounding the earth a few degrees north of the equator where the northeast and southeast tradewinds converge and where the sea surface. Consistent with earlier work, the new analysis yields for julyaugust. Where the itcz is drawn into and merges with a monsoonal circulation, it is. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect.
The intertropical convergence zone, known by sailors as the doldrums or the calms because of its monotonous, windless weather, is the area where the northeast and southeast trade winds converge. Intertropical convergence zone essay example graduateway. Intertropical convergence zones during the active season. Characteristics of an intertropical convergence zone sciencing. Intertropical convergence zone blogs, comments and archive news on. Intertropical convergence zone itcz, also called equatorial convergence zone, belt of converging trade winds and rising air that encircles the earth near the equator. The intertropical convergence zone has been called the doldrums by sailors due to the lack of horizontal air movement the air rises with convection, and its also known as the equatorial convergence zone or intertropical front. Intertropical convergence zone latest breaking news, pictures, videos, and special reports from the economic times. We investigate the causes for a strong high latitude imposed ice land or sea influence on the marine intertropical convergence zone itcz in the community climate model version 3 coupled to a 50m slab ocean. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience.
Learn vocabulary, terms, and more with flashcards, games, and other study tools. Influence of high latitude ice cover on the marine. The name is due to the fact that weather can be really depressing there low pressure combined with becalmed wind, being an apt name for the zone. Although some areas of the zone do have a dry season, others do not. The intertropical convergence zone article about the. The itcz shifts north and south seasonally with the sun. Intertropical convergence zone the lowlevel circulation over the atlantic and pacific oceans is dominated by the easterly flow around the equatorward flank of the subtropical highpressure belts near 30n and 30s. The intertropical convergence zone therefore can see incredible amounts of precipitation and high humidity. Intertropical convergence zone definition of intertropical. Nov 10, 2019 the zone mostly stays close to the equator over water. A shift in the itcz can impact sediment records either through change in the runoff that feeds into the basin e. The intertropical convergence zone synonyms, the intertropical convergence zone pronunciation, the intertropical convergence zone translation, english dictionary definition of the intertropical convergence zone. Since the air cools down with increasing altitude, its ability to store water is continuously reduced. Intertropical convergence zone meaning, pronunciation, translations and examples.
As the earths tilt moves around the sun, different regions are pointed towards the sun more about this in an upcoming unit. The intertropical convergence zone is characterized by inconsistent location around the equator. The doldrums is the saltyspeak word for the intertropical convergence zone. When it lies near the geographic equator, it is called the nearequatorial trough. It is commonly used amongst the sailors and seamen even today. Jan 21, 2016 indian monsoons factors responsible for southwest monsoon and northeast monsoon formation. Intertropical convergence zone the intertropical convergence zone itcz is the area encircling the earth near the equator where winds originating in the northern and southern hemispheres come together. The intertropical convergence zone definition of the. The inter tropical convergence zone, or itcz, is a belt of low pressure which circles the earth generally near the equator where the trade winds of the northern and southern hemispheres come together. Intertropical convergence zones during the active season in. The movement of the itcz between the tropic of cancer and the tropic of capricorn leads to a single rainy season over most of the tropics and subtropics. The intertropical convergence zone itcz of the eastern paci. Also, relative vorticity is less noisy than convergence in daily data. The intertropical convergence zone cfe higher geography physical environments we already know that the equator is a belt where the trade winds converge, bring air from the tropics to the equator.
The intense sun and warm water of the equator heats the air in the itcz, raising its humidity and making it buoyant. Superimposed on this planetaryscale easterly flow are weak synopticscale disturbances that cause the wind to fluctuate between. The marine itcz in all the ocean basins shift meridionally away from the hemisphere with an imposed added ice cover, altering the global hadley circulation with an increased tropical. The term monsoon has been derived from the arabic word mausin or from the malayan word monsin meaning season. In africa in july and august, for instance, the itcz is located just south of the sahel desert at about 20 degrees north of the equator, but the itcz over the pacific and atlantic oceans is usually only 5 to 15 degrees north. Basin is recording changes in the northsouth position of the atlantic intertropical convergence zone itcz and the band of maximum rainfall embedded in it. Winner of the standing ovation award for best powerpoint templates from presentations magazine. Intertropical convergence zone the precipitation and the ssts are clearly correlated to a certain degree in the east pacific, with heavier precipitation occurring over warmer waters. The intertropical convergence zone itcz, known by sailors as the doldrums or the calms because of its monotonous, windless weather, is the area where the northeast and southeast trade winds converge. The term wpd is taken to encompass the terms tropical disturbance and tropical cyclone as well as lesswelldeveloped westward. The intertropical convergence zone will again trigger scattered rainshowers and thunderstorms on tuesday, november 6. Characteristics of an intertropical convergence zone.
The intertropical convergence zone, usually referred to as the itcz, is a band of disturbed unsettled weather surrounding the earth a few degrees north of the equator where the northeast and southeast tradewinds converge and where the sea surface temperatures reach their maximum values. Consequences of the itczs movement are the monsoon seasons that affect areas in the tropics, as well as the formation of tropical. Explicit simulations of the intertropical convergence zone article pdf available in journal of the atmospheric sciences 614. For most of the year, the intertropical convergence zone is located north of the equator. Another complication of the wind patterns is the tilt of the earth and the seasons. It is also a zone of rising air, resulting in low air pressure, cloudiness. Intertropical convergence zone itcz the area where the two. The intertropical convergence zone itcz is the region near the equator where the northeasterly and southeasterly tradewinds converge, forming an often continuous band of clouds or thunderstorms.
Intertropical convergence zones during the active season in daily data. Sensitivity of the atlantic intertropical convergence zone. Intertropical convergence zone meteorology britannica. These clouds occur in scattered masses about 100 km 60 miles across. A broad area of low atmospheric pressure where the northeasterly and southeasterly trade winds converge over. The rising air produces high cloudiness, frequent thunderstorms, and heavy rainfall. Waliser and gautier, 1993 is a zonally elongated narrow band of surface convergence zone with heavy precipitation and deep.
This process is most effective at latitudes where the sun is at zenith, i. As the earth moves with the seasons, the area which receives the highest amount of heat energy from the sun varies. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. The fundamentals of the intertropical convergence zone.
The intertropical convergence zone, where global rainfall is greatest, is a narrow belt of clouds usually centred about six degrees north of the equator. A broad area of low atmospheric pressure where the northeasterly and southeasterly trade winds converge over the equatorial region. Intense heat at the equator puts air in motion, and a worldwide pattern of winds is established. The location of the solar equator determines the location of the itcz. The intertropical convergence zone itcz schneider et al. Pdf explicit simulations of the intertropical convergence zone. The intertropical convergence zone itcz is an eastwestoriented lowpressure region near the equator where the surface northeast and southeast trade winds meet. So, on the equinoxes march and september, the sun shines most directly on the equator. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Ppt intertropical convergence zone itcz powerpoint. Rainfall in the intertropical convergence zone typically is not gentle rainfall that lasts for long periods. The location of the itcz zone varies seasonally, following the suns zenith point from the northern to the southern hemisphere. We are now going to find out a bit more about the zone known as the intertropical convergence zone itcz.
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