what are trade winds in geography
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Trade winds The trade winds are the prevailing pattern of easterly surface winds found in the tropics, within the lower portion of the Earth's atmosphere, in the lower section of the troposphere near the Earth's equator.he surface air that flows from these subtropical high-pressure belts toward the Equator is deflected toward the west in both hemispheres by the Coriolis effect. These winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere.
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- Cold heavy air flows south from the north pole and is bent west, forming the polar easterlies. Warm air rises at the equator drawing air from the north which bends to the west, contributing to the trade winds. The Coriolis effect bends the westerlies and trade winds slightly clockwise in the northern hemisphere.rade Winds: South of about 30 degrees the northern or northeast trade winds blow mostly from the northeast toward the equator. These were the sailor's favorite winds, since the weather was warm, and the winds usually blew steadily in an advantageous direction. Columbus used these to sail to the Caribbean.
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- The westerlies, anti-trades,[1] or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude.
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Contents Definition. 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. It is characterised by convective activity which generates often vigorous thunderstorms over large areas.here the trade winds are weak, the ITCZ is characterised by isolated Cumulus (Cu) and Cumulonimbus (Cb) cells. However, where the trade winds are stronger, the ITCZ can spawn a solid line of active Cb cells embedded with other cloud types developing as a result of instability at higher levels.
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What are the trade winds? Known to sailors around the world, the trade winds and associated ocean currents helped early sailing ships from European and African ports make their journeys to the Americas. Likewise, the trade winds also drive sailing vessels from the Americas toward Asia.
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- These winds are often grouped together as trade winds, easterlies, and westerlies. Trade winds - Trade winds occur near the equator and flow from either the north or south towards the equator. They curve towards the west due to the spin of the Earth.
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Prevailing winds Winds are part of Earth's atmospheric circulation. Play media. Global surface wind vector flow lines colored by wind speed from June 1, 2011 to October 31, 2011. Prevailing winds are winds that blow predominantly from a single general direction over a particular point on the Earth 's surface.
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Wind Pronunciation: (wind), [key]. 1. Also, trade' winds. Also called trades. any of the nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere.ronunciation: (wind), [key]. 1. Also, trade' winds. Also called trades. any of the nearly constant easterly winds that dominate most of the tropics and subtropics throughout the world, blowing mainly from the northeast in the Northern Hemisphere, and from the southeast in the Southern Hemisphere.
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Geography for Kids Jet streams are super high-speed winds. Each hemisphere’s westerly has two main jet streams. Closer to the poles we find the polar jet stream. At a slightly lower latitude we find the subtropical jet stream.
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- Earth's rotation causes the trade winds, in a way. If Earth didn't rotate, the wind at these latitudes would blow straight from the subtropical highs to the ITCZ.n the Northern Hemisphere, the Earth rotates counterclockwise so the wind is deflected to the right. The Southern Hemisphere rotates clockwise deflecting the wind to the left. Regardless, the Coriolis effect only influences the direction of the wind, not its speed.
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Local Winds Sea breezes and land breezes are two familiar categories of local winds that are driven by differences in temperature and in air pressure, which is the pressure exerted by air on a given area. A sea breeze blows from the water to the shore. It comes as a welcome relief to coastal inhabitants on a hot day.
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trade winds trade winds. trade winds, movement of air toward the equator, from the NE in the Northern Hemisphere and from the SE in the Southern Hemisphere.he air converging at the doldrums rises high over the earth, recirculates poleward, and sinks back toward the earth's surface in the region of the horse latitudes, thus completing a cycle. The air does not move directly north or south because it is deflected by the rotation of the earth.
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Trade Winds At the same time, in the Southern Hemisphere above the subtropical high, which is located just below the equator, we also find that winds are blowing from the east towards the west. The result is that between 30 ° North latitude and 30 ° South latitude winds usually blow from the east towards the west.Winds are named for the direction from which they come. Thus, this wind is referred to as an easterly wind. These easterly winds are known as the trade winds.t the same time, in the Southern Hemisphere above the subtropical high, which is located just below the equator, we also find that winds are blowing from the east towards the west. The result is that between 30 ° North latitude and 30 ° South latitude winds usually blow from the east towards the west.
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Trade Winds, Horse Latitudes, and the Doldrums Trade Winds. Blowing from the subtropical highs or horse latitudes toward the low pressure of the ITCZ are the trade winds. Named from their ability to quickly propel trading ships across the ocean, the trade winds between about 30° latitude and the equator are steady and blow about 11 to 13 miles per hour.
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- Two additional belts of circulating air exist in the temperate latitudes (between 30° and 60° latitude) and near the poles (between 60° and 90° latitude). Figure 2: Hadley cells and prevailing winds. Solar warming of the tropics drives atmospheric circulation in three cells. Rotation of the Earth generates Coriolis forces that create the easterly trade winds below 30° latitude and polar easterlies above 60° latitude.
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Trade winds Because winds are named for the direction from which the wind is blowing, these winds are called the northeasterly trade winds in the Northern Hemisphere and the southeasterly trade winds in the Southern Hemisphere. The trade winds of both hemispheres meet at the doldrums.he surface air that flows from these subtropical high-pressure belts toward the Equator is deflected toward the west in both hemispheres by the Coriolis effect. These winds blow predominantly from the northeast in the Northern Hemisphere and from the southeast in the Southern Hemisphere.
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Wind Driven Surface Currents: Equatorial Currents Background Trade winds drive both North and South Equatorial Currents westward, thus transporting warm ocean-surface waters in that direction. Equatorial Counter Currents and Equatorial Under Currents return some warm waters eastward.
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- Trade Winds. In the Northern Hemisphere, warm air around the equator rises and flows north toward the pole. As the air moves away from the equator, the Coriolis effect deflects it toward the right.It cools and descends near 30 degrees North latitude.The descending air blows from the northeast to the southwest, back toward the equator (Ross, 1995). A similar wind pattern occurs in the Southern Hemisphere; these winds blow from the southeast toward the northwest and descend near 30 degrees South latitude.t cools and descends near 30 degrees North latitude. The descending air blows from the northeast to the southwest, back toward the equator (Ross, 1995). A similar wind pattern occurs in the Southern Hemisphere; these winds blow from the southeast toward the northwest and descend near 30 degrees South latitude.
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What Are Global Winds? What is the movement of air called? Global winds are composed of three different wind patterns: trade winds, polar easterlies and westerlies. The trade winds are located from 30 degrees latitude, north and south, to the equator. When cooling air sinks, the air flows steadily back down the equator.
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- Global wind patterns: Winds are named by the direction from which they blow. The globe is encircled by six major wind belts, three in each hemisphere.From pole to equator, they are the polar easterlies, the westerlies, and the trade winds. All six belts move north in the northern summer and south in the northern winter.rade Winds: South of about 30 degrees the northern or northeast trade winds blow mostly from the northeast toward the equator. These were the sailor's favorite winds, since the weather was warm, and the winds usually blew steadily in an advantageous direction. Columbus used these to sail to the Caribbean.
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Hierarchy An example of a triangle diagram appears to the right. An organizational chart is the diagram of a hierarchy within an organization, and is depicted in tree form below.
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The three major wind systems? It is possible that the answer your teacher wants is the three wind belts within the global winds. Those are: Polar Easterlies: From 60-90 degrees latitude. Prevailing Westerlies: From 30-60 degrees latitude (aka Westerlies). Tropical Easterlies: From 0-30 degrees latitude (aka Trade Winds).
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Inter-Tropical Convergence Zone It exists because of the convergence of the trade winds. In the northern hemisphere the trade winds move in a southwesterly direction, while in the southern hemisphere they move northwesterly. The point at which the trade winds converge forces the air up into the atmosphere, forming the ITCZ.
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- In the high pressure regions at the eastern edge of the ocean basins where the trade winds originate, the climate is typically hot, sunny, and dry (Baja California, for example); as the winds move westward across the oceans, they gain moisture, which is eventually dumped at the western side of the ocean basins.he zones of the Earth s major winds: the trade winds and the westerlies. Discovery of the Trade Winds and the Voyage of Columbus. A diagram illustrating Columbus first route to the New World (in red) and the trade winds he used to get there (in black).